True/False (4 points each question)

Indicate whether the statement is true or false.

____ 1. The strength of an electrical signal is directly proportional to its frequency.

____ 2. Modulation can be used to make a signal conform to a specific pathway.

____ 3. Ethernet is an example of a baseband system found on many LANs.

____ 4. Latency occurs when a signal traveling on one wire or cable infringes on the signal traveling over an adjacent wire or cable.

____ 5. The maximum distance a signal can travel and still be interpreted accurately is equal to a segments maximum length.

____ 6. The distance between corresponding points on a waves cycle is called its wavelength.

Completion (4 points each question)

Complete each statement.

1. The use of 1s and 0s to represent information is characteristic of a(n) ____________________ system.

2. ____________________ is a term used by networking professionals to describe the nondata information that must accompany data for a signal to be properly routed and interpreted by the network.

3. ____________________ transmission involves one transmitter and multiple receivers.

4. ____________________ are the pieces of hardware that connect the wire to the network device.

5. ____________________ cabling consists of one or more insulated wire pairs encased in a plastic sheath.

Matching (4 points each question)

Match each item with a statement below:

a.

bit

f.

populated segment

b.

data modulation

g.

unpopulated segment

c.

baseband

h.

broadband

d.

EMI (electromagnetic interference)

i.

nonbroadcast

e.

broadcast

____ 1. Transmission that involves one transmitter and multiple, undefined receivers.

____ 2. Transmission that issues signals to multiple, defined recipients.

____ 3. Transmission form in which (typically) digital signals are sent through direct current (DC) pulses applied to the wire.

____ 4. Part of a network that contains end nodes.

____ 5. A common source of noise.

____ 6. Every pulse in a digital signal.

____ 7. Part of the network that does not contain end nodes.

____ 8. A form of transmission in which signals are modulated as radio frequency (RF) analog waves that use different frequency ranges.

____ 9. Technology used to modify analog signals to make them suitable for carrying data over a communication path.

Short Answer (4 points each question)

1. Describe a drawback of analog signals.

2. Describe variables that may influence the final cost of implementing a certain type of media.

3. Explain the makeup of twisted pair wire.

4. Describe the advantages of twisted pair wiring.

5. Describe the benefits of fiber-optic cabling over copper cabling.

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