Troubleshooting Tools

What is the purpose of a loopback plug?

• To reflect a signal from the transmit port to the receive port on the same device

• To extend the length of a cable

• To connect multiple devices together

• To test the speed of a network connection

What does a successful loopback test indicate?

• The problem is in the network cabling or another connectivity device

• The network card is faulty

• The loopback plug is not functioning

• The device cannot send or receive signals

What is a smartjack?

• A type of network switch

• An intelligent loopback device installed at the demarcation point for a WAN service

• A device that extends Wi-Fi signals

• A tool for managing network cables

What does a cable tester do?

• Measures the electrical current in cables

• Verifies that the cable can carry a signal from one end to the other

• Increases the signal strength in cables

• Connects multiple cables together

What can a time-domain reflectometer (TDR) identify?

• The speed of the network

• The location of splices and connectors on the wire

• The color of the cable sheath

• The type of cable (copper or fiber)

What is the main function of an optical time-domain reflectometer (OTDR)?

• To splice fiber optic cables

• To identify specifics about the cable, such as the location of a break

• To clean fiber optic cables

• To measure the length of optical fibers

Why is a cable certifier important for Cat 6 cables?

• It reduces the weight of the cable

• It makes the cable waterproof

• It verifies that the cable meets the specifications for 1000BaseT networking

• It can change the color of the cable

How is a toner probe used?

• To measure the voltage in cables

• To clean the cables

• To increase the signal strength

• To trace the end of a wire from a known endpoint to the termination point

What can a multimeter measure?

• The length of cables

• AC and DC voltage, Current, Resistance, Capacitance, Frequency

• The temperature of the device

• The color of wires

What does an environmental monitor track?

• The speed of the network

• The number of devices connected to the network

• The environmental conditions of a specific area or device

• The amount of data transmitted over the network