CCNA 4 Chapter 8 Exam Answers
1. Which troubleshooting approach is suggested for dealing with a complex problem that is suspected of being caused by faulty network cabling?
bottom up
top down
divide and conquer
middle out
2. Refer to the exhibit. Users on the Internal LAN are unable to connect to the www server. The network administrator pings the server and verifies that NAT is functioning correctly. Which OSI layer should the administrator begin to troubleshoot next?
physical
data link
network
application
3. Refer to the exhibit. Which two steps should be taken during the process of creating network documentation? (Choose two.)
Record the information about the devices discovered in the Campus network only.
Record the information about the devices discovered in the entire network, including the remote locations.
Transfer any information about the devices from the network configuration table that corresponds to a component of the topology diagram.
Transfer only the Layer 2 and Layer 3 information about the devices from the network configuration table that corresponds to a component of the topology diagram.
Transfer the recorded information about the devices from the network configuration table gathered during peak network utilization that corresponds to a component of the topology diagram.
CCNA 4 Chapter 7 Exam Answers
1. 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.
2. 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.
3. How many bits of an IPv6 address are used to identify the interface ID?
32
48
64
128
CCNA 4 Chapter 6 Exam Answers
1. What two protocols provide data authentication and integrity for IPsec? (Choose two.)
AH
L2TP
ESP
GRE
PPTP
2. After conducting research to learn about common remote connection options for teleworkers, a network administrator has decided to implement remote access over broadband to establish VPN connections over the public Internet. What is the result of this solution?
A reliable connection is established at greater speeds than what is offered from dialup over POTS. Security is increased, but username and password information are sent in plain text.
The connection has increased security and reliable connectivity. Users need a remote VPN router or VPN client software.
Security and reliability are increased at a substantial loss in throughput, which is considered acceptable when supporting a single user environment.
Reliability and security are increased without the need for additional equipment, when compared to dialup connections using POTS.
3. A company is using WiMAX to provide access for teleworkers. What home equipment must the company provide at the teleworker’s site?
a WiMAX tower
a one-way multicast satellite
a WiMAX receiver
an access point connected to the company WLAN
CCNA 4 Chapter 5 Exam Answers
1. Which feature will require the use of a named ACL rather than a numbered ACL?
the ability to filter traffic based on a specific protocol
the ability to filter traffic based on an entire protocol suite and destination
the ability to specify source and destination addresses to use when identifying traffic
the ability to edit the ACL and add additional statements in the middle of the list without removing and re-creating the list
2. Which two statements are true regarding the significance of the access control list wildcard mask 0.0.0.7? (Choose two.)
The first 29 bits of a given IP address will be ignored.
The last 3 bits of a given IP address will be ignored.
The first 32 bits of a given IP address will be checked.
The first 29 bits of a given IP address will be checked.
The last 3 bits of a given IP address will be checked.
3. Which two statements are correct about extended ACLs? (Choose two)
Extended ACLs use a number range from 1-99.
Extended ACLs end with an implicit permit statement.
Extended ACLs evaluate the source and destination addresses.
Port numbers can be used to add greater definition to an ACL.
Multiple ACLs can be placed on the same interface as long as they are in the same direction.
CCNA 4 Chapter 4 Exam Answers
1. Users are unable to access a company server. The system logs show that the server is operating slowly because it is receiving a high level of fake requests for service. Which type of attack is occurring?
reconnaissance
access
DoS
worm
virus
Trojan horse
2. Intrusion detection occurs at which stage of the Security Wheel?
securing
monitoring
testing
improvement
reconnaissance
3. Refer to the exhibit. Security Device Manager (SDM) has been used to configure a required level of security on the router. What would be accomplished when the SDM applies the next step on the security problems that are identified on the router?
SDM will automatically invoke the AutoSecure command.
SDM will generate a report that will outline the proper configuration actions to alleviate the security issues.
SDM will create a configuration file that can be copy and pasted into the router to reconfigure the services.
SDM will reconfigure the services that are marked in the exhibit as “fix it” to apply the suggested security changes.