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