Question 1

_____________ is a common standard for use by layer 2 access VPNs for encapsulation.

Accepted Answer

A)  L2TP 
B)  VPN2 
C)  Encapsule2 
D)  TCP/IP 
E)  PPP 
A)  L2TP 
B)  VPN2 
C)  Encapsule2 
D)  TCP/IP 
E)  PPP A

Question 2

WANs can connect BNs across distances that can span up to thousands of miles.

Accepted Answer

A) True 
 B)False  True

Question 3

Dynamic routing:

Accepted Answer

A)  imposes an overhead cost by increasing network traffic 
B)  decreases performance in networks which have many possible routes 
C)  decreases performance in networks with "bursty" traffic 
D)  should be used in 80 to 90 percent of total networks' capacity 
E)  is another term for static routing in WANs 
A)  imposes an overhead cost by increasing network traffic 
B)  decreases performance in networks which have many possible routes 
C)  decreases performance in networks with "bursty" traffic 
D)  should be used in 80 to 90 percent of total networks' capacity 
E)  is another term for static routing in WANs A

Question 4

To connect into a packet switched network,a network terminator is generally used.

Accepted Answer

A) True 
 B)False

Question 5

POTS always uses the came circuit paths each time a number is dialed so that quality and maximum data rate is always the same.

Accepted Answer

A) True 
 B)False

Question 6

What are the main benefits of using a VPN?

Accepted Answer

The main benefits of using a VPN (Virtua

Question 7

SONET:

Accepted Answer

A)  is a standard for optical transmission that currently operates at Terabit per second speeds 
B)  is very similar to the ITU-T standard, synchronous digital hierarchy 
C)  uses inverse multiplexing above the OC-1 level 
D)  refers to Sprint Overall Network 
E)  is not currently available, even in large cities 
A)  is a standard for optical transmission that currently operates at Terabit per second speeds 
B)  is very similar to the ITU-T standard, synchronous digital hierarchy 
C)  uses inverse multiplexing above the OC-1 level 
D)  refers to Sprint Overall Network 
E)  is not currently available, even in large cities

Question 8

Ethernet/IP packet networks:

Accepted Answer

A)  are supported with gigabit fiber optic networks in large cities 
B)  are offered only by the common carriers 
C)  use token ring layer 2 media access control 
D)  use IPX/SPX protocols 
E)  provide CIR up to a maximum of 1.544 Mbps 
A)  are supported with gigabit fiber optic networks in large cities 
B)  are offered only by the common carriers 
C)  use token ring layer 2 media access control 
D)  use IPX/SPX protocols 
E)  provide CIR up to a maximum of 1.544 Mbps

Question 9

Cloud (as in cloud architecture)means that the design for the common carrier's network comes from satellite networks above the clouds.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is not a benefit of packet switched services?

Accepted Answer

A)  The data transmission rates tend to be lower than dial-up or dedicated circuits. 
B)  You don't have to set up dedicated circuits between each end point from and to which you wish to transmit data and/or voice. 
C)  You have the flexibility to send data through a temporary circuit between two connections that will be disconnected as soon as the digital transmission is completed. 
D)  All circuits are less susceptible to a great deal of noise because they are digital. 
E)  You don't have to specify all the interconnecting services you need for your WAN when you buy the service. 
A)  The data transmission rates tend to be lower than dial-up or dedicated circuits. 
B)  You don't have to set up dedicated circuits between each end point from and to which you wish to transmit data and/or voice. 
C)  You have the flexibility to send data through a temporary circuit between two connections that will be disconnected as soon as the digital transmission is completed. 
D)  All circuits are less susceptible to a great deal of noise because they are digital. 
E)  You don't have to specify all the interconnecting services you need for your WAN when you buy the service.

Question 11

In a packet switched network,permanent virtual circuits that look very similar to a _____________ (for hardware-based dedicated circuits)move packets through the network.

Accepted Answer

A)  cloud-based ring design 
B)  cloak-based mesh design 
C)  cloud-based mesh design 
D)  common carrier ring design 
E)  common carrier bus design 
A)  cloud-based ring design 
B)  cloak-based mesh design 
C)  cloud-based mesh design 
D)  common carrier ring design 
E)  common carrier bus design

Question 12

__________ is a term that refers to the speed in converting input packets to output packets.

Accepted Answer

A)  Transfer mode 
B)  Latency 
C)  Burstiness 
D)  Cell relay 
E)  Frame relay 
A)  Transfer mode 
B)  Latency 
C)  Burstiness 
D)  Cell relay 
E)  Frame relay

Question 13

A T1 circuit provides a data rate of 1.544Mbps.

Accepted Answer

A) True 
 B)False

Question 14

A ________ geometric layout connects all computers in a closed loop,with each computer linked to the next usually with a series of point-to-point dedicated circuits.

