A communication device that combines transmissions from several I/O devices into one line is a A) Concentrator B) Modifier C) Multiplexer D) Full duplex file

A communication device that
combines transmissions from several
I/O devices into one line is a
A) Concentrator
B) Modifier
C) Multiplexer
D) Full duplex file
by

1 Answer

Answer :

C) Multiplexer
by

Related questions

A communication device that combines transmissions from several I/O devices into one line is a A) Concentrator B) Modifier C) Multiplexer D) Full duplex file

Description : A communication device that combines transmissions from several I/O devices into one line is a A) Concentrator B) Modifier C) Multiplexer D) Full duplex file

Last Answer : C) Multiplexer

A communication device that combines transmissions from several I/O devices into one line is a A) Concentrator B) Modifier C) Multiplexer D) Full duplex file

Description : A communication device that combines transmissions from several I/O devices into one line is a A) Concentrator B) Modifier C) Multiplexer D) Full duplex file

Last Answer : C) Multiplexer

A communications device that combines transmissions from several I/O devices into one line is a a. concentrator b. modifier c. multiplexer d. full-duplex line

Description : A communications device that combines transmissions from several I/O devices into one line is a a. concentrator b. modifier c. multiplexer d. full-duplex line

Last Answer : multiplexer

Which of the following does not allow multiple uses or devices to share one communication line? a. doubleplexer b. multiplexer c. concentrator d. controller

Description : Which of the following does not allow multiple uses or devices to share one communication line? a. doubleplexer b. multiplexer c. concentrator d. controller

Last Answer : concentrator

Which of the following statement is incorrect? a. The difference between synchronous and asynchronous transmission is the clocking derived from the data in synchronous transmission. b. Half duplex line is a communication line in which data can move in two directions, but not at the same time. c. Teleprocessing combines telecommunications and DP techniques in online activities d. Batch processing is the prefered processing mode for telecommunication operation.

Description : Which of the following statement is incorrect? a. The difference between synchronous and asynchronous transmission is the clocking derived from the data in synchronous transmission. b. Half ... in online activities d. Batch processing is the prefered processing mode for telecommunication operation.

Last Answer : Batch processing is the prefered processing mode for telecommunication operation.

Which of the following might be used by a company to satisfy its growing communications needs? a. front end processor b. multiplexer c. controller d. concentrator e. all of the above

Description : Which of the following might be used by a company to satisfy its growing communications needs? a. front end processor b. multiplexer c. controller d. concentrator e. all of the above

Last Answer : all of the above

Which of the following statement is incorrect? a. Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line b. HDLC is a standard synchronous communication protocol. c. RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data d. RTS/CTS is the way the terminal indicates ringing

Description : Which of the following statement is incorrect? a. Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line b. HDLC is a standard ... indicates that it is ready to accept data d. RTS/CTS is the way the terminal indicates ringing

Last Answer : RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCW indicates that it is ready to accept data

Which of the following does not allow multiple users or devices toshare onecommunications line? A. doubleplexer B. multipplexer C. concentrator D. controller E. None of the above

Description : Which of the following does not allow multiple users or devices toshare onecommunications line? A. doubleplexer B. multipplexer C. concentrator D. controller E. None of the above

Last Answer : doubleplexer

HDLC isan acronym for _______. A) High-duplex line communication B) High-leveldata link control C) Half-duplex digital link combination D) Hostdouble-level circuit

Description : HDLC isan acronym for _______. A) High-duplex line communication B) High-leveldata link control C) Half-duplex digital link combination D) Hostdouble-level circuit

Last Answer : High-leveldata link control

Data flow between two devices canoccur in a _______ way. A) simplex B) half-duplex C) full-duplex D) all of theabove

Description : Data flow between two devices canoccur in a _______ way. A) simplex B) half-duplex C) full-duplex D) all of theabove

Last Answer : all of theabove

Which data communication method is used to transmit the data over a serial communication link? a. simplex b. half-duplex c. full-duplex d. b and c e. None of above

Description : Which data communication method is used to transmit the data over a serial communication link? a. simplex b. half-duplex c. full-duplex d. b and c e. None of above

Last Answer : full-duplex

Communication between acomputer and a keyboardinvolves______________ transmission. A) simplex B) half-duplex C) full-duplex D) automatic

Description : Communication between acomputer and a keyboardinvolves______________ transmission. A) simplex B) half-duplex C) full-duplex D) automatic

