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01229020/KMS/SPEC 2017

Information Technology
Paper 02 – General Proficiency
Key and Mark Scheme
SPECIMEN PAPER

SO Question Key Mark
4.

1.9 (a)
Used to send messages to the
Switch right computer on a single
network

Used when we wish to connect
Router two different networks
together

Type of wired transmission
Twisted Pair media which is used on local 5
area networks

Converts analogue signals to
Modem digital and digital signals to
analogue

Prepares data, sends data,
receives data, and controls
Network Interface Card data flow between a computer
and the network to which it is
connected

(b) Advantage – reducing clutter by reducing wires; allowing
her to print from anywhere in her home rather than
needing to take the device and connect it to her
printer; easier installation of new devices (provided
they are wireless compatible); allowing her to print
from the mobile phone and tablet which would not have
traditional printing ports etc. [2 marks for identifying
and explaining ANY ONE advantage] 4

Disadvantages – Can require greater care in relation to
security as the transmission media lends itself more
easily to interception; Some persons have concerns
related to their health and wireless signals in their
homes.[2 marks for identifying and explaining ANY ONE
disadvantage]

(c) WiFi 1