CCNA 4 Chapter 7

 

This item references content from the following areas:

CCNA Exploration
7.3.2 IPv6 Addressing
Assessment Item:

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?

8
16
80
128

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
2 points for Option 2
0 points for any other option

This item references content from the following areas:

CCNA Exploration
7.3.2 IPv6 Addressing
Assessment Item:

How many bits of an IPv6 address are used to identify the interface

ID?

32
48
64
128

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
2 points for Option 3

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?

It will randomly generate a 64 bit interface ID.
It will assign an address from the pool of IPv6 private addresses to

the interface.
It will assign only the registry prefix of the IPv6 Global Unicast

address to the interface.
The configuration will derive the interface portion of the IPv6

address from the MAC address of the interface.

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
2 points for Option 4
0 points for any other option

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.)

10.0.0.125
179.9.8.95
179.9.8.98
179.9.8.101
179.9.8.112

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
Option 3 and Option 4 are correct.
1 point for each correct option.

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?

10.1.1.1
172.30.20.2
192.168.1.2
255.255.255.255

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
2 points for Option 2
0 points for any other option
Max Value = 2

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.)

dynamic NAT
NAT with overloading
open port 20
open port 21
open port 23
NAT with port forwarding

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
Option 3, Option 4, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required.

This item references content from the following areas:

CCNA Exploration
7.3.8 Configuring RIPng with IPv6
Assessment Item:

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.
Enter the ipv6 router rip name command and then use network statements

to activate RIPng on the interfaces.
Enter the router rip command, and then activate RIPng using the

version command. RIPng then automatically runs on all IPv6 interfaces.
Enter the interface programming mode for each IPv6 interface and

enable the multicast group FF02::9, and then activate RIPng globally

using the ipv6 router rip name command.

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
2 points for Option 1
0 points for any other option

This item references content from the following areas:

CCNA Exploration
7.3.5 IPv6 Tunneling
Assessment Item:

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?

Replace the devices on the public network with devices that support

IPv6.
Configure RIPng on the border routers of each IPv6 island.
Configure the routers to take advantage of dual-stack technology.
Use tunneling to encapsulate the IPv6 traffic in the IPv4 protocol.

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 4
0 points for any other option

Refer to the exhibit. How many IPv6 broadcast domains exist in this

topology?

0
1
2
3
4

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 1
0 points for any other option

This item references content from the following areas:

CCNA Exploration
7.2.7 Configuring Port Forwarding
Assessment Item:

 

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 inside sees web traffic coming from 192.168.1.3 using

port 8080.
The address 172.16.1.1 is translated into an address from the pool

beginning with 192.168.1.3.
A user on the outside network sees a request addressed from

192.168.1.3 using port 80.
A user on the outside must address traffic to port 8080 to reach the

address 172.16.1.1.

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 3
0 points for any other option

Refer to the exhibit. Traffic exiting R1 is failing translation. What

part of the configuration is most likely incorrect?

ip nat pool statement
access-list statement
ip nat inside is on the wrong interface
interface s0/0/2 should be a private IP address

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 2

This item references content from the following areas:

CCNA Exploration
7.2.8 Verifying and Troubleshooting NAT Configurations
Assessment Item:

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?

The supervisor wants to clear any confidential information that may be

seen by the technician.
Because entries can be cached for long periods of time, the supervisor

wants to prevent decisions being made based on old data.
The translation table may be full and is unable to make new

translations until space is available.
Clearing the translations causes the starting configuration to be

reread and may correct translation problems that have occurred.

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
2 points for Option 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
defines which addresses are allowed into the router
defines which addresses are assigned to a NAT pool
defines which addresses are allowed out of the router

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 1
0 points for any other option

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.
Traffic from the 209.165.200.0 network will be translated.
Permitted traffic gets translated to a single inside global IP

address.
A pool of inside global IP addresses from the 10.1.1.0 network will be

used for translation.
External users from the 209.165.200.0 network can reach private

addresses on the 10.1.1.0 and 10.1.2.0 networks.

 

Reset

Scoring Rule for:   correctness of response
Option 1 and Option 3 are correct.
1 point for each correct option.

Refer to the exhibit. Which address or addresses represent the inside

global address?

10.1.1.2
192.168.0.100
209.165.20.25
any address in the 10.1.1.0 network

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 3
0 points for any other

This item references content from the following areas:

CCNA Exploration
7.2.2 What is NAT?
Assessment Item:

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?

NAT overload
static NAT
dynamic NAT
PAT

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 2
0 points for any other option

Assessment Item:

What is true regarding the differences between NAT and PAT?

PAT uses the word "overload" at the end of the access-list statement

to share a single registered address.
Static NAT allows an unregistered address to map to multiple

registered addresses.
Dynamic NAT allows hosts to receive the same global address each time

external access is required.
PAT uses unique source port numbers to distinguish between

translations.

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 4
0 points for any other option

This item references content from the following areas:

CCNA Exploration
7.2.3 Benefits and Drawbacks of Using NAT
Assessment Item:

What are two benefits of NAT? (Choose two.)

It saves public IP addresses.
It adds a degree of privacy and security to a network.
It increases routing performance.
It makes troubleshooting routing issues easier.
It makes tunneling with IPsec less complicated.

 

Reset

Scoring Rule for:   correctness of response
Option 1 and Option 2 are correct.
1 point for each correct option.
0 points if more options are selected

Refer to the exhibit. According to the output, how many addresses have

been successfully assigned by this DHCP server?

1
6
7
8
9

 

Reset    View Learner Response

Scoring Rule for:   correctness of response
2 points for Option 4
0 points for any other option
Max Value = 2

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.
The DHCP server dynamically assigns the addresses.
The addresses must be listed under the DHCP pool of addresses before

they are available for static assignment.
The addresses must be listed under the DHCP pool of addresses before

they are available for dynamic assignment.

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 1

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 DHCP server service is not enabled.
The inside interface for DCHP is not defined.
The DHCP pool is not bound to the interface.
The pool does not have a default router defined for the clients.
All the host addresses have been excluded from the DHCP pool.

 

Reset

Scoring Rule for:   correctness of response
2 points for Option 4
0 points for any other option