Last Answer : simplex

Which of the communication modes support two way traffic but in only once direction of a time? A) Simplex B) Half-duplex C) Three - quarter's duplex D) Full duplex

Description : Which of the communication modes support two way traffic but in only once direction of a time? A) Simplex B) Half-duplex C) Three - quarter's duplex D) Full duplex

Last Answer : B) Half-duplex

Which mode of Communication occurs between a computer and a keyboard. a. Automatic b. Half-duplex c. Full-duplex d. Simplex

Description : Which mode of Communication occurs between a computer and a keyboard. a. Automatic b. Half-duplex c. Full-duplex d. Simplex

Last Answer : d. Simplex

A communication between a computer and a keyboard involves ____________ transmission. a) simplex b) half duplex c) full duplex d) semi-duplex

Description : A communication between a computer and a keyboard involves ____________ transmission. a) simplex b) half duplex c) full duplex d) semi-duplex

Last Answer : a) simplex

An STS multiplexer is a ______ device. A) one-layer B) two-layer C) three-layer D) four-layer

Description : An STS multiplexer is a ______ device. A) one-layer B) two-layer C) three-layer D) four-layer

Last Answer : two-layer

Which of the following communication modes support two-way traffic but in only one direction at a time? a. simplex b. half duplex c. three-quarters duplex d. all of the above e. none of the above

Description : Which of the following communication modes support two-way traffic but in only one direction at a time? a. simplex b. half duplex c. three-quarters duplex d. all of the above e. none of the above

Last Answer : half duplex

The communication modethat supports two-way traffic but only one direction at atime is A. simplex B. duplex C. half duplex D. multiplex E. None of the above

Description : The communication modethat supports two-way traffic but only one direction at atime is A. simplex B. duplex C. half duplex D. multiplex E. None of the above

Last Answer : half duplex

A multiplexer combines four 100-Kbps channels using a time slot of 2 bits. What is the bit rate? (A) 100 Kbps (B) 200 Kbps (C) 400 kbps (D) 1000 Kbps

Description : A multiplexer combines four 100-Kbps channels using a time slot of 2 bits. What is the bit rate? (A) 100 Kbps (B) 200 Kbps (C) 400 kbps (D) 1000 Kbps

Last Answer : (C) 400 kbps

In ATM, the _______layeraccepts transmissions from upper-layer servicesand maps them into ATM cells. A) physical B) ATM C) AAL D) none of the above

Description : In ATM, the _______layeraccepts transmissions from upper-layer servicesand maps them into ATM cells. A) physical B) ATM C) AAL D) none of the above

Last Answer : AAL

Which of the following is not a disadvantage of wireless LAN? A. Slower data transmission B. higher error rate C. interference of transmissions from different computers D. All of theabove

Description : Which of the following is not a disadvantage of wireless LAN? A. Slower data transmission B. higher error rate C. interference of transmissions from different computers D. All of theabove

Last Answer : All of theabove

Consider a link with packet loss probability of 0.2. What is the expected number of transmissions it would take to transfer 200 packets given that the stop and wait protocol is used? a. 125 b. 250 c. 225

Description : Consider a link with packet loss probability of 0.2. What is the expected number of transmissions it would take to transfer 200 packets given that the stop and wait protocol is used? a. 125 b. 250 c. 225

Last Answer : b. 250

If delaysare recorded as 10 bit numbers in a 50 router network, and delay vectorsare exchanged twicea second,how muchbandwidth per fill duplex line is occupied by the distributedrouting algorithm? A. 500 bps B. 1500 bps C. 5 bps D. 1000 bps

Description : If delaysare recorded as 10 bit numbers in a 50 router network, and delay vectorsare exchanged twicea second,how muchbandwidth per fill duplex line is occupied by the distributedrouting algorithm? A. 500 bps B. 1500 bps C. 5 bps D. 1000 bps

Last Answer : 1000 bps

Communiction circuits that transmit data in both directions but not at the same time are operating in a. a simplex mode b. a half duplex mode c. a full duplex mode d. an asynchronous mode

Description : Communiction circuits that transmit data in both directions but not at the same time are operating in a. a simplex mode b. a half duplex mode c. a full duplex mode d. an asynchronous mode

Last Answer : a half duplex mode

Which of the following communications lines is best suited to interactive processing applications? a. narrow band channel b. simplex lines c. full duplex lines d. mixed band channels

