Chapter 1: Forouzan Data Communications and Networks
Chapter 1: Forouzan Data Communications and Networks
TRUE/FALSE
1. Protocols are rules that govern a communication exchange.
ANS: T
2. The performance of a data communications network depends exclusively on the skills of the users.
ANS: F
3. Viruses are a network timing issue.
ANS: F
4. Protection of data from a natural disaster such as a tornado is a network management issue.
ANS: F
5. Data communication is the transfer of data from one device to another via some form of transmission medium.
ANS: T
6. A data communication system must transmit data to the correct destination in an accurate and timely manner.
ANS: T
7. Networks allow shared access to information devices. This is an example of Centralized Processing.
ANS: F
8. Networks use distributed processing in which a task is divided among multiple computers.
ANS: T
9. Collaborative processing provides for many computers and users to interact on a task either synchronously or asynchronously.
ANS: T
10. Standards are basic, insignificant rules that standards bodies create for strictly intellectual and not practical reasons.
ANS: F
MULTIPLE CHOICE
1. The ______________________ is the physical path over which a message travels.
a. protocol c. signal
b. medium d. path
ANS: B
2. A ________________ connection provides a dedicated link between two devices.
a. tertiary c. primary
b. multipoint d. point-to-point
ANS: D
3. One of the primary disadvantages in a ___________________ topology is that one break in the cable media can stop all data transmissions on the network segment.
a. Mesh c. Bus
b. Star d. Dual-ring (FDDI)
ANS: C
4. In ______________ transmission, the channel capacity is equally shared by both sending and receiving devices at all times on a circuit.
a. Simplex c. Full-duplex
b. Half-duplex d. Half-simplex
ANS: C
5. Which topology always requires a multi-point connection?
TRUE/FALSE
1. Protocols are rules that govern a communication exchange.
ANS: T
2. The performance of a data communications network depends exclusively on the skills of the users.
ANS: F
3. Viruses are a network timing issue.
ANS: F
4. Protection of data from a natural disaster such as a tornado is a network management issue.
ANS: F
5. Data communication is the transfer of data from one device to another via some form of transmission medium.
ANS: T
6. A data communication system must transmit data to the correct destination in an accurate and timely manner.
ANS: T
7. Networks allow shared access to information devices. This is an example of Centralized Processing.
ANS: F
8. Networks use distributed processing in which a task is divided among multiple computers.
ANS: T
9. Collaborative processing provides for many computers and users to interact on a task either synchronously or asynchronously.
ANS: T
10. Standards are basic, insignificant rules that standards bodies create for strictly intellectual and not practical reasons.
ANS: F
MULTIPLE CHOICE
1. The ______________________ is the physical path over which a message travels.
a. protocol c. signal
b. medium d. path
ANS: B
2. A ________________ connection provides a dedicated link between two devices.
a. tertiary c. primary
b. multipoint d. point-to-point
ANS: D
3. One of the primary disadvantages in a ___________________ topology is that one break in the cable media can stop all data transmissions on the network segment.
a. Mesh c. Bus
b. Star d. Dual-ring (FDDI)
ANS: C
4. In ______________ transmission, the channel capacity is equally shared by both sending and receiving devices at all times on a circuit.
a. Simplex c. Full-duplex
b. Half-duplex d. Half-simplex
ANS: C
5. Which topology always requires a multi-point connection?