Module 4.2

Question 1

_______________ or degradation of a signal as it travels over media, determines the maximum distance for a particular media type at a given bit rate.

Answer 1

Attenuation,

Question 2

_________ is anything that gets transmitted within or close to the channel that isn’t the intended signal.

Answer 2

Noise

Question 3

Used to verify the integrity of a network interface port by checking that it can receive a signal generated by itself.

Answer 3

loopback adapter

Question 4

Visual indicator of the status of various devices, including PC power supplies, batteries, drive activity, and network activity. Network equipment LEDs usually show connection speed and activity.

Answer 4

LED status indicators

Question 5

The link is connected but there is no traffic. the light is _________

Answer 5

solid green

Question 6

The link is operating normally (with traffic). The blink rate indicates the link speed. The light is _______________

Answer 6

Flickering green-

Question 7

The link is not working or the port is shut down. The light is ____________

Answer 7

No light

Question 8

A fault has been detected (duplex mismatch, excessive collisions, or redundancy check errors, for instance). The light is __________________

Answer 8

Blinking Amber

Question 9

The port is blocked by the spanning tree algorithm, which works to prevent loops within a switched network. The light is

Answer 9

Solid Amber

Question 10

Tool that reports physical characteristics of a network link such as signal strength, noise, and crosstalk.

Answer 10

Cable tester

Question 11

Used to measure the length of a cable run and are able to locate open and short circuits, kinks/sharp bends, and other imperfections in cables that could affect performance.

Answer 11

Time Domain Reflectometer

Question 12

Electrical meter capable of measuring voltage, resistance, and current. Voltage readings can be used to determine whether, for example, a power supply unit is functioning correctly. Resistance readings can be used to determine whether a fuse or network cable is functioning correctly.

Answer 12

multimeter

Question 13

Tool to verify termination/pinouts of cable.

Answer 13

wire map tester

Question 14

A conductor does not form a circuit because of cable damage or because the connector is not properly wired.

Answer 14

Continuity (open)

Question 15

Two conductors are joined at some point, usually because the insulating wire is damaged, or a connector is poorly wired.

Answer 15

Short