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ECAT Computer Science Online Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Which of the following is associated with second generations computers. | transistors megnetic core memory high level procedural language all of the above |
| 2 | A computer can't do anything without. | program Input device Output device VDU |
| 3 | The basic operation performed by a computer is. | arithmetic operations logic operations storage and retrieval operations all of the above |
| 4 | The most powerful computers are. |
super minis super micros super mainframe super computers |
| 5 | Raw data is processed by the computer into. | number sheets updates paragraphs information |
| 6 | A computer has very high speed, accuracy and reliability . Its intelligent quotient could be of the order of | 0 10 15 20 |
| 7 | The computer programe consists mainly the following number of parts | 2 3 4 5 |
| 8 | A computer is capable of performing almost any task, provided that it can be. | coded memorized analyzed reduced to a series of logical steps |
| 9 | A computer drives its basic strength from | speed accuracy memory all of above |
| 10 | A computer can be defined as an electronic device that can (choose the most precise definition) | carry out arithmetic operation carry out logical operation do complicated calculation accept or process data by implementing sequentially a set of stored instructions |
| 11 | Following devices are used in simplex mode | Radio Television a , b Multiplexers |
| 12 | The ___________ is the physical path over which a message travels. | Single Double Protocol Medium |
| 13 | The encoding scheme of data represent as | EBCDIC code ASCII code Unicode All of the above |
| 14 | Communication between a computer and keyboard involes __________ transmission. | Half duplex Full-duplex Simplex Automatic |
| 15 | Which of the following cable is comprised of two separate insulated copper wires that are twisted? | Fiber optics Twisted pair wire coax Submarine |
| 16 | All of the following are Guided Communication media except | Fiber-Optic Cable Wire Cable Coaxial Cable Satellite-based , Microwave communication |
| 17 | Data is transmitted character by character in | Synchronous mode Asynchronous mode Remote communication Satellite mode |
| 18 | The voice channel has a bandwidth of | 0 - 2 KHz 0 - 4 KHz 5 - 10 KHz 10 - 20 KHz |
| 19 | Microwave and Communication Satellite are example of | Guided Un-guided Simplex Router |
| 20 | Data us transmitted block by block in | Asynchronous mode Synchronous mode Communication mode Satellite mode |
| 21 | Analog signal is measured in | Volts Pulses Hertz WATTS |
| 22 | An arrangement in which data is transmitted in both directions at a time is called | Simplex Full duplex Half duplex Multi-duplex |
| 23 | To send data, instruction and information you need a | Sending device Receiving device Channel device Communication signal |
| 24 | A set raw, unprocessed facts, figures and symbols is called | Information Data Instruction Code |
| 25 | Frequency is measured in | Channels Hertz Bandwidth Baud |
| 26 | Data transmission speed of wire pair is | 9600 bps 9500 bps 3600 bps 3500 bps |
| 27 | Internal modem is connected to | DCE cable RJ 45 cable RS 232 serial port DTE cable |
| 28 | Coaxial and fiber cables are examples of media | Guided Router Un-guided Simplex |
| 29 | Word is 16 bits is | 65536 64526 32526 34526 |
| 30 | The transfer of data from one place to another is called | Data processing Data distribution Data communication Data encryption |
