3o Standards & Protocols

Question 0

Additional hardware will need to be purchased for the salon’s MIS to run on.
Describe what is meant by a standard.(2 marks)

Answer 0

 a set of rules (1) used to ensure the correct transfer of data
between devices(1)
 a set of rules (1) allow devices to work together (1)
 A benchmark (1) that ensures minimum performance level

Question 1

Describe what is meant by a protocol(2 marks)

Answer 1

 a standard set of rules (1)
 used to ensure the proper transfer of data between device
 standard methods for communicating electronically (1)
 govern the exchange of data (1)
 allow devices to work together (1)

Question 2

Explain two reasons why standards are important when purchasing the additional hardware(4 marks)

Answer 2

Two from, two marks each:
 Devices can be purchased from different manufactures (1)
and known to work together /additional hardware not
required(1)
 Allows competition between manufacturers (1) giving better
value for money/choice/lower price/innovation (1)  Performance level guaranteed (1) no need to test
yourself/know performance will meet requirements (1)

Question 3

Describe what is meant by a protocol.(2 marks)

Answer 3

Two from:
 a standard set of rules (1)
 used to ensure the proper transfer of data between devices
(1)
 standard methods for communicating electronically (1)
 govern the exchange of data (1)
 allow devices to work together (1)

Question 4

Describe how protocols are used within a network(4 marks)

Answer 4

Four from:
 define what control signals are used (1)
 used to indicate the sending device has finished sending (1)
 determine error checking to be used (1)
 determine any compression methods (1)
 indicates destination address (1)
 used to indicate the receiving device has received data (1)
 TCP/IP defines how signals are sent across the internet enabling users to communicate with each other (1)
 SMTP governs the sending of emails between devices (1)
 PPP governs how two computers that are directly connected
to each other should communicate (1)
[4]