CCNA 1 Final Exam Review

What method is used to manage contention-based access on a wireless network? -token passing -CSMA/CA -priority ordering -CSMA/CD

-CSMA/CA

What service is provided by DHCP? -An application that allows real-time chatting among remote users. -Allows remote access to network devices and servers. -Dynamically assigns IP addresses to end and intermediary devices. -Uses encryption to provide secure remote access to network devices and servers.

-Dynamically assigns IP addresses to end and intermediary devices.

Which two acronyms represent the data link sublayers that Ethernet relies upon to operate? (Choose two.) -SFD -LLC -CSMA -MAC -FCS

-LLC -MAC

What attribute of a NIC would place it at the data link layer of the OSI model? -attached Ethernet cable -IP address -MAC address -RJ-45 port -TCP/IP protocol stack

-MAC address

A network team is comparing topologies for connecting on a shared media. Which physical topology is an example of a -hybrid topology for a LAN? -bus -extended star -ring -partial mesh

-extended star

What routing table entry has a next hop address associated with a destination network? -directly-connected routes -local routes -remote routes -C and L source routes

-remote routes

Refer to the exhibit. Which protocol was responsible for building the table that is shown? DHCP ARP DNS ICMP

ARP

Users report that the network access is slow. After questioning the employees, the network administrator learned that one employee downloaded a third-party scanning program for the printer. What type of malware might be introduced that causes slow performance of the network? virus worm phishing spam

worm

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet? -Header Length -Differentiated Services -Time-to-Live -Fragment Offset

-Time-to-Live

What service is provided by HTTPS? -Uses encryption to provide secure remote access to network devices and servers. -Resolves domain names, such as cisco.com, into IP addresses. -Uses encryption to secure the exchange of text, graphic images, sound, and video on the web. -Allows remote access to network devices and servers.

-Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

Which two issues can cause both runts and giants in Ethernet networks? (Choose two.) -using the incorrect cable type -half-duplex operations -a malfunctioning NIC -electrical interference on serial interfaces -CRC errors

-half-duplex operations -a malfunctioning NIC

Which layer of the TCP/IP model provides a route to forward messages through an internetwork? application network access internet transport

internet

Which two traffic types use the Real-Time Transport Protocol (RTP)? (Choose two.) video web file transfer voice peer to peer

video & voice

What service is provided by HTTP? -Uses encryption to secure the exchange of text, graphic images, sound, and video on the web. -Allows for data transfers between a client and a file server. -An application that allows real-time chatting among remote users. -A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

-A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

What are three characteristics of the CSMA/CD process? (Choose three.) -The device with the electronic token is the only one that can transmit after a collision. -A device listens and waits until the media is not busy before transmitting. -After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired. -All of the devices on a segment see data that passes on the network medium. -A jam signal indicates that the collision has cleared and the media is not busy. -Devices can be configured with a higher transmission priority.

-A device listens and waits until the media is not busy before transmitting. -After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired. -All of the devices on a segment see data that passes on the network medium.

What service is provided by FTP? -A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web. -An application that allows real-time chatting among remote users. -Allows for data transfers between a client and a file server. -Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

-Allows for data transfers between a client and a file server.

What happens when the transport input ssh command is entered on the switch vty lines? -The SSH client on the switch is enabled. -The switch requires a username/password combination for remote access. -Communication between the switch and remote users is encrypted. -The switch requires remote connections via a proprietary client software.

-Communication between the switch and remote users is encrypted.

An administrator defined a local user account with a secret password on router R1 for use with SSH. Which three additional steps are required to configure R1 to accept only encrypted SSH connections? (Choose three.) -Configure DNS on the router. -Generate two-way pre-shared keys. -Configure the IP domain name on the router. -Generate the SSH keys. -Enable inbound vty SSH sessions. -Enable inbound vty Telnet sessions.

-Configure the IP domain name on the router. -Generate the SSH keys. -Enable inbound vty SSH sessions.

A user is attempting to access http://www.cisco.com/ without success. Which two configuration values must be set on the host to allow this access? (Choose two.) -DNS server -source port number -HTTP server -source MAC address -default gateway

-DNS server -default gateway

Which two statements are correct about MAC and IP addresses during data transmission if NAT is not involved? (Choose two.) -Destination IP addresses in a packet header remain constant along the entire path to a target host. -Destination MAC addresses will never change in a frame that goes across seven routers. -Every time a frame is encapsulated with a new destination MAC address, a new destination IP address is needed. -Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another. -A packet that has crossed four routers has changed the destination IP address four times.

-Destination IP addresses in a packet header remain constant along the entire path to a target host. -Destination and source MAC addresses have local significance and change every time a frame goes from one LAN to another.

A new network administrator has been asked to enter a banner message on a Cisco device. What is the fastest way a network administrator could test whether the banner is properly configured? -Enter CTRL-Z at the privileged mode prompt. -Exit global configuration mode. -Power cycle the device. -Reboot the device. -Exit privileged EXEC mode and press Enter .

-Exit privileged EXEC mode and press Enter .

A network technician is researching the use of fiber optic cabling in a new technology center. Which two issues should be considered before implementing fiber optic media? (Choose two.) -Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires. -Fiber optic cabling requires specific grounding to be immune to EMI. -Fiber optic cabling is susceptible to loss of signal due to RFI. -Fiber optic cable is able to withstand rough handling. -Fiber optic provides higher data capacity but is more expensive than copper cabling.

-Fiber optic cabling requires different termination and splicing expertise from what copper cabling requires. -Fiber optic provides higher data capacity but is more expensive than copper cabling.

What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.) -IP addresses -interface descriptions -MAC addresses -next-hop addresses -Layer 1 statuses -speed and duplex settings

-IP addresses -Layer 1 statuses

What are two features of ARP? (Choose two.) -When a host is encapsulating a packet into a frame, it refers to the MAC address table to determine the mapping of IP addresses to MAC addresses. -An ARP request is sent to all devices on the Ethernet LAN and contains the IP address of the destination host and its multicast MAC address. -If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast. -If no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment. -If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.

-If a host is ready to send a packet to a local destination device and it has the IP address but not the MAC address of the destination, it generates an ARP broadcast. -If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply.

What mechanism is used by a router to prevent a received IPv4 packet from traveling endlessly on a network? -It checks the value of the TTL field and if it is 0, it discards the packet and sends a Destination Unreachable message to the source host. -It checks the value of the TTL field and if it is 100, it discards the packet and sends a Destination Unreachable message to the source host. -It decrements the value of the TTL field by 1 and if the result is 0, it discards the packet and sends a Time Exceeded message to the source host. -It increments the value of the TTL field by 1 and if the result is 100, it discards the packet and sends a Parameter Problem message to the source host.

-It decrements the value of the TTL field by 1 and if the result is 0, it discards the packet and sends a Time Exceeded message to the source host.

What is an advantage to using a protocol that is defined by an open standard? -A company can monopolize the market. -The protocol can only be run on equipment from a specific vendor. -An open standard protocol is not controlled or regulated by standards organizations. -It encourages competition and promotes choices.

-It encourages competition and promotes choices.

How does the service password-encryption command enhance password security on Cisco routers and switches? -It requires encrypted passwords to be used when connecting remotely to a router or switch with Telnet. -It encrypts passwords that are stored in router or switch configuration files. -It requires that a user type encrypted passwords to gain console access to a router or switch. -It encrypts passwords as they are sent across the network.

