Questions

Q:

The capacity to change the conceptual schema without having to change external schemas or application programs is called

A) Physical Data Independence B) Logical Data Independence
C) Both A and B D) None
 
Answer & Explanation Answer: B) Logical Data Independence

Explanation:

LDI is the capacity to change the conceptual schema without having to change external schemas or application programs.

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Filed Under: Database
Job Role: Database Administration

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Q:

What is the Translation Lookaside Buffer (TLB)?

Answer

In a cached system, the base addresses of the last few referenced pages is maintained in registers called the TLB that aids in faster lookup. TLB contains those page-table entries that have been most recently used. Normally, each virtual memory reference causes 2 physical memory accesses- one to fetch appropriate page-table entry, and one to fetch the desired data. Using TLB in-between, this is reduced to just one physical memory access in cases of TLB-hit.

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Q:

George is very open with his team members. He invites questions and discussion, and encourages new suggestions and ideas. He considers all this carefully before making any but the most minor project decisions, but ultimately chooses the course he personally believes is the right one. His leadership style is best characterized as

A) Democratic B) Consultative
C) Participative D) Benevolent
 
Answer & Explanation Answer: C) Participative

Explanation:

The Participative leadership style is characterized by 1) allowing a great deal of freedom in identifying problems and solutions, 2) working closely with subordinates, 3) allows extensive participation, but 4) reserving to him/herself the final decision. The consultative style is not so open, with discussion more focused around the leader’s uncertainties than asking for new ideas.

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Filed Under: PMP Certification

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Q:

The words Satyameve Jayate in the state Emblem of India have been adopted from which one of the following

A) Mundak Upanishad B) Brahma Upanishad
C) Mudgala Upanishad D) Maitreyi Upanishad
 
Answer & Explanation Answer: A) Mundak Upanishad

Explanation:
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Filed Under: Indian History

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Q:

Which helps prevent errors in DNA replication?

A) Complementary base pairing reduce errors B) DNA ligase checks the DNA for errors
C) DNA is located in the ribosomes D) Any base can pair with any other base
 
Answer & Explanation Answer: A) Complementary base pairing reduce errors

Explanation:

DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the basis for biological inheritance. Complementary base pairing helps prevent errors in DNA replication.

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

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Q:

Which best describes a tetrad?

A) A diploid cell B) Two gametes
C) Four chromatids D) A haploid cell
 
Answer & Explanation Answer: C) Four chromatids

Explanation:

A tetrad is best described by Four chromatids. It is formed from two homologous chromosomes, each consisting of two chromatids in the first stage of meiosis called prophase1.

 

A_tetrad_is_made_up_of1562827273.jpg image

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

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Q:

A balloon filled with hydrogen will

A) continue going upwards uninterrupted B) reach a particular height and remain floating
C) burst after reaching some height D) reach a particular height and start coming down
 
Answer & Explanation Answer: B) reach a particular height and remain floating

Explanation:

It will stop at a height where the weight of the balloon with contents is equal to the weight of air displaced by it, i.e , when the upthrust is equal to the downthrust. The question of bursting will depend on how much difference of pressure inside and outside , the material of the balloon can withstand. It is assumed the balloon is filled with a lighter than air gas like hydrogen or helium.

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Filed Under: Physics

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Q:

Which of the following memory is volatile?

A) RAM B) Floppy disc
C) ROM D) Magnetic tape
 
Answer & Explanation Answer: A) RAM

Explanation:

Volatile memory is computer memory that requires power to maintain the stored information. It is a temporary memeory which cannot contain information permanently.

Example :: RAM or Random Access Memory

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