CCNA 2 Final Exam Question/Answers
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?
a. The default gateway address is not provided in the pool.
b. No clients have communicated with the DHCPv6 server yet.
c. The IPv6 DHCP pool configuration has no IPv6 address range specified
d. The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation. Correct Answer:
d. The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
Which command, when issued in the interface configuration mode of a router, enables the interface to
acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?
a. ip dhcp pool
b. ip address dhcp
c. service dhcp
d. ip helper-address Correct Answer: b. ip address dhcp
Which kind of message is sent by a DHCP client when its IP address lease has expired?
a. a DHCPDISCOVER broadcast message
b. a DHCPREQUEST broadcast message
c. a DHCPREQUEST unicast message
d. a DHCPDISCOVER unicast message Correct Answer: c. a DHCPREQUEST unicast message
Refer to the exhibit. R1 has been configured as shown. However, PC1 is not able to receive an IPv4
address. What is the problem?
a. A DHCP server must be installed on the same LAN as the host that is receiving the IP address.
b. R1 is not configured as a DHCPv4 server.
c. The ip address dhcp command was not issued on the interface Gi0/1.
,d. The ip helper-address command was applied on the wrong interface. Correct Answer: d. The ip
helper-address command was applied on the wrong interface.
A college marketing department has networked storage device that uses the IP address 10.18.7.5, TCP
port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the
router that connects to the Internet. The router interface has the public IP address of
209.165.200.255/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228-
236. Which configuration would the network administrator add to allow this device to be accessed by
the marketing personnel from home?
a. ip nat pool mktv 10.18.7.5 10.18.7.5
b. ip nat outside source static 10.18.7.5 209.165.200.255
c. ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.255 4365
d. ip nat inside source static tcp 209.165.200.225443 10.18.7.5 443
ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365
e. No additional configuration is necessary. Correct Answer: c. ip nat inside source static tcp 10.18.7.5
443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.255 4365
What is a disadvantage of NAT?
a. There is no end-to-end addressing.
b. The router does not need to alter the checksum of the IPv4 packets.
c. The internal hosts have to use a single public IPv4 address for external communication.
d. The costs of readdressing hosts can be significant for a publicly addressed network. Correct Answer:
a. There is no end-to-end addressing.
Which type of traffic would most likely have problems when passing through a NAT device?
a. Telnet
b. IPsec
c. HTTP
d. ICMP
e. DNS Correct Answer: b. IPsec
What benefit does NAT64 provide?
, a. It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.
b. It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address.
c. It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4
addresses.
d. It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from
hosts on public IPv4 networks. Correct Answer: c. It allows sites to connect IPv6 hosts to an IPv4
network by translating the IPv6 addresses to IPv4 addresses.
Refer to the exhibit. The Gigabit interfaces on both routers have been configured with subinterface
numbers that match the VLAN numbers connected to them. PCs on VLAN 10 should be able to print to
the P1 printer on VLAN 12. PCs on VLAN 20 should print to the printers on VLAN 22. What interface and
in what direction should you place a standard ACL that allows printing to P1 from data VLAN 10, but
stops the PCs on VLAN 20 from using the P1 printer? (Choose two)
a. R1 Gi0/1.12
b. R1 S0/0/0
c. R2 S0/0/1
d. R2 Gi0/1.20
e. inbound
f. outbound Correct Answer: a. R1 Gi0/1.12
f. outbound
Which two packet filters could a network administrator use on an IPv4 extended ACL? (Choose two)
a. destination MAC address
b. ICMP message type
c. computer type
d. source TCP hello address
e. destination UDP port number Correct Answer: b. ICMP message type
e. destination UDP port number
A network administrator is explaining to a junior colleague the use of the It and gt keywords when
filtering packets using an extended ACL. Where would the It or gt keywords be used?
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?
a. The default gateway address is not provided in the pool.
b. No clients have communicated with the DHCPv6 server yet.
c. The IPv6 DHCP pool configuration has no IPv6 address range specified
d. The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation. Correct Answer:
d. The state is not maintained by the DHCPv6 server under stateless DHCPv6 operation.
