Cisco Certified Network Associate (CCNA) certification COMPLETE QUESTIONS AND VERIFIED SOLUTIONS LATEST UPDATE THIS YEAR

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Cisco Certified Network Associate (CCNA) certification

COMPLETE QUESTIONS AND VERIFIED SOLUTIONS 2026-

2027 LATEST UPDATE THIS YEAR



QUESTION: 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? - ANSWER-It must send an ICMPv6 Neighbor Solicitation message to

ensure that the address is not already in use on the network.




QUESTION: Which range of link-local addresses can be assigned to an IPv6-enabled interface? -

ANSWER-FE80::/10




QUESTION: What mechanism is used by a router to prevent a received IPv4 packet from

traveling endlessly on a network? - ANSWER-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.

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QUESTION: 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.) - ANSWER--security


-interference


-coverage area




QUESTION: Refer to the exhibit. What is wrong with the displayed termination? - ANSWER-The

untwisted length of each wire is too long.




QUESTION: 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.) - ANSWER--EMI


-RFI




QUESTION: 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.) - ANSWER--The

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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.


Q; 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? - ANSWER-Exit privileged EXEC mode and press Enter.




QUESTION: What happens when the transport input ssh command is entered on the switch vty

lines? - ANSWER-Communication between the switch and remote users is encrypted.




QUESTION: What is the subnet ID associated with the IPv6 address

2001:DA48:FC5:A4:3D1B::1/64? - ANSWER-2001:DA48:FC5:A4::/64




QUESTION: Match the application protocols to the correct transport protocols. - ANSWER--

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QUESTION: 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.) - ANSWER--ping


-ipconfig


-nslookup




QUESTION: What two pieces of information are displayed in the output of the show ip interface

brief command? (Choose two.) - ANSWER--IP addresses


-Layer 1 statuses




QUESTION: 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? - ANSWER-255.255.255.224