-It encrypts passwords that are stored in router or switch configuration files.

A client is using SLAAC to obtain an IPv6 address for its interface. After an address has been generated and applied to the interface, what must the client do before it can begin to use this IPv6 address? -It must send a DHCPv6 INFORMATION-REQUEST message to request the address of the DNS server. -It must send a DHCPv6 REQUEST message to the DHCPv6 server to request permission to use this address. -It must send an ICMPv6 Router Solicitation message to determine what default gateway it should use. -It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.

-It must send an ICMPv6 Neighbor Solicitation message to ensure that the address is not already in use on the network.

What is one main characteristic of the data link layer? -It generates the electrical or optical signals that represent the 1 and 0 on the media. -It converts a stream of data bits into a predefined code. -It shields the upper layer protocol from being aware of the physical medium to be used in the communication. -It accepts Layer 3 packets and decides the path by which to forward the packet to a remote network.

-It shields the upper layer protocol from being aware of the physical medium to be used in the communication.

Which two statements describe features of an IPv4 routing table on a router? (Choose two.)​ -Directly connected interfaces will have two route source codes in the routing table: C and S . -If there are two or more possible routes to the same destination, the route associated with the higher metric value is included in the routing table. -The netstat -r command can be used to display the routing table of a router.​ -The routing table lists the MAC addresses of each active interface. -It stores information about routes derived from the active router interfaces. -If a default static route is configured in the router, an entry will be included in the routing table with source code S .

-It stores information about routes derived from the active router interfaces. -If a default static route is configured in the router, an entry will be included in the routing table with source code S .

What service is provided by BOOTP? -Uses encryption to secure the exchange of text, graphic images, sound, and video on the web. -Allows for data transfers between a client and a file server. -Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network. -A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web.

-Legacy application that enables a diskless workstation to discover its own IP address and find a BOOTP server on the network.

What is an advantage for small organizations of adopting IMAP instead of POP? -POP only allows the client to store messages in a centralized way, while IMAP allows distributed storage. -Messages are kept in the mail servers until they are manually deleted from the email client. -When the user connects to a POP server, copies of the messages are kept in the mail server for a short time, but IMAP keeps them for a long time. -IMAP sends and retrieves email, but POP only retrieves email.

-Messages are kept in the mail servers until they are manually deleted from the email client.

Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.) -NAT adds authentication capability to IPv4. -NAT introduces problems for some applications that require end-to-end connectivity. -NAT will impact negatively on switch performance. -NAT provides a solution to slow down the IPv4 address depletion. -NAT improves packet handling. -NAT causes routing tables to include more information.

-NAT introduces problems for some applications that require end-to-end connectivity. -NAT provides a solution to slow down the IPv4 address depletion.

What is a benefit of using cloud computing in networking? -Technology is integrated into every-day appliances allowing them to interconnect with other devices, making them more 'smart' or automated. -Network capabilities are extended without requiring investment in new infrastructure, personnel, or software. -End users have the freedom to use personal tools to access information and communicate across a business network. -Home networking uses existing electrical wiring to connect devices to the network wherever there is an electrical outlet, saving the cost of installing data cables.

-Network capabilities are extended without requiring investment in new infrastructure, personnel, or software.

Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC2. In this scenario, what will happen next? -SW1 will send an ARP reply with the SW1 Fa0/1 MAC address.​ -SW1 will send an ARP reply with the PC2 MAC address.​ -PC2 will send an ARP reply with the PC2 MAC address. -RT1 will send an ARP reply with the RT1 Fa0/0 MAC address.​ -RT1 will send an ARP reply with the PC2 MAC address.​

-PC2 will send an ARP reply with the PC2 MAC address.

What service is provided by POP3? -Retrieves email from the server by downloading the email to the local mail application of the client. -An application that allows real-time chatting among remote users. -Allows remote access to network devices and servers. -Uses encryption to provide secure remote access to network devices and servers.

-Retrieves email from the server by downloading the email to the local mail application of the client.

Two pings were issued from a host on a local network. The first ping was issued to the IP address of the default gateway of the host and it failed. The second ping was issued to the IP address of a host outside the local network and it was successful. What is a possible cause for the failed ping? -The default gateway is not operational. -The default gateway device is configured with the wrong IP address. -Security rules are applied to the default gateway device, preventing it from processing ping requests. -The TCP/IP stack on the default gateway is not working properly.

-Security rules are applied to the default gateway device, preventing it from processing ping requests.

What are two problems that can be caused by a large number of ARP request and reply messages? (Choose two.) -Switches become overloaded because they concentrate all the traffic from the attached subnets. -The ARP request is sent as a broadcast, and will flood the entire subnet. -The network may become overloaded because ARP reply messages have a very large payload due to the 48-bit MAC address and 32-bit IP address that they contain. -A large number of ARP request and reply messages may slow down the switching process, leading the switch to make many changes in its MAC table. -All ARP request messages must be processed by all nodes on the local network.

-The ARP request is sent as a broadcast, and will flood the entire subnet. -All ARP request messages must be processed by all nodes on the local network.

Which two statements are correct in a comparison of IPv4 and IPv6 packet headers? (Choose two.) -The Source Address field name from IPv4 is kept in IPv6. -The Version field from IPv4 is not kept in IPv6. -The Destination Address field is new in IPv6. -The Header Checksum field name from IPv4 is kept in IPv6. -The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.

-The Source Address field name from IPv4 is kept in IPv6. -The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.

What will happen if the default gateway address is incorrectly configured on a host? -The host cannot communicate with other hosts in the local network. -The host cannot communicate with hosts in other networks. -A ping from the host to 127.0.0.1 would not be successful. -The host will have to use ARP to determine the correct address of the default gateway. -The switch will not forward packets initiated by the host.

-The host cannot communicate with hosts in other networks.

Data is being sent from a source PC to a destination server. Which three statements correctly describe the function of TCP or UDP in this situation? (Choose three.) -The source port field identifies the running application or service that will handle data returning to the PC. -The TCP process running on the PC randomly selects the destination port when establishing a session with the server. -UDP segments are encapsulated within IP packets for transport across the network. -The UDP destination port number identifies the application or service on the server which will handle the data. -TCP is the preferred protocol when a function requires lower network overhead. -The TCP source port number identifies the sending host on the network.

-The source port field identifies the running application or service that will handle data returning to the PC. -UDP segments are encapsulated within IP packets for transport across the network. -The UDP destination port number identifies the application or service on the server which will handle the data.

The global configuration command ip default-gateway 172.16.100.1 is applied to a switch. What is the effect of this command? -The switch can communicate with other hosts on the 172.16.100.0 network. -The switch can be remotely managed from a host on another network. -The switch is limited to sending and receiving frames to and from the gateway 172.16.100.1. -The switch will have a management interface with the address 172.16.100.1.

-The switch can be remotely managed from a host on another network.

Refer to the exhibit. What three facts can be determined from the viewable output of the show ip interface brief command? (Choose three.) -Two physical interfaces have been configured. -The switch can be remotely managed. -One device is attached to a physical interface. -Passwords have been configured on the switch. -Two devices are attached to the switch. -The default SVI has been configured.

