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
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
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
Description : Communication between acomputer and a keyboardinvolves______________ transmission. A) simplex B) half-duplex C) full-duplex D) automatic
Last Answer : simplex
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
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
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
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
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
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
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
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
Description : A television broadcast is anexample of_______ transmission. A) simplex B) half-duplex C) full-duplex D) automatic
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
Description : Telephone networks operate in this mode. a) simplex b) half duplex c) full duplex d) semi-duplex
Last Answer : c) full duplex
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
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
Description : What is the minimum number of wires needed to send data over a serial communication link layer? a. 1 b. 2 c. 4 d. 6 e. none of above
Last Answer : 2
Description : Computer to computer communication is: (A) Simplex (B) Duplex (C) Half Duplex (D) Both Duplex and Half Duplex
Last Answer : (B) Duplex
Description : How many 8-bit characters can be transmitted per second over a 9600 baud serial communication link using asynchronous mode of transmission with one start bit, eight data bits, two stop bits, and one parity bit ? a. 600 b. 800 c. 876 d. 1200
Last Answer : b. 800
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
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.
Description : Operating method in which the transmission is made alternately in each direction of a telecommunication channel A. Semi-duplex operation B. Duplex operation C. Half-duplex operation D. Simplex operation
Last Answer : C. Half-duplex operation
Description : Compare between simplex and full duplex communication on the basis of: 1) Definition 2) Sketch
Last Answer : Compare between simplex and full duplex communication on the basis of: 1) Definition 2) Sketch
Description : Transmission sent in both directions simultaneously. A. Full duplex B. Duplex C. Half duplex D. Simplex
Last Answer : B. Duplex
Description : Compare between simplex and duplex communication
Last Answer : simplex and duplex communication :
Description : A 400 W carrier is amplitude modulated to a depth of 75%.Calculate the total power in AM wave. (i) Explain the types of noise in a communication system. (ii) Compare simplex and duplex mode of communication.
Last Answer : (i) Noise: Noise is any spurious or undesired disturbances that mask the received signal in a communication system. a) Atmospheric Noise: Atmospheric Noise is also known as static noise which is the ... remote control ExamplesWalkytalky,telephone,mobile,Radar, FAX,Pager 4
Description : How many bytes of data can be sent in 15 seconds over a serial link with baud rate of 9600 in asynchronous mode with odd parity and two stop bits in the frame? a. 10,000 bytes b. 12,000 bytes c. 15,000 bytes d. 27,000 bytes
Last Answer : b. 12,000 bytes
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
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
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)
Description : Three or more devices share a link in ________ connection. a) Unipoint b) Multipoint c) Point to point d) Simplex
Last Answer : b) Multipoint
Description : Differences between Simplex Maid and Full-Duplex Maid ?
Last Answer : Simplex mode allows data to be transmitted from one side only and data can be received from the other end only. In other words, in this case, an implementation is possible by sending or receiving data at ... . This means that in this case, Edge can send and receive data anywhere at the same time.
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
Description : High-level Data Link Control (HDLC) is a _______ protocol for communication over point-to-pointand multipoint links. A) bit-oriented B) byte-oriented C) character-oriented D) none of the above
Last Answer : bit-oriented
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
Description : Network with point-to-point link is known as (A) Fully Connected Network (B) Half Connected Network (C) Duplex Connected Network (D) None of these
Last Answer : (A) Fully Connected Network
Description : The physical layer translates logical communication requests from the ______ into hardware specific operations. a. data link layer b. network layer c. trasnport layer d. application layer
Last Answer : a. data link layer
Description : In asynchronous serial communication the physical layer provides ___________ a. start and stop signalling b. flow control c. both start & stop signalling and flow control d. only start signalling
Last Answer : c. both start & stop signalling and flow control
Description : A remote batch-processing operation in which data is solely input to a central computer would require a. telegraphp line b. simplex lines c. mixed bad channel d. all of above
Last Answer : simplex lines
Description : Most data communications involving telegraph lines use: a. simplex lines b. wideband channel c. narrowband channel d. dialed service
Last Answer : narrowband channel
Description : The synchronous modems are more costly than the asynchronous modems because a. they produce large volume of data b. they contain clock recovery circuits c. they transmit the data with stop and start bits d. they operate with a larger bandwidth e. none of above
Last Answer : they contain clock recovery circuits
Description : If a firm wantedto transmit data from 1,000 punchedcards toa remote computer, they would use a(n) A. POS terminal B. data collection terminal C. batch processingterminal D. intelligent terminal E. None of the above
Last Answer : batch processingterminal
Description : The synchronous modems are more costly than the asynchronous modemsbecause A. they produce largevolumeof data B. they contain clock recovery circuits C. they transmit thedata with stop and start bits. D. they operate witha largerbandwidth E. None of the above
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
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
Description : __________ transmit signals that carry pictures, data, music and conversations invisibly over long distances and have been the basis for almost all non-written communication and most wireless technologies used by humans today.?
Last Answer : radio waves