Questions

Q:

What are the different hazards? How do you avoid them?

Answer

There are situations, called hazards, that prevent the next insturction in the instruction stream from executing during its designated clock cycle. hazards reduce the performance from the ideal speedup gained by pipelining.


There are three classes of Hazards:


1. Structural hazards: It arise from resource conficts when the hardware cannot support all possible combinations of instructions simultaniously in overlapped execution.


2. Data Hazards: It arise when an instruction depends on the results of previous instruction in a way that is exposed by the overlapping of instructions in the pipeline.


3.control hazards. it arise from the pipelining of branches and other instructions that chage the PC.

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Subject: Hardware

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Q:

DNA can be found in what Organelles?

A) Chloroplasts and Mitichondria B) Nucleus and Ribosomes
C) Ribosomes and Mitochondria D) Endoplasmic Reticulum and Nucleus
 
Answer & Explanation Answer: A) Chloroplasts and Mitichondria

Explanation:

DNA can be found in 3 Organelles namely Nucleus, Mitochondria in animals and Chloroplasts in plants.

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

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Q:

 In the relational model, relationships between relations or tables are created by using:

A) composite keys. B) determinants.
C) candidate keys. D) foreign keys.
 
Answer & Explanation Answer: D) foreign keys.

Explanation:
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Filed Under: Database

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Q:

Who among the following was an aminent painter

A) Sarada Ukil B) Uday Shankar
C) V.Shanta Ram D) Yusuf Meherally
 
Answer & Explanation Answer: A) Sarada Ukil

Explanation:
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Filed Under: Famous Personalities

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Q:

The Legislature of the USA is known as the 

A) Commons B) Congress
C) Parliament D) Senate
 
Answer & Explanation Answer: B) Congress

Explanation:

The US Congress consists of two bodies 

a) the Senate and   b) the House of Representatives. The Senate, composed of 100 members (two Senators from each State), is a powerful body and exercises a very real influence in national affairs.

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Filed Under: Indian Politics

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Q:

Hot water is poured simultaneously in four metallic tumblers painted outside with different paints. After some time the water will be found to have cooled most in the tumbler painted.

A) rough white B) rough black
C) shining white D) shining black
 
Answer & Explanation Answer: B) rough black

Explanation:

Black surfaces are good emitters of heat. If the black surface is rough too, the emitting will be better. Shinning surfaces reflect black radiation . So if the black surface is also shining the effectiveness of emitting heat is lessened.

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Filed Under: Physics

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Q:

In 1689, which chief of the Maratha Navy effectively controlled the Konkam trade from his headquarters at Kolaba?

Answer

Kanhoji Angre

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Q:

The element that has the highest first ionization potential is.......

A) Oxygen B) Carbon
C) Boron D) Nitrogen
 
Answer & Explanation Answer: D) Nitrogen

Explanation:
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Filed Under: Chemistry

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