-The switch can be remotely managed. -One device is attached to a physical interface. -The default SVI has been configured.

Refer to the exhibit. What is wrong with the displayed termination? -The woven copper braid should not have been removed. -The wrong type of connector is being used. -The untwisted length of each wire is too long. -The wires are too thick for the connector that is used.

-The untwisted length of each wire is too long.

Which type of security threat would be responsible if a spreadsheet add-on disables the local software firewall? -brute-force attack -Trojan horse -DoS -buffer overflow

-Trojan horse

What are the two most effective ways to defend against malware? (Choose two.) -Implement a VPN. -Implement network firewalls. -Implement RAID. -Implement strong passwords. -Update the operating system and other application software. -Install and update antivirus software.

-Update the operating system and other application software. -Install and update antivirus software.

What characteristic describes an IPS? -a tunneling protocol that provides remote users with secure access into the network of an organization -a network device that filters access and traffic coming into a network -software that identifies fast-spreading threats -software on a router that filters traffic based on IP addresses or applications

-a network device that filters access and traffic coming into a network

What characteristic describes a VPN? -software on a router that filters traffic based on IP addresses or applications -software that identifies fast-spreading threats -a tunneling protocol that provides remote users with secure access into the network of an organization -a network device that filters access and traffic coming into a network

-a tunneling protocol that provides remote users with secure access into the network of an organization

What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.) -error detection -frame delimiting -accessing the media -data encapsulation -logical addressing

-accessing the media -data encapsulation

Match each description with the corresponding TCP mechanism.

-acknowledgement (received by a sender before transmitting more segments in a session) -retransmission (method of managing segments of data loss) -sequence numbers (used to identify missing segments of data) -window size (# of bytes a destination device can accept and process at one time)

Match each type of frame field to its function. -addressing -error detection -type -frame start

-addressing (This field helps to direct the frame to its destination) -error detection (This field checks if the frame has been damaged...) -type (This field is used by the LLC to identify the L3 protocol) -frame start (This field identifies the beginning of a frame)

An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet?​ -all IPv6 enabled devices on the local link​ -all IPv6 DHCP servers​ -all IPv6 enabled devices across the network​ -all IPv6 configured routers on the local link​

-all IPv6 configured routers on the local link​

What characteristic describes antispyware? -applications that protect end devices from becoming infected with malicious software -a network device that filters access and traffic coming into a network -software on a router that filters traffic based on IP addresses or applications -a tunneling protocol that provides remote users with secure access into the network of an organization

-applications that protect end devices from becoming infected with malicious software

What characteristic describes antivirus software? -applications that protect end devices from becoming infected with malicious software -a network device that filters access and traffic coming into a network -a tunneling protocol that provides remote users with secure access into the network of an organization -software on a router that filters traffic based on IP addresses or applications

-applications that protect end devices from becoming infected with malicious software

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -applies delimiting of Ethernet frame fields to synchronize communication between nodes -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame -adds Ethernet control information to network protocol data -implements trailer with frame check sequence for error detection -handles communication between upper layer networking software and Ethernet NIC hardware

-applies delimiting of Ethernet frame fields to synchronize communication between nodes -implements trailer with frame check sequence for error detection

What are three commonly followed standards for constructing and installing cabling? (Choose three.) -cost per meter (foot) -cable lengths -connector color -pinouts -connector types -tensile strength of plastic insulator

-cable lengths -connector color -pinouts

What are two functions that are provided by the network layer? (Choose two.) -directing data packets to destination hosts on other networks -placing data on the network medium -carrying data between processes that are running on source and destination hosts -providing dedicated end-to-end connections -providing end devices with a unique network identifier

-directing data packets to destination hosts on other networks -providing end devices with a unique network identifier

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -enables IPv4 and IPv6 to utilize the same physical medium -adds Ethernet control information to network protocol data -applies source and destination MAC addresses to Ethernet frame -responsible for the internal structure of Ethernet frame -implements trailer with frame check sequence for error detection

-enables IPv4 and IPv6 to utilize the same physical medium -adds Ethernet control information to network protocol data

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -enables IPv4 and IPv6 to utilize the same physical medium -applies source and destination MAC addresses to Ethernet frame -integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper -handles communication between upper layer networking software and Ethernet NIC hardware -responsible for internal structure of Ethernet frame

-enables IPv4 and IPv6 to utilize the same physical medium -handles communication between upper layer networking software and Ethernet NIC hardware

Which frame field is created by a source node and used by a destination node to ensure that a transmitted data signal has not been altered by interference, distortion, or signal loss? -User Datagram Protocol field -transport layer error check field -flow control field -frame check sequence field -error correction process field

-frame check sequence field

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -responsible for internal structure of the Ethernet frame -applies source and destination MAC addresses to Ethernet frame -handles communication between upper layer networking software and Ethernet NIC hardware -adds Ethernet control information to network protocol data -implements trailer with frame check sequence for error detection

-handles communication between upper layer networking software and Ethernet NIC hardware -adds Ethernet control information to network protocol data

Match the type of threat with the cause. -hardware threats -environmental threats -electrical threats -maintenance threats

-hardware threats (physical damage to..) -environmental threats (temp extremes...) -electrical threats (voltage spikes...) -maintenance threats (poor handling of key electrical...)

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -handles communication between upper layer networking software and Ethernet NIC hardware -implements trailer with frame check sequence for error detection -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame -implements a process to delimit fields within an Ethernet 2 frame -adds Ethernet control information to network protocol data

-implements trailer with frame check sequence for error detection -implements a process to delimit fields within an Ethernet 2 frame

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit -Ethernet over copper -enables IPv4 and IPv6 to utilize the same physical medium -handles communication between upper layer networking software and Ethernet NIC hardware -adds Ethernet control information to network protocol data -implements CSMA/CD over legacy shared half-duplex media

-integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit -Ethernet over copper -implements CSMA/CD over legacy shared half-duplex media

A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.) -extensive cabling -mobility options -packet collision -interference -security -coverage area

-interference -security -coverage area

What two ICMPv6 message types must be permitted through IPv6 access control lists to allow resolution of Layer 3 addresses to Layer 2 MAC addresses? (Choose two.) -neighbor solicitations -echo requests -neighbor advertisements -echo replies -router solicitations -router advertisements

-neighbor solicitations -neighbor advertisements

Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.) -data link -network -physical -session -transport

-network -transport

A technician can ping the IP address of the web server of a remote company but cannot successfully ping the URL address of the same web server. Which software utility can the technician use to diagnose the problem? -tracert -ipconfig -netstat -nslookup

-nslookup

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper -places information in the Ethernet frame that identifies which network layer --protocol is being encapsulated by the frame -implements CSMA/CD over legacy shared half-duplex media -adds Ethernet control information to network protocol data -applies source and destination MAC addresses to Ethernet frame

-places information in the Ethernet frame that identifies which network layer --protocol is being encapsulated by the frame -adds Ethernet control information to network protocol data

What are two characteristics shared by TCP and UDP? (Choose two.) -default window size -connectionless communication -port numbering -3-way handshake -ability to to carry digitized voice -use of checksum

-port numbering -use of checksum

Match the firewall function to the type of threat protection it provides to the network. (Not all options are used.) -prevents access by port number -prevents access based on IP or MAC address -prevents unsolicited incoming sessions -prevents access to websites

