Questions

Q:

In the context of memory management, what are placement and replacement algorithms?

Answer

Placement algorithms determine where in available real-memory to load a program. Common methods are first-fit, next-fit, best-fit. Replacement algorithms are used when memory is full, and one process (or part of a process) needs to be swapped out to accommodate a new program. The replacement algorithm determines which are the partitions to be swapped out.

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Q:

The land mass of India has an area of ______ million square km.

A) 1.28 B) 2.28
C) 3.28 D) 4.28
 
Answer & Explanation Answer: C) 3.28

Explanation:
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Filed Under: Indian Geography
Exam Prep: Bank Exams

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Q:

Country's first unmanned tank, rolls out from the Chennai lab. What is its name ?

A) Muntra B) Lira
C) Santra D) Myntra
 
Answer & Explanation Answer: A) Muntra

Explanation:

Defence Research and Development Organisation (DRDO) has developed an unmanned, remotely operated tank which has three variants - surveillance, mine detection and reconnaissance in areas with nuclear and bio threats. It is called Muntra. 

 
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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

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Q:

Study of Rocks is called

A) Geology B) Cytology
C) Petrology D) Petology
 
Answer & Explanation Answer: C) Petrology

Explanation:

The scientific study of rocks is called petrology, which is an essential component of geology.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

If people sleep in closed rooms where charcoal fire is burning , they die due to 

A) carbon monoxide B) carbon dioxide
C) methane D) phosgene
 
Answer & Explanation Answer: A) carbon monoxide

Explanation:

A closed room is aplace where charcoal is burnt in limited supply of air. There is every chance for the formation of the deadly poisonous carbon monoxide, which when inhaled, reacts with the iron in haemoglobin of blood and prevents the supply of oxygen. It is said to be treacherous as there can be no previous warning of its presence because it is an odourless and colourless gas.

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Filed Under: Chemistry

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Q:

Which of the following is a Heterogeneous Mixture?

A) Air B) Table salt
C) Soda D) Brass
 
Answer & Explanation Answer: C) Soda

Explanation:

Here Soda is a Heterogenous Mixture.

 

A Heterogeneous Mixture is a mixture having a non-uniform composition i.e, the mixture contains components in different phases. Using various means, the parts in the mixture can be separated from one another.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank PO

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Q:

In electro - magnetic radiation, which of the following has greater wave - length than visible light

A) Ultra -violet rays B) Infra - red rays
C) Cosmic rays D) x-rays
 
Answer & Explanation Answer: B) Infra - red rays

Explanation:
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Filed Under: Biology

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Q:

What will be output of following c code?

void main()
{
struct bitfield
{
unsigned a:5;
unsigned c:5;
unsigned b:6;

}bit;
char *p;
struct bitfield *ptr,bit1={1,3,3};
p=&bit1;
p++;
clrscr();
printf("%d",*p);
getch();
}

Answer

Output: 12

Explanation:
Binary value of a=1 is 00001 (in 5 bit)
Binary value of b=3 is 00011 (in 5 bit)
Binary value of c=3 is 000011 (in 6 bit)

In memory it is represented as:
Let address of bit1 is 500 which initialize to char pointer p. Since can is one byte data type so p++ will be 501. *p means content of memory location 501 which is (00001100) and its binary equivalent is 12. Hence output is 12.

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Subject: Programming

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