ECAT Computer Science MCQ's Test For Full Book With Answers

ECAT Computer Science MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 Cabling on a linear bus topology can be extended using which of the following? Terminator Barrel connector Network adapter card Medium attachment unit
2 What best describes a bus topology network? The number of computers on the network does not affect performance Easier to troubleshoot than other topologies Needs significantly more cabling than other topologies Media is inexpensive and easy to work with
3 Which of the following topologies is passive? Star topology Ring topology Bus topology Hybrid topology
4 Which of the following statements best describes a star topology? Needs significantly less cabling than other topologies Breaks in a single cable segment takes down entire network More difficult to reconfigure than other topologies Centralized monitoring and management
5 Which of the following does not provide a graphical user interface. OS/2 MS-DOS Macintosh Windows NT Workstation
6 A device that connects multiple nodes to the network is. A modem A repeater A router A hub
7 Which of the following is not a category of network problems. Newsgroup problems Physical problems Electrical problems Viruses
8 The media Access Control sublayer resides in which OSI layer? Physical Data Link Network Transport
9 What enables a computer to work with a printer? Protocols Drivers Packet processor HCL
10 Token passing prevents data collisions by. Using code to steer tokens around each other Having multiple tokens take alternate routes. Allowing only one computer at a time to use the token Using zones to control network traffic congestion
11 Which of the following access methods listens to the cable for network traffic before sending data? Token passing Polliing CSMA/CA CSMA/CD
12 What layer of the OSI model does data compression? Network Data Link Presentation Physical
13 Project 802 defines standards for which layers of the OSI model? Application and Presentation layers Physical an Date Link layers Transport and Network layers Network and Data Link layers
14 A network of geographically distant computers and terminals is called a. bus WAN gateway LAN
15 People on a LAN can share. Printer CD/ROM disk drive modem fax machine All of the above
16 The transfer if encoded information from one location to another by a communication channel is called data processing data distribution data communication data encryption
17 Pick up wrong logical expression
18 According to Boolean algebra x + 1 = ______________ 0 1 x
19 0 1 x
20 0 1 x
21 According to Idempotent law , x + y = __________ 1 0 x x . x
22 In a three input NAND gate, if all the inputs are 1, the output is. 0 1 3 indeterminate
23 The number of inputs to full adder are 1 2 3 4
24 The half adder circuit has one input two inputs three inputs always more than two inputs
25 The heart of analog to digital converter (ADC) is comparator pulse generator voltage source current source
26 The circuit that is used for parallel to serial conversion is decoder encoder multiplexer demultiplexer
27 The 'Boolean Algebra' is based on the premise that there are two states differential equations can be solved by analog circuits. either a statement is true or false arithmetic operations can be carried out
28 In Boolean algebra A.0 is 0 1 A+0 A+1
29 In Boolean algebra A.A.A.A.A 5A A A<sup>5</sup> 1
30 According to Boolean algebra A+A+......+A is A n A 0 1
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