Question 1

Full mesh design networks are more common than partial mesh design networks.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following is not a type of VPN?

Accepted Answer

A)  intranet VPN 
B)  extranet VPN 
C)  access VPN 
D)  T-1 VPN 
E)  a VPN that enables employees to access an organization's network from a remote location 
A)  intranet VPN 
B)  extranet VPN 
C)  access VPN 
D)  T-1 VPN 
E)  a VPN that enables employees to access an organization's network from a remote location

Question 3

When a person uses a regular modem to make a connection to an Internet service provider through POTS,the data travels over a:

Accepted Answer

A)  dedicated circuit 
B)  dialed circuit 
C)  ISDN circuit 
D)  VPN circuit 
E)  T-1 carrier circuit 
A)  dedicated circuit 
B)  dialed circuit 
C)  ISDN circuit 
D)  VPN circuit 
E)  T-1 carrier circuit

Question 4

The _________________ is a Canadian government agency that regulates voice and data communication.

Accepted Answer

A)  PSTN 
B)  FCC 
C)  CRTC 
D)  CSU 
E)  POTS 
A)  PSTN 
B)  FCC 
C)  CRTC 
D)  CSU 
E)  POTS

Question 5

MPLS operate at layer 4.

Accepted Answer

A) True 
 B)False

Question 6

How does a SVC differ from a PVC?

Accepted Answer

A SVC (Switched Virtual Circuit) and a P

Question 7

The committed information rate (CIR)in a permanent virtual circuit is the maximum allowable rate that the network will attempt to provide.

Accepted Answer

A) True 
 B)False

Question 8

T carrier circuits can only be used to transmit voice.

Accepted Answer

A) True 
 B)False

Question 9

Virtual private networks permit users to create permanent virtual circuits,or tunnels,through the Internet.

Accepted Answer

A) True 
 B)False

Question 10

Datagrams are connection-oriented.

Accepted Answer

A) True 
 B)False

Question 11

A ___________ is/are devices that permit a user to connect to a digital T-carrier service.

Accepted Answer

A)  modem 
B)  codec 
C)  CSU/DSU 
D)  NIC 
E)  ATM 
A)  modem 
B)  codec 
C)  CSU/DSU 
D)  NIC 
E)  ATM

Question 12

The original Integrated Services Digital Network (ISDN)is also known as mediumband ISDN.

Accepted Answer

A) True 
 B)False

Question 13

A _______ geometric layout for a WAN connects all computers to one central computer that routes messages to the appropriate computer,usually via a series of point-to-point dedicated circuits.

Accepted Answer

A)  ring design 
B)  mesh design 
C)  bus design 
D)  star design 
E)  mesh design. 
A)  ring design 
B)  mesh design 
C)  bus design 
D)  star design 
E)  mesh design.

Question 14

Explain the differences between CIR and MAR.

Accepted Answer

CIR (Committed Information Rate) and MAR

Question 15

Mesh networks:

Accepted Answer

A)  usually provide relatively long routes through the network (compared to ring networks) 
B)  require more processing by each computer in the network than in star or ring networks 
C)  do not use decentralized routing 
D)  do not have much capacity wasted by network status information 
E)  do not have many possible routes through the network to prevent one circuit from becoming overloaded 
A)  usually provide relatively long routes through the network (compared to ring networks) 
B)  require more processing by each computer in the network than in star or ring networks 
C)  do not use decentralized routing 
D)  do not have much capacity wasted by network status information 
E)  do not have many possible routes through the network to prevent one circuit from becoming overloaded

Question 16

Where does packetizing take place?

Accepted Answer

Packetizing is a process that occurs in

Question 17

A disadvantage of a star architecture is that the failure of one circuit will disrupt the entire network.

Accepted Answer

A) True 
 B)False

Question 18

OC-3072 has a data rate of

Accepted Answer

A)  159.25 Gbps 
B)  39.813 Gbps 
C)  1.544 Mbps 
D)  100 Mbps 
E)  1.244 Gbps 
A)  159.25 Gbps 
B)  39.813 Gbps 
C)  1.544 Mbps 
D)  100 Mbps 
E)  1.244 Gbps

Question 19

The performance of WANs can be improved by:

Accepted Answer

A)  upgrading the circuits between the computers 
B)  increasing the demand placed on the network 
C)  downgrading the circuits between the computers 
D)  downgrading the devices that provide access to the circuits 
E)  increasing network traffic 
A)  upgrading the circuits between the computers 
B)  increasing the demand placed on the network 
C)  downgrading the circuits between the computers 
D)  downgrading the devices that provide access to the circuits 
E)  increasing network traffic

Question 20

Primary rate interface:

Accepted Answer

A)  is typically offered only to commercial customers 
B)  provides a communications circuit with two 64 Kbps B channels, plus one D channel 
C)  is defined exactly the same way in Europe 
D)  has an upper capacity of 128Kbps 
E)  is comprised of analog circuits only 
A)  is typically offered only to commercial customers 
B)  provides a communications circuit with two 64 Kbps B channels, plus one D channel 
C)  is defined exactly the same way in Europe 
D)  has an upper capacity of 128Kbps 
E)  is comprised of analog circuits only

Full mesh design networks are more common than partial mesh design networks.

Which of the following is not a type of VPN?

When a person uses a regular modem to make a connection to an Internet service provider through POTS,the data travels over a:

The _________________ is a Canadian government agency that regulates voice and data communication.

MPLS operate at layer 4.

How does a SVC differ from a PVC?

The committed information rate (CIR)in a permanent virtual circuit is the maximum allowable rate that the network will attempt to provide.

T carrier circuits can only be used to transmit voice.

Virtual private networks permit users to create permanent virtual circuits,or tunnels,through the Internet.

Datagrams are connection-oriented.

A ___________ is/are devices that permit a user to connect to a digital T-carrier service.

The original Integrated Services Digital Network (ISDN)is also known as mediumband ISDN.

A _______ geometric layout for a WAN connects all computers to one central computer that routes messages to the appropriate computer,usually via a series of point-to-point dedicated circuits.

Explain the differences between CIR and MAR.

Mesh networks:

Where does packetizing take place?

A disadvantage of a star architecture is that the failure of one circuit will disrupt the entire network.

OC-3072 has a data rate of

The performance of WANs can be improved by:

Primary rate interface:

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

Full mesh design networks are more common than partial mesh design networks.

Which of the following is not a type of VPN?

When a person uses a regular modem to make a connection to an Internet service provider through POTS,the data travels over a:

The _________________ is a Canadian government agency that regulates voice and data communication.

MPLS operate at layer 4.

How does a SVC differ from a PVC?

The committed information rate (CIR)in a permanent virtual circuit is the maximum allowable rate that the network will attempt to provide.

T carrier circuits can only be used to transmit voice.

Virtual private networks permit users to create permanent virtual circuits,or tunnels,through the Internet.

Datagrams are connection-oriented.

A ___________ is/are devices that permit a user to connect to a digital T-carrier service.

The original Integrated Services Digital Network (ISDN)is also known as mediumband ISDN.

A _______ geometric layout for a WAN connects all computers to one central computer that routes messages to the appropriate computer,usually via a series of point-to-point dedicated circuits.

Explain the differences between CIR and MAR.

Mesh networks:

Where does packetizing take place?

A disadvantage of a star architecture is that the failure of one circuit will disrupt the entire network.

OC-3072 has a data rate of

The performance of WANs can be improved by:

Primary rate interface:

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