Description : Determine from the following the basic mode of transmission system in the public data network in which data are transferred from the source to the network and from the network to the destination in the frame format. A. Voice mode B. Asynchronous mode C. Synchronous mode D. Packet mode
Last Answer : D. Packet mode
Description : Data is directly on the transmission cable. A. Asynchronous B. Synchronous C. Baseband D. Broadband
Last Answer : C. Baseband
Description : What is the principal difference between asynchronous and synchronous transmission? A. The clocking is mixed with the data in synchronous transmission B. The pulse height are difficult C. The clocking is derived from the data in synchronous D. The bandwidth required is difficult.
Last Answer : C. The clocking is derived from the data in synchronous
Description : ECE Board Exam March 1996 What is the one principal difference between synchronous and asynchronous transmission? A. the pulse height are different B. the clocking is derived from the data in ... C. the clocking is mixed with the data in asynchronous D. the bandwidth required is different
Last Answer : B. the clocking is derived from the data in synchronous transmission
Description : Asynchronous protocol is A. message oriented B. clock oriented C. bit oriented D. character oriented
Last Answer : D. character oriented
Description : Known as the data transfer scheme that used handmaking principle. A. Synchronous data transfer scheme B. DMA data transfer scheme C. Asynchronous data transfer scheme D. Uninterrupted data transfer scheme
Last Answer : A. Synchronous data transfer scheme
Description : Slowest communications hardware product. A. Synchronous B. Asynchronous C. Ethernet D. Internet
Last Answer : B. Asynchronous
Description : Modem is referred to as ______. A. Universal asynchronous Rx/Tx B. Data communication equipment C. Universal synchronous Rx/Tx D. Data terminal equipment
Last Answer : B. Data communication equipment
Description : Synchronous modems cost more than asynchronous modem because _______. A. They have larger bandwidth B. They are larger C. The production volume is larger D. They have clock recovery circuits
Last Answer : D. They have clock recovery circuits
Description : The correctness and accuracy of the transmitted message content is A. verified by the modem B. communications system C. determined by the sender and receiver D. ensured by use of digital technique
Last Answer : C. determined by the sender and receiver
Description : In______ transmission, wesend1 start bit (0) at thebeginningand 1 or more stop bits (1s) at the end of each byte. A) synchronous B) asynchronous C) isochronous D) none of the above
Last Answer : asynchronous
Description : ___________ is a device in data transmission to interface data terminal equipment to an analogue transmission line. A. RS 232 B. Connector C. Modem D. RJ-11 plug
Last Answer : C. Modem
Description : Unwanted signal that distorts a transmitted signal is called A. analogue B. noise C. digital D. tuning
Last Answer : noise
Description : In_______transmission, astartbit and a stopbit frame a character byte. A) asynchronous serial B) synchronous serial C) parallel D) (a) and (b)
Last Answer : asynchronous serial
Description : What is the data link protocol that is used in asynchronous transmission for transferring files from one computer to another? A. A modem B. X modem C. B modem D. C modem
Last Answer : B. X modem
Description : What is the data link protocol that is used in asynchronous transmission for transferring files from one computer to another? A. A modem B. X modem C. B modem
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 : In_________ transmission, we send bits oneafter another without startor stop bits or gaps. It is the responsibilityof the receiver togroup the bits. A) synchronous B) asynchronous C) isochronous D) none of the abov
Last Answer : synchronous
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 transmission mode is used for data communication along telephone lines? (A) Parallel (B) Serial (C) Synchronous (D) Asynchronous
Last Answer : (B) Serial
Description : Compare characteristics of asynchronous and synchronous transmission mode (four points).
Last Answer : Synchronous transmission Asynchronous transmission 1. Synchronous transmission are synchronized by an external clock. 1. Asynchronous transmission are synchronized by special signals along the transmission ... for transferring a small amount of data as it is simple and economical.
Description : In_______transmission, bits aretransmittedsimultaneously,each across its own wire. A) Asynchronous serial B) Synchronous serial C) Parallel D) (a) and (b)
Last Answer : Parallel
Description : Refers to the first generation of local loop system in telecommunication technology. A. GSM B. DECT C. Analogue cellular D. TACS
Last Answer : C. Analogue cellular
Description : What is the channel bandwidth of a standard analogue telephone system? A. 300-500 Hz B. 1200 kHz C. 100-300 Hz D. 300-3400 Hz
Last Answer : D. 300-3400 Hz
Description : What is framing? A. Is concerned of synchronous system B. Refers to parallel transmission C. Is concerned with the boundaries between characters D. Is concerned with individual bits
Last Answer : C. Is concerned with the boundaries between characters
Description : What synchronization is provided so that the start and end of message is identified? A. Carrier B. Character C. Bit D. Clock
Last Answer : B. Character
Description : ECE Board Exam March 1996 One character or a sequence of characters forming a part, or the whole of a message with a specific meaning A. Signs B. Call sign C. Code D. Identifier
Last Answer : C. Code
Description : ECE Board Exam March 1996 What is the IBM’s asynchronous data link protocol designation? A. 83 B B. 8A1 / 8B1 C. 93 B D. 9A1/ 9B1
Last Answer : A. 83 B
Description : The characters making up the message in a synchronous transmission are collectively referred to as the data
Last Answer : block
Description : The vehicle through which the coded message is transmitted from the source to the receiver is called a(n) A)coder. B)decoder. C)encoder. D)relay channel. E)medium of transmission.