-prevents access by port number (application filtering) -prevents access based on IP or MAC address (packet filtering) -prevents unsolicited incoming sessions (stateful packet inspection) -prevents access to websites (URL filtering)

What is a function of the data link layer? -provides the formatting of data -provides end-to-end delivery of data between hosts -provides delivery of data between two applications -provides for the exchange of frames over a common local media

-provides for the exchange of frames over a common local media

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame -adds Ethernet control information to network protocol data -responsible for internal structure of Ethernet frame -enables IPv4 and IPv6 to utilize the same physical medium -implements trailer with frame check sequence for error detection

-responsible for internal structure of Ethernet frame -implements trailer with frame check sequence for error detection

What characteristic describes adware? -a network device that filters access and traffic coming into a network -software that is installed on a user device and collects information about the user -the use of stolen credentials to access private data -an attack that slows or crashes a device or network service

-software that is installed on a user device and collects information about the user

What characteristic describes spyware? -a network device that filters access and traffic coming into a network -software that is installed on a user device and collects information about the user -an attack that slows or crashes a device or network service -the use of stolen credentials to access private data

-software that is installed on a user device and collects information about the user

When a switch configuration includes a user-defined error threshold on a per-port basis, to which switching method will the switch revert when the error threshold is reached? -cut-through -store-and-forward -fast-forward -fragment-free

-store-and-forward

Which switching method drops frames that fail the FCS check? -store-and-forward switching -borderless switching -ingress port buffering -cut-through switching

-store-and-forward switching

What are the three parts of an IPv6 global unicast address? (Choose three.) -subnet ID -subnet mask -broadcast address -global routing prefix -interface ID

-subnet ID -global routing prefix -interface ID

During the process of forwarding traffic, what will the router do immediately after matching the destination IP address to a network on a directly connected routing table entry? -analyze the destination IP address -switch the packet to the directly connected interface -look up the next-hop address for the packet -discard the traffic after consulting the route table

-switch the packet to the directly connected interface

A user sends an HTTP request to a web server on a remote network. During encapsulation for this request, what information is added to the address field of a frame to indicate the destination? -the network domain of the destination host -the IP address of the default gateway -the MAC address of the destination host -the MAC address of the default gateway

-the MAC address of the default gateway

Which information does the show startup-config command display? -the IOS image copied into RAM -the bootstrap program in the ROM -the contents of the current running configuration file in the RAM -the contents of the saved configuration file in the NVRAM

-the contents of the saved configuration file in the NVRAM

Users are reporting longer delays in authentication and in accessing network resources during certain time periods of the week. What kind of information should network engineers check to find out if this situation is part of a normal network behavior? -syslog records and messages -the network performance baseline -debug output and packet captures -network configuration files

-the network performance baseline

What characteristic describes identity theft? -the use of stolen credentials to access private data -software on a router that filters traffic based on IP addresses or applications -software that identifies fast-spreading threats -a tunneling protocol that provides remote users with secure access into the network of an organization

-the use of stolen credentials to access private data

Why would a Layer 2 switch need an IP address? -to enable the switch to send broadcast frames to attached PCs -to enable the switch to function as a default gateway -to enable the switch to be managed remotely -to enable the switch to receive frames from attached PCs

-to enable the switch to be managed remotely

What is the purpose of the TCP sliding window? -to ensure that segments arrive in order at the destination -to end communication when data transmission is complete -to inform a source to retransmit data from a specific point forward -to request that a source decrease the rate at which it transmits data

-to request that a source decrease the rate at which it transmits data

What technique is used with UTP cable to help protect against signal interference from crosstalk? -wrapping a foil shield around the wire pairs -twisting the wires together into pairs -terminating the cable with special ---grounded connectors -encasing the cables within a flexible plastic sheath

-twisting the wires together into pairs

What two security solutions are most likely to be used only in a corporate environment? (Choose two.) -antispyware -virtual private networks -intrusion prevention systems -strong passwords -antivirus software

-virtual private networks -intrusion prevention systems

A user is executing a tracert to a remote device. At what point would a router, which is in the path to the destination device, stop forwarding the packet? -when the router receives an ICMP Time Exceeded message -when the RTT value reaches zero -when the host responds with an ICMP Echo Reply message -when the value in the TTL field reaches zero -when the values of both the Echo Request and Echo Reply messages reach zero

-when the value in the TTL field reaches zero

Refer to the exhibit. Which two network addresses can be assigned to the network containing 10 hosts? Your answers should waste the fewest addresses, not reuse addresses that are already assigned, and stay within the 10.18.10.0/24 range of addresses. (Choose two.) 10.18.10.200/28 10.18.10.208/28 10.18.10.240/27 10.18.10.200/27 10.18.10.224/27 10.18.10.224/28

10.18.10.208/28 10.18.10.224/28

Match each description with an appropriate IP address.

127.0.01 (loopback address) 240.2.6.255 (an experimental address) 198.133.219.2 (a public address) 169.254.1.5 (a link-local address)

What would be the interface ID of an IPv6 enabled interface with a MAC address of 1C-6F-65-C2-BD-F8 when the interface ID is generated by using the EUI-64 process? 0C6F:65FF:FEC2:BDF8 1E6F:65FF:FEC2:BDF8 C16F:65FF:FEC2:BDF8 106F:65FF:FEC2:BDF8

1E6F:65FF:FEC2:BDF8

Refer to the exhibit. A network engineer has been given the network address of 192.168.99.0 and a subnet mask of 255.255.255.192 to subnet across the four networks shown. How many total host addresses are unused across all four subnets? 88 200 72 224 158

200

What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64? 2001:DA48::/64​ 2001:DA48:FC5::A4:/64​ 2001:DA48:FC5:A4::/64​ 2001::/64

2001:DA48:FC5:A4::/64​

A network administrator is adding a new LAN to a branch office. The new LAN must support 200 connected devices. What is the smallest network mask that the network administrator can use for the new network? 255.255.255.240 255.255.255.0 255.255.255.248 255.255.255.224

255.255.255.0

A network administrator is adding a new LAN to a branch office. The new LAN must support 90 connected devices. What is the smallest network mask that the network administrator can use for the new network? 255.255.255.128 255.255.255.240 255.255.255.248 255.255.255.224

255.255.255.128

Refer to the exhibit. A company uses the address block of 128.107.0.0/16 for its network. What subnet mask would provide the maximum number of equal size subnets while providing enough host addresses for each subnet in the exhibit? 255.255.255.192 255.255.255.0 255.255.255.128 255.255.255.240 255.255.255.224

255.255.255.128

What subnet mask is needed if an IPv4 network has 40 devices that need IP addresses and address space is not to be wasted? 255.255.255.0 255.255.255.240 255.255.255.128 255.255.255.192 255.255.255.224

255.255.255.192

A network administrator wants to have the same network mask for all networks at a particular small site. The site has the following networks and number of devices: IP phones - 22 addresses, PCs - 20 addresses needed, Printers - 2 addresses needed, Scanners - 2 addresses needed The network administrator has deemed that 192.168.10.0/24 is to be the network used at this site. Which single subnet mask would make the most efficient use of the available addresses to use for the four subnetworks? 255.255.255.192 255.255.255.252 255.255.255.240 255.255.255.248 255.255.255.0 255.255.255.224

