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.
DO NOT refresh the page.
All the best :-).

Conversion of binary number 1010000101112 to hexadecimal number is

	A.	D8F9 16
	B.	A8B9 16
	C.	A17 16
	D.	D9F8 16
	E.	None of the above

Your Answer: Option

Correct Answer: Option C

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

An XML component that defines the structure of a document is known as a(n):

	A.	DOCTYPE.
	B.	DTD.
	C.	#PCDATA.
	D.	HTML Stylesheet.

Your Answer: Option

Correct Answer: Option B

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

For the code snippet shown below, which of the following statements are valid?

public class Generic<T>
{
public T Field;
public void TestSub()
{
T i = Field + 1;
}
}
class MyProgram
{
static void Main(string[] args)
{
Generic<int> gen = new Generic<int>();
gen.TestSub();
}
}

	A.	Addition will produce result 1.
	B.	Result of addition is system-dependent.
	C.	Program will generate run-time exception.
	D.	Compiler will report an error: Operator '+' is not defined for types T and int.
	E.	None of the above.

Your Answer: Option

Correct Answer: Option D

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

Which of the following database activities determines the entities, attributes, and relationships of data?

	A.	Conceptual data modeling
	B.	Logical database design
	C.	Physical database design and definition
	D.	Database implementation

Your Answer: Option

Correct Answer: Option A

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

	A.	The keepalives are different times.
	B.	The administrator has the interface shut down.
	C.	The administrator is pinging from the interface.
	D.	No cable is attached.

Your Answer: Option

Correct Answer: Option B

Explanation:

If an interface is shut down, the show interface command will show the interface as administratively shut down. (It is possible that no cable is attached, but you can't tell that from this message.)

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

Of the three ways to create an Oracle database, which one is the easiest and most recommended?

	A.	Using the Oracle Database Configuration Assistant.
	B.	Using the Oracle-supplied database creation procedures.
	C.	Using the SQL CREATE DATABASE command.
	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.

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

What protocols are used to configure trunking on a switch?

VLAN Trunking Protocol
VLAN
802.1Q
ISL

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

Your Answer: Option

Correct Answer: Option B

Explanation:

VTP is not right because it has nothing to do with trunking except that it sends VLAN information across a trunk link. 802.1Q and ISL are used to configure trunking on a port.

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

Structured data may include which of the following?

	A.	Photo image
	B.	Video clip
	C.	Dates
	D.	None of the above.

Your Answer: Option

Correct Answer: Option C

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

The transistor has a collector current of 10 mA and a base current of 40 mA. What is the current gain of the transistor?

	A.	250 Î¼A
	B.	350 Î¼A
	C.	0.25 Î¼A
	D.	300 Î¼A
	E.	None of the above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

10.

For the code snippet given below, which of the following statements are valid?

public class MyContainer<T> where T: class, IComparable
{
//Insert code here
}

1 Class MyContainer requires that it's type argument must implement IComparable interface.

2 Compiler will report an error for this block of code.

3 There are multiple constraints on type argument to MyContainer class.

4 Class MyContainer requires that its type argument must be a reference type and it must implement IComparable interface.

	A.	1 and 2 Only
	B.	3 and 4 Only
	C.	2 and 3 Only
	D.	All of the above
	E.	None of the above

Your Answer: Option

Correct Answer: Option B

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

11.

What VTP mode allows you to change VLAN information on the switch?

	A.	Client
	B.	STP
	C.	Server
	D.	Transparent

Your Answer: Option

Correct Answer: Option C

Explanation:

Only in server mode can you change VTP information on a switch.

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

12.

Which of the following statements are correct about arrays used in C#.NET?

1 Arrays can be rectangular or jagged.

2 Rectangular arrays have similar rows stored in adjacent memory locations.

3 Jagged arrays do not have an access to the methods of System.Array Class.

4 Rectangular arrays do not have an access to the methods of System.Array Class.

5 Jagged arrays have dissimilar rows stored in non-adjacent memory locations.

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

Your Answer: Option

Correct Answer: Option D

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

13.

