CCNA
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64? 2001:DA48::/64 2001::/64 2001:DA48:FC5:A4::/64 2001:DA48:FC5::A4:/64
2001:DA48:FC5:A4::/64
Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.) transport application network session data link presentation
application session presentation
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? 255.255.255.224 255.255.255.192 255.255.255.240 255.255.255.128
255.255.255.224
Match each description with an appropriate IP address. (Not all options are used.) 64.102.90.23 169.254.1.5 192.0.123 240.2.6.255 172.19.20.5 127.0.0.1 A private address A loopback address An experimental address A TEST-NET address A link-local address
64.102.90.23 169.254.1.5 A link-local address 192.0.123 A TEST-NET address 240.2.6.255 An experimental address 172.19.20.5 A private address 127.0.0.1 A loopback address
Which two statements describe how to assess traffic flow patterns and network traffic types using a protocol analyzer? (Choose two.) Capture traffic during peak utilization times to get a good representation of the different traffic types. 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. Only capture traffic in the areas of the network that receive most of the traffic such as the data center. 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. Perform the capture on different network segments.
What happens when the transport input ssh command is entered on the switch vty lines? The switch requires a username/password combination for remote access. The SSH client on the switch is enabled. 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.
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.) EMI signal attenuation crosstalk RFI extended length of cabling
EMI RFI
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. Power cycle the device. Exit privileged EXEC mode and press Enter. Exit global configuration mode. Reboot the device.
Exit privileged EXEC mode and press Enter.
Which range of link-local addresses can be assigned to an IPv6-enabled interface? FE80::/10 FDEE::/7 FF00::/8 FEC0::/10
FE80::/10
A client packet is received by a server. The packet has a destination port number of 143. What service is the client requesting? Telnet SSH IMAP FTP
IMAP
What two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.) speed and duplex settings MAC addresses next-hop addresses interface descriptions IP addresses Layer 1 statuses
IP addresses Layer 1 statuses
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 100, it discards the packet and sends a Destination Unreachable 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 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 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 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.
Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.) POP DNS IP TCP Ethernet UDP
POP DNS
Match the application protocols to the correct transport protocols. Match to TCP or UDP DHCP, FTP, HTTP, SMTP, TFTP
TCP: FTP, HTTP, SMTP UDP: DHCP, TFTP
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? Switch1> config t ^ % invalid input detected at '^' marker. The entire command, configure terminal , must be used. The administrator must connect via the console port to access global configuration mode. The administrator is already in global configuration mode. The administrator must first enter privileged EXEC mode before issuing the command.
The administrator must first enter privileged EXEC mode before issuing the command.
What will happen if the default gateway address is incorrectly configured on a host? The host cannot communicate with hosts in other networks. The host cannot communicate with other hosts in the local network. A ping from the host to 127.0.0.1 would not be successful. The switch will not forward packets initiated by the host. The host will have to use ARP to determine the correct address of the default gateway.
The host cannot communicate with hosts in other networks.
Refer to the exhibit. What is wrong with the displayed termination? CCNA1 v7 - ITNv7 - Final Exam Answers 07 The untwisted length of each wire is too long. The woven copper braid should not have been removed. The wrong type of connector is being used. The wires are too thick for the connector that is used.
The untwisted length of each wire is too long.
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 loss of signal strength as distance increases time for a signal to reach its destination
loss of signal strength as distance increases
What are two common causes of signal degradation when using UTP cabling? (Choose two.) loss of light over long distances low-quality cable or connectors low-quality shielding in cable installing cables in conduit improper termination
low-quality cable or connectors improper termination
What characteristic describes a Trojan horse? an attack that slows or crashes a device or network service malicious software or code running on an end device a network device that filters access and traffic coming into a network the use of stolen credentials to access private data
malicious software or code running on an end device
What three requirements are defined by the protocols used in network communcations to allow message transmission across a network? (Choose three.) end-device installation media selection message encoding delivery options connector specifications message size
message encoding delivery options message size
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
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? R1 - R2 | \ S1 S2 | | PC1 PC2 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 nothing, because the router has a route to the destination network 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
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.) mobility options security interference coverage area packet collision extensive cabling
security interference coverage area
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? spam virus worm phishing
worm
Which scenario describes a function provided by the transport layer? -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 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 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 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.
What are three characteristics of the CSMA/CD process? (Choose three.) After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired. A jam signal indicates that the collision has cleared and the media is not busy. All of the devices on a segment see data that passes on the network medium. The device with the electronic token is the only one that can transmit after a collision. 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. A device listens and waits until the media is not busy before transmitting.
What are two features of ARP? (Choose two.) -If a device receiving an ARP request has the destination IPv4 address, it responds with an ARP reply. -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. -If no device responds to the ARP request, then the originating node will broadcast the data packet to all devices on the network segment. -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 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.
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 an ICMPv6 Router Solicitation message to determine what default gateway it should use. -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 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.
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.) -TCP is the preferred protocol when a function requires lower network overhead. -The source port field identifies the running application or service that will handle data returning to the PC. -The TCP source port number identifies the sending host on the network. 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 TCP process running on the PC randomly selects the destination port when establishing a session with the server.
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.
Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.) C:\Windows\system32> tracert 192.168.100.1 Tracing route to 192.168.100.1 over a maximum of 30 hops 1 1 ms <1 ms <1ms 10.10.10.10 2 2 ms 2 ms 1 ms 192.168.1.22 3 2 ms 2 ms 1 ms 192.168.1.62 4 2 ms 2 ms 1 ms 172.16.1.1 5 2 ms 2 ms 1 ms 192.168.100.1 Trace Complete. This host does not have a default gateway configured. There are 4 hops between this device and the device at 192.168.100.1. The average transmission time between the two hosts is 2 milliseconds. There is connectivity between this device and the device at 192.168.100.1. The connectivity between these two hosts allows for videoconferencing calls.
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.
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 authorization accounting authentication
authorization
What are two characteristics of IP? (Choose two.) retransmits packets if errors occur guarantees delivery of packets does not require a dedicated end-to-end connection operates independently of the network media re-assembles out of order packets into the correct order at the receiver end
does not require a dedicated end-to-end connection operates independently of the network media
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? transport layer error check field error correction process field flow control field User Datagram Protocol field frame check sequence field
frame check sequence field
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) —> Case A -handles communication between upper layer networking software and Ethernet NIC hardware -places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame -implements trailer with frame check sequence for error detection -adds Ethernet control information to network protocol data -applies delimiting of Ethernet frame fields to synchronize communication between nodes
implements trailer with frame check sequence for error detection applies delimiting of Ethernet frame fields to synchronize communication between nodes
Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) —> Case C 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 -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
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.) —> Case B -adds Ethernet control information to network protocol data -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 -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 CSMA/CD over legacy shared half-duplex media
What is a function of the data link layer? provides delivery of data between two applications provides for the exchange of frames over a common local media provides end-to-end delivery of data between hosts provides the formatting of data
provides for the exchange of frames over a common local media
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.) integrity scalability quality of service fault tolerance powerline networking security
quality of service fault tolerance security
