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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. An example of simplex communication is a ___________ - which can only receive signals - but will not transmit them.
Television
Parallel
Bus
Synchronous
2. A ___________ protocol transmits data at a fixed rate agreed by the sender and receiver.
Synchronous
Layout
Start
Asynchronous
3. The bus topology connects each computer with its neighbors in a long _____.
Chain
Full duplex
Parallel
Bus
4. Half-duplex communication lets you transmit and receive - but not at _____________.
Printers
The same time
Transmitter clock
Asynchronous
5. When transmitting data by ________ transmission - all the bits of a byte are sent at the same time.
Ring
Parallel
Phone
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
6. 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.
Asynchronous
Parallel
Start
Walkie-talkie
7. Transmissions which send one bit after another are known as ______ transmissions.
Bus
Transmitter clock
Serial
Television
8. Many computers use full-duplex communication. For example - a ______ line - where both parties can talk at the same time.
The same time
Layout
Phone
Ring
9. This is known as bandwidth. Channels with high bandwidth are known as broadband - while channels with low bandwidth are known as ___________.
Printers
Narrowband
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
Asynchronous
10. The topology of a network is the ______ of the communication channels in a communications system.
Parallel
Layout
The same time
Channel
11. Parallel is often used by _________ - and is faster than serial transmission - which sends bytes one at a time - sequentially.
Television
Printers
Channel
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
12. The ____ topology connects each computer to every other computer.
Phone
Television
Mesh
Star
13. 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.
Simplex
Narrowband
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
Walkie-talkie
14. The ____ topology hooks each computer to its neighbor and the last computer to the first - making a loop.
Ring
Parallel
Start
Walkie-talkie
15. A '_______________' is an example of half-duplex communication.
Transmitter clock
Full duplex
Printers
Walkie-talkie
16. ___________ communication lets you send and receive at the same time.
Full duplex
Printers
Star
Simplex
17. An ____________ protocol transmits data with start and stop bits.
Serial
The same time
Mesh
Asynchronous
18. The ____ topology connects all computers directly to one device - usually a switch.
Star
Channel
Parallel
Synchronous
19. 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.
Serial
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
Start
Mesh
20. The ______________ processors that would typically be found in a larger organization include the front-end processor - concentrator - controller and multiplexer.
Parallel
Communications
Bus
Synchronous
21. Examples of network topologies include the star - ring - ____ - and mesh topologies.
Chain
Printers
Bus
Start
22. The multiplexer is a device that allows a single communications ________ to carry data transmissions from many sources at the same time.
Channel
Narrowband
The same time
Communications
23. Bandwidth is the amount of data that can be sent over a ______________ channel line in one second.
Layout
Simplex
Chain
Communications
24. 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
Transmitter clock
Communications
Serial
Communications
25. _______ communication allows you to transmit or receive - but not both.
Parallel
Simplex
Narrowband
Layout