Chapter 15 Unit Test

Place the following networking technologies in the order of their highest speed, from slowest to fastest: dial-up networking, cable Internet, Fast Ethernet, and 3G.

What is the difference between ADSL and SDSL?

Among satellite, cable Internet, and DSL, which technology experiences more latency?

When using DSL to connect to the Internet, the data transmission shares the cabling with what other technology?

When using cable Internet, the data transmission shares the cabling with what other technology?

What is the name of the port used by an Ethernet cable? What is the name of the port used by a dial-up modem?

If you want to upgrade your 100BaseT Ethernet network so that it will run about 10 times the current speed, what technology would you use?

What is the maximum length of a cable on a 100BaseT network?

What does the 100 in the name 100BaseT indicate?

Which type of networking cable is more reliable, STP or UTP? Which is normally used on LANs?

Which is more expensive, UTP CAT-6 cabling or STP CAT-6 cabling?

When looking at a network cable that is not labeled, describe how you can tell if the cable is a straight-through cable or a crossover cable.

What technology is used when power is transmitted on a network cable?

Describe the difference between a hub and a switch.

How is a wireless access point that is also a bridge more efficient in handling network traffic than a wireless access point that is not a bridge?

What type of cable uses an F connector?

Why does a CAT-6 cable have a plastic core? Which types of cabling are recommended for Gigabit Ethernet?

How many wires does a CAT-6 cable have? A CAT-6e cable? A coaxial cable?

Which tool can you use to verify that a network port on a computer is good?

After making a straight-through cable, which tool can you use to certify the cable?

Which tool can help you find a network cable in the walls of a building?

Which tool is used to firmly attach an RJ-45 connector to a network cable?

Which tool can help you find out which wall jack connects to which port on a switch in an electrical closet?

Name two places where you might find a keystone RJ-45 jack in a building.

List the number assigned to each pair and the color of each pair used in twisted-pair networking cables.

What two standards are used to wire networking cables?

Of the two standards in the previous question, which standard is the most common? Which is required for all U.S. government installations?

Using either of the two wiring standards, what are the colors of the two pairs used to send and/or receive data on a 100BaseT network?

How many pairs of wires are crossed in a crossover cable that will work on a 100BaseT network? On a 1000BaseT network?

To prevent crosstalk in a keystone RJ-45 jack, what is the maximum length of wire that should be untwisted?

Linda has been assigned the job of connecting five computers to a network. The room holding the five computers has three network jacks that connect to a switch in an electrical closet down the hallway. Linda decides to install a second switch in the room. The new switch has four network ports. She uses one port to connect the switch to a wall jack. Now she has five ports available (two wall jacks and three switch ports). While installing and configuring the NICs in the five computers, she discovers that the PCs connected to the two wall jacks work fine, but the three connected to the switch refuse to communicate with the network. What could be wrong and what should she try next?

If a Gigabit Ethernet NIC is having a problem communicating with a 100BaseT switch that only supports half duplex, what steps can you take to manually set the NIC to the speed and duplex used by the switch? Which speed and duplex should you choose?

You connect a computer to an RJ-45 wall jack using a straight-through cable. When you first open the browser on the computer, you discover it does not have Internet access. Put the following steps in the correct order to troubleshoot the problem. a. Use a loopback plug to verify the network port on the computer. b. Rewire the keystone RJ-45 wall jack. c. Use a loopback plug to verify the network port in the wall jack. d. Exchange the straight-through cable for a known good one. e. Verify the status indicator lights on the NIC. f. Use a cable tester to test the network cable and termination from the switch in the electrical closet to the wall jack.