CH 2 Connecting Computers

A network interface card (NIC) provides which of the following?
1.The link between the house and the phone company.
2.The link between two servers.
3.The interface between a computer and a peripheral device.
4.The link between the physical hardware of a network and a computer. 
5.The interface between a server and a client.

Which of the following are advantages of using PCI NICs?
1.Low cost, high performance, and ease of use.
2.Enhanced reliability, high performance, and ease of use.
3.Multiple channels, high performance, enhanced reliability.
4.Increased flexibility, ease of use, increased adaptability.
5.Superior reliability, low cost, and ease of use.

Twisted-pair installations are frequently limited to what length-per-segment without repeaters?
1.90 m
2.50 m
3.100 m
4.120 m 
5.110 m

Which of the following mediums is nearly
immune to noise?

1.Unshielded twisted pair.
2.Shielded twisted pair.
3.Coaxial cable.
4.Optical fiber.
5.CAT-6 cable.

Why do MAC address filters
alone provide inadequate security on a wireless network?
1.MAC addresses transmitted within wireless frames are easy to intercept. 
2.All clients on the wireless network share the same MAC address.
3.MAC address filters use a weak implementation of the RC4 encryption
algorithm.
4.Implementing additional encryption to wireless signals is extremely
difficult.

Incompatibility between
802.11a and 802.11b is due to which of the following reasons?
1. They operate at different layers of the OSI model.
2. 802.11a is immune from the "near/far" problem.
3. They each use a different method of spread spectrum transmission. 
4. Frequency response characteristics are not the same.

Which of the following is
the first action you should take when planning cable installations?
1. Decide on the cable type to be used.
2. Determine the money available for the installation.
3. Identify the type of equipment to be used.
4. Evaluate any expansion plans.
5. Perform a site survey.

Which of the following
media has the lowest installation costs?
1.Twisted pair.
2,Fiber optic.
3.10Base2 thinnet.
4.10Base5 thicknet.
5.Wireless.

Which of the following
accurately describes the difference between a patch cable and a crossover
cable?
1. Patch cables connect computers directly and crossover cables connect
computers to hubs or switches.
2. Crossover cables connect computers directly and patch cables connect
computers to hubs or switches. 
3. Patch cables connect directly to the Internet and crossover cables must be
used to interconnect equipment.

Which of the following is
the correct color of the 3rd pair in a UTP cable?
1.Blue and white-blue.
2.Red and white-red.
3.Brown and white-brown.
4.Green and white-green. 
5.Orange and white-orange.