ETEK1500-MOD-02

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.

____ 1. What is another name for a NIC? a. client network adapter c. access point b. mini PCI d. bridge

____ 2. A(n) ____ card improves input/output speed over a PC Card by increasing the bus width to 32 bits yet still supports lower-voltage PC Cards. a. mini PCI c. built-in b. CardBus d. access point

____ 3. A device called a ____ must sometimes be attached to a PDA in order to establish a wireless connection. The device contains a slot for a wireless NIC or similar device. a. shoe c. sled b. slot d. bridge

____ 4. Which of the following statements describes the difference between a CF wireless NIC and a PC card? a. PC card is smaller than CF b. PC card consumes less power than CF c. PC card is larger than CF d. CF requires separate antenna to be built into monitor

____ 5. Beginning with Windows ____, all Microsoft desktop operating systems recognize a wireless NIC without the need for any external software drivers. a. NT c. 2000 b. ME d. XP

____ 6. An access point has a(n) ____ wired network interface that allows it to connect by cable to a standard wired network. a. IEEE 802 c. compact flash b. RJ-45 d. PCI

____ 7. Most industry experts recommend one access point for no more than ____ users if they are performing basic e-mail, light Web surfing, and occasionally transferring medium-sized files. a. 10 c. 50 b. 30 d. 100

____ 8. How does an access point receive electrical power if it is mounted in a location that is not close to an electrical outlet? a. through radio waves b. through the unused wires in a standard unshielded twisted pair (UTP) Ethernet cable c. through a USB cable d. it must be mounted near an outlet

____ 9. Most bridges have what is known as ____ that minimizes the spread of the signal so that it can reach farther distances. a. delay spread c. scheduled delays b. interspersed communications d. multipoint scheduling

____ 10. Which type of remote wireless bridge connection is used to connect multiple LAN segments together? a. segment-to-segment c. point-to-point b. multipoint-to-multipoint d. point-to-multipoint

____ 11. If a remote wireless bridge is set to ____, it can only transmit to another bridge in root mode. a. access point mode c. non-root mode b. root mode d. repeater mode

____ 12. What function is performed by a wireless gateway? a. authentication c. bandwidth management b. encryption d. All of the above

____ 13. What is a disadvantage of standards? a. reduced competition b. devices produced by different vendors may not interoperate c. higher prices d. they can open domestic markets in larger countries to overseas competition

____ 14. Microsoft Windows has become the ____ standard operating system today for personal desktop computers and network servers. a. de facto c. consortia b. de jure d. All of the above

____ 15. Ultimately, who regulates standards that are developed by consortia? a. a regulatory body c. the government b. the marketplace d. the manufacturers

____ 16. What is the name for the computer network architecture standards developed by the IEEE? a. Project Athena c. Project 802 b. Project Network d. Project 1000

____ 17. Which IEEE committee establishes standards for wireless wide area networks? a. 802.3 c. 802.13 b. 802.11 d. 802.16

____ 18. When a business is registered as a ____ they are qualified be placed in an online database of wireless hotspot locations. a. Wi-Fi Alliance member c. SOHO b. Wi-Fi Zone d. WECA

____ 19. The radio frequency spectrum is divided into ____ different sections or bands. a. 300 c. 900 b. 450 d. 1200

____ 20. The IEEE 802.11 standard outlines the use of ____ transmissions for WLANs. a. diffused infrared c. radio wave b. directed infrared d. gallium arsenide

____ 21. The 802.11b standard can support wireless devices that are up to ____ meters apart. a. 30 c. 115 b. 90 d. 130

Completion Complete each sentence or statement.

22. A(n) ____________________ is a small card that is functionally equivalent to a standard PCI expansion card.

23. Access points are typically mounted on a(n) ____________________ to reduce interference from surrounding objects.

24. Remote wireless ____________________ are ideal solutions for connecting sites such as satellite offices, remote campus settings, or temporary office locations when the sites are separated by obstacles such as bodies of water, freeways, or railroads that make using a wired connection impractical or very expensive.

25. The goal of a(n) ____________________ is to develop standard that promote their specific technology in a short period of time.

26. ____________________ bands are in effect bands of the radio spectrum that are available nationwide to all users, without requiring a license.

Matching

Match each term with the correct statement below. a. wireless gateway f. flash memory b. IEEE g. NIC c. bridge h. de jure standards d. mini PCI i. FCC e. de facto standard

____ 27. serves as the primary regulatory agency for wireless communications in the United States and its territorial possessions

____ 28. device that connects the computer to the network so that it can send and receive data

____ 29. device that combines wireless management and security in a single appliance

____ 30. type of solid-state (microchip) storage technology in which there are no moving parts

____ 31. common practices that the industry follows for various reasons, ranging from ease of use to tradition to what the majority of the users do

____ 32. small card that is functionally equivalent to a standard PCI expansion card

____ 33. standards that are controlled by an organization or body that has been entrusted with that task

____ 34. device that is used to connect two network segments together

____ 35. world’s largest technical professional society with members around the globe

Short Answer

36. What are the steps involved in a wireless NIC transmission?

37. What are the two functions of an access point?

38. A remote wireless bridge can function in one of four different modes. Describe each mode.

39. List at least three advantages of standards for wireless technology.

40. What are de jure standards?

41. What are the current IEEE committees for wireless standards?

42. What are the responsibilities of the FCC?

43. Describe infrared transmissions as they are used for wireless networks.

44. Describe the IEEE 802.11b standard.

45. What is IEEE 802.11n?