Question 1

Most backbone devices are store-and-forward devices.One simple way to improve performance is to ensure that they have ________________.

Accepted Answer

A) enough ports 
B) sufficient memory 
C) twisted pair connections 
D) large wheels 
E) IEEE 802.11

Question 2

Which of the following would be least effective in improving backbone performance?

Accepted Answer

A) improving the computers in the network 
B) changing the demand placed on the network 
C) adding new keyboards to the client computers 
D) upgrading the circuits between computers 
E) improving devices in the network

Question 3

List and describe five managerial factors to consider when selecting best practices for a backbone network design.

Accepted Answer

The answer of List and describe five managerial factors to...

Question 4

Given network devices such as routers and switches, discuss three major technological trends that are helpful in explaining the differences between these devices.

Accepted Answer

The answer of Given network devices such as routers and...

Question 5

Switches and routers are devices that can connect networks to the BN.

Accepted Answer

A) True 
 B)False

Question 6

A VLAN requires the computer manager to reconfigure the physical cables to the switch if a computer is moved from one port to another port on a switch.

Accepted Answer

A) True 
 B)False

Question 7

The cable to connect BNs is usually twisted pair.

Accepted Answer

A) True 
 B)False

Question 8

Describe how a VLAN works.

Accepted Answer

The answer of Describe how a VLAN works....

Question 9

The _________ is the part of the backbone that connects the different backbones together.

Accepted Answer

A) Access layer 
B) Distribution layer 
C) Core layer 
D) Privacy layer 
E) Switched layer

Question 10

Routers:

Accepted Answer

A) require more management than switches 
B) are not susceptible to time delays 
C) use data link layer addresses to move packets that leave the subnet 
D) require only a few set of TCP/IP addresses 
E) don't need much time to establish separate subnet addresses for each LAN

Question 11

Layer-3 switches switch messages based on their data link layer address.

Accepted Answer

A) True 
 B)False

Question 12

_________ have no backbone cable.

Accepted Answer

A) Switched backbones 
B) Cloud routed backbones 
C) Hubbed backbones 
D) Bridged backbones 
E) Multistation access unit backbones

Question 13

Even though the access layer isn't part of the backbone, why is it important to the backbone?

Accepted Answer

The answer of Even though the access layer isn't part...

Question 14

Computers can be assigned to a VLAN based on the ________.

Accepted Answer

A) IEEE 802.1q standard 
B) NIC interface 
C) physical port on the switch 
D) IEEE 802.3 standard 
E) physical location of the computer

Question 15

Switches:

Accepted Answer

A) learn addresses by reading the source and destination addresses 
B) operate at the physical layer only 
C) connect two ore more network segments that use different data link protocols 
D) connect two or more network segments that use different network protocols 
E) have become more popular than layer 2 switches

Question 16

A room that contains a rack of equipment for a rack-based collapsed backbone is also called the main distribution facility MDF) or central distribution facility CDF).

Accepted Answer

A) True 
 B)False

Question 17

One difference between a switch and a router is that a router will only process messages addressed to the router, while a switch processes all messages.

Accepted Answer

A) True 
 B)False

Question 18

Using ______ capabilities, network managers can connect VOIP phones directly into a VLAN switch and configure the switch to reserve sufficient network capacity so that they will always be able to send and receive voice messages.

Accepted Answer

A)  backbone 
B)  switched 
C)  routed 
D) QoS 
E) access

Question 19

Routers can only connect the same type of cable.

Accepted Answer

A) True 
 B)False

Question 20

Circuit capacity on a backbone network will not be improved by:

Accepted Answer

A) going from 100Base-T Ethernet to 10Base-T Ethernet 
B) going from 100Base-T Ethernet to gigabit Ethernet 
C) adding additional circuits alongside heavily used ones 
D) replacing a shared circuit backbone with a switched circuit backbone 
E) providing a faster circuit to the server

Exam 8: Backbone Networks

Most backbone devices are store-and-forward devices.One simple way to improve performance is to ensure that they have ________________.

Which of the following would be least effective in improving backbone performance?

List and describe five managerial factors to consider when selecting best practices for a backbone network design.

Given network devices such as routers and switches, discuss three major technological trends that are helpful in explaining the differences between these devices.

Switches and routers are devices that can connect networks to the BN.

A VLAN requires the computer manager to reconfigure the physical cables to the switch if a computer is moved from one port to another port on a switch.

The cable to connect BNs is usually twisted pair.

Describe how a VLAN works.

The _________ is the part of the backbone that connects the different backbones together.

Routers:

Layer-3 switches switch messages based on their data link layer address.

_________ have no backbone cable.

Even though the access layer isn't part of the backbone, why is it important to the backbone?

Computers can be assigned to a VLAN based on the ________.

Switches:

A room that contains a rack of equipment for a rack-based collapsed backbone is also called the main distribution facility MDF) or central distribution facility CDF).

One difference between a switch and a router is that a router will only process messages addressed to the router, while a switch processes all messages.

Using ______ capabilities, network managers can connect VOIP phones directly into a VLAN switch and configure the switch to reserve sufficient network capacity so that they will always be able to send and receive voice messages.

Routers can only connect the same type of cable.

Circuit capacity on a backbone network will not be improved by: