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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.

1.

The expression when written is Pascal should be written as

Answer» Operators must be written.
2.

A modem is connected to PC at

Answer» Modem is connected at serial port.
3.

A nibble corresponds to

Answer» Nibble has 4 bits.
4.

A computer program is used to read N and print the sum 1 + 2 + 3 +.....+ N. If N = 10, the print out will show the number

Answer» SUM = 12 + 22 + 33 + 44 + 52 + 62 + 77 + 82 + 92 + 102 = 385.
5.

If word length is 16 bits the decimal equivalent of largest number which can be stored is

Answer» Complete real number has all the three, i.e., sign, integer part and fraction part.
6.

A computer window has a bar at its top to bear the name of window. This bar is called

Answer» It is called 'title bar'.
7.

For the floating point numbers 1.81 x 10 and 0.0152 x 10 the normalised forms are

Answer» In normalised form, the integer part is zero.
8.

In computers the secondary memory is faster than primary memory.

Answer» Secondary memory is slow.
9.

Zip floppy has a capacity of

Answer» Zip floppy has high memory 100 MB or 250 MB.
10.

A microprocessor is generally

Answer» It is LSI chip.
11.

Binary storage of decimal number 44 in 8 bits is

Answer» Use decimal to binary conversion method.
12.

LET JCOKE = 11 and LPEPSI = 19. Consider the statement The value of JCOKE after the execution of above statement will be

Answer» (J COKE - L PEPSI) is 11 - 19 = - 8 Since (J COKE - L PEPSI) is negative statement 5 is executed and result is 11 + 2 = 13.
13.

The decimal equivalent of binary 1101.11 is

Answer» Convert to decimal.
14.

A failure rate of 0.01 percent in 1000 hours in a memory corresponds to an MTBF of

Answer» .
15.

Consider the expression = (). The correct C statement for above expression is

Answer» All operators must be written explicity in C.
16.

Which is a valid Java variable?

Answer» In all others first letter is not lower case.
17.

Let the initial contents of in 8085 be After the instruction is executed twice the contents of respectively will be

Answer» RAL means 'rotate left through carry'.
18.

When we use instruction once in 8085, the number is

Answer» When RRC is used once the number is divided by 2.
19.

When two are cascaded

Answer» In cascading carry out of first stage is connected to carry in of second stage.
20.

If INT = 50 and LOOT = 30, the result of assignment statement is

Answer» The result should be sum of 50 and 30 and decimal must be added.
21.

Let JCOKE = 3 and LPEPSI = 5. Consider the statement What will be the final value of JCOKE after the above statement is executed?

Answer» The logical IF statement means that IF (3 x J COKE) is equal to (L PEPSI), J COKE = 3 + 2 = 5 otherwise J COKE = 3+5 = 8 Since (3 x J COKE) is more than (L PEPSI), the result is 8.
22.

Diskette can be used for primary storage as well as secondary storage in a computer.

Answer» Diskette is a secondary storage.
23.

If initial value of is zero and a program adds X to , Y times we get the result

Answer» Adding X to PROD, Y times evidently gives the product XY.
24.

A computer program is used to read N and compute N !. IF N = 6, the result will be

Answer» 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720.
25.

The port of PC to which mouse is connected is called

Answer» Mouse is connected to serial port.
26.

FORTRAN expression for is

Answer» It is the only expression with correct symbols.
27.

A memory chip has 65536 cells in it. Then

Answer» Time required to access different cells is the same.
28.

Which has volatile memory?

Answer» RAM has volatile memory and therefore the matter has to be saved frequently.
29.

IC 74181 performs arithmetic operations when M = 1.

Answer» When M = 1, IC 74181 performs logic operations.
30.

A computer program is used to read M and print the sum 2 + 4 + 6 + 8 +.........+ 2M. If M = 9 , the print out will show the number

Answer» SUM = 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 + 18 = 90.
31.

Initially the number decimal 8 is stored. If instruction is executed twice, the final number stored will be

Answer» If instruction RAL is executed once the number gets doubled.
32.

In Java 31% gives an answer

Answer» Modulus operator gives the remainder of division as answer.
33.

For the expression the correct Pascal equivalent is

Answer» Operator * must be written explicitly in Pascal.
34.

8085 needs + 10 V supply.

Answer» 8085 needs +5 V supply.
35.

Contents of RAM cannot be altered.

Answer» It is read and write memory. Its contents can be changed.
36.

If PRIN = 200.0 and BINT = 0.0525 the result of expression will be

Answer» The result should not contain decimal.
37.

The correct way of writing the expression in Pascal is

Answer» Operators must be written. They are not implied.
38.

A microprocessor uses 3 MHz oscillator. The duration of one T state is

Answer» = 0.333 x 10-6 s.
39.

Java's syntax is based on

Answer» Java syntax is based on C++.
40.

After the execution of above statement the control is transferred to statement number

Answer» Since L PEPSI = 2 x 2 + 1 = 5 the control goes to the fifth statement, i.e., 13.
41.

In FORTRAN 77 IFIX (-73.2) gives the value

Answer» Only integer part appears in result.
42.

6 bytes means

Answer» One byte has 8 bits.
43.

In the integer expression which operation is done first in Pascal

Answer» In Pascal binary has highest priority.
44.

In Pascal if I = 55, 10 * I div 10 =

Answer» In Pascal multiplication has higher precedence than division so 10 x 55 = .
45.

If it is desired to tabulate number of students in a class in Fortran language, a proper variable name is

Answer» It is an integer. Hence N as first character.
46.

Let JCOKE = 20 and LPEPSI =15. Consider the statement The value of JCOKE after the execution of above statement will be

Answer» Since 2 x J COKE = 40 and (LPEPSI) is 15 control goes to statement J COKE = J COKE + 3 and result is 23.
47.

In Pascal if I = 45, I div 10 * 10 =

Answer» → 4 x 10 = 40.
48.

Which is not a software?

Answer» Hard disc is a memory storage device.
49.

Accumulator is an 8 bit register and is also known as register B.

Answer» Accumulator is register A.
50.

Which language has a preprocessor?

Answer» Preprocessor processes the source program before it is passed to compiler.