1. Refer to the exhibit. Traffic exiting R1 is failing
translation. What part of the configuration is most likely incorrect?
Access-list statement
2. Refer to the exhibit. What is the purpose of the command
marked with an arrow shown in the partial configuration output of a Cisco
broadband router?
defines which addresses can be translated
3. How many bits of an IPv6 address are used to identify the
interface ID?
64
4. Refer to the exhibit. How many IPv6 broadcast domains
exist in this topology?
0
5. Refer to the exhibit. Which two addresses could be
assigned to traffic leaving S0 as a result of the statement ip nat pool Tampa
179.9.8.96 179.9.8.111 netmask 255.255.255.240? (Choose two.)
179.9.8.98
179.9.8.101
6. Refer to the exhibit. A network technician determines
DHCP clients are not working properly. The clients are receiving IP
configuration information from a DHCP server configured on the router but
cannot access the Internet. From the output in the graphic, what is the most
likely problem?
The pool does not have a default router defined for the
clients.
7. Your organization is issued the IPv6 prefix of
2001:0000:130F::/48 by your service provider. With this prefix, how many bits
are available for your organization to create subnetworks?
16
8. After activating IPv6 routing on a Cisco router and
programming IPv6 addresses on multiple interfaces, what is the remaining step
to activate RIPng?
Enter the interface programming mode for each IPv6 interface
and enable IPng RIP.
9. Refer to the exhibit. IPv6 address 2006:1::1/64 eui-64
has been configured on the router FastEthernet0/0 interface. Which statement
accurately describes the EUI-64 identifier configuration?
The configuration will derive the interface portion of the
IPv6 address from the MAC address of the interface.
10. What is true regarding the differences between NAT and
PAT?
PAT uses unique source port numbers to distinguish between
translations.
11. Refer to the exhibit. The FTP server has an RFC 1918
private address. Users on the Internet need to connect to the FTP server on the
Fa0/0 LAN of R1. Which three configurations must be completed on R1? (Choose
three.)
Open port 20
Open port 21
NAT with port forwarding
12. Refer to the exhibit. On the basis of the configuration
shown, how should the pool of the excluded addresses be assigned to key hosts
on the network, such as router interfaces, printers, and servers?
The addresses are statically assigned by the network
administrator.
13. Refer to the exhibit. A technician used SDM to enter the
NAT configuration for a Cisco router. Which statement correctly describes the
result of the configuration?
A user on the outside network sees a request addressed from
192.168.1.3 using port 80.
14. Refer to the exhibit. According to the output, how many
addresses have been successfully assigned or renewed by this DHCP server?
8
15. What are two benefits of NAT? (Choose two.)
It saves public IP addresses.
It adds a degree of privacy and security to a network.
16. Refer to the exhibit. R1 is performing NAT for the
10.1.1.0/24 network, and R2 is performing NAT for the 192.168.1.2/24 network.
What would be valid destination IP address for HostA to put in its IP header
when communicating with the web server?
172.30.20.2
17. Refer to the exhibit. Which two statements about the
configuration are true? (Choose two.)
Traffic from the 10.1.1.0 network will be translated.
Permitted traffic gets translated to a single inside global
IP address.
18. What type of NAT should a network administrator use to
ensure that a web server on the inside network is always available to the
outside network?
Static NAT
Dynamic NAT
19. Refer to the exhibit. Which address or addresses
represent the inside global address?
209.165.20.25
20. A technician has been told by a supervisor to always
clear any dynamic translations before attempting to troubleshoot a failed NAT
connection. Why has the supervisor issued these instructions?
Because entries can be cached for long periods of time, the
supervisor wants to prevent decisions being made based on old data.
21. A network administrator wants to connect two IPv6
islands. The easiest way is through a public network that uses only IPv4
equipment. What simple solution solves the problem?
Use tunneling to encapsulate the IPv6 traffic in the IPv4
protocol.
CCNA 4 Chapter 7 Answers |
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