Questions

Q:

For every relationship, how many possible types of actions are there when enforcing minimum cardinalities?

A) Two B) Three
C) Four D) Six
 
Answer & Explanation Answer: D) Six

Explanation:
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Filed Under: Database

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Q:

RAM is ____ and ____

A) volatile, temporary B) nonvolatile, permanent
C) nonvolatile, temporary D) volatile, permanent
 
Answer & Explanation Answer: A) volatile, temporary

Explanation:
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Filed Under: Computer
Exam Prep: Bank Exams

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Q:

Carbon monoxide is a common atmospheric pollutant.

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

Explanation:

Carbon monoxide is one of the major pollutant present in the world. The six most common pollutants include ozone, carbon monoxide, sulfur dioxide, lead, nitrogen oxides, and particulate matter.


 


Carbon monoxide is a common atmospheric pollutant. It is produced largely in combustion processes like in industries and in vehicles. It is a gas that cannot be seen nor smelled.

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

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Q:

Which award the Electronic Vaccine Intelligence Network (EVIN) app won in 2017 ?

A) Padma Award B) GSMA Asia Mobile Award
C) Best app of the year D) National Award
 
Answer & Explanation Answer: B) GSMA Asia Mobile Award

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

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Q:

United Nations adopted a charter of Economic Rights in the year

A) 1956 B) 1964
C) 1969 D) 1974
 
Answer & Explanation Answer: D) 1974

Explanation:
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Q:

Who discovered the solar system

A) Copernicus B) Kepler
C) Aryabhatta D) Newton
 
Answer & Explanation Answer: A) Copernicus

Explanation:
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Filed Under: World Geography

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Q:

Logical puzzle

There are only two barbers in town. One of them has a nice, neatly trimmed head of hair. The other one's hair is a complete mess.Which of the two barbers should you go to and why?

Answer

The one with messy hair, as they cut the neat barber's hair.

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Subject: Logic Puzzles

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Q:

What are set up time & hold time constraints? What do they signify? Which one is critical for estimating maximum clock frequency of a circuit?

Answer

Suppose your flip-flop is positive edgetriggered. time for which data should be stable prior to positive edge clock is called setup is called setup time constraint.


Time for which data should be stable after the positive edge of clock is called as hold time constraint.


If any of these constraints are violate d then flip-flop will enter in meta stable state, in which we cannot determine the output of flip-flop.


there are two equation:


1. Tcq + Tcomb > Tskew + Thold


2. Tcq + Tcomb > Tskew + T - Tsetup


Tcq is time delay when data enters the flip flop and data comes at output of flip flop.


Tcomb is the logic delay between two flip flop.


Tskew is the delay of clock to flip flop: suppose there are two flip flop, if clock reaches first to source flip flop and then after some delay to destination flip flop, it is positive skew and if vice versa then negative  skew. 


so if you take 2 eq you will see that setup time is the determining factor of clock's time period.

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Subject: Hardware

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