Online Quiz for IT Officer Professional Knowledge

Q 1)

f the period of a signal is 1000 ms, then what is its frequency in kilohertz

A) 10–3 KHz

B) 10–2 KHz

C) 10–1 KHz

D) 1 KHz

E) None of these

Q 2)

Which of the following interrupt is non maskable



B) RST 7.5

C) RST 6.5


E) None of these

Q 3)

  In siding window technique window size is maintain at


A) Sender side

B) Receiver Side

C) Both sender and receiver side

D) Fixed size window is not maintained

E) None of these

Q 4)

  Index sequential file consist of

A) Data file, Index file only

B) Data file,overflow area, index file

C) Data file, overflow

D) Only overflow area

E) None of these

Q 5)

Frequency shift keying is used mostly in

A) Radio transmission

B) Telegraphy

C) Telephone

D) Internet

E) None of the above

Q 6)

Schema of data base define

A) Structure of database

B) Format of database

C) Data type of data in database

D) All of the above

E) None of the above

Q 7)

Pendrive is a Secondary Memory which use the technique of


A) Flash Memory

B) Magnetic Memory

C) Optical Memory

D) None of these

E) only a and b

Q 8)

Inode is used in ---------- record File information

A) MS Dos

B) Unix

C) Window 2000

D) All of the above

E) None of these

Q 9)

Which of the following relational algebra operations do not require the participating tables to be union-compatible?

A) Union

B) Intersection

C) Difference

D) Join

E) None of these

Q 10)

Error detection is usually done in the __________ layer of the OSI model.


A) physical

B) data link

C) network

D) any of the above

E) None of these