1: The _______ is the physical path over which a message travels.
a. Protocol
b. Medium
c. Signal
d. All the above
Click here for answer
b. Medium
2: The information to be communicated in a data communications system is the _______.
a. Medium
b. Protocol
c. Message
d. Transmission
Click here for answer
c. Message
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
Click here for answer
b. Reliability
4: An unauthorized user is a network _______ issue.
a. Performance
b. Reliability
c. Security
d. All the above
Click here for answer
c. Security
5: Which topology requires a central controller or hub?
a. Mesh
b. Star
c. Bus
d. Ring
Click here for answer
b. Star
6: Which topology requires a multipoint connection?
a. Mesh
b. Star
c. Bus
d. Ring
Click here for answer
c. Bus
7: Communication between a computer and a keyboard involves ______________ transmission.
a. simplex
b. half-duplex
c. full-duplex
d. automatic
Click here for answer
a. simplex
8: A television broadcast is an example of _______ transmission.
a. simplex
b. half-duplex
c. full-duplex
d. automati
Click here for answer
a. simplex
9: A _______ connection provides a dedicated link between two devices.
a. point-to-point
b. multipoint
c. primary
d. secondary
Click here for answer
a. point-to-point
10: In a _______ connection, more than two devices can share a single link.
a. point-to-point
b. multipoint
c. primary
d. secondary
Click here for answer
b. multipoint
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
Click here for answer
c. full-duplex
12: In the original ARPANET, _______ were directly connected together.
a. IMPs
b. host computers
c. networks
d. routers
Click here for answer
a. IMPs
13: This was the first network.
a. CSNET
b. NSFNET
c. ANSNET
d. ARPANET
Click here for answer
d. ARPANET
14: Which organization has authority over interstate and international commerce in the communications field?
a. ITU-T
b. IEEE
c. FCC
d. ISOC
Click here for answer
c. FCC
15: _______ are special-interest groups that quickly test, evaluate, and standardize new technologies.
a. Forums
b. Regulatory agencies
c. Standards organizations
d. All of the above
Click here for answer
a. Forums
16: Which agency developed standards for physical connection interfaces and electronic signaling specifications?
a. EIA
b. ITU-T
c. ANSI
d. ISO
Click here for answer
a. EIA
17: _______ is the protocol suite for the current Internet.
a. TCP/IP
b. NCP
c. UNIX
d. ACM
Click here for answer
a. TCP/IP
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
Click here for answer
b. Syntax
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
Click here for answer
a. Semantics
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
Click here for answer
c. Timing
21: Data flow between two devices can occur in a _______ way.
a. simplex
b. half-duplex
c. full-duplex
d. all of the above
Click here for answer
d. all of the above
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 abov
Click here for answer
b. point-to-point
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
Click here for answer
a. multipoint
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
Click here for answer
c. Topology
25: Devices may be arranged in a _____ topology.
a. mesh
b. ring
c. bus
d. all of the above
Click here for answer
d. all of the above
26: A _______ is a data communication system within a building, plant, or campus, or between nearby buildings.
a. MAN
b. LAN
c. WAN
d. none of the above
Click here for answer
b. LAN
27: A ______ is a data communication system spanning states, countries, or the whole world.
a. MAN
b. LAN
c. WAN
d. none of the above
Click here for answer
c. WAN
28: ________ is a collection of many separate networks.
a. A WAN
b. An internet
c. a LAN
d. None of the above
Click here for answer
b. An internet
29: There are ______________ Internet service providers.
a. local
b. regional
c. national and international
d. all of the above
Click here for answer
d. all of the above
30: A ________ is a set of rules that governs data communication.
a. forum
b. protocol
c. standard
d. none of the above
Click here for answer
b. protocol
Comments
Post a Comment