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Test your basic knowledge |
IT: Communication Protocols
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 25 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The bus topology connects each computer with its neighbors in a long _____.
Channel
Walkie-talkie
Star
Chain
2. Examples of network topologies include the star - ring - ____ - and mesh topologies.
Bus
Communications
Communications
Printers
3. The ____ topology hooks each computer to its neighbor and the last computer to the first - making a loop.
Synchronous
Channel
Ring
Star
4. Half-duplex communication lets you transmit and receive - but not at _____________.
Television
Parity [Explanation: With an even parity protocol - it would either add a 1 - to make the byte have an even number of 1 bits or a 0 if the byte already has an even number of 1 bits. With an odd parity protocol - it would either add a 1 - to make the
Ring
The same time
5. A ___________ protocol transmits data at a fixed rate agreed by the sender and receiver.
Transmitter clock
Parity [Explanation: With an even parity protocol - it would either add a 1 - to make the byte have an even number of 1 bits or a 0 if the byte already has an even number of 1 bits. With an odd parity protocol - it would either add a 1 - to make the
Synchronous
Full duplex
6. ___________ communication lets you send and receive at the same time.
Transmitter clock
Ring
Full duplex
Star
7. Bandwidth is the amount of data that can be sent over a ______________ channel line in one second.
Star
Chain
Communications
The same time
8. When transmitting data by ________ transmission - all the bits of a byte are sent at the same time.
Parallel
Phone
Ring
Simplex
9. An ____________ protocol transmits data with start and stop bits.
Printers
Parallel
Transmitter clock
Asynchronous
10. The topology of a network is the ______ of the communication channels in a communications system.
Phone
The same time
Chain
Layout
11. Parallel is often used by _________ - and is faster than serial transmission - which sends bytes one at a time - sequentially.
Serial
Printers
Phone
Bus
12. _______ communication allows you to transmit or receive - but not both.
Simplex
The same time
Parallel
Television
13. The ____ topology connects each computer to every other computer.
Transmitter clock
Chain
Phone
Mesh
14. One way of checking if a transmitted byte was sent accurately is by using a ______ bit - which has information on the number of 1 bits.
Printers
Ring
Simplex
Parity [Explanation: With an even parity protocol - it would either add a 1 - to make the byte have an even number of 1 bits or a 0 if the byte already has an even number of 1 bits. With an odd parity protocol - it would either add a 1 - to make the
15. The ____ topology connects all computers directly to one device - usually a switch.
Star
Synchronous
Parallel
Ring
16. Most computers use an asynchronous protocol. Before each byte sent - it transmits a start bit - and after each byte - it transmits a stop bit. Without these bytes - the receiving device would not know when to start listening and when to stop - causin
Full duplex
Bus
Chain
Transmitter clock
17. Transmissions which send one bit after another are known as ______ transmissions.
Walkie-talkie
Star
Asynchronous
Serial
18. Synchronous protocol does not need a ______ and stop bit to show the beginning and end of a byte - since it sends each byte at the rate agreed upon.
Ring
Narrowband
Start
Parallel
19. Many computers use full-duplex communication. For example - a ______ line - where both parties can talk at the same time.
Ring
Asynchronous
Phone
Printers
20. This is known as bandwidth. Channels with high bandwidth are known as broadband - while channels with low bandwidth are known as ___________.
Communications
Ring
Phone
Narrowband
21. The ______________ processors that would typically be found in a larger organization include the front-end processor - concentrator - controller and multiplexer.
Parity [Explanation: With an even parity protocol - it would either add a 1 - to make the byte have an even number of 1 bits or a 0 if the byte already has an even number of 1 bits. With an odd parity protocol - it would either add a 1 - to make the
Narrowband
Communications
Synchronous
22. These are known as serial transmissions. You can speed this up by using _________ transmission - which all of the bits in a byte are sent at the same time.
Serial
Start
Phone
Parallel
23. The multiplexer is a device that allows a single communications ________ to carry data transmissions from many sources at the same time.
Parallel
Phone
Chain
Channel
24. A '_______________' is an example of half-duplex communication.
Ring
Television
Synchronous
Walkie-talkie
25. An example of simplex communication is a ___________ - which can only receive signals - but will not transmit them.
Parallel
Simplex
Television
Communications