Question 1

A key advantage of a chassis switch is its flexibility.

Accepted Answer

A) True 
 B)False

Question 2

When might a router be useful? When might a gateway be more appropriate?

Accepted Answer

A router is a networking device that for

Question 3

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 
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

Question 4

The cable to connect BNs is usually twisted pair.

Accepted Answer

A) True 
 B)False

Question 5

The biggest drawbacks to VLANs are their_________________.

Accepted Answer

A)  cost and management complexity 
B)  size and contention 
C)  contention and cost 
D)  learning curve and contention 
E)  speed and size 
A)  cost and management complexity 
B)  size and contention 
C)  contention and cost 
D)  learning curve and contention 
E)  speed and size

Question 6

_________ move packets along the backbone based on their network layer address.

Accepted Answer

A)  Bridged backbones 
B)  Hubbed backbones 
C)  Multistation access unit backbones 
D)  Routed backbones 
E)  NIC backbones 
A)  Bridged backbones 
B)  Hubbed backbones 
C)  Multistation access unit backbones 
D)  Routed backbones 
E)  NIC backbones

Question 7

Which of the following can connect two different networks that utilize the same or different data link and network layer protocols as well as the same or different cable type?

Accepted Answer

A)  Switch 
B)  Router 
C)  Gateway 
D)  Hub 
E)  NIC 
A)  Switch 
B)  Router 
C)  Gateway 
D)  Hub 
E)  NIC

Question 8

One advantage of a routed backbone is that is requires little management.

Accepted Answer

A) True 
 B)False

Question 9

A backbone network that connects many backbone networks spanning several buildings at a single location is often called an Internet backbone.

Accepted Answer

A) True 
 B)False

Question 10

Device performance on a backbone network will not be improved by:

Accepted Answer

A)  using the same protocols in the backbone and the LANs 
B)  using static routing in low to moderate traffic conditions 
C)  ensuring that backbone devices have sufficient memory so that packets do not have to be retransmitted by the sender 
D)  translating packets from one protocol to another as they enter the BN 
E)  none of the above 
A)  using the same protocols in the backbone and the LANs 
B)  using static routing in low to moderate traffic conditions 
C)  ensuring that backbone devices have sufficient memory so that packets do not have to be retransmitted by the sender 
D)  translating packets from one protocol to another as they enter the BN 
E)  none of the above

Question 11

_________ have no backbone cable.

Accepted Answer

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

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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 
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 14

A backbone network is a high-speed network that connects many networks

Accepted Answer

A) True 
 B)False

Question 15

The distribution layer of a backbone connects LANs together.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is not true about switched backbones?

Accepted Answer

A)  performance is improved over traditional (bridged or routed) backbone networks 
B)  each connection into the switch is a separate point-to-point circuit which supports simultaneous access by the LANs connected to the switch 
C)  there are many more networking devices in a switched backbone network 
D)  if the switch fails, so does the entire backbone network 
E)  the backbone essentially exists in the switch; there is no backbone cable 
A)  performance is improved over traditional (bridged or routed) backbone networks 
B)  each connection into the switch is a separate point-to-point circuit which supports simultaneous access by the LANs connected to the switch 
C)  there are many more networking devices in a switched backbone network 
D)  if the switch fails, so does the entire backbone network 
E)  the backbone essentially exists in the switch; there is no backbone cable

A key advantage of a chassis switch is its flexibility.

When might a router be useful? When might a gateway be more appropriate?

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

The cable to connect BNs is usually twisted pair.

The biggest drawbacks to VLANs are their_________________.

_________ move packets along the backbone based on their network layer address.

Which of the following can connect two different networks that utilize the same or different data link and network layer protocols as well as the same or different cable type?

One advantage of a routed backbone is that is requires little management.

A backbone network that connects many backbone networks spanning several buildings at a single location is often called an Internet backbone.

Device performance on a backbone network will not be improved by:

_________ have no backbone cable.

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

Routers:

A backbone network is a high-speed network that connects many networks

The distribution layer of a backbone connects LANs together.

Which of the following is not true about switched backbones?

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

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Exam 7: Backbone Networks

A key advantage of a chassis switch is its flexibility.

When might a router be useful? When might a gateway be more appropriate?

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

The cable to connect BNs is usually twisted pair.

The biggest drawbacks to VLANs are their_________________.

_________ move packets along the backbone based on their network layer address.

Which of the following can connect two different networks that utilize the same or different data link and network layer protocols as well as the same or different cable type?

One advantage of a routed backbone is that is requires little management.

A backbone network that connects many backbone networks spanning several buildings at a single location is often called an Internet backbone.

Device performance on a backbone network will not be improved by:

_________ have no backbone cable.

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

Routers:

A backbone network is a high-speed network that connects many networks

The distribution layer of a backbone connects LANs together.

Which of the following is not true about switched backbones?

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters