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Questions > Computer Systems > Test 2
1.
Systems can never be broken down into components or sub-systems. True or False?
select answer
True
False
2.
Cybernetics is centred completely around the study of artificial intelligence. True or False?
select answer
True
False
3.
Positive feedback usually results in a finite state being reached. True or False?
select answer
True
False
4.
Which of the following is not contained in a system description?
select answer
Internal data flows
Flows leaving and entering the system
Relationships between external entities
Internal components or processes
5.
A positive number in excess notation has its most significant bit set to 0. True or False?
select answer
True
False
6.
Main memory is always smaller than cache memory. True or False?
select answer
True
False
7.
A hard disk consists of a single spiral track to which data is recorded. True or False?
select answer
True
False
8.
How is the decimal value for 30 represented in binary?
select answer
00001111
00011010
00011110
00011111
9.
What is the result of adding the binary numbers 01000011 and 10010000 on an 8 bit machine?
select answer
11010011
11110011
11001011
11010101
10.
A memory chip has 8 data lines and 9 address lines. How many bytes can be stored on it?
select answer
511
512
500
256
11.
Which of the following devices requires the highest input data transferrate?
select answer
Floppy Disc
CD
Keyboard
Mouse
12.
Good documentation and control of systems development does not lead to any long term benefits related to the use and maintenance of the system. True or False?
select answer
True
False
13.
Processes on a data flow diagram do not require outgoing data flows. True or False?
select answer
True
False
14.
Low coupling and low cohesion between sub-systems is desirable when designing a system. True or False?
select answer
True
False
15.
Which of the following does MIS stand for?
select answer
Manager Input System
Management Information System
Metric Information System
Management Information Sub-system
/ 15 correct on first try.
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