Cisco Final Exam

Which subnet would include the address 192.168.1.96 as a usable host address?

192.168.1.32/27

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

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?

255.255.255.0

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 ca use for the new network?

255.255.255.128

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

What service is provided by HTTP?

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

Refer to the exhibit. Which protocol was responsible for building the table that is shown? Interface: 192.168.1.67 - 0xa Interface address physical address type 192.168.1.254 64-0f-29-0d-36-91 dynamic interface: 10.82.253.91 - 0x10

ARP

What service is provided by Internet Messenger?

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

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?

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

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

DHCP

A client packet is received by a server. The packet has a destination port number of 53. What service is the client requesting?

DNS

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?

DNS server default gateway

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

IMAP

Refer to the exhibit. The network administrator has assigned the LAN of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 prefix. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the properties of the workgroup server to allow connectivity to the Internet?

IP address: 192.168.10.38 subnet mask: 255.255.255.248, default gateway: 192.168.10.33

What are two features of ARP?

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 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?

It encourages competition and promotes choices.

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 Neighbor Solicitation message to ensure that the address is not already in use on the network.

What attribute of a NIC would place it at the data link layer of the OSI model?

MAC

What are two ICMPv6 messages that are not present in ICMP for IPv4?

Neighbor Solicitation Router Advertisement

What is a benefit of using cloud computing in networking?

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

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

POP3

Refer to the exhibit. The IP address of which device interface should be used as the default gateway setting of host H1?

R1: G0/0

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?

Remove the Ethernet header and config a new layer 2 header before sending it out S0/0/0

What service is provided by DNS?

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

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 source port number that is used by each application.

What will happen if the default gateway address is incorrectly configed on a host?

The host cannot communicate with hosts in other networks.

Which value, that is contained in an IPv4 header field, is decremented by each router that receives a packet?

Time to Live

Which type of security threat would be responsible if a spreadsheet add-on disables the local software firewall?

Trojan horse

What are the two most effective ways to defend against malware?

Update the operating system Install and update antivirus

What characteristic describes a VPN?

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

An IPv6 enabled device sends a data packet with the destination address of FF02::2. What is the target of this packet?​

all IPv6 configured routers on the local link​

Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?

application, transport, Internet, and network access layers

What characteristic describes antispyware?

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

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?

frame check sequence field

What service is provided by FTP?

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?

Communication between the switch and remote users is the encrypted

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

DNS

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

HTTP

What are two common causes of signal degradation when using UTP cabling?

Improper termination Low quality cable or connectors

What service is provided by BOOTP?

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

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

TFTP

Which two statements are correct in a comparison of IPv4 and IPv6 packet headers?

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 are three commonly followed standards for constructing and installing cabling?

cable lengths pinouts connector types

Which layer of the TCP/IP model provides a route to forward messages through an internetwork?

internet

What command can be used on a Windows PC to see the IP configuration of that computer?

ipconfig

What characteristic describes a virus?

malicious software or code running on an end device

What are two characteristics shared by TCP and UDP?

port numbering use of checksum

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.)

ping ipconfig nslookup

What are proprietary protocols?

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

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication?

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

What characteristic describes adware?

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

What characteristic describes spyware?

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

Which switching method drops frames that fail the FCS check?

store-and-forward switching

What are the three parts of an IPv6 global unicast address?

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?

switch the packet to the directly connected interface

What is the purpose of the TCP sliding window?

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

What two security solutions are most likely to be used only in a corporate environment?

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 value in the TTL field reaches zero

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.

A = /25 B = /26 C = /27 D = /30

Which two functions are preformed at the LLC sublayer of the OSI data link layer to facilitate ethernet communication?

Enable 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

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?

Exit privileged EXEC mode and press Enter .

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

FTP

Which two functions are preformed at the LLC sublayer of the OSI data link layer to facilitate ethernet communication?

Handles communication between upper layer networking software and Ethernet NIC hardware Adds Ethernet control information to network protocol data

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 an ARP request for the MAC address of the default gateway. OR It will send the frame with a broadcast MAC address

What is an advantage for small organizations of adopting IMAP instead of POP

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

Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network?

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

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?

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

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?

RFI EMI

A disgruntled employee is sing some free wireless networking tools to determine information about the enterprise wireless networks. This person is planning on suing this info to hack the wireless network. What type of attack is this?

Reconnaissance

What service is provided by POP3?

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

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?

SSH

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?

Security QoS Fault tolerance

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?

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.)

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

What is the consequence of configuring a router with the ipv6 unicast routing global config command?

The ipv6 enabled router interfaces begin sending ICMPv6 router advertisement messages.

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 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?

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 untwisted length of each wire is too long.

Refer to the exhibit. On the basis of the output, which two statements about network connectivity ae correct?

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 service is provided by HTTPS?

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

Which two traffic types use the Real-Time Transport Protocol (RTP)?

Video Voice

Which wireless technology has low-power and data rate requirements making it popular in home automation applications?

ZigBee

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?

audio conference, financial transactions, web page

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?

nslookup

Refer to the exhibit. The switches are in their default configuration. Host A needs to communicate with host D, but host A does not have the MAC address for its default gateway. Which network hosts will receive the ARP request sent by host A?

only hosts B, C, and router R1

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?

peer to peer

What is a function of the data link layer?

provides for the exchange of frames over a common local media

Which information does the show startup-config command display?

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?

the network performance baseline

Which two functions are performed at the MAC sublayer of the OSI Data Link Layer to facilitate Ethernet communication?

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

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 implements CSMA/CD over legacy shared half-duplex media

What characteristic describes a Trojan horse?

malicious software or code running on an end device

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?

255.255.255.240

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

255.255.255.192

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?

255.255.255.224

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

255.255.255.224

What method is used to manage contention-based access on a wireless network?

CSMA/CA

Which two statements describe how to assess traffic flow patterns and network traffic types suing a protocol analyzer?

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