Question 1

The Telecommunications Act of 1996 now permits the RBOCs to provide long distance outside the region in which they provide local telephone services.

Accepted Answer

A) True 
 B)False

Question 2

In 1983,the Internet was split into two parts,one dedicated solely to the military and one dedicated to university research centers.The two parts were called:

Accepted Answer

A)  Intranet and Extranet 
B)  BITNET and NSFNET 
C)  Milnet and Internet 
D)  ARPANET and Milnet 
E)  none of the above 
A)  Intranet and Extranet 
B)  BITNET and NSFNET 
C)  Milnet and Internet 
D)  ARPANET and Milnet 
E)  none of the above

Question 3

A(n)_____________ is a company that provides a wide range of standardized information services,in the same manner that electric companies provide electricity.

Accepted Answer

A)  file server 
B)  host 
C)  information utility 
D)  RBOC 
E)  IXC 
A)  file server 
B)  host 
C)  information utility 
D)  RBOC 
E)  IXC

Question 4

Which layer of the OSI model is responsible for ensuring that all packets sent are received by the destination station by dealing with end-to-end issues?

Accepted Answer

A)  presentation Layer 
B)  transport Layer 
C)  physical Layer 
D)  session Layer 
E)  application Layer 
A)  presentation Layer 
B)  transport Layer 
C)  physical Layer 
D)  session Layer 
E)  application Layer

Question 5

A _____________ is the input-output hardware device at the user's end of a communication circuit.

Accepted Answer

A)  Server 
B)  Circuit 
C)  Client 
D)  Host 
A)  Server 
B)  Circuit 
C)  Client 
D)  Host

Question 6

Modern (1990s and beyond)data communication networks are characterized by:

Accepted Answer

A)  decks of punch cards 
B)  online terminals for batch processing 
C)  isolated (stand-alone) personal computers 
D)  batch I/O devices 
E)  distributed systems that rely heavily on networking 
A)  decks of punch cards 
B)  online terminals for batch processing 
C)  isolated (stand-alone) personal computers 
D)  batch I/O devices 
E)  distributed systems that rely heavily on networking

Question 7

Which of the following is not a data link layer standard?

Accepted Answer

A)  HTTP 
B)  Ethernet 
C)  T1 
D)  PPP 
E)  Frame Relay 
A)  HTTP 
B)  Ethernet 
C)  T1 
D)  PPP 
E)  Frame Relay

Question 8

A ___________ is similar to an intranet in that it uses Internet technologies,but is developed for users outside the organization.

Accepted Answer

A)  Internet 
B)  Usenet 
C)  Wide Area Network 
D)  Intranet 
A)  Internet 
B)  Usenet 
C)  Wide Area Network 
D)  Intranet

Question 9

Which of the following statements about the U.S.telephone marketplace is not true,as of the Telecommunications Act of 1996?

Accepted Answer

A)  Quickly, the local telephone industry in the U.S. went from a highly regulated monopoly to open competition. 
B)  RBOCs may not provide long distance service outside the region in which they provide local telephone services. 
C)  The common carriers may provide local services to customers. 
D)  RBOCs can provide long distance services inside their region if at least one viable competitor for local telephone services exists. 
E)  The Telecommunications Act replaced the 1984 consent decree under which AT&T was broken up. 
A)  Quickly, the local telephone industry in the U.S. went from a highly regulated monopoly to open competition. 
B)  RBOCs may not provide long distance service outside the region in which they provide local telephone services. 
C)  The common carriers may provide local services to customers. 
D)  RBOCs can provide long distance services inside their region if at least one viable competitor for local telephone services exists. 
E)  The Telecommunications Act replaced the 1984 consent decree under which AT&T was broken up.

Question 10

Which of the following is a function of the transport layer?

Accepted Answer

A)  linking the physical layer to the network layer 
B)  formatting messages by indicating where they start and end 
C)  deciding which route the message should take 
D)  breaking long messages into several smaller messages 
E)  specifying the type of connection and the electrical signals, radio waves, or light pulses that pass through it 
A)  linking the physical layer to the network layer 
B)  formatting messages by indicating where they start and end 
C)  deciding which route the message should take 
D)  breaking long messages into several smaller messages 
E)  specifying the type of connection and the electrical signals, radio waves, or light pulses that pass through it

Question 11

The _________ layer is responsible for routing of messages from the sender to the final destination.

Accepted Answer

A)  data communication layer 
B)  resident layer 
C)  application layer 
D)  network layer 
E)  physical layer 
A)  data communication layer 
B)  resident layer 
C)  application layer 
D)  network layer 
E)  physical layer

Question 12

Taken together,the physical and data link layers are called the____________________.

Accepted Answer

A)  Internet layer 
B)  Hardware layer 
C)  Internetwork layer 
D)  Application layer 
A)  Internet layer 
B)  Hardware layer 
C)  Internetwork layer 
D)  Application layer

Question 13

Describe two important data communications standards-making bodies.How do they differ?