255.255.255.224

A network administrator is adding a new LAN to a branch office. The new LAN must support 10 connected devices. What is the smallest network mask that the network administrator can use for the new network? 255.255.255.192 255.255.255.248 255.255.255.224 255.255.255.240

255.255.255.240

A network administrator wants to have the same subnet mask for three subnetworks at a small site. The site has the following networks and numbers of devices: Subnetwork A: IP phones - 10 addresses Subnetwork B: PCs - 8 addresses Subnetwork C: Printers - 2 addresses What single subnet mask would be appropriate to use for the three subnetworks? 255.255.255.0 255.255.255.240 255.255.255.248 255.255.255.252

255.255.255.240

A network administrator is adding a new LAN to a branch office. The new LAN must support 4 connected devices. What is the smallest network mask that the network administrator can use for the new network? 255.255.255.248 255.255.255.0 255.255.255.128 255.255.255.192

255.255.255.248

An organization is assigned an IPv6 address block of 2001:db8:0:ca00::/56. How many subnets can be created without using bits in the interface ID space? 256 512 1024 4096

256

Refer to the exhibit. If host A sends an IP packet to host B, what will the destination address be in the frame when it leaves host A? DD:DD:DD:DD:DD:DD 172.168.10.99 CC:CC:CC:CC:CC:CC 172.168.10.65 BB:BB:BB:BB:BB:BB AA:AA:AA:AA:AA:AA

BB:BB:BB:BB:BB:BB

A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting? FTP DHCP Telnet SSH

DHCP

Which range of link-local addresses can be assigned to an IPv6-enabled interface? FEC0::/10 FDEE::/7 FE80::/10 FF00::/8

FE80::/10

A client packet is received by a server. The packet has a destination port number of 21. What service is the client requesting? FTP LDAP SLP SNMP

FTP

A client packet is received by a server. The packet has a destination port number of 80. What service is the client requesting? DHCP SMTP DNS HTTP

HTTP

A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting? IMAP FTP SSH Telnet

IMAP

Match the characteristic to the category.

IP ADDRESS: -contained in the L3 header -separated into a network portion and a unique identifier 32 or 128 bits MAC ADDRESS: -contained in the L2 header -separated into OUI and a unique identifier -48 bits

Match the header field with the appropriate layer of the OSI model.

L2: -802.2 header -FCS -Destination MAC Address L3: -TTL -Source IP Address L4: -Acknowledgement Number -Destination Port Number

What are two ICMPv6 messages that are not present in ICMP for IPv4? (Choose two.) Neighbor Solicitation Destination Unreachable Host Confirmation Time Exceeded Router Advertisement Route Redirection

Neighbor Solicitation Router Advertisement

Match a statement to the related network model. (peer-to-peer network / application) -requires a specific user interface -no dedicated server is required -a background service is required -client and server roles are on a per request basis

PEER-TO-PEER NETWORK -client and server roles are on a per request basis -no dedicated server is required PEER-TO-PEER APPLICATION -requires a specific user interface -a background service is required

Match each item to the type of topology diagram on which it is typically identified.

PHYSICAL TOPOLOGY DIAGRAM: -location of a desktop PC in a classroom -path of cables that connect rooms to wiring closets LOGICAL TOPOLOGY DIAGRAM: IP address of a server

A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting? SSH SMB/CIFS HTTPS SLP

SSH

A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a switch to manage it. Which access method should be chosen? Telnet AUX SSH Console

SSH

A client packet is received by a server. The packet has a destination port number of 69. What service is the client requesting? DNS DHCP SMTP TFTP

TFTP

Which wireless technology has low-power and low-data rate requirements making it popular in IoT environments? Bluetooth Zigbee WiMAX Wi-Fi

Zigbee

Match each description to its corresponding term.

message encoding -> the process of converting information from one format into another acceptable for transmission message encapsulation -> the process of placing one message format inside another message format message sizing -> the process of breaking up a long message into individual pieces before being sent over the network

A group of Windows PCs in a new subnet has been added to an Ethernet network. When testing the connectivity, a technician finds that these PCs can access local network resources but not the Internet resources. To troubleshoot the problem, the technician wants to initially confirm the IP address and DNS configurations on the PCs, and also verify connectivity to the local router. Which three Windows CLI commands and utilities will provide the necessary information? (Choose three.) netsh interface ipv6 show neighbor arp -a tracert ping ipconfig nslookup telnet

ping ipconfig nslookup

A disgruntled employee is using some free wireless networking tools to determine information about the enterprise wireless networks. This person is planning on using this information to hack the wireless network. What type of attack is this? DoS access reconnaissance Trojan horse

reconnaissance

Which two commands can be used on a Windows host to display the routing table? (Choose two.) netstat -s route print show ip route netstat -r tracert

route print netstat -r

A user is complaining that an external web page is taking longer than normal to load.The web page does eventually load on the user machine. Which tool should the technician use with administrator privileges in order to locate where the issue is in the network? ping nslookup tracert ipconfig /displaydns

tracert

What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.) -message size -message encoding -connector specifications -media selection -delivery options -end-device installation

-message size -message encoding -delivery options

To which TCP port group does the port 414 belong? well-known private or dynamic public registered

well-known

Which statement describes the characteristics of packet-filtering and stateful firewalls as they relate to the OSI model? -A packet-filtering firewall uses session layer information to track the state of a connection, whereas a stateful firewall uses application layer information to track the state of a connection. -Both stateful and packet-filtering firewalls can filter at the application layer. -A packet-filtering firewall typically can filter up to the transport layer, whereas a stateful firewall can filter up to the session layer. -A stateful firewall can filter application layer information, whereas a packet-filtering firewall cannot filter beyond the network layer.

-A packet-filtering firewall typically can filter up to the transport layer, whereas a stateful firewall can filter up to the session layer.

Which scenario describes a function provided by the transport layer? -A student is using a classroom VoIP phone to call home. The unique identifier burned into the phone is a transport layer address used to contact another network device on the same network. -A student is playing a short web-based movie with sound. The movie and sound are encoded within the transport layer header. -A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window. -A corporate worker is accessing a web server located on a corporate network. The transport layer formats the screen so the web page appears properly no matter what device is being used to view the web site.

-A student has two web browser windows open in order to access two web sites. The transport layer ensures the correct web page is delivered to the correct browser window.

A small advertising company has a web server that provides critical business service. The company connects to the Internet through a leased line service to an ISP. Which approach best provides cost effective redundancy for the Internet connection? -Add a second NIC to the web server. -Add a connection to the Internet via a DSL line to another ISP. -Add another web server to prepare failover support. -Add multiple connections between the switches and the edge router.

-Add a connection to the Internet via a DSL line to another ISP.

What service is provided by SMTP? -Allows clients to send email to a mail server and the servers to send email to other servers. -Allows remote access to network devices and servers. -Uses encryption to provide secure remote access to network devices and servers. -An application that allows real-time chatting among remote users.

-Allows clients to send email to a mail server and the servers to send email to other servers.

What service is provided by Internet Messenger? -An application that allows real-time chatting among remote users. -Allows remote access to network devices and servers. -Resolves domain names, such as cisco.com, into IP addresses. -Uses encryption to provide secure remote access to network devices and servers.

-An application that allows real-time chatting among remote users.

Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.) -Capture traffic on the weekends when most employees are off work. -Capture traffic during peak utilization times to get a good representation of the different traffic types. -Only capture traffic in the areas of the network that receive most of the traffic such as the data center. -Perform the capture on different network segments. -Only capture WAN traffic because traffic to the web is responsible for the largest amount of traffic on a network.

-Capture traffic during peak utilization times to get a good representation of the different traffic types. -Perform the capture on different network segments.

Which two statements describe the characteristics of fiber-optic cabling? (Choose two.) -Fiber-optic cabling does not conduct electricity. -Multimode fiber-optic cabling carries signals from multiple sending devices. -Fiber-optic cabling is primarily used as backbone cabling. -Fiber-optic cabling uses LEDs for single-mode cab​les and laser technology for multimode cables. -Fiber-optic cabling has high signal loss.

-Fiber-optic cabling does not conduct electricity. -Fiber-optic cabling is primarily used as backbone cabling.

Which statement describes network security? -It supports growth over time in accordance with approved network design procedures. -It synchronizes traffic flows using timestamps. -It ensures sensitive corporate data is available for authorized users. -It prioritizes data flows in order to give priority to delay-sensitive traffic.

-It ensures sensitive corporate data is available for authorized users.

A host is trying to send a packet to a device on a remote LAN segment, but there are currently no mappings in its ARP cache. How will the device obtain a destination MAC address? -It will send the frame and use its own MAC address as the destination. -It will send an ARP request for the MAC address of the destination device. -It will send the frame with a broadcast MAC address. -It will send a request to the DNS server for the destination MAC address. -It will send an ARP request for the MAC address of the default gateway.

-It will send an ARP request for the MAC address of the default gateway.

Refer to the exhibit. Match the network with the correct IP address and prefix that will satisfy the usable host addressing requirements for each network. -Network A -Network B -Network C -Network D

-Network A (192.168.0.128/25) -Network B (192.168.0.0/26) -Network C (192.168.0.96/27) -Network D (192.168.0.80/30)

Two network engineers are discussing the methods used to forward frames through a switch. What is an important concept related to the cut-through method of switching? -The fragment-free switching offers the lowest level of latency. -Fast-forward switching can be viewed as a compromise between store-and-forward switching and fragment-free switching. -Fragment-free switching is the typical cut-through method of switching. -Packets can be relayed with errors when fast-forward switching is used.

-Packets can be relayed with errors when fast-forward switching is used.

A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.) -crosstalk -extended length of cabling -RFI​ -EMI -signal attenuation

-RFI​ -EMI

Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC3. In this scenario, what will happen next? -SW1 will send an ARP reply with its Fa0/1 MAC address. -RT1 will send an ARP reply with its own Fa0/0 MAC address. -RT1 will forward the ARP request to PC3. -RT1 will send an ARP reply with the PC3 MAC address. -RT1 will send an ARP reply with its own Fa0/1 MAC address.

-RT1 will send an ARP reply with its own Fa0/0 MAC address.

What service is provided by DNS? -Resolves domain names, such as cisco.com, into IP addresses. -A basic set of rules for exchanging text, graphic images, sound, video, and other multimedia files on the web. -Allows for data transfers between a client and a file server. -Uses encryption to secure the exchange of text, graphic images, sound, and video on the web.

-Resolves domain names, such as cisco.com, into IP addresses.

What service is provided by POP3? -Retrieves email from the server by downloading the email to the local mail application of the client. -An application that allows real-time chatting among remote users. -Allows remote access to network devices and servers. -Uses encryption to provide secure remote access to network devices and servers.

-Retrieves email from the server by downloading the email to the local mail application of the client.

What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?​ -All router interfaces will be automatically activated. -The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages. -Each router interface will generate an IPv6 link-local address.​ -It statically creates a global unicast address on this router.​

-The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.

An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem? -The entire command, configure terminal, must be used. -The administrator is already in global configuration mode. -The administrator must first enter privileged EXEC mode before issuing the command. -The administrator must connect via the console port to access global configuration mode.

-The administrator must first enter privileged EXEC mode before issuing the command.

Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem? -The entire command, configure terminal, must be used. -The administrator is already in global configuration mode. -The administrator must first enter privileged EXEC mode before issuing the command. -The administrator must connect via the console port to access global configuration mode.

-The administrator must first enter privileged EXEC mode before issuing the command.

A router boots and enters setup mode. What is the reason for this? -The IOS image is corrupt. -Cisco IOS is missing from flash memory. -The configuration file is missing from NVRAM. -The POST process has detected hardware failure.

-The configuration file is missing from NVRAM.

A technician with a PC is using multiple applications while connected to the Internet. How is the PC able to keep track of the data flow between multiple application sessions and have each application receive the correct packet flows? -The data flow is being tracked based on the destination MAC address of the technician PC. -The data flow is being tracked based on the source port number that is used by each application. -The data flow is being tracked based on the source IP address that is used by the PC of the technician. -The data flow is being tracked based on the destination IP address that is used by the PC of the technician.

-The data flow is being tracked based on the source port number that is used by each application.

What happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field? -The switch notifies the source of the bad frame. -The switch places the new CRC value in the FCS field and forwards the frame. -The switch drops the frame. -The switch floods the frame to all ports except the port through which the frame arrived to notify the hosts of the error.

-The switch drops the frame.

Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.) -This host does not have a default gateway configured. -There are 4 hops between this device and the device at 192.168.100.1. -There is connectivity between this device and the device at 192.168.100.1. -The connectivity between these two hosts allows for videoconferencing calls. -The average transmission time between the two hosts is 2 milliseconds.

-There are 4 hops between this device and the device at 192.168.100.1. -There is connectivity between this device and the device at 192.168.100.1.

What are two ways to protect a computer from malware? (Choose two.) -Empty the browser cache. -Use antivirus software. -Delete unused software. -Keep software up to date. -Defragment the hard disk.

-Use antivirus software. -Keep software up to date.

A network administrator is issuing the login block-for 180 attempts 2 within 30 command on a router. Which threat is the network administrator trying to prevent? -a user who is trying to guess a password to access the router -a worm that is attempting to access another part of the network -an unidentified individual who is trying to access the network equipment room -a device that is trying to inspect the traffic on a link

-a user who is trying to guess a password to access the router

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -adds Ethernet control information to network protocol data -responsible for internal structure of Ethernet frame -implements trailer with frame check sequence for error detection -enables IPv4 and IPv6 to utilize the same physical medium -applies source and destination MAC addresses to Ethernet frame

-adds Ethernet control information to network protocol data -enables IPv4 and IPv6 to utilize the same physical medium

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -implements CSMA/CD over legacy shared half-duplex media -adds Ethernet control information to network protocol data -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame -applies source and destination MAC addresses to Ethernet frame -integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper

-adds Ethernet control information to network protocol data -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

What characteristic describes a DoS attack? -the use of stolen credentials to access private data -a network device that filters access and traffic coming into a network -software that is installed on a user device and collects information about the user -an attack that slows or crashes a device or network service

-an attack that slows or crashes a device or network service

Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used? -only application and Internet layers -only Internet and network access layers -only application, Internet, and network access layers -application, transport, Internet, and network access layers -only application, transport, network, data link, and physical layers -application, session, transport, network, data link, and physical layers