Which command, when issued in the interface configuration mode of a router, enables the interface to
acquire an IPv4 address automatically from an ISP, when that link to the ISP is enabled?
a. ip dhcp pool
b. ip address dhcp
c. service dhcp
d. ip helper-address Correct Answer: b. ip address dhcp
Which kind of message is sent by a DHCP client when its IP address lease has expired?
a. a DHCPDISCOVER broadcast message
b. a DHCPREQUEST broadcast message
c. a DHCPREQUEST unicast message
d. a DHCPDISCOVER unicast message Correct Answer: c. a DHCPREQUEST unicast message
Refer to the exhibit. R1 has been configured as shown. However, PC1 is not able to receive an IPv4
address. What is the problem?
a. A DHCP server must be installed on the same LAN as the host that is receiving the IP address.
b. R1 is not configured as a DHCPv4 server.
c. The ip address dhcp command was not issued on the interface Gi0/1.
,d. The ip helper-address command was applied on the wrong interface. Correct Answer: d. The ip
helper-address command was applied on the wrong interface.
A college marketing department has networked storage device that uses the IP address 10.18.7.5, TCP
port 443 for encryption, and UDP port 4365 for video streaming. The college already uses PAT on the
router that connects to the Internet. The router interface has the public IP address of
209.165.200.255/30. The IP NAT pool currently uses the IP addresses ranging from 209.165.200.228-
236. Which configuration would the network administrator add to allow this device to be accessed by
the marketing personnel from home?
a. ip nat pool mktv 10.18.7.5 10.18.7.5
b. ip nat outside source static 10.18.7.5 209.165.200.255
c. ip nat inside source static tcp 10.18.7.5 443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.255 4365
d. ip nat inside source static tcp 209.165.200.225443 10.18.7.5 443
ip nat inside source static udp 209.165.200.225 4365 10.18.7.5 4365
e. No additional configuration is necessary. Correct Answer: c. ip nat inside source static tcp 10.18.7.5
443 209.165.200.225 443
ip nat inside source static udp 10.18.7.5 4365 209.165.200.255 4365
What is a disadvantage of NAT?
a. There is no end-to-end addressing.
b. The router does not need to alter the checksum of the IPv4 packets.
c. The internal hosts have to use a single public IPv4 address for external communication.
d. The costs of readdressing hosts can be significant for a publicly addressed network. Correct Answer:
a. There is no end-to-end addressing.
Which type of traffic would most likely have problems when passing through a NAT device?
a. Telnet
b. IPsec
c. HTTP
d. ICMP
e. DNS Correct Answer: b. IPsec
What benefit does NAT64 provide?
, a. It allows sites to use private IPv6 addresses and translates them to global IPv6 addresses.
b. It allows sites to connect multiple IPv4 hosts to the Internet via the use of a single public IPv4 address.
c. It allows sites to connect IPv6 hosts to an IPv4 network by translating the IPv6 addresses to IPv4
addresses.
d. It allows sites to use private IPv4 addresses, and thus hides the internal addressing structure from
hosts on public IPv4 networks. Correct Answer: c. It allows sites to connect IPv6 hosts to an IPv4
network by translating the IPv6 addresses to IPv4 addresses.
Refer to the exhibit. The Gigabit interfaces on both routers have been configured with subinterface
numbers that match the VLAN numbers connected to them. PCs on VLAN 10 should be able to print to
the P1 printer on VLAN 12. PCs on VLAN 20 should print to the printers on VLAN 22. What interface and
in what direction should you place a standard ACL that allows printing to P1 from data VLAN 10, but
stops the PCs on VLAN 20 from using the P1 printer? (Choose two)
a. R1 Gi0/1.12
b. R1 S0/0/0
c. R2 S0/0/1
d. R2 Gi0/1.20
e. inbound
f. outbound Correct Answer: a. R1 Gi0/1.12
f. outbound
Which two packet filters could a network administrator use on an IPv4 extended ACL? (Choose two)
a. destination MAC address
b. ICMP message type
c. computer type
d. source TCP hello address
e. destination UDP port number Correct Answer: b. ICMP message type
e. destination UDP port number
A network administrator is explaining to a junior colleague the use of the It and gt keywords when
filtering packets using an extended ACL. Where would the It or gt keywords be used?
