Unit 1
Communication and Networking



1. Type of data transmission where bits are sent via an interface one bit at a time over a single wire from source to destination:
serial
parallel
asynchronous
synchronous

2. The exchange of signals between devices to establish their readiness to send or receive data:
transmission
protocol
synchronisation
handshaking

3. If even parity were used, which of the following would cause an error to be generated at the receiving end?
10100101
11111111
10000101
01010101

4. The speed at which data is transmitted serially:
bandwidth
baud rate
modem speed
communication rate

5. The international code .com in a domain name indicates:
a non-commercial organisation
a commercial organisation that trades internationally
a commercial organisation that trades in a single country
an organisation or company that provides Internet access

6. Network where each node is connected to a central host computer which controls the network:
star
bus
ring
loop

7. Transmission mode which uses timing signals to control the rate of transmission:
serial
parallel
synchronous
asynchronous

8. The range of frequencies that can be sent/received:
transmission rate
bit rate
baud rate
bandwidth

9. Device which converts digital signals from the computer into analogue signals which can be transmitted over telephone lines:
router
transducer
modem
gateway

10. Transmission used inside the computer for short distances (up to a few metres) e.g. to printer:
serial
parallel
synchronous
asynchronous


Score =

Correct answers: