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