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Ch 15 RQ
Question | Answer |
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Place the following networking technologies in the order of their highest speed, from slowest to fastest: WiMAX, dial-up networking, cable Internet, Fast Ethernet, 3G | Dial up, 3g, cable, wimax, fast ehernet |
What is the difference between ADSL and SDSL? | ADSL(Asymmetric Digital Subscriber Line) uses one upload speed from the consumer to an ISP and a faster downloads Speed. SDSL (Symmetric Digital Subscriber Line) Uses equal bandwiths in both directions. |
Among satellite, cable Internet, and DSL, which technology experiences more latency? | Satellite |
When using DSL to connect to the Internet, the data transmission shares the cabling with what other technology? | Regular Telephone |
When using cable Internet, the data transmission shares the cabling with what other technology? | Television |
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? | Ethernet cable is RJ 45. Dial-up modem is RJ 11 |
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? | Gigabit Ethernet is currently replacing 100BaseT Ethernet as the choice for LAN technology |
What is the maximum length of a cable on a 100BaseT network? | 100 meters |
What does the 100 in the name 100BaseT indicate? | Transmission Speed 100mb/s |
Which type of networking cable is more reliable, STP or UTP? Which is used on LANs? | STP |
Which is more expensive, UTP CAT6 cabling or STP CAT6 cabling? | STP CAT6 |
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 | straight through is same pin out both ends. crossover has transmit and receive lines reversed |
What technology is used when power is transmitted on a network cable? | Power over ethernet (PoE) |
Describe the difference between a hub and a switch. | A hub is a multiport repeater of broadcast information (it receives on any port) to all ports |
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? | A Bridge assist in handing network traffic and can direct known traffic to its destination. |
What type of cable uses an F connector? | Coaxial Cable |
Why does a CAT6 cable have a plastic core? Which two types of cabling is recommended for Gigabit Ethernet? | To keep the pairs of twisted wires separated which reduces crosstalk. CAT-5e and CAT6 |
How many wires does a CAT6 cable have? A CAT6e cable? A coaxial cable? | Coaxial has 1 |
Which tool can you use to verify that a network port on a computer is good? | loopback plug |
After making a straight-through cable, which tool can you use to certify the cable? | cable tester |
Which tool can help you find a network cable in the walls of a building? | toner probe |
Which tool is used to firmly attach a RJ45 connector to a network cable? | Crimper |
Which tool can help you find out which wall jack connects to which port on a switch in an electrical closet? | Loopback plug |
Name two places where you might find a keystone RJ45 jack in a building. | In a patch panel in the network closet and in a RJ45 wall jack |
List the number assigned each pair and the color of each pair used in twisted-pair networking cables. | Pair 1 is blue; pair 2 is orange; pair 3 is green, and pair 4 is brown. |
What two standards are used to wire networking cables? | T568A and T568B |
Of the two standards in Question 26, which standard is the most common? Which is required for all U.S. government installations? | T568B, T568A |
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? | Green and Orange |
How many pairs of wires are crossed in a crossover cable that will work on a 100BaseT network? | 2 pair or 4 wires for 100BaseT. 4 pair or 8 wires for 1000BaseT gigabit ethernet, although not usually used. |
To prevent crosstalk in a keystone Rj-45 jack, what's the maximum length of wire that should be untwisted? | untwisted no longer than half inch |