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1 | |
The _______ is the physical path over which a message travels. |
|
| | A) | Protocol |
| | B) | Medium |
| | C) | Signal |
| | D) | All the above |
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2 | |
The information to be communicated in a data communications system is the _______. |
|
| | A) | Medium |
| | B) | Protocol |
| | C) | Message |
| | D) | Transmission |
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3 | |
Frequency of failure and network recovery time after a failure are measures of the _______ of a network. |
|
| | A) | Performance |
| | B) | Reliability |
| | C) | Security |
| | D) | Feasibility |
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4 | |
An unauthorized user is a network _______ issue. |
|
| | A) | Performance |
| | B) | Reliability |
| | C) | Security |
| | D) | All the above |
|
5 | |
Which topology requires a central controller or hub? |
|
| | A) | Mesh |
| | B) | Star |
| | C) | Bus |
| | D) | Ring |
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6 | |
Which topology requires a multipoint connection? |
|
| | A) | Mesh |
| | B) | Star |
| | C) | Bus |
| | D) | Ring |
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7 | |
Communication between a computer and a keyboard involves ______________ transmission. |
|
| | A) | simplex |
| | B) | half-duplex |
| | C) | full-duplex |
| | D) | automatic |
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8 | |
A television broadcast is an example of _______ transmission. |
|
| | A) | simplex |
| | B) | half-duplex |
| | C) | full-duplex |
| | D) | automatic |
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9 | |
A _______ connection provides a dedicated link between two devices. |
|
| | A) | point-to-point |
| | B) | multipoint |
| | C) | primary |
| | D) | secondary |
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10 | |
In a _______ connection, more than two devices can share a single link. |
|
| | A) | point-to-point |
| | B) | multipoint |
| | C) | primary |
| | D) | secondary |
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11 | |
In _______ transmission, the channel capacity is shared by both communicating devices at all times. |
|
| | A) | simplex |
| | B) | half-duplex |
| | C) | full-duplex |
| | D) | half-simplex |
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12 | |
In the original ARPANET, _______ were directly connected together. |
|
| | A) | IMPs |
| | B) | host computers |
| | C) | networks |
| | D) | routers |
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13 | |
This was the first network. |
|
| | A) | CSNET |
| | B) | NSFNET |
| | C) | ANSNET |
| | D) | ARPANET |
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14 | |
Which organization has authority over interstate and international commerce in the communications field? |
|
| | A) | ITU-T |
| | B) | IEEE |
| | C) | FCC |
| | D) | ISOC |
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15 | |
_______ are special-interest groups that quickly test, evaluate, and standardize new technologies. |
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| | A) | Forums |
| | B) | Regulatory agencies |
| | C) | Standards organizations |
| | D) | All of the above |
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16 | |
Which agency developed standards for physical connection interfaces and electronic signaling specifications? |
|
| | A) | EIA |
| | B) | ITU-T |
| | C) | ANSI |
| | D) | ISO |
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17 | |
_______ is the protocol suite for the current Internet. |
|
| | A) | TCP/IP |
| | B) | NCP |
| | C) | UNIX |
| | D) | ACM |
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18 | |
_______ refers to the structure or format of the data, meaning the order in which they are presented. |
|
| | A) | Semantics |
| | B) | Syntax |
| | C) | Timing |
| | D) | All of the above |
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19 | |
________ defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation. |
|
| | A) | Semantics |
| | B) | Syntax |
| | C) | Timing |
| | D) | None of the above |
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20 | |
_______ refers to two characteristics: when data should be sent and how fast it can be sent. |
|
| | A) | Semantics |
| | B) | Syntax |
| | C) | Timing |
| | D) | none of the above |
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21 | |
Data flow between two devices can occur in a _______ way. |
|
| | A) | simplex |
| | B) | half-duplex |
| | C) | full-duplex |
| | D) | all of the above |
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22 | |
In a ______ connection, two and only two devices are connected by a dedicated link. |
|
| | A) | multipoint |
| | B) | point-to-point |
| | C) | (a) and (b) |
| | D) | none of the above |
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23 | |
In a ________ connection, three or more devices share a link. |
|
| | A) | multipoint |
| | B) | point-to-point |
| | C) | (a) and (b) |
| | D) | none of the above |
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24 | |
______ refers to the physical or logical arrangement of a network. |
|
| | A) | Data flow |
| | B) | Mode of operation |
| | C) | Topology |
| | D) | None of the above |
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25 | |
Devices may be arranged in a _____ topology. |
|
| | A) | mesh |
| | B) | ring |
| | C) | bus |
| | D) | all of the above |
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26 | |
A _______ is a data communication system within a building, plant, or campus, or between nearby buildings. |
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| | A) | MAN |
| | B) | LAN |
| | C) | WAN |
| | D) | none of the above |
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27 | |
A ______ is a data communication system spanning states, countries, or the whole world. |
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| | A) | MAN |
| | B) | LAN |
| | C) | WAN |
| | D) | none of the above |
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28 | |
________ is a collection of many separate networks. |
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| | A) | A WAN |
| | B) | An internet |
| | C) | a LAN |
| | D) | None of the above |
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29 | |
There are ______________ Internet service providers. |
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| | A) | local |
| | B) | regional |
| | C) | national and international |
| | D) | all of the above |
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30 | |
A ________ is a set of rules that governs data communication. |
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| | A) | forum |
| | B) | protocol |
| | C) | standard |
| | D) | none of the above |
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31 | |
________ is an idea or concept that is a precursor to an Internet standard. |
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| | A) | RCF |
| | B) | RFC |
| | C) | ID |
| | D) | none of the above |