CCNA Discovery 4 Chapter 5 V4.0 Answers

1. What is a primary function of a wireless LAN controller?

tuning each AP channel for optimal coverage

providing PoE to the wireless clients

distributing VLAN information to the wireless clients

serving as the point of connection between wireless clients and the wired LAN


2. Which statement applies to a large network with thousands of nodes?

Each wireless phone is normally in a separate VLAN for security reasons.

Multiple firewalls exist throughout the access layer for maximum security protection.

Firewalls cannot be implemented in the multilayer switches and routers.

Intrusion detection is more likely to be performed by a separate device rather than integrated into a switc router.


3. What limitations of the 2960 switch prevent it from providing the services needed in the Distribution layer?

It is limited to copper connections.

It does not support QoS.

It does not support voice VLAN capability.

It does not perform route summarization.


4. A network designer is evaluating the network security implementation for an organization. The designer recommends adding network security devices in front of the server farm, although network security devices been deployed in the Enterprise Edge for two years. What type of attack can be effectively prevented with th recommendation?

virus attack

internal attack

Internet attack

phishing attack


5. Which rule should be followed when implementing the security requirements of a network design?

Always use a common security plan for all business needs.

As standard practice, lower access restrictions for users if cost is too high.

Avoid reducing security in order to add additional network capabilities.

When possible, implement an IDS to protect users from spam.


6. When applying network security, what security measure should be implemented first?

securing the network devices

implementing the firewalls or filters at the enterprise edge

applying security to resources accessed by internal users

applying ACLs to the interfaces of the routers in the internal network


7. What characteristic of a network supports high availability to provide the 99.999% uptime requirement?


high-bandwidth path to servers


wireless management


8. A company lists this equipment in their network design:

• Two Catalyst 4503 Layer 3 switches

• One 5500 security appliance firewall

• Two Catalyst 6509 switches

• Two lightweight access points

• Two Catalyst 2960 switches

Which two types of devices from the list would be appropriate to use at the access layer to provide end-user connectivity? (Choose two.)

Catalyst 4503 switches

Cisco 5500 security appliance firewall

Catalyst 6509 switches

lightweight access points

Catalyst 2960 switches


9. Which network design process identifies the best locations to place access points?

site survey

risk assessment

scalability design

network protocol analysis


10. A network designer is selecting a WAN technology for connections between the headquarters of an organiza and its branch offices. In this context, what is one advantage of choosing Frame Relay over a T1 line?

more secure

flexible bandwidth

shared media across the link

efficiency with fixed length packet size


11. A state-funded college wants to implement Cisco wireless IP phones for employees to use while on campus. college currently has only wired network device access. Which two devices must be incorporated into the network design to best accommodate roaming for wireless IP phones? (Choose two.)

voice VLAN capable switch

autonomous AP

PoE switch

Cisco wireless LAN controller

2960 switch with 48 100-Mb ports

lightweight access points



What is an advantage of having two links connected between the two switches shown

Refer to the exhibit. What is an advantage of having two links connected between the two switches shown?

provides redundancy in case one of the switches fails

provides connectivity to Switch1 when the link to the server fails

provides connectivity when one of the connections between the switches fails

provides power to the other switch when the other switch has lost AC power


13. What characteristic in a routing protocol allows it to support the network design criteria for availability?

CIDR support

fast convergence

timed updates

VLSM support


14. What are three features of a Catalyst 2960 switch? (Choose three.)

network layer functionality

redundant power availability

route summarization


switch clustering

inter-VLAN routing


15. Using expandable, modular network devices is a key element of what network design criteria?






16. What is a function of the access layer in the Cisco three-layer hierarchical internetworking model?

to provide QoS classification and marking

to implement a fast-converging routing protocol

to use routed interconnections between devices

to aggregate traffic and perform route summarization


17. Which three design requirements are implemented at the access layer? (Choose three.)



high-density routing

packet filtering

rapidly converging routing protocols

QoS traffic classification and marking


18. To reduce office overhead, a downtown company now requires that their customer service representatives w from home. All of the employees are located either downtown or in a nearby suburban area. Each employee requires high speed service and connectivity to the Internet through their local ISP. Which term describes thi WAN service?



T1 line

Frame Relay


19. When considering converged network designs, it is important to identify appropriate service demands. What concern when preparing a network design to fit this environment?

business data compensation for sensitivity to noise

location and placement of firewalls

voice-level quality of service

security policy requirements


20. Which two statements are true regarding the following extended ACL? (Choose two.)

access-list 101 deny tcp any eq 20

access-list 101 deny tcp any eq 21

access-list 101 permit ip any any

FTP traffic originating from network is denied.

All traffic is implicitly denied.

FTP traffic destined for the network is denied.

Telnet traffic originating on network is denied.

Web traffic originating from is permitted.



The branch office needs constant access to the servers in the enterprise headquarters

Refer to the exhibit. The branch office needs constant access to the servers in the enterprise headquarters. Therefore, a backup Frame Relay link is added. A network administrator is configuring the routers in the bra office to make sure that when the backup Frame Relay link is used, only the traffic to access the enterprise headquarters is allowed. Which statement is true about the routing configuration on branch office edge route?

The command ip route serial 0/0 50 should be configured on BE2.

The command ip route serial 0/0 50 should be configured on BE1.

The command ip route serial 0/0 50 should be configured on BE2.

The command ip route serial 0/0 50 should be configured on BE1.


22. What is integrated into a Cisco IP phone to reduce the number of ports needed in the wiring closet?




firewall appliance


23. Which two factors should be considered when designing a wireless LAN that provides seamless roaming capabilities? (Choose two.)

use of a wireless controller to manage IP addressing

type of routing protocols

location of existing wired clients


position of MDF



Which statement is true regarding how the ISP router filters traffic

Refer to the exhibit. Which statement is true regarding how the ISP router filters traffic?

Traffic from the address to any destination on the Internet is denied.

Traffic from any source address entering the ISP router interface s0/0/0 is permitted.

Only traffic with a source address of is allowed into the ISP router interface s0/0/0.

All traffic from the network can access the Internet.

Traffic from any source address can access the network.


25. What type of WAN service is Frame Relay?


cell switched

packet switched

circuit switched

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