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Cisco final exam
Terms in this set (60)
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.
What happens when the transport input ssh command is entered on the switch vty lines?
Communication between the switch and remote users is encrypted.
What is the subnet ID associated with the IPv6 address 2001:DA48:FC5:A4:3D1B::1/64?
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.
Which range of link-local addresses can be assigned to an IPv6-enabled interface?
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.
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.)
security, interference, coverage area
Refer to the exhibit. What is wrong with the displayed termination?
The untwisted length of each wire is too long.
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.)
Match the application protocols to the correct transport protocols.
TCP: FTP,HTTP,SMTP && UDP: DHCP, TFTP
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 two pieces of information are displayed in the output of the show ip interface brief command? (Choose two.)
IP addresses, Layer 1 statuses
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?
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 is a function of the data link layer?
provides for the exchange of frames over a common local media
What characteristic describes a Trojan horse?
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.)
message encoding, delivery options, message size
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 administrator must first enter privileged EXEC mode before issuing the command.
Refer to the exhibit. On the basis of the output, which two statements about network connectivity are correct? (Choose two.)
There are 4 hops between this device and the device at 192.168.100.1. AND There is connectivity between this device and the device at 192.168.100.1.
What are two characteristics of IP? (Choose two.)
does not require a dedicated end-to-end connection AND operates independently of the network media
What will happen if the default gateway address is incorrectly configured on a host?
The host cannot communicate with hosts in other networks.
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?
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?
What are two common causes of signal degradation when using UTP cabling? (Choose two.)
low-quality cable or connectors AND improper termination
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.
What is the consequence of configuring a router with the ipv6 unicast-routing global configuration command?
The IPv6 enabled router interfaces begin sending ICMPv6 Router Advertisement messages.
Which two protocols operate at the top layer of the TCP/IP protocol suite? (Choose two.)
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 configure a new Layer 2 header before sending it out S0/0/0
Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.)
application, session, presentation
What does the term "attenuation" mean in data communication?
loss of signal strength as distance increases
Which subnet would include the address 192.168.1.96 as a usable host address?
Why would a Layer 2 switch need an IP address?
to enable the switch to be managed remotely
How does the service password-encryption command enhance password security on Cisco routers and switches?
It encrypts passwords that are stored in router or switch configuration files.
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. AND The Time-to-Live field from IPv4 has been replaced by the Hop Limit field in IPv6.
Which two statements accurately describe an advantage or a disadvantage when deploying NAT for IPv4 in a network? (Choose two.)
NAT provides a solution to slow down the IPv4 address depletion. AND NAT introduces problems for some applications that require end-to-end connectivity.
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.
A client packet is received by a server. The packet has a destination port number of 67. What service is the client requesting?
What are the two most effective ways to defend against malware? (Choose two.)
Update the operating system and other application software. AND Install and update antivirus software.
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 the IP domain name on the router. AND Generate the SSH keys. AND Enable inbound vty SSH sessions.
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.
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?
What are proprietary protocols?
protocols developed by organizations who have control over their definition and operation
What is an advantage to using a protocol that is defined by an open standard?
It encourages competition and promotes choices.
Which type of server relies on record types such as A, NS, AAAA, and MX in order to provide services?
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?
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
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?
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?
Which information does the show startup-config command display?
the contents of the saved configuration file in the NVRAM
What are two primary responsibilities of the Ethernet MAC sublayer? (Choose two.)
accessing the media, data encapsulation
Which switching method drops frames that fail the FCS check?
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 from the email client.
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?
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?
Which wireless technology has low-power and data rate requirements making it popular in home automation applications?
What are two characteristics shared by TCP and UDP? (Choose two.)
port numbering, use of checksum
A client packet is received by a server. The packet has a destination port number of 69. What service is the client requesting?
What service is provided by Internet Messenger?
An application that allows real-time chatting among remote users
What characteristic describes antispyware?
applications that protect end devices from becoming infected with malicious software
Refer to the exhibit. A company uses the address block of 184.108.40.206/16 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?
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