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Q:

An algorithm written once which can be used in many places is called

A) Block B) Function
C) Datatype D) None
 
Answer & Explanation Answer: B) Function

Explanation:

Function is an algorithm which can be used any where in the program when required

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Filed Under: Java

Q:

By whom will the unallocated memory that is no longer needed will be cleared in java?

A) Java Virtual Machine B) Garebage collector
C) Both A and B D) None
 
Answer & Explanation Answer: B) Garebage collector

Explanation:

The Java programming language provides a system-level thread to track memory allocation.

Garbage collection has the following characteristics:

• Checks for and frees memory no longer needed

• Is done automatically

• Can vary dramatically across JVM implementations

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Filed Under: Java

Q:

Which command displays the present workig directory in UNIX?

A) $who B) $pwd
C) $who are you D) None
 
Answer & Explanation Answer: B) $pwd

Explanation:

$pwd - present working directory

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Filed Under: Operating Systems

Q:

Which among the following are the capabilities of the Cursor?

A) It reads every row one by one. B) It can be parameterised and hence are flexible
C) It can be positioned to specific rows D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

All the above listed actions are the functions of cursor

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Filed Under: Database Administration

Q:

The SQL statements that take care of security and authorization are

A) DDL B) DML
C) DCL D) None
 
Answer & Explanation Answer: C) DCL

Explanation:

Data Control Language takes caare of security and authorization

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Filed Under: Software Testing

Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

Assertion (A) : Himalayas once laid under the sea. 

Reason (R)    : Fossils of marine creatures are traced on the Himalayas. 

A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is NOT the correct explanation of A.
C) A is true but R is false. D) A is false but R is true.
 
Answer & Explanation Answer: A) Both A and R are true and R is the correct explanation of A.

Explanation:

Himalayas are the young fold mountains that at one time are believed to lie inside the Tethys sea. This is evident from the recovery of fossils of marine creatures on its peaks. 

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Filed Under: Assertion and Reason

Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

 Assertion (A) :  Clothes are not washed properly in hard water. 

 Reason (A)    :  Hard water contains many minerals. 

A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is NOT the correct explanation of A.
C) A is true but R is false. D) A is false but R is true.
 
Answer & Explanation Answer: B) Both A and R are true but R is NOT the correct explanation of A.

Explanation:

Clothes are not washed properly in hard water because it does not form lather with soap. However, it is true that hard water contains many minerals. 

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Filed Under: Assertion and Reason

Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

Assertion (A)  :   Red colour of blood is due to haemoglobin. 

Reason (R)     :  Haemoglobin is a red pigment. 

A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is NOT the correct explanation of A.
C) A is true but R is false. D) A is false but R is true.
 
Answer & Explanation Answer: A) Both A and R are true and R is the correct explanation of A.

Explanation:

Haemoglobin is the blood pigment that imparts red colour to the blood. 

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Filed Under: Assertion and Reason