CCNA 3 Module 5 V3.1 Answers

1. At which layer of the hierarchical design model do users connect to the network?

application

access

distribution

network

core

 

2. Which layer of the hierarchical network design model is often referred to as the backbone?

access

distribution

network

core

workgroup

WAN

 

3. What will increase the number of broadcast domains in a network? (Choose two.)

replacing hubs with switches

segmenting the network by installing a router

creating VLANs for each workgroup

adding additional hubs to the local area network

replacing routers with LAN switches

adding bridges to connect different workgroups

 

4. Where should DNS and email servers be located?

IDF

MDF

HCC

VCC

POP

 

5. VLAN1 and VLAN2 have been configured on a switch. What must be done for hosts on VLAN1 to communicate with hosts on VLAN2?

VLAN overlapping must be enabled on the switch.

The MAC address must be added to the ARP table in the switch.

A router must be configured to allow routing between the VLANs.

An entry in the switching table must be configured for each VLAN.

Communication between VLANs is automatically enabled on switches.

 

6. What type of cabling is specified by TIA/EIA standards for interconnection of Intermediate and Main Distribution Facilities?

patch cables of variable lengths

horizontal cross-connect cabling

vertical cross-connect cabling

parallel cross-connect cabling

 

7. Which of the following affect network availability? (Choose three.)

throughput

response time

workstation speed

access to resources

desktop applications

 

8. Which of the following are requirements of LAN design? (Choose three.)

adaptability

manageability

operability

scalability

stability

 

9. Why is it important that the data carrying capacity of vertical cabling be greater than that of the horizontal cable?

Vertical cabling is reserved for high bandwith video conferencing.

Vertical cabling carries traffic from the IDF to the user.

Vertical cabling carries traffic from the enterprise out to the Internet.

Vertical cabling carries traffic from multiple areas of the network.

Layer-three packets move faster through vertical cabling.

 

10. A distribution layer switch operates at which OSI layers? (Choose two.)

access

data link

network

internet

transport

 

11. To reduce cost on a new network design, administrators select switches that initially will have 100 Mbps interface modules installed but will also have the ability to support 1000 Mbps interface modules. Which of the LAN design goals are being utilized? (Choose two.)

sustainability

reliability

manageability

adaptability

functionality

scalability

 

12. Which of the following are characteristics of the core layer of the hierarchical network design model? (Choose three.)

redundant paths

high-level policy enforcement

packet manipulation

media transitions

rapid forwarding of traffic

no packet filtering

 

13. Which of the following are features of the access layer of the hierarchical network design model? (Choose two.)

inter-VLAN routing

Layer 2 filtering

Layer 3 filtering

microsegmentation

bandwidth security

 

14. Which LAN standard uses CSMA/CD as its access method?

FDDI

Ethernet

Wireless

Token Ring

 

15. A network administrator needs to increase bandwidth and reduce traffic on a network. What should be used in the access layer of the hierarchical network design model to dedicate bandwidth to users while limiting broadcast domains?

one router with multiple fast Ethernet interfaces

multiple routers with Fast Ethernet interfaces

multi-port gigabit switches

switches running VLANs

managed smart hubs

 

16. Which devices are considered acceptable for creating more connection points at the end of horizontal cable runs? (Choose two.)

hubs

bridges

switches

routers

 

17. A major network upgrade that was designed to improve speed and reliability has recently been completed. Users in one part of the network are experiencing dramatically decreased throughput and loss of connectivity. Which of the LAN design goals was not met for these users?

functionality

sustainability

adaptability

manageability

scalability

 

18. When designing a LAN, at which layer of the OSI model does the process of segmenting collision domains occur?

Layer 1

Layer 2

Layer 4

Layer 7

 

19. Which hierarchical design model layer is responsible for containing network problems to the workgroups in which they occur?

application

access

distribution

network

core

 

20. What is the primary reason for implementing security and policy routing at the distribution layer?

filtering of core switching errors

preventing policy and security issues from burdening the core layer

preventing unnecessary security policy decisions from burdening the access layer

maintaining a consistent three-layer security policy

isolating the access layer from traffic destined for other networks