Last Answer : E)medium of transmission.
Description : What is the difference between synchronous generator & asynchronous generator?
Last Answer : In simple, synchronous generator supply’s both active and reactive power but asynchronous generator (induction generator) supply’s only active power and observes reactive power for magnetizing. This type of generators is used in windmills.
Description : What Is The Difference Between Synchronous Generator & Asynchronous Generator?
Last Answer : In simple, synchronous generator supply’s both active and reactive power but asynchronous generator(induction generator) supply’s only active power and observe reactive power for magnetizing. This type of generators are used in windmills.
Description : Are events synchronous of asynchronous?
Last Answer : Asynchronous
Description : Batch is synchronous or Asynchronous operations?
Last Answer : Ans: Asynchronous operations.
Description : What is the difference between synchronous generator and asynchronous generator?
Last Answer : In simple, synchronous generator supplies’ both active and reactive power but asynchronous generator (induction generator) supply’s only active power and observe reactive power for magnetizing. This type of generators is used in windmills.
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 : The ________ modeprovides synchronizationfor the entire stream of bits must. In other words, it guarantees that the data arrive ata fixed rate. A) synchronous B) asynchronous C) isochronous D) none of the above
Last Answer : isochronous
Description : In_______transmission, bits aretransmittedover asingle wire, one ata time. A) asynchronous serial B) synchronous serial C) parallel D) (a) and (b)
Last Answer : (a) and (b)
Description : SONET is a _______ TDM system. A) asynchronous B) synchronous C) statistical D) none of the above
Last Answer : none of the above
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 : Which of the following condition is usedto transmit two packets overa medium at the same time? A. Contention B. Collision C. Synchronous D. Asynchronous E. None of the above
Last Answer : Collision
Description : Choose the Protocols working in the Data Link Control Layer of OSI model below. a. ATM (Asynchronous Transfer Mode), Frame Relay b. HDLC (High Level Data Link Control), SDLC (Synchronous Data Link Control) c. ARP (Address Resolution Protocol), IEEE802.3 d. All the above
Last Answer : d. All the above
Description : The situation when both transmitter and receiver have to work in tandem is referred to as (A) parallel (B) serial (C) synchronous (D) asynchronous
Last Answer : (C) synchronous
Description : 77. type of generator are made use in wind turbines. a) Recreational generators b) Synchronous generator c) Asynchronous generator d) Alternator
Last Answer : Asynchronous generator
Description : A developer wants to process all transactions in the sequence specified by the application. Which type of Remote Function Call (RFC) implementation do you recommend? A. Background RFC (bgRFC) B. Asynchronous RFC (aRFC) C. Synchronous RFC (sRFC) D. Transactional RFC (tRFC)
Last Answer : D. Transactional RFC (tRFC)
Description : How many synchronous and asynchronous modes are there in serial port of 8096? M. Krishna Kumar/IISc. Bangalore M5/V1/June 04/1 Microprocessors and Microcontrollers/ Multiple Choice Questions Architecture of Micro ... 2, 2 respectively b) 3,1 respectively c) 1, 3 respectively d) 1, 2 respectively
Last Answer : c) 1, 3 respectively
Last Answer : Asynchronous operations.
Description : The output of a JK flipflop with asynchronous preset and clear inputs is 1'. The output can be changed to 0' with one of the following conditions. (A) By applying J = 0, K = 0 and using a clock. (B) ... (C) By applying J = 1, K = 1 and using the clock. (D) By applying a synchronous preset input.
Last Answer : Ans: C Preset state of JK Flip-Flop =1 With J=1 K=1 and the clock next state will be complement of the present state.
Description : The essential difference between traps and interrupts is (A) traps are asynchronous and interrupts are synchronous with the program (B) traps are synchronous and interrupts are asynchronous with the program ( ... synchronous and interrupts are asynchronous with the I/O devices. (D) None of these.
Last Answer : (B) traps are synchronous and interrupts are asynchronous with the program
Description : Compare synchronous and asynchronous communication.
Last Answer : Synchronous communication Asynchronous communication Single clock is used for both transmitter and receiver Two different clocks are used for both transmitter and receiver Data bits are transmitted ... Character is received at a any rate Less reliable More reliable