What type of RJ45 UTP cable is used between switches?

	A.	Straight-through
	B.	Crossover cable
	C.	Crossover with a CSU/DSU
	D.	Crossover with a router in between the two switches

Your Answer: Option

Correct Answer: Option B

Explanation:

To connect two switches together, you would use a RJ45 UTP crossover cable.

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

14.

What does RIPv2 use to prevent routing loops?

CIDR
Split horizon
Authentication
Classless masking
Holddown timers

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

Your Answer: Option

Correct Answer: Option C

Explanation:

RIPv2 uses the same timers and loop-avoidance schemes as RIPv1. Split horizon is used to stop an update from being sent out the same interface it was received on. Holddown timers allow time for a network to become stable in the case of a flapping link.

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

15.

Which of the following operations can be performed on the file "NOTES.TXT" using the below code?

FILE *fp;
fp = fopen("NOTES.TXT", "r+");

	A.	Reading
	B.	Writing
	C.	Appending
	D.	Read and Write

Your Answer: Option

Correct Answer: Option D

Explanation:

r+ Open an existing file for update (reading and writing).

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

16.

What command is used with vi editor to delete a single character?

	A.	x
	B.	y
	C.	a
	D.	z
	E.	None of the above

Your Answer: Option

Correct Answer: Option A

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

17.

Which command is used to sort the lines of data in a file in reverse order

	A.	sort
	B.	sh
	C.	st
	D.	sort -r
	E.	None of the above

Your Answer: Option

Correct Answer: Option D

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

18.

Peter uses a Microsoft Windows 95 computer. What should he do to be able to administer domain user accounts from his computer?

	A.	install User Manager for Domains on his computer
	B.	install the Client-based Network Administration Tools on his computer
	C.	install Windows NT Server on his computer
	D.	install Windows NT Workstation on his computer
	E.	None of the above

Your Answer: Option

Correct Answer: Option B

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

19.

You want subclasses in any package to have access to members of a superclass. Which is the most restrictive access that accomplishes this objective?

	A.	public
	B.	private
	C.	protected
	D.	transient

Your Answer: Option

Correct Answer: Option C

Explanation:

Access modifiers dictate which classes, not which instances, may access features.

Methods and variables are collectively known as members. Method and variable members are given access control in exactly the same way.

private makes a member accessible only from within its own class

protected makes a member accessible only to classes in the same package or subclass of the class

default access is very similar to protected (make sure you spot the difference) default access makes a member accessible only to classes in the same package.

public means that all other classes regardless of the package that they belong to, can access the member (assuming the class itself is visible)

final makes it impossible to extend a class, when applied to a method it prevents a method from being overridden in a subclass, when applied to a variable it makes it impossible to reinitialise a variable once it has been initialised

abstract declares a method that has not been implemented.

transient indicates that a variable is not part of the persistent state of an object.

volatile indicates that a thread must reconcile its working copy of the field with the master copy every time it accesses the variable.

After examining the above it should be obvious that the access modifier that provides the most restrictions for methods to be accessed from the subclasses of the class from another package is C - protected. A is also a contender but C is more restrictive, B would be the answer if the constraint was the "same package" instead of "any package" in other words the subclasses clause in the question eliminates default.

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

20.

A base class may also be called a

	A.	child class
	B.	subclass
	C.	derived class
	D.	parent class

Your Answer: Option

Correct Answer: Option D

Explanation:

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

Learn more problems on : Java Programming Test (Random Questions)

Discuss about this problem : Discuss in Forum

Marks :
Total number of questions	:
Number of answered questions	:
Number of unanswered questions	:

Java Programming Test (Random Questions)

Test Review : View answers and explanation for this test.

Questions & Answers

Interviews

Jobs

Results

Admission

Admit Card

Answer Key