Question 1

The OSI model is currently the most widely implemented network model used to develop and build networks of any size, including the Internet itself.

Accepted Answer

A) True 
 B)False

Question 2

An) _________ is a LAN that uses the same technologies as the Internet but is provided to invited users outside the organization who access it over the Internet.

Accepted Answer

A) WAN 
B) BN 
C) extranet 
D) intranet 
E) MAN 
A) WAN 
B) BN 
C) extranet 
D) intranet 
E) MAN

Question 3

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

Accepted Answer

A) deciding when to transmit messages over the media 
B) formatting the message by indicating where messages start and end, and which part is the address 
C) detecting and correcting any errors that have occurred in the transmission of the message 
D) specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through it 
E) controlling the physical layer by determining when to transmit 
A) deciding when to transmit messages over the media 
B) formatting the message by indicating where messages start and end, and which part is the address 
C) detecting and correcting any errors that have occurred in the transmission of the message 
D) specifying the type of connection, and the electrical signals, radio waves, or light pulses that pass through it 
E) controlling the physical layer by determining when to transmit

Question 4

The primary reason for networking standards is to:

Accepted Answer

A) simplify cost accounting for networks 
B) ensure that hardware and software produced by different vendors can work together 
C) make it more difficult to develop hardware and software that link different networks 
D) ensure that all network components of a particular network can be provided by only one vendor 
E) lock customers into buying network components from one vendor 
A) simplify cost accounting for networks 
B) ensure that hardware and software produced by different vendors can work together 
C) make it more difficult to develop hardware and software that link different networks 
D) ensure that all network components of a particular network can be provided by only one vendor 
E) lock customers into buying network components from one vendor

Question 5

Which layer of the OSI model is responsible for ensuring flow control so that the destination station does not receive more packets that it can process at any given time?

Accepted Answer

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

Question 6

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 7

What is the purpose of a data and network communication standard? Give five examples of various standards and describe what that standard is
e.g., RS 232, HTTP, etc.

Accepted Answer

The purpose of a data and network commun

Question 8

A backbone network is:

Accepted Answer

A) a high speed central network that connects other networks in a distance spanning up to several 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 200 miles with common carrier circuits. 
A) a high speed central network that connects other networks in a distance spanning up to several 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 200 miles with common carrier circuits.

Question 9

The _________ layer performs error checking which is redundant to some extent with the function of the _________ layer.

Accepted Answer

A) application, presentation 
B) physical, data link 
C) transport, data link 
D) presentation, transport 
E) network, physical 
A) application, presentation 
B) physical, data link 
C) transport, data link 
D) presentation, transport 
E) network, physical

Question 10

Which is not a function of the physical layer:

Accepted Answer

A) transmission of bits. 
B) defining the rules by which one and zeroes are transmitted. 
C) providing error-free transmission of data. 
D) providing the physical connection between sender and receiver. 
E) specifying the type of connection and type of signals, waves or pulses that pass through it. 
A) transmission of bits. 
B) defining the rules by which one and zeroes are transmitted. 
C) providing error-free transmission of data. 
D) providing the physical connection between sender and receiver. 
E) specifying the type of connection and type of signals, waves or pulses that pass through it.

Question 11

How can data communications networks affect businesses?

Accepted Answer

Data communications networks play a cruc

Question 12

Which of the following would be a standard or protocol used at the Data Link layer of the Internet or OSI model?

Accepted Answer

A) IP 
B) TCP 
C) Ethernet 
D) HTTP 
E) FTP 
A) IP 
B) TCP 
C) Ethernet 
D) HTTP 
E) FTP

Question 13

The specification stage of the de jure standardization process consists of developing nomenclature and identifying the problems to be addressed.

Accepted Answer

A) True 
 B)False

Question 14

The three stages of the de jure standardization process are ______________________.

Accepted Answer

A) specification, identification of choices and acceptance. 
B) planning, implementing and acceptance. 
C) brainstorming, identification and implementing. 
D) specification, formalization, and acceptance. 
E) none of the above. 
A) specification, identification of choices and acceptance. 
B) planning, implementing and acceptance. 
C) brainstorming, identification and implementing. 
D) specification, formalization, and acceptance. 
E) none of the above.

