Chapter Review

1. Coaxial cable consists of a core made of solid or stranded ____________ ___________.
2. If the coaxial conducting core and wire mesh touch, the cable will experience a ___________.
3. The core of coaxial cable is surrounded by an _____________ __________ that separates it from the wire mesh.
4. Thicknet cable is sometimes used as a ______________ to connect thinnet segments.
5. Thinnet cable can carry a signal for a distance of about 185 meters (607 feet) before the signal starts to suffer from _____________________.
6. The electronic signals that make up the data are actually carried by the ________ in a coaxial cable.
7. A flexible coaxial cable that is easily routed but that should not go into crawl spaces is ________.
8. Coaxial cable that contains special materials in its insulation and cable jacket is called ____________ cabling.
9. The most popular type of twisted-pair cable is _______ (10BaseT).
10. UTP cable for data transmissions up to 10 Mbps is category ______.
11. UTP cable for data transmissions up to 100 Mbps is category _____.
12. STP uses a foil wrap for __________________.
13. STP is less susceptible to electrical _______________________ and supports higher transmission rates over longer distances than does UTP.
14. Twisted-pair cabling uses _________ telephone connectors to connect to a computer.
15. The RJ-45 connection houses _____ cable connections, whereas the RJ-11 houses only ____.
16. Optical fibers carry _______________ data signals in the form of light pulses.
17. Fiber-optic cable cannot be ____________________, and the data cannot be stolen.
18. Fiber-optic cable is better for very high-speed, high-capacity data transmission than ____________ cable because of the former's lack of attenuation and the purity of the signal it carries.
19. Fiber-optic cable transmissions are not subject to electrical ____________________.
20. Baseband systems use _______________ signaling over a single frequency.
21. Each device on a _____________________ network can transmit and receive at the same time.
22. Broadband systems use _____________ signaling and a range of frequencies.
23. With _________________ transmission, the signal flow is unidirectional.
24. Wall-mounted _________________ connected to the wired LAN maintain and manage radio contact between portable devices and the cabled LAN.
25. Broadband optical telepoint transmission is a type of _____________ network capable of handling high-quality multimedia requirements.
26. A component called a wireless _______________ offers an easy way to link buildings without using cable.
27. Spread-spectrum radio broadcasts signals over a range of ___________________.
28. Point-to-point transmission involves wireless ___________ data transfer.
29. In LANs, a transceiver—sometimes called an _____________ ______________ broadcasts and receives signals to and from the surrounding ______________ .
30. Wireless ___________ LANs use telephone carriers and public services to transmit and receive signals.
31. CDPD uses the same technology and some of the same systems as ___________ telephones.
32. Currently, the most widely used long-distance transmission method in the United States is _____________________.
33. The network interface card converts serial data from the computer into parallel data for transmission over the network cable. True False
34. The 16-bit and 32-bit widths are currently the two most popular bus widths. True False
35. To help move data onto the network cable, the computer assigns all of its memory to the NIC. True False
36. Data is temporarily held in the NIC's transceiver, which acts as a buffer. True False
37. Both sending and receiving NICs must agree on transmission speeds. True False
38. In an 80386 computer, COM1 typically uses IRQ ____ and LPT1 typically uses IRQ _____.
39. IRQ lines are assigned different levels of _____________ so that the CPU can determine how important the request is.
40. The recommended setting for a NIC is IRQ _____.
41. Every device on the computer must use a __________________ IRQ line.
42. Each hardware device needs a default ________ ___/___ ________ number.
43. Choosing the appropriate transceiver on a NIC that can use either an external or an on-board transceiver is usually done with ______________.
44. ISA was the standard bus until Compaq and other manufacturers developed the ______ bus.
45. The ____________ ____________ bus functions as either a 16-bit or a 32-bit bus and can be driven independently by multiple bus master processors.
46. Telephone wire uses an __________ connector.
47. Plug and Play refers to both a design philosophy and a set of personal-computer _______________________ specifications.

Answers