Database Administration Questions


Q:

Which of the following is the largest unit of information?

A) 1 TB B) 1 GB
C) 1 MB D) 1 KB
 
Answer & Explanation Answer: A) 1 TB

Explanation:

1 TB  >  1 GB  >  1 MB  >  1 KB

 

1 Tb (Tera Byte) = 1024 GB

 

1 GB (Giga Byte) = 1024 MB

 

1 MB (Mega Byte) = 1024 KB

 

1 KB (Kilo Byte) = 1024 Bytes

 

1 Byte = 8 Bit

 

Hence, largest unit of information is TB (Tera Byte) and smallest unit of information is Bit.

 

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4 3419
Q:

Multiple users can share a local temporary table

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

Explanation:

Multiple users can't share a local temporary table

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Q:

Which protocol does ping use?

A) ICMP B) TCP
C) BootP D) ARP
 
Answer & Explanation Answer: A) ICMP

Explanation:

ICMP means Internet Control Message Protocol and is always coupled with the IP protocol (There are 2 ICMP variants one for IPv4 and one for IPv6.) echo request and echo response are the two operation codes of ICMP used to implement ping.

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4 3414
Q:

Google has introduced a new app named what that allows anybody to submit stories for and about their communities?

A) Bulletin B) Allo
C) FastRead D) Google Express
 
Answer & Explanation Answer: A) Bulletin

Explanation:
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2 3402
Q:

Makaibari is the costliest variety of what?

A) Coffee B) Pepper
C) Tea D) Water
 
Answer & Explanation Answer: C) Tea

Explanation:

Makaibari is the world's first tea factory and was established in 1859 in Darjeeling, West Bengal. 

 

It is most expensive tea in India which costs around 1.12 lakhs for 1 kg of tea.

 

Hence, Makaibari is the costliest variety of Tea.

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6 3400
Q:

What is immutable object? Can you write immutable object ?

Answer

Immutable classes are Java classes whose objects can not be modified once created. Any modification in Immutable object result in new object. For example is String is immutable in Java. Mostly Immutable are also final in Java, in order to prevent sub class from overriding methods in Java which can compromise Immutability. You can achieve same functionality by making member as non final but private and not modifying them except in constructor.

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3 3381
Q:

Hard Drive capacity is measured in

A) Newton B) GB
C) THz D) Gwallior
 
Answer & Explanation Answer: B) GB

Explanation:

Hard drive or disc is used to store the users information and its capacity is measured in Giga Bytes (GB) and Tera Bytes (TB).

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12 3373
Q:

What place is designated as 0 degrees longitude?

A) Greenwich B) Prime meridian
C) Tibet D) Norway
 
Answer & Explanation Answer: A) Greenwich

Explanation:

The place which is designated as 0 degrees longitude is Greenwich, England.

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