1) Which is the smallest addressable unit of memory?

a) 1 bit
b) 1 byte
c) 1 word

Answer is 1 bit

2) What is the size of the memory unit, WORD ?

a) CPU specific
b) 1 byte
c) 2 bytes

Answer is CPU specific

3) How many bytes make one Octet ?

a) 2
b) 1
c) 8

Answer is 1
 
4) Which layer of OSI is responsible for Modulation and Demodulation?

a) Physical layer
b) Data link layer
c) Network layer

Answer is Physical layer