Exercise 2

Question 1 :

'.JPG' extension refers usually to what kind of file?


A). System file
B). Animation/movie file
C). MS Encarta document
D). Image file
Answer : Option D

Question 2 :

What does AM mean?


A). Angelo marconi
B). Anno median
C). Amplitude modulation
D). Amperes
Answer : Option C

Explanation :

Amplitude modulation was the first type to be used in radio. It works well with HF and morse code.


Question 3 :

In what year was the "@" chosen for its use in e-mail addresses?


A). 1976
B). 1972
C). 1980
D). 1984
Answer : Option B

Question 4 :

'.TXT' extension refers usually to what kind of file?


A). Text File
B). Image file
C). Audio file
D). Adobe Acrobat file
Answer : Option A

Question 5 :

What was the first ARPANET message?


A). "lo"
B). "hello world"
C). "mary had a little lamb"
D). "cyberspace, the final frontier"
Answer : Option A