Questions

Q:

What is thrashing?

Answer

It is a phenomenon in virtual memory schemes when the processor spends most of its time swapping pages, rather than executing instructions. This is due to an inordinate number of page faults.

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Q:

A UPS connects your computer and a power source.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

A UPS (Uninterruptible Power Supply) is a device that provides battery backup when the electrical power fails or drops to an unacceptable voltage level.


Related image


Small UPS systems provide power for a few minutes; enough to power down the computer in an orderly manner, while larger systems have enough battery for several hours.

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Q:

The book ' Higher Than Hope ' is a book on 

A) Sam Nujoma B) Robert Mugabe
C) Nelson Mandela D) VP Singh
 
Answer & Explanation Answer: C) Nelson Mandela

Explanation:
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Filed Under: General Awareness

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Q:

Why is February 28th celebrated as National Science Day ?

Answer

It was on February 28th, 1928 that CV Raman announced  his discovery of New radiation-subsequently named the Raman Effect- that won him the Noble prize.

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Q:

The concept of carbon credit originated from

A) G-8 Summit, Hciligendamm B) Earth Summit, Rio de Janeiro
C) Montreal Protocol D) Kyoto Protocol
 
Answer & Explanation Answer: D) Kyoto Protocol

Explanation:

The concept of carbon credit for manufacturers originated with the Kyoto Agreement (Protocol) of 1997.

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Filed Under: General Science
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Q:

If the following structure is written to a file using fwrite(), can fread() read it back successfully?

struct emp

{

    char *n;

    int age;

};

struct emp e = { "Sujay",15};

FILE *fp;

fwrite (&e, sizeof (e), 1, fp);

Answer

No, since the structure contains a char pointer while writing the structure to the disk using fwrite() only the value stored in the pointer n would get written. When this structure is read back the address would be read back but it is quite unlikely that the desired string would be present at this address in memory

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Subject: Programming

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Q:

Origins of genetic variation

A) intragenic recombination B) mutation
C) reticulation D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Random mutations are the ultimate source of genetic variation. Mutations are likely to be rare and most mutations are neutral or deleterious, but in some instances, the new alleles can be favored by natural selection. Polyploidy is an example of chromosomal mutation.

 

Mutations are changes in the DNA. A single mutation can have a large effect.

1) mutation - an alteration in DNA sequence, various types

2) intragenic recombination - results in entirely new associations of genes not present in either parental genome.


Two forms of intragenic recombination:

a) crossing over
b) independent assortment
3) reticulation – acquisition of genetic material from unrelated or relatively unrelated sources (e.g., hybrid species, horizontal gene transfer).

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Filed Under: Biology
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Q:

Total Output is a synonym for

A) aggregate demand B) gross domestic product
C) aggregate supply D) equilibrium
 
Answer & Explanation Answer: C) aggregate supply

Explanation:

Total Output is a synonym for Aggregate supply or Initial production.

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Filed Under: Indian Economy
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