Question 15

When a user accesses an application via a web browser on their mobile device, this is referred to as

Accepted Answer

A) a browser-based approach 
B) a native app 
C) Internet Explorer 
D) BYOD 
A) a browser-based approach 
B) a native app 
C) Internet Explorer 
D) BYOD

Question 16

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 17

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

Accepted Answer

A) True 
 B)False

Question 18

The Internet standards organization that will allow anyone to join is __________________.

Accepted Answer

A) ANSI 
B) ISO 
C) IETF 
D) IEEE 
E) ITU-T 
A) ANSI 
B) ISO 
C) IETF 
D) IEEE 
E) ITU-T

Question 19

Which of the following is true about ISO:

Accepted Answer

A) It makes technical recommendations about data communications interfaces 
B) Its name stands for International Organization for Standardization 
C) It is based in Geneva, Switzerland 
D) It is one of the most important standards-making bodies 
E) All of the above 
A) It makes technical recommendations about data communications interfaces 
B) Its name stands for International Organization for Standardization 
C) It is based in Geneva, Switzerland 
D) It is one of the most important standards-making bodies 
E) All of the above

Question 20

At the transport layer in the Internet model, TCP is responsible for breaking large files received from the application layer into smaller messages and opening a connection to a server for transferringthem.

Accepted Answer

A) True 
 B)False

The OSI model is currently the most widely implemented network model used to develop and build networks of any size, including the Internet itself.

An) _________ is a LAN that uses the same technologies as the Internet but is provided to invited users outside the organization who access it over the Internet.

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

The primary reason for networking standards is to:

Which layer of the OSI model is responsible for ensuring flow control so that the destination station does not receive more packets that it can process at any given time?

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

What is the purpose of a data and network communication standard? Give five examples of various standards and describe what that standard is e.g., RS 232, HTTP, etc.

A backbone network is:

The _ layer performs error checking which is redundant to some extent with the function of the _ layer.

Which is not a function of the physical layer:

How can data communications networks affect businesses?

Which of the following would be a standard or protocol used at the Data Link layer of the Internet or OSI model?

The specification stage of the de jure standardization process consists of developing nomenclature and identifying the problems to be addressed.

The three stages of the de jure standardization process are ______________________.

When a user accesses an application via a web browser on their mobile device, this is referred to as

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

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

The Internet standards organization that will allow anyone to join is __________________.

Which of the following is true about ISO:

At the transport layer in the Internet model, TCP is responsible for breaking large files received from the application layer into smaller messages and opening a connection to a server for transferringthem.

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Network Design

Wired and Wireless Local Area Networks

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Management

Filters

Exam 1: Introduction to Data Communications

The OSI model is currently the most widely implemented network model used to develop and build networks of any size, including the Internet itself.

An) _________ is a LAN that uses the same technologies as the Internet but is provided to invited users outside the organization who access it over the Internet.

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

The primary reason for networking standards is to:

Which layer of the OSI model is responsible for ensuring flow control so that the destination station does not receive more packets that it can process at any given time?

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

What is the purpose of a data and network communication standard? Give five examples of various standards and describe what that standard is e.g., RS 232, HTTP, etc.

A backbone network is:

The _________ layer performs error checking which is redundant to some extent with the function of the _________ layer.

Which is not a function of the physical layer:

How can data communications networks affect businesses?

Which of the following would be a standard or protocol used at the Data Link layer of the Internet or OSI model?

The specification stage of the de jure standardization process consists of developing nomenclature and identifying the problems to be addressed.

The three stages of the de jure standardization process are ______________________.

When a user accesses an application via a web browser on their mobile device, this is referred to as

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

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

The Internet standards organization that will allow anyone to join is __________________.

Which of the following is true about ISO:

At the transport layer in the Internet model, TCP is responsible for breaking large files received from the application layer into smaller messages and opening a connection to a server for transferringthem.

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Network Design

Wired and Wireless Local Area Networks

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Management

Filters

The _ layer performs error checking which is redundant to some extent with the function of the _ layer.