-application, transport, Internet, and network access layers

Three bank employees are using the corporate network. The first employee uses a web browser to view a company web page in order to read some announcements. The second employee accesses the corporate database to perform some financial transactions. The third employee participates in an important live audio conference with other corporate managers in branch offices. If QoS is implemented on this network, what will be the priorities from highest to lowest of the different data types? -financial transactions, web page, audio conference -audio conference, financial transactions, web page -financial transactions, audio conference, web page -audio conference, web page, financial transactions

-audio conference, financial transactions, web page

A company has a file server that shares a folder named Public. The network security policy specifies that the Public folder is assigned Read-Only rights to anyone who can log into the server while the Edit rights are assigned only to the network admin group. Which component is addressed in the AAA network service framework? -automation -accounting -authentication -authorization

-authorization

What does a router do when it receives a Layer 2 frame over the network medium? -re-encapsulates the packet into a new frame -forwards the new frame appropriate to the medium of that segment of the physical network -determines the best path -de-encapsulates the frame

-de-encapsulates the frame

What are two characteristics of IP? (Choose two.) -does not require a dedicated end-to-end connection -operates independently of the network media -retransmits packets if errors occur -re-assembles out of order packets into the correct order at the receiver end -guarantees delivery of packets

-does not require a dedicated end-to-end connection -operates independently of the network media

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -responsible for internal structure of Ethernet frame -applies source and destination MAC addresses to Ethernet frame -integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper -enables IPv4 and IPv6 to utilize the same physical medium -handles communication between upper layer networking software and Ethernet NIC hardware

-enables IPv4 and IPv6 to utilize the same physical medium -handles communication between upper layer networking software and Ethernet NIC hardware

Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) -implements CSMA/CD over legacy shared half-duplex media -enables IPv4 and IPv6 to utilize the same physical medium -integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper -implements a process to delimit fields within an Ethernet 2 frame -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

-enables IPv4 and IPv6 to utilize the same physical medium -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame

Match the descriptions to the terms. -enables the user to interact with the operating system by pointing and clicking -the part of the operating system that interfaces with applications and the user -the part of the OS that interacts directly with the device hardware -users interact with the operating system by typing commands

-enables the user to interact with the operating system by pointing and clicking (GUI) -the part of the operating system that interfaces with applications and the user (shell) -the part of the OS that interacts directly with the device hardware (kernel) -users interact with the operating system by typing commands (CLI)

Match the description to the IPv6 addressing component. -global routing prefix -subnet ID -interface ID

-global routing prefix (This network portion of the address is assigned by the provider) -subnet ID (This part of the address is used by an organization to identify subnets) -interface ID (This part of the address is the equivalent to the host portion of an IPV4 address)

What is a user trying to determine when issuing a ping 10.1.1.1 command on a PC? -if the TCP/IP stack is functioning on the PC without putting traffic on the wire -if there is connectivity with the destination device -the path that traffic will take to reach the destination -what type of device is at the destination

-if there is connectivity with the destination device

What are two common causes of signal degradation when using UTP cabling? (Choose two.) -improper termination -low-quality shielding in cable -installing cables in conduit -low-quality cable or connectors -loss of light over long distances

-improper termination -low-quality cable or connectors

Match the command with the device mode at which the command is entered. -login -service password-encryption -ip address 192.168.4.4 255.255.255.0 -copy running-config startup-config -enable

-login [R1(config-line)#] -service password-encryption [R1(config)#] -ip address 192.168.4.4 255.255.255.0 [R1(config-if)#] -copy running-config startup-config [R1#] -enable [R1>]

What does the term "attenuation" mean in data communication? -strengthening of a signal by a networking device -leakage of signals from one cable pair to another -time for a signal to reach its destination -loss of signal strength as distance increases

-loss of signal strength as distance increases

What characteristic describes a Trojan horse? -malicious software or code running on an end device -an attack that slows or crashes a device or network service -the use of stolen credentials to access private data -a network device that filters access and traffic coming into a network

-malicious software or code running on an end device

What characteristic describes a virus? -a network device that filters access and traffic coming into a network -the use of stolen credentials to access private data -an attack that slows or crashes a device or network service -malicious software or code running on an end device

-malicious software or code running on an end device

Which command is used to manually query a DNS server to resolve a specific host name? -tracert -ipconfig /displaydns -nslookup -net

-nslookup

Which two commands could be used to check if DNS name resolution is working properly on a Windows PC? (Choose two.) -nslookup cisco.com -ping cisco.com -ipconfig /flushdns -net cisco.com -nbtstat cisco.com

-nslookup cisco.com -ping cisco.com

Two students are working on a network design project. One student is doing the drawing, while the other student is writing the proposal. The drawing is finished and the student wants to share the folder that contains the drawing so that the other student can access the file and copy it to a USB drive. Which networking model is being used? -peer-to-peer -client-based -master-slave -point-to-point

-peer-to-peer

A wired laser printer is attached to a home computer. That printer has been shared so that other computers on the home network can also use the printer. What networking -model is in use? -client-based -master-slave -point-to-point -peer-to-peer (P2P)

-peer-to-peer (P2P)

Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.) -presentation -physical -network -data link -transport -application -session

-presentation -application -session

Which two ICMP messages are used by both IPv4 and IPv6 protocols? (Choose two.)​ -neighbor solicitation -router advertisement -router solicitation -protocol unreachable -route redirection

-protocol unreachable -route redirection

What are proprietary protocols? -protocols developed by private organizations to operate on any vendor hardware -protocols that can be freely used by any organization or vendor -protocols developed by organizations -who have control over their definition and operation -a collection of protocols known as the TCP/IP protocol suite

-protocols developed by organizations -who have control over their definition and operation

An employee of a large corporation remotely logs into the company using the appropriate username and password. The employee is attending an important video conference with a customer concerning a large sale. It is important for the video quality to be excellent during the meeting. The employee is unaware that after a successful login, the connection to the company ISP failed. The secondary connection, however, activated within seconds. The disruption was not noticed by the employee or other employees.What three network characteristics are described in this scenario? (Choose three.) -security -quality of service -scalability -powerline networking -integrity -fault tolerance

-security -quality of service -fault tolerance

Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model? -bits -frame -packet -segment

-segment

Only employees connected to IPv6 interfaces are having difficulty connecting to remote networks. The analyst wants to verify that IPv6 routing has been enabled. What is the best command to use to accomplish the task? -copy running-config startup-config -show interfaces -show ip nat translations -show running-config

-show running-config

What characteristic describes spyware? -software that is installed on a user device and collects information about the user -the use of stolen credentials to access private data -an attack that slows or crashes a device or network service -a network device that filters access and traffic coming into a network

-software that is installed on a user device and collects information about the user

A network technician types the command ping 127.0.0.1 at the command prompt on a computer. What is the technician trying to accomplish? -pinging a host computer that has the IP address 127.0.0.1 on the network -tracing the path to a host computer on -the network and the network has the IP address 127.0.0.1 -checking the IP address on the network card -testing the integrity of the TCP/IP stack on the local machine

-testing the integrity of the TCP/IP stack on the local machine

What does the value of the window size specify? -the amount of data that can be sent at one time -the amount of data that can be sent before an acknowledgment is required -the total number of bits received during this TCP session -a random number that is used in establishing a connection with the 3-way handshake

