DNS in the Internet

DNS is  a protocol that can be used in different platforms.

In the Internet the Domain Name Space is divided into three different sections :

1) Generic domains

2) Country domains and

3) The Inverse domains

1) Generic domains:-
The generic domains define registered hosts to their generic behavior.

Generic domain labels are as follow:-

aero :-   Airlines and aerospace companies

biz    :-   Businesses or firms

com   :-   Commercial organizations

coop   :-  Cooperative business organizations

 edu    :-  Educational institutions

gov      :-  Government institutions

info     :-   Information service provides

int       :-  International organizations

mil      :-  Military groups

museum :- Museums  and other non profit organizations

name    :-  Personal names (individuals)

net      :- Network support  centers

org     :-  Non profit organizations

pro     :-  Professional individual organizations


2) Country domains:-
The country domains section uses two - character country abbreviations.
Example :-
us  :-  United States

in  :-   India

uk  :- United Kingdom

Second labels can be organizational ,or they can be more specific , national designations.
The United States ,for example , uses state abbreviations as a subdivisions of us example ca.us


3) Inverse domains:-
The inverse domain is used to map an address to a name .the convention of reading domain labels from bottom to top ,an IP address such as 132.34.45.121 is read as 121.45.34.132.

More General Knowldge questions

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1)  Dyslexia is associated with
A)  mental disorder
B)  behavioral disorder
C)  reading disorder
D)  writing disorder

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2) One writes numbers from 50 to 99 without the digits 2 and 7 .How many numbers have been written?
A) 32
B) 36
C) 40
D) 38

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3) If a large diamond is cut up into little bits, it will lose its value just as an army is divided up into small units of soldiers,it loses its strength".

The argument put above may be called as

A) Analogical
B) Deductive
C) Statistical
D) Causal

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4)Complete the series BB,FE,II,MLPP,..............by chossing one of the following option given :
A) TS
B) ST
C) RS
D) SR

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5) In a post office ,stamps of three different denominations of Rs 7 ,Rs 8 ,Rs 10 are available .The exact amount for which one cannot buy stamps is
A) 19
B) 20
C) 23
D) 29

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6) If the series 4,5,8,13,14,17,22,.....is contained in the same pattern , which one of the following is not a term of this series?
 A) 31
 B) 32
 C) 33
 D) 35

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7) In certain coding method ,the word QUESTION is encode as DOMESTIC .In this coding ,what is teh code word for the word RESPONSE ?
A) OMESUCEM
B) OMESICSM
C) OMESICEM
D) OMESISCM

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8) A man started walking from his house towards south .After walking 6 km, he turned to his left and walked 5 km. Then he walked further 3 km after turning left.He the turned to his left and continued his walk for 9 km .How far is he away from his house?
A) 3 km
B) 4 km
C) 5 km
D) 6 km

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9) When a computer is booting ,BIOS is loaded to the memory by,
A) RAM
B) ROM
C) CD-ROM
D) TCP

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10) Which one of the following is not the same as the other three?
A) MAC address
B) Hardware address
C) Physical address
D) IP address

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11) Identify the IP address From the following :
A)  300 . 215 . 317 . 3
B) 302 .  215 @ 417 .5
C) 202 . 50 . 20 . 148
D) 202 - 50 - 20 - 148

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12) Which one of the following is not a/an image /graphic file format?
A) PNG
B) GIF
C) BMP
D) GUI

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13) The first  web browser is
A) Internet Explorer
B) Netscape
C) World Wide Web
D) Firefox

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14) The acronym FTP stands for
A) File Transfer Protocol
B) Fast Transfer Protocol
C) File Tracking Protocol
D) File Transfer Procedure

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15) Which one of the following green house gases has the shortest residence time in the atmosphere
A) Chlorofluorocarbon
B) Carbon dioxide
C) Methane
D) Nitrous oxide

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