Accepted Answer

A)  bus design 
B)  star design 
C)  full mesh design 
D)  ring design 
E)  partial mesh design 
A)  bus design 
B)  star design 
C)  full mesh design 
D)  ring design 
E)  partial mesh design

Question 15

Which of the following is not a problem with dialed circuits?

Accepted Answer

A)  Data transmission rates on dialed circuits are relatively low. 
B)  Dialed circuits may vary in quality. 
C)  Transmission rates for dialed circuits can vary with each call. 
D)  It is hard to predict if a given connection will be clear or noisy. 
E)  Use of these circuits is very simple. 
A)  Data transmission rates on dialed circuits are relatively low. 
B)  Dialed circuits may vary in quality. 
C)  Transmission rates for dialed circuits can vary with each call. 
D)  It is hard to predict if a given connection will be clear or noisy. 
E)  Use of these circuits is very simple.

Question 16

VPNs offer high security because they operate through the Internet.

Accepted Answer

A) True 
 B)False

Question 17

In ______ geometric layout for a network,every computer is connected to every other computer often by point-to-point dedicated circuits.

Accepted Answer

A)  full mesh design 
B)  ring design 
C)  star design 
D)  bus design 
E)  partial mesh design 
A)  full mesh design 
B)  ring design 
C)  star design 
D)  bus design 
E)  partial mesh design

Question 18

ATM can be scaled into faster ATM circuits

Accepted Answer

A) True 
 B)False

Question 19

Which of the following type of networks permit packets from separate messages to be interleaved?

Accepted Answer

A)  circuit switched network 
B)  dedicated circuit network 
C)  dial up circuit network 
D)  packet switched network 
E)  Fractional T-1 network 
A)  circuit switched network 
B)  dedicated circuit network 
C)  dial up circuit network 
D)  packet switched network 
E)  Fractional T-1 network

Question 20

Describe six ways in which a network manager might improve WAN service.

Accepted Answer

1. Implement Quality of Service (QoS) po

_____________ is a common standard for use by layer 2 access VPNs for encapsulation.

WANs can connect BNs across distances that can span up to thousands of miles.

Dynamic routing:

To connect into a packet switched network,a network terminator is generally used.

POTS always uses the came circuit paths each time a number is dialed so that quality and maximum data rate is always the same.

What are the main benefits of using a VPN?

SONET:

Ethernet/IP packet networks:

Cloud (as in cloud architecture)means that the design for the common carrier's network comes from satellite networks above the clouds.

Which of the following is not a benefit of packet switched services?

In a packet switched network,permanent virtual circuits that look very similar to a _____________ (for hardware-based dedicated circuits)move packets through the network.

__________ is a term that refers to the speed in converting input packets to output packets.

A T1 circuit provides a data rate of 1.544Mbps.

A ________ geometric layout connects all computers in a closed loop,with each computer linked to the next usually with a series of point-to-point dedicated circuits.

Which of the following is not a problem with dialed circuits?

VPNs offer high security because they operate through the Internet.

In ______ geometric layout for a network,every computer is connected to every other computer often by point-to-point dedicated circuits.

ATM can be scaled into faster ATM circuits

Which of the following type of networks permit packets from separate messages to be interleaved?

Describe six ways in which a network manager might improve WAN service.

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

The Internet

Network Security

Network Design

Network Management

Filters

Exam 8: Wide Area Networks

_____________ is a common standard for use by layer 2 access VPNs for encapsulation.

WANs can connect BNs across distances that can span up to thousands of miles.

Dynamic routing:

To connect into a packet switched network,a network terminator is generally used.

POTS always uses the came circuit paths each time a number is dialed so that quality and maximum data rate is always the same.

What are the main benefits of using a VPN?

SONET:

Ethernet/IP packet networks:

Cloud (as in cloud architecture)means that the design for the common carrier's network comes from satellite networks above the clouds.

Which of the following is not a benefit of packet switched services?

In a packet switched network,permanent virtual circuits that look very similar to a _____________ (for hardware-based dedicated circuits)move packets through the network.

__________ is a term that refers to the speed in converting input packets to output packets.

A T1 circuit provides a data rate of 1.544Mbps.

A ________ geometric layout connects all computers in a closed loop,with each computer linked to the next usually with a series of point-to-point dedicated circuits.

Which of the following is not a problem with dialed circuits?

VPNs offer high security because they operate through the Internet.

In ______ geometric layout for a network,every computer is connected to every other computer often by point-to-point dedicated circuits.

ATM can be scaled into faster ATM circuits

Which of the following type of networks permit packets from separate messages to be interleaved?

Describe six ways in which a network manager might improve WAN service.

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

The Internet

Network Security

Network Design

Network Management

Filters