CS quiz

Which type of transmission are being described:

Data is sent one bit at a time in one direction only

• serial, simplex data transmission

• parallel, full-duplex data transmission

• serial, half-duplex data transmission

• serial, full-duplex data transmission

Which type of transmission are being described:

Data is being sent 16 bits at a time in both direction simultaneously

• parallel, full-duplex data transmission

• serial, full-duplex data transmission

• cereal, simplex data transmission

• parallel, half-duplex data transmission

Which type of transmission are being described:

Data is sent one bit at a time in both directions but not at the same time

• paralell, half-duplex data transmission

• parallel, half-duplex data transmission

• parallel, simplex data transmission

• serial, half-duplex data transmission

an USB cable consists of how many wires?

• 1

• 2

• 3

• 4

True or false:

USB uses serial data transfer

• True

• False

True or false:

Serial data transmission suffers from data skewing

• True

• False

True or false:

Packet switching prevents loss of any data packets

• True

• False

a data error occurring when data arrives at the destination out of synchronisation

What is meant by the term ciphertext when used in encryption?

• an encryption or decryption algorithm

• an encrypted message

• a type of session key

• another name of plaintext

• text following an encryption algorithm

Which of the following describes the check where the receiving computer sends back a copy of the data to the sending computer to allow it to compare the data?

• echo check

• parity check

• automatic repeat requestion

• check digit

• checksum