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1. Communication between a computer and a keyboard involves ____ transmission.
A. Half duplex
B. Simplex
C. Full duplex
D. All of these
ANSWER:B
SOLUTION:Communication between a computer and a keyboard involves simplex transmission.
2. The first network________.
A. NSFNET
B. ARPANET
C. ASPNET
D. None of these
ANSWER:B
SOLUTION: The Advanced Research Projects Agency Network (ARPANET) was the first operational computer network, and the foundation of the modern internet. ARPANET was in existence from 1969 to 1990.
3. Data communication system within a building ___
A. LAN
B. MAN
C. WAN
D. None of these
ANSWER:A
SOLUTION: The data communication system within a building is called a Local Area Network (LAN).
4. The ___ is the physical path over which a message travels.
A. Path
B. Medium
C. Protocol
D. Route
ANSWER:B
SOLUTION: The physical path over which a message travels is called the medium.
5. ___ is a network that this technology connects sites that are in diverse locations.
A. LAN
B. MAN
C. WAN
D. None of thee
ANSWER:C
SOLUTION: “A wide area network (WAN) is a network that connects computers across long distances, such as across a city, country, or globally. WANs are more complex than local area networks (LANs) and allow devices to communicate securely over large distances.
6. Computer network is ________.
A. Collections of hardware component and computers
B. Interconnected by communication channels
C. Sharing of resources and information
D. All of these
ANSWER: D
SOLUTION: A computer network is a collection of devices that are connected to exchange data and resources, such as mobile phones, servers, and other devices. These devices can be connected using physical wires, such as fiber optics, or wirelessly.
7. Which transmission media has the highest transmission speed in a network?
A. Coaxial cable
B. Twisted pair cable
C. Optical fiber
D. None of these
ANSWER: C
SOLUTION: Fiber optic cables have the highest transmission speed in a network. Fiber optic cables transmit data as light across thin glass strands, which allows for speeds near the speed of light.
8. Which of these is not guided media?
A. Fiber optic cable
B. Coaxial cable
C. Wireless LAN
D. Twisted cable
ANSWER:C
SOLUTION: Wireless LAN is not guided media. Guided media, also known as wired media, is the physical medium that transmits signals.
9. The Communication channel is shared by all the machines on the network in ________.
A. Broadcast network
B. Unicast network
C. Multicast network
D. None of these
ANSWER: A
SOLUTION: A broadcast network is a type of computer network where all devices share a communication channel and send messages to all other devices.