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Database Administration Questions

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Q:

Default read write and execute permissions given to a file for owner, group and others are

A) 6-4-4 B) 6-4-2
C) 6-4-6 D) 6-6-6
 
Answer & Explanation Answer: A) 6-4-4

Explanation:

Default permissions given to a file are:

Owner - read write and execute - 6

group - write - 4

others - write - 4

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Filed Under: Operating Systems
Job Role: Database Administration

6 5718
Q:

A DVD is an example of

A) Optical Disc B) Hard Disc
C) Output Device D) Solid state storage device
 
Answer & Explanation Answer: A) Optical Disc

Explanation:

A DVD is an example of Optical Disc.

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

7 5688
Q:

Count function in SQL returns the number of

A) groups B) values or rows
C) columns D) distinct values
 
Answer & Explanation Answer: B) values or rows

Explanation:

Count function in SQL returns the number of values or rows.

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Filed Under: Oracle Certification
Job Role: Database Administration , IT Trainer

36 5682
Q:

LCD of 12 and 18

A) 36 B) 42
C) 12 D) 6
 
Answer & Explanation Answer: A) 36

Explanation:

  LCD is nothing but Lowest or Least Common Denominator

 

Here LCD of 12 and 18 means LCD of two fractions with denominators 12 and 18 respectively.

 

Therefore, LCM of 12 & 18 = 6 x 3 x 2 = 36 

 

      •  How to calculate LCD ::


The lowest common denominator or least common denominator (LCD) is the least common multiple (LCM) of the denominators of a set of fractions.

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Filed Under: HCF and LCM
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: IT Trainer , Database Administration , Bank PO , Bank Clerk

27 5658
Q:

Power Point presentation is a collection of

A) Outlines B) Slides and Handouts
C) Speaker’s notes D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Power Point presentation is a collection of Slides and Handouts, Outlines and Speaker’s notes.

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

3 5651
Q:

Which of the following type casts will convert an Integer variable named amount to a Double type ?

A) (int to double) amount B) int (amount) to double
C) int to double(amount) D) (double) amount
 
Answer & Explanation Answer: D) (double) amount

Explanation:
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Filed Under: C++
Job Role: Analyst , Database Administration , IT Trainer , Project Manager

6 5650
Q:

As compared to diskettes, the hard disks are

A) More portable B) Slowly accessed
C) More expensive D) Less rigid
 
Answer & Explanation Answer: C) More expensive

Explanation:

As compared to diskettes, the hard disks are more expensive.

As_compared_to_diskettes,_the_hard_disks_are1557378986.jpg image

A diskette is a RAM, removable data storage medium that can be used with personal computers. It is also known as Floppy or Floppy disk. It is composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic enclosure lined with fabric that removes dust particles.

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

7 5645
Q:

Two main measures for the efficiency of an algorithm are

A) Time and Space B) Complexity and Memory
C) Data and Space D) Memory and Processor
 
Answer & Explanation Answer: A) Time and Space

Explanation:

Two main measures for the efficiency of an algorithm are Time and Space.

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Filed Under: Programming
Job Role: Database Administration , IT Trainer

26 5629