Questions

Q:

What is fragmentation? Different types of fragmentation?

Answer

Fragmentation occurs in a dynamic memory allocation system when many of the free blocks are too small to satisfy any request. 


External Fragmentation: External Fragmentation happens when a dynamic memory allocation algorithm allocates some memory and a small piece is left over that cannot be effectively used. If too much external fragmentation occurs, the amount of usable memory is drastically reduced. Total memory space exists to satisfy a request, but it is not contiguous. 


Internal Fragmentation: Internal fragmentation is the space wasted inside of allocated memory blocks because of restriction on the allowed sizes of allocated blocks. Allocated memory may be slightly larger than requested memory; this size difference is memory internal to a partition, but not being used

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Q:

How do you detect a sequence of "1101" arriving serially from a signal line?

Answer

A SIPO and AND gate circuit can detect this sequence.The output of SIPO is connected to a four input AND gate ,the third SIPO output should be connected through a NOT gate.When the 1101 sequence is loaded in to the SIPO the AND output goes HIGH otherwise keeps LOW.

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Subject: Hardware

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Q:

Give an example of one address microprocessor?

Answer

8085 is a one address microprocessor. In 8085 interrupts  are classified by software and hardware interrupts.

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Subject: Hardware

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Q:

______ Tribunal has banned the use of Chinese 'Kite' strings made of nylon or any other synthetic material in India from July 2017 ?

A) National Green Tribunal B) National Consumer Dispute Redressal Commission
C) Industrial Tribunals D) Central Administrative Tribunal
 
Answer & Explanation Answer: A) National Green Tribunal

Explanation:

1. The National Green Tribunal banned the use of ‘Chinese’ kite strings, made of nylon or any synthetic material on the grounds that it poses threat to life and environment.

2. The Tribunal directed all state governments to prohibit the “manufacture, sale, storage, purchase and use” of synthetic manja or nylon threads and all other synthetic strings used for flying kites with immediate effect.

3. A bench headed by NGT Chairperson Justice Swatanter Kumar ordered the authorities to ban import of any synthetic manja.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT

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Q:

Q = mcdT refers to

A) Enthalpy formula B) Heat Transfer formula
C) Specific Heat formula D) Heat of Vaporization
 
Answer & Explanation Answer: C) Specific Heat formula

Explanation:

Q = mc∆T refers to Specific Heat formula.

 

When heat energy is added to a substance, the temperature will change by a certain amount.

The relationship between heat energy and temperature is different for every material, and the specific heat is a value that describes how they relate.

 

Q = mc∆T

 

Q = heat energy (Joules, J)

m = mass of a substance (kg)

c = specific heat (units J/kg∙K)

∆T = change in temperature (Kelvins, K)

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

Highest sugarcane producing state in India?

A) Maharashtra B) Uttar Pradesh
C) Gujarat D) Uttarakhand
 
Answer & Explanation Answer: B) Uttar Pradesh

Explanation:

Agriculture is the occupation of a majority of the Indian population. More than 65% of India's land area is under agriculture.

Sugarcane is one of the most popular multipurpose crops in India and no part of the sugarcane goes waste.

Uttar Pradesh is the highest sugarcane producing state in India followed by Maharashtra.

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Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Which country has been unanimously elected as the President of the UN-Habitat  ?

A) Russia B) India
C) China D) Japan
 
Answer & Explanation Answer: B) India

Explanation:

India has been unanimously elected as the President of the UN-Habitat. UN-Habitat, an organ of the United Nations’ Organisation (UNO) reports to the United Nations General Assembly. UN-Habitat  promotes socially and environmentally sustainable human settlements across the world. India has been elected as the President of UN-Habitat after a gap of 10 years. This is only the third time that India has been elected as the President of UN-Habitat after 2007 and 1988. The UN-Habitat was established in 1978.

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Filed Under: World Organisations
Exam Prep: Bank Exams , CAT , GATE

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Q:

"World Television Day" is observed every year on ___.

A) Nov 21 B) Oct 22
C) Sep 23 D) Aug 24
 
Answer & Explanation Answer: A) Nov 21

Explanation:
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Filed Under: Important Days and Years
Exam Prep: AIEEE , Bank Exams , CAT
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