Questions

Q:

 The HAVING clause does which of the following?

A) Acts like a WHERE clause but is used for groups rather than rows. B) Acts like a WHERE clause but is used for rows rather than columns.
C) Acts like a WHERE clause but is used for columns rather than groups. D) Acts EXACTLY like a WHERE clause.
 
Answer & Explanation Answer: A) Acts like a WHERE clause but is used for groups rather than rows.

Explanation:
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Filed Under: Database

3 8844
Q:

Explain the popular multiprocessor thread-scheduling strategies.

Answer

  1. Load Sharing: Processes are not assigned to a particular processor. A global queue of threads is maintained. Each processor, when idle, selects a thread from this queue. Note that load balancing refers to a scheme where work is allocated to processors on a more permanent basis.

  2. Gang Scheduling: A set of related threads is scheduled to run on a set of processors at the same time, on a 1-to-1 basis. Closely related threads / processes may be scheduled this way to reduce synchronization blocking, and minimize process switching. Group scheduling predated this strategy.

  3. Dedicated processor assignment: Provides implicit scheduling defined by assignment of threads to processors. For the duration of program execution, each program is allocated a set of processors equal in number to the number of threads in the program. Processors are chosen from the available pool.

  4. Dynamic scheduling: The number of thread in a program can be altered during the course of execution.

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9 8843
Q:

In the following question, choose the word opposite in meaning to the given word.

 

Elegance

A) vehemence B) fragrance
C) graceless D) ostentatious
 
Answer & Explanation Answer: C) graceless

Explanation:
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Filed Under: English
Exam Prep: Bank Exams

0 8837
Q:

As the economy develops, the share of the tertiary sector in the GDP

A) Decrease B) Decrease than Increase
C) Increases D) Remain Constant
 
Answer & Explanation Answer: C) Increases

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Filed Under: Indian Economy

21 8833
Q:

Computer storage units smallest to largest?

Answer

The smallest unit of data storage in a computer is called Bit (Binary Digit). Half a byte (four bits) is called a Nibble.


 


1 bit (binary digit) = the value of 0 or 1


8 bits = 1 byte


1024 bytes = 1 kilobyte


1024 kilobytes = 1 megabyte


1024 megabytes = 1 gigabyte


1024 gigabytes = 1 terabyte


1024 terabytes = 1 petabyte


 


Hence, Computer storage units smallest to largest i.e, in ascending order is


 1 bit  <  1 byte  <  1 KB  <  1 MB  <  1 GB  <  1TB  <  1 PB.

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9 8828
Q:

Positive ions are formed from neutral atoms by loss of

A) neutrons B) protons
C) nuclear charge D) electrons
 
Answer & Explanation Answer: D) electrons

Explanation:
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Filed Under: Chemistry

21 8826
Q:

In diseases like Polio, the cells that get destroyed by virus, are

A) Monocytes B) Erythrocytes
C) Motor neurons D) Sensory neurons
 
Answer & Explanation Answer: C) Motor neurons

Explanation:
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Filed Under: Biology

42 8807
Q:

Who was the first Indian to qualify for olympics?

A) Shiny Abraham B) PT Usha
C) Karnam Malleshwari D) Jyotirmony Sikdar
 
Answer & Explanation Answer: B) PT Usha

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Filed Under: Sports

19 8807