Accepted Answer

Two important data communications standa

Question 14

Pervasive networking means that:

Accepted Answer

A)  the five-layer network model will be used to design all networks 
B)  all networks of the future will be developed by a monopolistic organization 
C)  the cost of computers will be higher in the future 
D)  virtually all computers will be networked in some way to other computers and be able to transmit data at staggeringly fast rates 
E)  cable companies will offer more than 150 network selections for viewers 
A)  the five-layer network model will be used to design all networks 
B)  all networks of the future will be developed by a monopolistic organization 
C)  the cost of computers will be higher in the future 
D)  virtually all computers will be networked in some way to other computers and be able to transmit data at staggeringly fast rates 
E)  cable companies will offer more than 150 network selections for viewers

Question 15

The high bandwidth requirements (high communications needs)for video have slowed its integration into computer networks.

Accepted Answer

A) True 
 B)False

Question 16

A local area network is:

Accepted Answer

A)  a large central network that connects other networks in a distance spanning exactly 5 miles. 
B)  a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information. 
C)  a network spanning a geographical area that usually encompasses a city or county area (3 to 30 miles). 
D)  a network spanning a large geographical area (up to 1000s of miles). 
E)  a network spanning exactly 10 miles with common carrier circuits. 
A)  a large central network that connects other networks in a distance spanning exactly 5 miles. 
B)  a group of personal computers or terminals located in the same general area and connected by a common cable (communication circuit) so they can exchange information. 
C)  a network spanning a geographical area that usually encompasses a city or county area (3 to 30 miles). 
D)  a network spanning a large geographical area (up to 1000s of miles). 
E)  a network spanning exactly 10 miles with common carrier circuits.

Question 17

Why are standards important?

Accepted Answer

Standards are important for a multitude

Question 18

How can data communication networks affect businesses?

Accepted Answer

Data communication networks are the back

Question 19

Discuss the importance of understanding the progression of communications systems from the 1800s to the present.Describe the 1/1/84 divestiture of AT&T and the Telecommunications Act of 1996,and the effects of these two significant governmental actions on data networking.

Accepted Answer

Understanding the progression of communi

Question 20

A car manufacturer may give access to certain portions of its network to some of its suppliers via Internet.This is an example of an Extranet.

Accepted Answer

A) True 
 B)False

The Telecommunications Act of 1996 now permits the RBOCs to provide long distance outside the region in which they provide local telephone services.

In 1983,the Internet was split into two parts,one dedicated solely to the military and one dedicated to university research centers.The two parts were called:

A(n)_____________ is a company that provides a wide range of standardized information services,in the same manner that electric companies provide electricity.

Which layer of the OSI model is responsible for ensuring that all packets sent are received by the destination station by dealing with end-to-end issues?

A _____________ is the input-output hardware device at the user's end of a communication circuit.

Modern (1990s and beyond)data communication networks are characterized by:

Which of the following is not a data link layer standard?

A ___________ is similar to an intranet in that it uses Internet technologies,but is developed for users outside the organization.

Which of the following statements about the U.S.telephone marketplace is not true,as of the Telecommunications Act of 1996?

Which of the following is a function of the transport layer?

The _________ layer is responsible for routing of messages from the sender to the final destination.

Taken together,the physical and data link layers are called the____________________.

Describe two important data communications standards-making bodies.How do they differ?

Pervasive networking means that:

The high bandwidth requirements (high communications needs)for video have slowed its integration into computer networks.

A local area network is:

Why are standards important?

How can data communication networks affect businesses?

Discuss the importance of understanding the progression of communications systems from the 1800s to the present.Describe the 1/1/84 divestiture of AT&T and the Telecommunications Act of 1996,and the effects of these two significant governmental actions on data networking.

A car manufacturer may give access to certain portions of its network to some of its suppliers via Internet.This is an example of an Extranet.

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters

Exam 1: Introduction to Data Communications

The Telecommunications Act of 1996 now permits the RBOCs to provide long distance outside the region in which they provide local telephone services.

In 1983,the Internet was split into two parts,one dedicated solely to the military and one dedicated to university research centers.The two parts were called:

A(n)_____________ is a company that provides a wide range of standardized information services,in the same manner that electric companies provide electricity.

Which layer of the OSI model is responsible for ensuring that all packets sent are received by the destination station by dealing with end-to-end issues?

A _____________ is the input-output hardware device at the user's end of a communication circuit.

Modern (1990s and beyond)data communication networks are characterized by:

Which of the following is not a data link layer standard?

A ___________ is similar to an intranet in that it uses Internet technologies,but is developed for users outside the organization.

Which of the following statements about the U.S.telephone marketplace is not true,as of the Telecommunications Act of 1996?

Which of the following is a function of the transport layer?

The _________ layer is responsible for routing of messages from the sender to the final destination.

Taken together,the physical and data link layers are called the____________________.

Describe two important data communications standards-making bodies.How do they differ?

Pervasive networking means that:

The high bandwidth requirements (high communications needs)for video have slowed its integration into computer networks.

A local area network is:

Why are standards important?

How can data communication networks affect businesses?

Discuss the importance of understanding the progression of communications systems from the 1800s to the present.Describe the 1/1/84 divestiture of AT&T and the Telecommunications Act of 1996,and the effects of these two significant governmental actions on data networking.

A car manufacturer may give access to certain portions of its network to some of its suppliers via Internet.This is an example of an Extranet.

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Wired and Wireless LANs

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters