CCNA 2 – SWITCHING, ROUTING, AND WIRELESS ESSENTIALS |
COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY GUIDE
2026/2027
1. Refer to the exhibit. What will router R1 do with a packet that has a destination IPv6 address of
2001:db8:cafe:5::1? - (ANSWER)forward the packet out Serial0/0/0
2. Refer to the exhibit. Currently router R1 uses an EIGRP route learned from Branch2 to reach the
10.10.0.0/16 network. Which floating static route would create a backup route to the 10.10.0.0/16
network in the event that the link between R1 and Branch2 goes down? - (ANSWER)ip route 10.10.0.0
255.255.0.0 209.165.200.225 100
3. Refer to the exhibit. R1 was configured with the static route command ip route 209.165.200.224
255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach
resources on the Internet. How should this static route be changed to allow user traffic from the LAN to
reach the Internet? - (ANSWER)Change the destination network and mask to 0.0.0.0 0.0.0.0
4. Which option shows a correctly configured IPv4 default static route? - (ANSWER)ip route 0.0.0.0
0.0.0.0 S0/0/0
5. Refer to the exhibit. Which static route command can be entered on R1 to forward traffic to the LAN
connected to R2? - (ANSWER)ipv6 route 2001:db8:12:10::/64 S0/0/1 fe80::2
6. What is a method to launch a VLAN hopping attack? - (ANSWER)introducing a rogue switch and
enabling trunking
7. A cybersecurity analyst is using the macof tool to evaluate configurations of switches deployed in the
backbone network of an organization. Which type of LAN attack is the analyst targeting during this
evaluation? - (ANSWER)MAC address table overflow
8. Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The
administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement
explains the reason that the number of active clients is 0? - (ANSWER)The state is not maintained by the
DHCPv6 server under stateless DHCPv6 operation.
,CCNA 2 – SWITCHING, ROUTING, AND WIRELESS ESSENTIALS |
COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY GUIDE
2026/2027
9. Refer to the exhibit. A network administrator configured routers R1 and R2 as part of HSRP group 1.
After the routers have been reloaded, a user on Host1 complained of lack of connectivity to the Internet
The network administrator issued the show standby brief command on both routers to verify the HSRP
operations. In addition, the administrator observed the ARP table on Host1. Which entry should be seen
in the ARP table on Host1 in order to gain connectivity to the Internet? - (ANSWER)The state is not
maintained by the DHCPv6 server under stateless DHCPv6 operation.
10. Match the forwarding characteristic to its type. (Not all options are used.) - (ANSWER)Frame
forwarding decisions are based on MAC address and port mappings in the CAM table.
12. Which statement describes a result after multiple Cisco LAN switches are interconnected? -
(ANSWER)The broadcast domain expands to all switches.
13. Match the link state to the interface and protocol status. (Not all options are used.) - (ANSWER)
14.Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on
switch SW1 is empty? - (ANSWER)SW1 floods the frame on all ports on SW1, excluding the port through
which the frame entered the switch.
15. An administrator is trying to remove configurations from a switch. After using the command erase
startup-config and reloading the switch, the administrator finds that VLANs 10 and 100 still exist on the
switch. Why were these VLANs not removed? - (ANSWER)Because these VLANs are stored in a file that is
called vlan.dat that is located in flash memory, this file must be manually deleted.
16. Match the description to the correct VLAN type. (Not all options are used.) - (ANSWER)
17. Refer to the exhibit. A network administrator has connected two switches together using
EtherChannel technology. If STP is running, what will be the end result? - (ANSWER)STP will block one of
the redundant links.
18. What is a secure configuration option for remote access to a network device? - (ANSWER)Configure
SSH.
, CCNA 2 – SWITCHING, ROUTING, AND WIRELESS ESSENTIALS |
COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY GUIDE
2026/2027
19. Which wireless encryption method is the most secure? - (ANSWER)WPA2 with AES
20. After attaching four PCs to the switch ports, configuring the SSID and setting authentication
properties for a small office network, a technician successfully tests the connectivity of all PCs that are
connected to the switch and WLAN. A firewall is then configured on the device prior to connecting it to
the Internet. What type of network device includes all of the described features? - (ANSWER)wireless
router
21. Refer to the exhibit. Host A has sent a packet to host B. What will be the source MAC and IP
addresses on the packet when it arrives at host B? - (ANSWER)Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.10
23. Refer to the exhibit. In addition to static routes directing traffic to networks 10.10.0.0/16 and
10.20.0.0/16, Router HQ is also configured with the following command: - (ANSWER)Packets with a
destination network that is not 10.10.0.0/16 or is not 10.20.0.0/16 or is not a directly connected
network will be forwarded to the Internet.
24. What protocol or technology disables redundant paths to eliminate Layer 2 loops? - (ANSWER)STP
25. Refer to the exhibit. Based on the exhibited configuration and output, why is VLAN 99 missing? -
(ANSWER)because VLAN 99 has not yet been created
26. Which two VTP modes allow for the creation, modification, and deletion of VLANs on the local
switch? (Choose two.) - (ANSWER)server
transparent
27. Which three steps should be taken before moving a Cisco switch to a new VTP management domain?
(Choose three.) - (ANSWER)Configure the switch with the name of the new management domain.
Select the correct VTP mode and version.
COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY GUIDE
2026/2027
1. Refer to the exhibit. What will router R1 do with a packet that has a destination IPv6 address of
2001:db8:cafe:5::1? - (ANSWER)forward the packet out Serial0/0/0
2. Refer to the exhibit. Currently router R1 uses an EIGRP route learned from Branch2 to reach the
10.10.0.0/16 network. Which floating static route would create a backup route to the 10.10.0.0/16
network in the event that the link between R1 and Branch2 goes down? - (ANSWER)ip route 10.10.0.0
255.255.0.0 209.165.200.225 100
3. Refer to the exhibit. R1 was configured with the static route command ip route 209.165.200.224
255.255.255.224 S0/0/0 and consequently users on network 172.16.0.0/16 are unable to reach
resources on the Internet. How should this static route be changed to allow user traffic from the LAN to
reach the Internet? - (ANSWER)Change the destination network and mask to 0.0.0.0 0.0.0.0
4. Which option shows a correctly configured IPv4 default static route? - (ANSWER)ip route 0.0.0.0
0.0.0.0 S0/0/0
5. Refer to the exhibit. Which static route command can be entered on R1 to forward traffic to the LAN
connected to R2? - (ANSWER)ipv6 route 2001:db8:12:10::/64 S0/0/1 fe80::2
6. What is a method to launch a VLAN hopping attack? - (ANSWER)introducing a rogue switch and
enabling trunking
7. A cybersecurity analyst is using the macof tool to evaluate configurations of switches deployed in the
backbone network of an organization. Which type of LAN attack is the analyst targeting during this
evaluation? - (ANSWER)MAC address table overflow
8. Refer to the exhibit. A network administrator is configuring a router as a DHCPv6 server. The
administrator issues a show ipv6 dhcp pool command to verify the configuration. Which statement
explains the reason that the number of active clients is 0? - (ANSWER)The state is not maintained by the
DHCPv6 server under stateless DHCPv6 operation.
,CCNA 2 – SWITCHING, ROUTING, AND WIRELESS ESSENTIALS |
COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY GUIDE
2026/2027
9. Refer to the exhibit. A network administrator configured routers R1 and R2 as part of HSRP group 1.
After the routers have been reloaded, a user on Host1 complained of lack of connectivity to the Internet
The network administrator issued the show standby brief command on both routers to verify the HSRP
operations. In addition, the administrator observed the ARP table on Host1. Which entry should be seen
in the ARP table on Host1 in order to gain connectivity to the Internet? - (ANSWER)The state is not
maintained by the DHCPv6 server under stateless DHCPv6 operation.
10. Match the forwarding characteristic to its type. (Not all options are used.) - (ANSWER)Frame
forwarding decisions are based on MAC address and port mappings in the CAM table.
12. Which statement describes a result after multiple Cisco LAN switches are interconnected? -
(ANSWER)The broadcast domain expands to all switches.
13. Match the link state to the interface and protocol status. (Not all options are used.) - (ANSWER)
14.Refer to the exhibit. How is a frame sent from PCA forwarded to PCC if the MAC address table on
switch SW1 is empty? - (ANSWER)SW1 floods the frame on all ports on SW1, excluding the port through
which the frame entered the switch.
15. An administrator is trying to remove configurations from a switch. After using the command erase
startup-config and reloading the switch, the administrator finds that VLANs 10 and 100 still exist on the
switch. Why were these VLANs not removed? - (ANSWER)Because these VLANs are stored in a file that is
called vlan.dat that is located in flash memory, this file must be manually deleted.
16. Match the description to the correct VLAN type. (Not all options are used.) - (ANSWER)
17. Refer to the exhibit. A network administrator has connected two switches together using
EtherChannel technology. If STP is running, what will be the end result? - (ANSWER)STP will block one of
the redundant links.
18. What is a secure configuration option for remote access to a network device? - (ANSWER)Configure
SSH.
, CCNA 2 – SWITCHING, ROUTING, AND WIRELESS ESSENTIALS |
COMPLETE PRACTICE QUESTIONS, ANSWERS & STUDY GUIDE
2026/2027
19. Which wireless encryption method is the most secure? - (ANSWER)WPA2 with AES
20. After attaching four PCs to the switch ports, configuring the SSID and setting authentication
properties for a small office network, a technician successfully tests the connectivity of all PCs that are
connected to the switch and WLAN. A firewall is then configured on the device prior to connecting it to
the Internet. What type of network device includes all of the described features? - (ANSWER)wireless
router
21. Refer to the exhibit. Host A has sent a packet to host B. What will be the source MAC and IP
addresses on the packet when it arrives at host B? - (ANSWER)Source MAC: 00E0.FE91.7799
Source IP: 10.1.1.10
23. Refer to the exhibit. In addition to static routes directing traffic to networks 10.10.0.0/16 and
10.20.0.0/16, Router HQ is also configured with the following command: - (ANSWER)Packets with a
destination network that is not 10.10.0.0/16 or is not 10.20.0.0/16 or is not a directly connected
network will be forwarded to the Internet.
24. What protocol or technology disables redundant paths to eliminate Layer 2 loops? - (ANSWER)STP
25. Refer to the exhibit. Based on the exhibited configuration and output, why is VLAN 99 missing? -
(ANSWER)because VLAN 99 has not yet been created
26. Which two VTP modes allow for the creation, modification, and deletion of VLANs on the local
switch? (Choose two.) - (ANSWER)server
transparent
27. Which three steps should be taken before moving a Cisco switch to a new VTP management domain?
(Choose three.) - (ANSWER)Configure the switch with the name of the new management domain.
Select the correct VTP mode and version.
