Java Programming Test (Random Questions)

Java 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.
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All the best :-).

Which of the following is true concerning Web services standards?

	A.	Led by only one group.
	B.	Helped by cooperation between companies.
	C.	Not necessary at this time.
	D.	Important so that the web can flourish.

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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Is it possible to invoke Garbage Collector explicitly?

	A.	Yes
	B.	No

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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The memory allocation scheme subject to "external" fragmentation is

	A.	segmentation
	B.	swapping
	C.	pure demand paging
	D.	multiple contiguous fixed partitions
	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 of the following can be used to terminate a while loop and transfer control outside the loop?

1 exit while

2 continue

3 exit statement

4 break

5 goto

	A.	1, 3
	B.	2, 4
	C.	3, 5
	D.	4, 5
	E.	None of these

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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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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Which of the following statements are correct?

1 A struct can contain properties.

2 A struct can contain constructors.

3 A struct can contain protected data members.

4 A struct cannot contain methods.

5 A struct cannot contain constants.

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

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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While working with MS-DOS, which command is used to restore files that were backed up using the BACKUP command?

	A.	COPY
	B.	DISKCOPY
	C.	RESTORE
	D.	STORE
	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 one of the following symbols is not used in an ERD?

	A.	Rectangle
	B.	Oval
	C.	Diamond
	D.	Circle

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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Each answer below shows example data from a table. Which answer is an example of the missing values problem?

	A.	Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row.
	B.	Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column.
	C.	Three rows have the values Brown, NULL, and Blue in the same column.
	D.	One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.

Your Answer: Option

Correct Answer: Option C

Explanation:

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

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10.

Which protocol does DHCP use at the Transport layer?

	A.	IP
	B.	TCP
	C.	UDP
	D.	ARP

Your Answer: Option

Correct Answer: Option C

Explanation:

User Datagram Protocol is a connection network service at the Transport layer, and DHCP uses this connectionless service.

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11.

Inventory is also referred to as:

	A.	stock
	B.	warehouse capacity
	C.	materials
	D.	materials in hand
	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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12.

Which of the following is a way to create and modify tables using SQL Server?

	A.	Write SQL code using either CREATE or ALTER SQL statements only.
	B.	Use the graphical facilities of SQL Server Enterprise Manager only.
	C.	Both of the two methods above will work.
	D.	Neither of the two methods above will work.

Your Answer: Option

Correct Answer: Option C

Explanation:

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

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13.

Which of the following statements are correct about data types?

1 Each value type has an implicit default constructor that initializes the default value of that type.

2 It is possible for a value type to contain the null value.

3 All value types are derived implicitly from System.ValueType class.

4 It is not essential that local variables in C# must be initialized before being used.

5 Variables of reference types referred to as objects and store references to the actual data.

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

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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14.

Which of the following is considered to be the destination host after translation?

	A.	Inside local
	B.	Outside local
	C.	Inside global
	D.	Outside global

Your Answer: Option

Correct Answer: Option D

Explanation:

The host on the global network after translation is considered to be an outside global host.

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15.

A heterogeneous distributed database is which of the following?

	A.	The same DBMS is used at each location and data are not distributed across all nodes.
	B.	The same DBMS is used at each location and data are distributed across all nodes.
	C.	A different DBMS is used at each location and data are not distributed across all nodes.
	D.	A different DBMS is used at each location and data are distributed across all nodes.

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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16.

The SQL keyword(s) ________ is used with wildcards.

	A.	LIKE only
	B.	IN only
	C.	NOT IN only
	D.	IN and NOT IN

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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17.

Which of the following command can you execute to count the number of lines in a file?

	A.	lc
	B.	wc - l
	C.	cl
	D.	count
	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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18.

If a function fun() is to sometimes receive an int and sometimes a double then which of the following is the correct way of defining this function?

	A.	static void fun(object i) { ... }
	B.	static void fun(int i) { ... }
	C.	static void fun(double i, int j) { ... }
	D.	static void fun(int i, double j) { ... }
	E.	static void fun(int i, double j, ) { ... }

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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19.

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

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

Your Answer: Option

Correct Answer: Option D

Explanation:

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

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20.

According to ANSI specifications which is the correct way of declaring main when it receives command-line arguments?

	A.	int main(int argc, char *argv[])
	B.	int main(argc, argv) int argc; char *argv;
	C.	int main() { int argc; char *argv; }
	D.	None of above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

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