C Programming Test (Random Questions)

C Programming Test (Random Questions) - Computer Science & Engineering

Instruction:

This is a FREE online test. DO NOT pay money to anyone to attend this test.
Total number of questions : 20.
Time alloted : 30 minutes.
Each question carry 1 mark, no negative marks.
DO NOT refresh the page.
All the best :-).

When an entity instance must be a member of only one subtype, it is which of the following?

	A.	Disjoint with total specialization
	B.	Disjoint with partial specialization
	C.	Overlap with total specialization
	D.	Overlap with partial specialization

Your Answer: Option

Correct Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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Supervisor state is

	A.	never used
	B.	entered by programs when they enter the processor
	C.	required to perform any I/O
	D.	only allowed to the operating system
	E.	None of the above

Your Answer: Option

Correct Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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The string built using the String class are immutable (unchangeable), whereas, the ones built- using the StringBuilder class are mutable.

	A.	True
	B.	False

Your Answer: Option

Correct Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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When the collector current increases, what does the current gain do?

	A.	decreases
	B.	stays the same
	C.	increases
	D.	any of the above
	E.	None of the above

Your Answer: Option

Correct Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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A natural language generation program must decide:

	A.	what to say
	B.	when to say something
	C.	why it is being used
	D.	both (a) and (b)
	E.	None of the above

Your Answer: Option

Correct Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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If Sample class has a Length property with set accessor then which of the following statements will work correctly?

	A.	Sample m = new Sample(); int l; l = m.Length;
	B.	Sample m = new Sample(); m.Length = m.Length + 20;
	C.	Sample.Length = 20;
	D.	Console.WriteLine (Sample.Length);
	E.	Sample m = new Sample(); m.Length = 10;

Your Answer: Option

Correct Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

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To find out how much memory is available, you could type______.

	A.	EMM
	B.	MEM
	C.	CHKDSK
	D.	MEMMAKER
	E.	None of the above

Your Answer: Option

Correct Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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On the PC side, the printer port is a:

	A.	25 pin female serial connector
	B.	15 pin female parallel connector
	C.	25 pin male serial connector
	D.	15 pin female serial connector
	E.	25 pin female parallel connector

Your Answer: Option

Correct Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

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Which two of the following methods are defined in class Thread?

1 start()
2 wait()
3 notify()
4 run()
5 terminate()

	A.	1 and 4
	B.	2 and 3
	C.	3 and 4
	D.	2 and 4

Your Answer: Option

Correct Answer: Option A

Explanation:

(1) and (4). Only start() and run() are defined by the Thread class.

(2) and (3) are incorrect because they are methods of the Object class. (5) is incorrect because there's no such method in any thread-related class.

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10.

Which of the following utilities can be used to compile managed assemblies into processor-specific native code?

	A.	gacutil
	B.	ngen
	C.	sn
	D.	dumpbin
	E.	ildasm

Your Answer: Option

Correct Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

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11.

Copy constructor must receive its arguments by __________ .

	A.	either pass-by-value or pass-by-reference
	B.	only pass-by-value
	C.	only pass-by-reference
	D.	only pass by address

Your Answer: Option

Correct Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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12.

Which of the following statements is correct about constructors in C#.NET?

	A.	A constructor cannot be declared as private.
	B.	A constructor cannot be overloaded.
	C.	A constructor can be a static constructor.
	D.	A constructor cannot access static data.
	E.	this reference is never passed to a constructor.

Your Answer: Option

Correct Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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13.

What will be the output of the program?

public class Foo
{
public static void main(String[] args)
{
try
{
return;
}
finally
{
System.out.println( "Finally" );
}
}
}

	A.	Finally
	B.	Compilation fails.
	C.	The code runs with no output.
	D.	An exception is thrown at runtime.

Your Answer: Option

Correct Answer: Option A

Explanation:

If you put a finally block after a try and its associated catch blocks, then once execution enters the try block, the code in that finally block will definitely be executed except in the following circumstances:

An exception arising in the finally block itself.
The death of the thread.
The use of System.exit()
Turning off the power to the CPU.

I suppose the last three could be classified as VM shutdown.

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14.

The Memory Buffer Register (MBR)

	A.	is a hardware memory device which denotes the location of the current instruction being executed.
	B.	is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
	C.	contains the address of the memory location that is to be read from or stored into.
	D.	contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
	E.	None of the above

Your Answer: Option

Correct Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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15.

Which of the following is the correct implementation of the interface given below?

interface IMyInterface
{
double MyFun(Single i);
}

	A.	class MyClass { double MyFun(Single i) as IMyInterface.MyFun { // Some code } }
	B.	class MyClass { MyFun (Single i) As Double { // Some code } }
	C.	class MyClass: implements IMyInterface { double fun(Single si) implements IMyInterface.MyFun() { //Some code } }
	D.	class MyClass: IMyInterface { double IMyInterface.MyFun(Single i) { // Some code } }

Your Answer: Option

Correct Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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16.

If Sample class has a Length property with get accessor then which of the following statements will work correctly?

	A.	Sample m = new Sample(); m.Length = 10;
	B.	Sample m = new Sample(); m.Length = m.Length + 20;
	C.	Sample m = new Sample(); int l; l = m.Length;
	D.	Sample.Length = 20;
	E.	Console.WriteLine(Sample.Length);

Your Answer: Option

Correct Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

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17.

What is the port number for NNTP?

	A.	119
	B.	80
	C.	79
	D.	70

Your Answer: Option

Correct Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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18.

Which of the following is the correct size of a Decimal datatype?

	A.	8 Bytes
	B.	4 Bytes
	C.	10 Bytes
	D.	16 Bytes
	E.	None of the above.

Your Answer: Option

Correct Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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19.

The keyword used to transfer control from a function back to the calling function is

	A.	switch
	B.	goto
	C.	go back
	D.	return

Your Answer: Option

Correct Answer: Option D

Explanation:

The keyword return is used to transfer control from a function back to the calling function.

Example:


#include<stdio.h>
int add(int, int); /* Function prototype */

int main()
{
    int a = 4, b = 3, c;
    c = add(a, b);
    printf("c = %d\n", c);
    return 0;
}
int add(int a, int b)
{
/* returns the value and control back to main() function */
   return (a+b);
}

Output:
c = 7

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20.

Which is NOT one of the most common types of SQL CHECK constraints?

	A.	System date
	B.	Range checks
	C.	Lists of values
	D.	Comparing one column value to another within the same table

Your Answer: Option

Correct Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

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