Description : Which of the following communications lines is best suited to interactive processing applications? a. narrow band channel b. simplex lines c. full duplex lines d. mixed band channels

Last Answer : full duplex lines

The interactive transmission of data within a time sharing system may be best suited to a. simplex lines b. half-duplex lines c. full duplex lines d. biflex-lines

Description : The interactive transmission of data within a time sharing system may be best suited to a. simplex lines b. half-duplex lines c. full duplex lines d. biflex-lines

Last Answer : half-duplex lines

Gigabit Ethernet access methods include _______ mode. A) half-duplex B) full-duplex C) both (a) and (b) D) neither (a) nor (b)

Description : Gigabit Ethernet access methods include _______ mode. A) half-duplex B) full-duplex C) both (a) and (b) D) neither (a) nor (b)

Last Answer : both (a) and (b)

In _______ transmission, the channel capacity is shared byboth communicatingdevices at all times. A) simplex B) half-duplex C) full-duplex D) half-simplex

Description : In _______ transmission, the channel capacity is shared byboth communicatingdevices at all times. A) simplex B) half-duplex C) full-duplex D) half-simplex

Last Answer : full-duplex

A television broadcast is anexample of_______ transmission. A) simplex B) half-duplex C) full-duplex D) automatic

Description : A television broadcast is anexample of_______ transmission. A) simplex B) half-duplex C) full-duplex D) automatic

Last Answer : simplex

Consider the following statements. I. TCP connections are full duplex. II. TCP has no option for selective acknowledgment III. TCP connections are message streams. a. Only I is correct b. Only I and II are correct c. Only II and III are correct d. All of I, II and III are correct

Description : Consider the following statements. I. TCP connections are full duplex. II. TCP has no option for selective acknowledgment III. TCP connections are message streams. a. Only I is correct b. Only I and II are correct c. Only II and III are correct d. All of I, II and III are correct

Last Answer : a. Only I is correct

Which is not the legitimate transmission directions listed here? a. Simplex b. Half Duplex c. Full Duplex d. Double Duplex

Description : Which is not the legitimate transmission directions listed here? a. Simplex b. Half Duplex c. Full Duplex d. Double Duplex

Last Answer : d. Double Duplex

Telephone networks operate in this mode. a) simplex b) half duplex c) full duplex d) semi-duplex

Description : Telephone networks operate in this mode. a) simplex b) half duplex c) full duplex d) semi-duplex

Last Answer : c) full duplex

A transmission mode that can transmit data in both the directions but transmits in only one direction at a time. a) simplex b) half duplex c) full duplex d) semi-duplex

Description : A transmission mode that can transmit data in both the directions but transmits in only one direction at a time. a) simplex b) half duplex c) full duplex d) semi-duplex

Last Answer : b) half duplex

An add/drop multiplexer isa ______device. A) one-layerB)two-layerC)three-layerD)four-layer

Description : An add/drop multiplexer isa ______device. A) one-layer B) two-layer C) three-layer D) four-layer

Last Answer : three-layer

_______ allow insertion and extraction of signals. A) regenerators B) ADMs C) STS multiplexer/demultiplexers D) none of the above

Description : _______ allow insertion and extraction of signals. A) regenerators B) ADMs C) STS multiplexer/demultiplexers D) none of the above

Last Answer : regenerators

A ________ is a repeater. A) regenerator B) ADM C) STS multiplexer/demultiplexer D) none of the above

Description : A ________ is a repeater. A) regenerator B) ADM C) STS multiplexer/demultiplexer D) none of the above

Last Answer : STS multiplexer/demultiplexer

Which network component/s is/are involved in the Presentation layer of an OSI model? a. Gateway b. Multiplexer & Oscilloscope c. Amplifier & Hub d. All of the above

Description : Which network component/s is/are involved in the Presentation layer of an OSI model? a. Gateway b. Multiplexer & Oscilloscope c. Amplifier & Hub d. All of the above

Last Answer : a. Gateway

There are 10 users plugged into a hub running 10Mbps half-duplex.and a serverconnected to the switch running 10Mbps half- duplex as well. Find the bandwidth does each host have to the server? a. 100 kbps b. 1 Mbps c. 2 Mbps d. 10 Mbps

Description : There are 10 users plugged into a hub running 10Mbps half-duplex.and a server connected to the switch running 10Mbps half- duplex as well. Find the bandwidth does each host have to the server? a. 100 kbps b. 1 Mbps c. 2 Mbps d. 10 Mbps

