Question 1

A multiplexing technique where multiple users use distinct time slots such that the transmitted bits are shared by all users is called

Accepted Answer

A) frequency division multiplexing. 
B) time division multiplexing. 
C) separate channel multiplexing. 
D) common channel multiplexing. 
E) separate frequency multiplexing. 
A) frequency division multiplexing. 
B) time division multiplexing. 
C) separate channel multiplexing. 
D) common channel multiplexing. 
E) separate frequency multiplexing. B

Question 2

A multiplexing technique where multiple users use distinct carrier frequencies separated such that the modulated signals do not overlap is called

Accepted Answer

A) frequency division multiplexing. 
B) time division multiplexing. 
C) separate channel multiplexing. 
D) common channel multiplexing. 
E) separate frequency multiplexing. 
A) frequency division multiplexing. 
B) time division multiplexing. 
C) separate channel multiplexing. 
D) common channel multiplexing. 
E) separate frequency multiplexing. A

Question 3

Provide the full name for each of the following acronyms
ARQ
CRC
HDLC
FCS
LLC

Accepted Answer

ARQ Automatic Repeat reQuest
CRC Cyclic Redundancy Check
HDLC High-level Data Link Control
FCS Frame Check Sequence
LLC Logical Link Control

Question 4

Sliding window is one form of error control.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is NOT a common component of an error control process?

Accepted Answer

A) Error detection 
B) Positive acknowledgement 
C) Retransmission after timeout 
D) Negative acknowledgment and retransmission 
E) Damaged frame. 
A) Error detection 
B) Positive acknowledgement 
C) Retransmission after timeout 
D) Negative acknowledgment and retransmission 
E) Damaged frame.

Question 6

The term SONET corresponds to

Accepted Answer

A) special operations networking environment testing. 
B) synchronous optical networking environment testing. 
C) synchronous operational networking. 
D) system optical networking. 
E) synchronous optical network. 
A) special operations networking environment testing. 
B) synchronous optical networking environment testing. 
C) synchronous operational networking. 
D) system optical networking. 
E) synchronous optical network.

Question 7

The two commonly used forms of ARQ are "stop-and-wait" and "go back N".

Accepted Answer

A) True 
 B)False

Question 8

The types of frames used in HDLC are

Accepted Answer

A) Exchanged information,information,and unnumbered. 
B) Information,supervisory,and unnumbered. 
C) Information,supervisory,and control. 
D) Information,supervisory,and exchange. 
E) Supervisory,unnumbered,and set synchronous. 
A) Exchanged information,information,and unnumbered. 
B) Information,supervisory,and unnumbered. 
C) Information,supervisory,and control. 
D) Information,supervisory,and exchange. 
E) Supervisory,unnumbered,and set synchronous.

Question 9

Which of the following is NOT one of the example applications of T-1 leased transmission facilities?

Accepted Answer

A) Cable television systems 
B) Private data networks 
C) Video teleconferencing 
D) Internet access 
E) High-speed digital facsimile 
A) Cable television systems 
B) Private data networks 
C) Video teleconferencing 
D) Internet access 
E) High-speed digital facsimile

Question 10

HDLC uses CRC for error detection.

Accepted Answer

A) True 
 B)False

Question 11

Present-day television,both broadcast and cable employ

Accepted Answer

A) frequency division multiplexing. 
B) time division multiplexing. 
C) separate channel multiplexing. 
D) common channel multiplexing. 
E) separate frequency multiplexing. 
A) frequency division multiplexing. 
B) time division multiplexing. 
C) separate channel multiplexing. 
D) common channel multiplexing. 
E) separate frequency multiplexing.

Question 12

Which of the following is a generic term that describes sharing of a communications channel by multiple communicating stations?

Accepted Answer

A) HDLC 
B) Multiprogramming 
C) Multi-access channels 
D) Digital channels 
E) Multiplexing 
A) HDLC 
B) Multiprogramming 
C) Multi-access channels 
D) Digital channels 
E) Multiplexing

Question 13

Stop-and-wait is the simplest form of flow control.

Accepted Answer

A) True 
 B)False

Question 14

Data link control protocols are typically used only in asynchronous communication.

Accepted Answer

A) True 
 B)False

Question 15

SONET/SDH signal payload speeds range

Accepted Answer

A) from 902 Mbps to 1.53 Gbps. 
B) from 50 Mbps to 1.53 Gbps. 
C) from 50 Mbps to 1.53 Gbps 
D) from 1.80 Mbps to 2.4 Mbps 
E) from 1.8 Mbps to 153 Gbps 
A) from 902 Mbps to 1.53 Gbps. 
B) from 50 Mbps to 1.53 Gbps. 
C) from 50 Mbps to 1.53 Gbps 
D) from 1.80 Mbps to 2.4 Mbps 
E) from 1.8 Mbps to 153 Gbps

A multiplexing technique where multiple users use distinct time slots such that the transmitted bits are shared by all users is called

A multiplexing technique where multiple users use distinct carrier frequencies separated such that the modulated signals do not overlap is called

Provide the full name for each of the following acronyms ARQ CRC HDLC FCS LLC

Sliding window is one form of error control.

Which of the following is NOT a common component of an error control process?

The term SONET corresponds to

The two commonly used forms of ARQ are "stop-and-wait" and "go back N".

The types of frames used in HDLC are

Which of the following is NOT one of the example applications of T-1 leased transmission facilities?

HDLC uses CRC for error detection.

Present-day television,both broadcast and cable employ

Which of the following is a generic term that describes sharing of a communications channel by multiple communicating stations?

Stop-and-wait is the simplest form of flow control.

Data link control protocols are typically used only in asynchronous communication.

SONET/SDH signal payload speeds range

Introduction

Business Information

Distributed Data Processing

Internet History and Architecture

Tcp/ip and Osi

Clientserver and Intranet Computing

Internet-Based Applications

Internet Operation

Lan Architecture and Protocols

Ethernet and Fibre Channel

Wireless Lans

Circuit Switching and Packet Switching

Frame Relay and Atm

Wireless Wans

Data Transmission

Data Communication Fundamentals

Computer and Network Security Threats

Computer and Network Security Techniques

Network Management

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Exam 17: Data Link Control and Multiplexing

A multiplexing technique where multiple users use distinct time slots such that the transmitted bits are shared by all users is called

A multiplexing technique where multiple users use distinct carrier frequencies separated such that the modulated signals do not overlap is called

Provide the full name for each of the following acronyms ARQ CRC HDLC FCS LLC

Sliding window is one form of error control.

Which of the following is NOT a common component of an error control process?

The term SONET corresponds to

The two commonly used forms of ARQ are "stop-and-wait" and "go back N".

The types of frames used in HDLC are

Which of the following is NOT one of the example applications of T-1 leased transmission facilities?

HDLC uses CRC for error detection.

Present-day television,both broadcast and cable employ

Which of the following is a generic term that describes sharing of a communications channel by multiple communicating stations?

Stop-and-wait is the simplest form of flow control.

Data link control protocols are typically used only in asynchronous communication.

SONET/SDH signal payload speeds range

Introduction

Business Information

Distributed Data Processing

Internet History and Architecture

Tcp/ip and Osi

Clientserver and Intranet Computing

Internet-Based Applications

Internet Operation

Lan Architecture and Protocols

Ethernet and Fibre Channel

Wireless Lans

Circuit Switching and Packet Switching

Frame Relay and Atm

Wireless Wans

Data Transmission

Data Communication Fundamentals

Computer and Network Security Threats

Computer and Network Security Techniques

Network Management

Filters