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 :-).

What will be the output of the C#.NET code snippet given below?

namespace IndiabixConsoleApplication
{
class SampleProgram
{
static void Main(string[ ] args)
{
object[] o = new object[] {"1", 4.0, "India", 'B'};
fun (o);
}
static void fun (params object[] obj)
{
for (int i = 0; i < obj.Length-1; i++)
Console.Write(obj[i] + " ");
}
}
}

	A.	1 4.0 India B
	B.	1 4.0 India
	C.	1 4 India
	D.	1 India B

Your Answer: Option

Correct Answer: Option C

Explanation:

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

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Which of the following statements is correct for the use of packet switching?

	A.	the subdivision of information into individually addressed packets in conjunction with alternative routing arrangement enabled the transmission path to be altered in the event of congestion or individual link failure
	B.	the employment of additional intelligence within the network enabled more sophisticated error control and link control procedures to be applied
	C.	by employing wide bandwidth circuits for the trunk networks substantial economies through extensive sharing of capacity could be achieved.
	D.	All of the above
	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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Prior to the invention of time sharing, the prevalent method of computer access was:

	A.	batch processing
	B.	telecommunication
	C.	remote access
	D.	All of the above
	E.	None of the above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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Which bitwise operator is suitable for turning off a particular bit in a number?

	A.	&& operator
	B.	& operator
	C.	\|\| operator
	D.	! operator

Your Answer: Option

Correct Answer: Option B

Explanation:

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

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Which of the following is not one of the stages in the evolution of distributed DBMS?

	A.	Unit of work
	B.	Remote unit of work
	C.	Distributed unit of Work
	D.	Distributed request

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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Which of the following keyword is used to overload an operator?

	A.	overload
	B.	operator
	C.	friend
	D.	override

Your Answer: Option

Correct Answer: Option B

Explanation:

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

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public interface Foo
{
int k = 4; /* Line 3 */
}

Which three piece of codes are equivalent to line 3?

1 final int k = 4;

2 public int k = 4;

3 static int k = 4;

4 abstract int k = 4;

5 volatile int k = 4;

6 protected int k = 4;

	A.	1, 2 and 3
	B.	2, 3 and 4
	C.	3, 4 and 5
	D.	4, 5 and 6

Your Answer: Option

Correct Answer: Option A

Explanation:

(1), (2) and (3) are correct. Interfaces can have constants, which are always implicitly public, static, and final. Interface constant declarations of public, static, and final are optional in any combination.

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Which command will show you the IOS version running on your router?

	A.	sh IOS
	B.	sh flash
	C.	sh version
	D.	sh running-config

Your Answer: Option

Correct Answer: Option C

Explanation:

The best answer is show version, which shows you the IOS file running currently on your router. The show flash command shows you the contents of flash memory, not which file is running.

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Which symbol will be used with grep command to match the pattern pat at the beginning of a line?

	A.	^pat
	B.	$pat
	C.	pat$
	D.	pat^
	E.	None of the above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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10.

Which of the following statements is correct?

	A.	Information is never lost during narrowing conversions.
	B.	The CInteger() function can be used to convert a Single to an Integer.
	C.	Widening conversions take place automatically.
	D.	Assigning an Integer to an Object type is known as Unboxing.
	E.	3.14 can be treated as Decimal by using it in the form 3.14F.

Your Answer: Option

Correct Answer: Option C

Explanation:

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

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11.

What will be the output of the program?

public class X
{
public static void main(String [] args)
{
try
{
badMethod();
System.out.print("A");
}
catch (Exception ex)
{
System.out.print("B");
}
finally
{
System.out.print("C");
}
System.out.print("D");
}
public static void badMethod()
{
throw new Error(); /* Line 22 */
}
}

	A.	ABCD
	B.	Compilation fails.
	C.	C is printed before exiting with an error message.
	D.	BC is printed before exiting with an error message.

Your Answer: Option

Correct Answer: Option C

Explanation:

Error is thrown but not recognised line(22) because the only catch attempts to catch an Exception and Exception is not a superclass of Error. Therefore only the code in the finally statement can be run before exiting with a runtime error (Exception in thread "main" java.lang.Error).

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12.

Which is valid declaration of a float?

	A.	float f = 1F;
	B.	float f = 1.0;
	C.	float f = "1";
	D.	float f = 1.0d;

Your Answer: Option

Correct Answer: Option A

Explanation:

Option A is valid declaration of float.

Option B is incorrect because any literal number with a decimal point u declare the computer will implicitly cast to double unless you include "F or f"

Option C is incorrect because it is a String.

Option D is incorrect because "d" tells the computer it is a double so therefore you are trying to put a double value into a float variable i.e there might be a loss of precision.

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13.

A relation in this form is free of all modification anomalies.

	A.	First normal form
	B.	Second normal form
	C.	Third normal form
	D.	Domain/key normal form

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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14.

Which of the following services use TCP?

DHCP
SMTP
HTTP
TFTP
FTP

	A.	1 and 2
	B.	2, 3 and 5
	C.	1, 2 and 4
	D.	1, 3 and 4

Your Answer: Option

Correct Answer: Option B

Explanation:

SMTP, HTTP and FTP use TCP.

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15.

A section of code to which control is transferred when a processor is interrupted is known as

	A.	M
	B.	SVC
	C.	IP
	D.	MDR
	E.	None of the above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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16.

What does the transport protocol do?

	A.	It defines how data should be presented to the next receiving layer, packages the data accordingly, and then passes the data to the application through the session layer interface.
	B.	It provides low-level access to the network adapters by providing data transmission support and some basic adapter management functions
	C.	It supports communications between applications on different computers by creating sessions, defining data-exchange formats, and providing application-support services
	D.	It is responsible for establishing logical names on the network, establishing connections between two logical names on the network, and supporting reliable data transfer between computers that have established a session
	E.	None of the above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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17.

Flood guns bombard the phosphor surface of the tube in which one of the following types of CRT technology?

	A.	Direct view storage tube
	B.	Raster scan CRT
	C.	Refresh-vector CRT
	D.	Stroke CRT
	E.	None of the above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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18.

How many values is a function capable of returning?

	A.	1
	B.	0
	C.	Depends upon how many params arguments does it use.
	D.	Any number of values.
	E.	Depends upon how many ref arguments does it use.

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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19.

CAD/CAM is the inter-relationship between:

	A.	manufacturing and marketing
	B.	marketing and design
	C.	engineering and marketing
	D.	engineering and manufacturing
	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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20.

The main function(s) of computer in CAD is/are

	A.	To serve as an extension to the memory of the designer
	B.	To enhance the analytical and logical power of the designer
	C.	To relieve the designer from routine repetitious tasks.
	D.	All of the above
	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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