-the amount of data that can be sent before an acknowledgment is required

Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary? -the virtually unlimited availability of IPv6 addresses -the use of CSMA/CA -the use of full-duplex capable Layer 2 switches -the development of half-duplex switch operation -the use of Gigabit Ethernet speeds

-the use of full-duplex capable Layer 2 switches

Network information: * local router LAN interface: 172.19.29.254 / fe80:65ab:dcc1::10* local router WAN interface: 198.133.219.33 / 2001:db8:FACE:39::10* remote server: 192.135.250.103 What task might a user be trying to accomplish by using the ping 2001:db8:FACE:39::10 command? -verifying that there is connectivity within the local network -creating a network performance benchmark to a server on the company intranet -determining the path to reach the remote server -verifying that there is connectivity to the internet

-verifying that there is connectivity to the internet

Which two devices would be described as intermediary devices? (Choose two.) -wireless LAN controller -server -assembly line robots -IPS -gaming console -retail scanner

-wireless LAN controller -IPS

Refer to the exhibit. What is the maximum possible throughput between the PC and the server? 10 Mb/s 1000 Mb/s 128 kb/s 100 Mb/s

128 kb/s

Which subnet would include the address 192.168.1.96 as a usable host address? 192.168.1.64/26 192.168.1.32/27 192.168.1.32/28 192.168.1.64/29

192.168.1.64/26

A network administrator is adding a new LAN to a branch office. The new LAN must support 61 connected devices. What is the smallest network mask that the network administrator can use for the new network? 255.255.255.240 255.255.255.224 255.255.255.192 255.255.255.128

255.255.255.192

Given network 172.18.109.0, which subnet mask would be used if 6 host bits were available? 255.255.192.0 255.255.224.0 255.255.255.192 255.255.255.248 255.255.255.252

255.255.255.192

A network administrator is adding a new LAN to a branch office. The new LAN must support 25 connected devices. What is the smallest network mask that the network administrator can use for the new network? 255.255.255.128 255.255.255.192 255.255.255.224 255.255.255.240

255.255.255.224

What is a characteristic of a switch virtual interface (SVI)?​ -An SVI is created in software and requires a configured IP address and a subnet mask in order to provide remote access to the switch. -Although it is a virtual interface, it needs to have physical hardware on the device associated with it. -SVIs do not require the no shutdown command to become enabled. -SVIs come preconfigured on Cisco switches.

An SVI is created in software and requires a configured IP address and a subnet mask in order to provide remote access to the switch.

Why is NAT not needed in IPv6?​ -Because IPv6 has integrated security, there is no need to hide the IPv6 addresses of internal networks.​ -The problems that are induced by NAT applications are solved because the IPv6 header improves packet handling by intermediate routers.​ -The end-to-end connectivity problems that are caused by NAT are solved because the number of routes increases with the number of nodes that are connected to the Internet. -Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.​

Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large.​

Match the characteristic to the forwarding method (cut-through or store-and-forward) -always stores the entire frame -checks the CRC before forwarding -checks the frame length before forwarding -does not forward broadcasts -has low latency -may forward runt frames -begins forwarding when the destination address is received

CUT-THROUGH -always stores the entire frame -checks the CRC before forwarding -checks the frame length before forwarding STORE-&-FORWARD -has low latency -may forward runt frames -begins forwarding when the destination address is received

A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting? DNS NetBIOS (NetBT) POP3 IMAP

DNS

Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services? DNS email file web

DNS

The employees and residents of Ciscoville cannot access the Internet or any remote web-based services. IT workers quickly determine that the city firewall is being flooded with so much traffic that a breakdown of connectivity to the Internet is occurring. Which type of attack is being launched at Ciscoville? access Trojan horse reconnaissance DoS

DoS

Which destination address is used in an ARP request frame? 0.0.0.0 255.255.255.255 the physical address of the destination host FFFF.FFFF.FFFF AAAA.AAAA.AAAA

FFFF.FFFF.FFFF

Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.) TCP IP UDP POP DNS Ethernet

POP DNS

A client packet is received by a server. The packet has a destination port number of 110. What service is the client requesting? DNS DHCP SMTP POP3

POP3

Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1? R1: S0/0/0 R2: S0/0/1 R1: G0/0 R2: S0/0/0

R1: G0/0

A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting? SSH TFTP DHCP DNS

SSH

Match the description with the media. STP wireless optical fiber coaxial

STP - This type of copper media is used in industrial or similar environments where there is a lot of interference. coaxial - Traditionally used for television... optical fiber - This type of media is used for high transmission speed... wireless - This type of media provides the most mobility options.

Three devices are on three different subnets. Match the network address and the broadcast address with each subnet where these devices are located. (Not all options are used.) Device 1: IP address 192.168.10.77/28 on subnet 1 Device 2: IP address192.168.10.17/30 on subnet 2 Device 3: IP address 192.168.10.35/29 on subnet 3

Subnet 1 network number (192.168.10.64) Subnet 2 broadcast (192.168.10.19) Subnet 3 network number (192.168.10.32) subnet 1 broadcast address (192.168.10.79) Subnet 2 network number (192.168.10.16) Subnet 3 broadcast address (192.168.10.39)

Match the application protocols to the correct transport protocols (UDP or TCP) DHCP FTP HTTP SMTP TFTP

TCP: (1) FTP (2) HTTP (3) SMTP UDP: (1) DHCP (2) TFTP

If the default gateway is configured incorrectly on the host, what is the impact on communications? -There is no impact on communications. -The host is unable to communicate on the local network. The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks. -The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.

The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.

Which wireless technology has low-power and data rate requirements making it popular in home automation applications? ZigBee LoRaWAN 5G Wi-Fi

ZigBee

Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.) application network data link session presentation transport

application session presentation

What does the IP address 192.168.1.15/29 represent? subnetwork address unicast address multicast address broadcast address

broadcast address

Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or broadcast address? destination IPv4 address protocol TTL header checksum

destination IPv4 address

Which is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029? fe80:9ea:0:2200::fe0:290 fe80:9ea0::2020::bf:e0:9290 fe80::220:b3f:f0e0:29 fe80:9ea0::2020:0:bf:e0:9290

fe80::220:b3f:f0e0:29

A user issues the command netstat -r on a workstation. Which IPv6 address is one of the link-local addresses of the workstation? ::1/128 fe80::30d0:115:3f57:fe4c/128 fe80::/64 2001:0:9d38:6ab8:30d0:115:3f57:fe4c/128

fe80::30d0:115:3f57:fe4c/128

What command can be used on a Windows PC to see the IP configuration of that computer? show ip interface brief ping show interfaces ipconfig

ipconfig

What type of IPv6 address is represented by ::1/128? EUI-64 generated link-local global unicast unspecified loopback

loopback

What type of address is 198.133.219.162? link-local public loopback multicast

public

Refer to the exhibit. If PC1 is sending a packet to PC2 and routing has been configured between the two routers, what will R1 do with the Ethernet frame header attached by PC1? -nothing, because the router has a route to the destination network -open the header and use it to determine whether the data is to be sent out S0/0/0 -open the header and replace the destination MAC address with a new one -remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0

remove the Ethernet header and configure a new Layer 2 header before sending it out S0/0/0

What OSI physical layer term describes the measure of the transfer of bits across a medium over a given period of time? latency goodput throughput bandwidth

throughput