Multiple Choices:
1- Communication between a computer and a keyboard involves ______transmission.
A) simplex.
B) half-duplex.
C) full-duplex.
D) automatic.
2- A television broadcast is an example of ______transmission.
A) simplex.
B) half-duplex.
C) full-duplex.
D) Automatic.
3- A ______connection provides a dedicated link between two devices.
A) point-to-point.
B) multipoint.
C) primary.
D) secondary.
4- In a ______connection, more than two devices can share a single link
A) point-to-point.
B) multipoint.
C) primary.
D) secondary.
5- 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.
6- Devices may be arranged in a _____ topology.
A) Mesh.
B) Ring.
C) Bus.
D) All of the above.
7- A ______is a set of rules that governs data communication.
A) Forum.
B) Protocol.
C) Standard.
D) None of the above.
Review Questions (From the text book -Data communication and networking- Page.24)
1- For n devices in a network, what is the number of cable links required for mesh, ring, bus, star topology?
2- What is the difference between half-duplex and full-duplex transmission modes?
5- What are the advantages of a multipoint connection over a point-to-point connection?
6- Why are standards needed?
7- What are the advantages of distributed processing?
8- Name the four basic network topologies, and cite an advantage for each type.
Exercises (From the text book -Data communication and networking- Page.24-25)
15- In the ring topology in Figure 1.8, what happens if one of the stations is unplugged?
17- In the bus topology in Figure 1.7, what happens if one of the stations is unplugged?
19- Assume five devices are arranged in a mesh topology. How many cables are needed? How many ports are needed for each device?
22- For each of the following four networks, discuss the consequences if a connection fails.
a. Six devices arranged in a bus topology
b. Four devices arranged in a ring topology
c. Five devices arranged in a mesh topology
d. Seven devices arranged in a star topology (not counting the hub)
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