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 :-).

Which of the following commands allows you to make a directory?

	A.	MAKE
	B.	DIR
	C.	MD
	D.	DD
	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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Which of the following is not considered to be a basic element of an enterprise-class database system?

	A.	Users
	B.	Database applications
	C.	DBMS
	D.	COBOL programs

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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Using the _____ switch causes FDISK to display the partition status of your hard disk without executing FDISK.

	A.	/show
	B.	/display
	C.	/status
	D.	/part
	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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Holes are the minority carriers in which type of semiconductor?

	A.	Extrinsic
	B.	Intrinsic
	C.	n-type
	D.	p-type
	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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Transient data is which of the following?

	A.	Data in which changes to existing records cause the previous version of the records to be eliminated
	B.	Data in which changes to existing records do not cause the previous version of the records to be eliminated
	C.	Data that are never altered or deleted once they have been added
	D.	Data that are never deleted once they have been added

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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If you wanted to delete the configuration stored in NVRAM, what would you type?

	A.	erase startup
	B.	erase nvram
	C.	delete nvram
	D.	erase running

Your Answer: Option

Correct Answer: Option A

Explanation:

The command erase startup-config deletes the configuration stored in NVRAM.

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Does there any function exist to convert the int or float to a string?

	A.	Yes
	B.	No

Your Answer: Option

Correct Answer: Option A

Explanation:

1. itoa() converts an integer to a string.
2. ltoa() converts a long to a string.
3. ultoa() converts an unsigned long to a string.
4. sprintf() sends formatted output to a string, so it can be used to convert any type of values to string type.

#include<stdio.h>
#include<stdlib.h>

int main(void)
{
   int   num1 = 12345;
   float num2 = 5.12;
   char str1[20];
   char str2[20];

   itoa(num1, str1, 10); /* 10 radix value */
   printf("integer = %d string = %s \n", num1, str1);

   sprintf(str2, "%f", num2);
   printf("float = %f string = %s", num2, str2);

   return 0;
}

// Output:
// integer = 12345 string = 12345
// float = 5.120000 string = 5.120000

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JDBC stands for:

	A.	Java Database Connectivity
	B.	Java Database Components
	C.	Java Database Control
	D.	None of the above is correct.

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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In SQL, which command is used to make permanent changes made by statements issue since the beginning of a transaction?

	A.	ZIP
	B.	PACK
	C.	COMMIT
	D.	SAVE
	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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10.

Which of the following is not true about indexes?

	A.	Indexes are created to enforce uniqueness on columns.
	B.	Indexes are created to enable fast retrieval by column values.
	C.	Columns that are frequently used with equal conditions in WHERE clauses are good candidates for indexes.
	D.	Indexes are created with the ALTER TABLE command.

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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11.

Which of the following are the correct way to initialise the variables i and j to a value 10 each?

1 int i = 10; int j = 10;

2 int i, j;
i = 10 : j = 10;

3 int i = 10, j = 10;

4 int i, j = 10;

5 int i = j = 10;

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

Your Answer: Option

Correct Answer: Option B

Explanation:

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

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12.

If s1 and s2 are references to two strings then which of the following are the correct ways to find whether the contents of the two strings are equal?

1 if(s1 = s2)

2 if(s1 == s2)

3 int c;
c = s1.CompareTo(s2);

4 if( strcmp(s1, s2) )

5 if (s1 is s2)

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

Your Answer: Option

Correct Answer: Option B

Explanation:

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

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13.

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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14.

If you design a class that needs special initialization tasks, you will want to design a(n) _____

	A.	housekeeping routine
	B.	initializer
	C.	constructor
	D.	compiler

Your Answer: Option

Correct Answer: Option C

Explanation:

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

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15.

_____ is the ratio of correct information to the total amount of information produced over a period.

	A.	accuracy
	B.	concise
	C.	simulation
	D.	decision
	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.

________ is an object-oriented interface that encapsulates data-server functionality.

	A.	ODBC
	B.	OLE DB
	C.	JPCD
	D.	ADO

Your Answer: Option

Correct Answer: Option B

Explanation:

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

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17.

Which command of MS-DOS is used to copy only files that have been modified on or after the date you specify?

	A.	XCOPY/D : date
	B.	COPY/D : date
	C.	COPY/M
	D.	XCOPY/V
	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.

Which of the following statements is correct?

	A.	Only one object can be created from an abstract class.
	B.	By default methods are virtual.
	C.	If a derived class does not provide its own version of virtual method then the one in the base class is used.
	D.	If the method in the derived class is not preceded by override keywords, the compiler will issue a warning and the method will behave as if the override keyword were present.
	E.	Each derived class does not have its own version of a virtual method.

Your Answer: Option

Correct Answer: Option C

Explanation:

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

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19.

User views are included as part of which schema?

	A.	Internal
	B.	Conceptual
	C.	External
	D.	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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20.

In LISP, the addition 3 + 2 is entered as

	A.	3 + 2
	B.	3 add 2
	C.	3 + 2 =
	D.	(+ 3 2)
	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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