Last Answer : d. 10 Mbps

The transmission mode which allows both communicating devices to transmit and receive data simultaneously is: a) Full Duplex b) Simplex c) Half Duplex d) Simple Complex e) None of These

Description : The transmission mode which allows both communicating devices to transmit and receive data simultaneously is: a) Full Duplex b) Simplex c) Half Duplex d) Simple Complex e) None of These

Last Answer : a) Full Duplex

The functions of a Logical Link Layer (LLC) are a. Error control b. Flow control c. Creating and managing the communication link between two devices with the help of the Transport layer. d. All the above

Description : The functions of a Logical Link Layer (LLC) are a. Error control b. Flow control c. Creating and managing the communication link between two devices with the help of the Transport layer. d. All the above

Last Answer : d. All the above

The functions of a Logical Link Layer (LLC) are ___. A. Error control B. Flow control C. Creating and managing the communication link between two devices with the help of the Transport layer. D. All the above

Description : The functions of a Logical Link Layer (LLC) are ___. A. Error control B. Flow control C. Creating and managing the communication link between two devices with the help of the Transport layer. D. All the above

Last Answer : D. All the above

The device that converts digital signals to analog signals at the start of long distance transmissions is (1) peripheral (2) modem (3) telephone (4) antenna

Description : The device that converts digital signals to analog signals at the start of long distance transmissions is (1) peripheral (2) modem (3) telephone (4) antenna

Last Answer : modem

The term 'duplex' refers to theability of the data receiving stations toecho back aconfirming messageto the sender. Infull duplex data transmission, both the sender and the receiver A. cannot talk at once B. can receive and send datasimultaneously C. can sendor receive data one ata time D. can do one way data transmission only E. None of the above

Description : The term 'duplex' refers to theability of the data receiving stations toecho back aconfirming messageto the sender. Infull duplex data transmission, both the sender and the receiver A. cannot talk at once B. can ... data one ata time D. can do one way data transmission only E. None of the above

Last Answer : can do one way data transmission only

What are the two types of duplex?

Description : What are the two types of duplex?

Last Answer : Full duplex-two bit streams can be simultaneously transmitted over the links at the same time, one going in each direction. Half duplex-it supports data flowing in only one direction at a time.

A ________ switch combines crossbar switches inseveral (normally three) stages. A) multistage B) multiple crossbar C) multiple path D) none of the above

Description : A ________ switch combines crossbar switches inseveral (normally three) stages. A) multistage B) multiple crossbar C) multiple path D) none of the above

Last Answer : multistag

A ________ switch combines space-division and time-division technologies totake advantage of the bestof both. A) TST B) SSS C) TTT D) none of the above

Description : A ________ switch combines space-division and time-division technologies totake advantage of the bestof both. A) TST B) SSS C) TTT D) none of the above

Last Answer : TST

State weather the following statement is true or false for ISDN – Integrated Services Digital Network ISDN is an effort to standardize subscriber services, provide user/network interfaces 2). the goal of ISDN is to form a Local area network that provides Peer-to-Peer connectivity over digital media 3). It is a set of protocols that combines digital telephony and data transport services A. 1. True, 2. false, 3. true B. 1. true, 2. false, 3. false C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false

Description : State weather the following statement is true or false for ISDN - Integrated Services Digital Network ISDN is an effort to standardize subscriber services, provide user/network interfaces 2). the goal of ISDN is to form a Local ... C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false

Last Answer : A. 1. True, 2. false, 3. true

In mode, the communication channel is used in both directions at the same time? A) Full-duplex B) Simplex C) Half-duplex D) None of the above

Description : In mode, the communication channel is used in both directions at the same time? A) Full-duplex B) Simplex C) Half-duplex D) None of the above

Last Answer : Answer : A

Which of the communication modes support two way traffic but in only once direction of a time? A) Simplex B) Half-duplex C) Three - quarter's duplex D) Full duplex

Description : Which of the communication modes support two way traffic but in only once direction of a time? A) Simplex B) Half-duplex C) Three - quarter's duplex D) Full duplex

Last Answer : B) Half-duplex

Which of the communication modes support two way traffic but in only once direction of a time? A) Simplex B) Half-duplex C) Three - quarter's duplex D) Full duplex

Description : Which of the communication modes support two way traffic but in only once direction of a time? A) Simplex B) Half-duplex C) Three - quarter's duplex D) Full duplex

Last Answer : B) Half-duplex