CS revision chapter 2,3 & 4
Authored by DOREEN Beh
Computers
8th - 11th Grade
45 Questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which is true about data packet?
message or data is sent in a big packet with plug in USB
a small part of a message or data that is transmitted over a network
after transmission all the data packets are reassembled to form the original message or data
all of the above
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
an error checking method in which all the 1-bits in the data packet payload are added and the total is stored in the packet trailer; the same calculation is repeated at the receiving station. What is this statement refer to?
cyclic redundancy check (CRC)
data packet
router
simplex
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What is packet switching?
a method of transferring data via USB
a method of network wiring
a method of transmission in which a message is broken into many data packets which can then be sent along pathway independently of each other
all of the above
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Data packet contain a header. Which are the below components find in header?
IP address of the source device (sender)
IP address of the destination device (receiver)
sequence number of the packet (allowing correct reassembly)
all of the above
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
When data can be sent in ONE DIRECTION ONLY, what mode is this called?
transmission mode
full-duplex
half-duplex
simplex
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
When data is sent in BOTH DIRECTIONS but NOT AT THE SAME TIME. What mode is this called?
transmission mode
full-duplex
half-duplex
simplex
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
When data can be sent in BOTH DIRECTIONS AT THE SAME TIME. What mode is this called?
transmission mode
full-duplex
half-duplex
simplex
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