Deck 2: Wireless Local Area Networks

Question 1

A directed transmission requires a line of sight path from emitter to detector.

Answer 1

True

Question 2

The IEEE 802.11g standard requires the strongest level of wireless security.

Answer 2

False

Question 3

Which of the following statements is true about the 802.11g standard?

A) speeds up to 600 Mbps and same radio frequency as 802.11a
B) speeds up to 54 Mbps and same radio frequency as 802.11b
C) speeds up to 11 Mbps and same radio frequency as 802.11c
D) speeds up to 54 Mbps and same radio frequency as 802.11a

Answer 3

B

Question 4

WLANs are based on de jure standards.

Question 5

De facto standards are official standards.

Question 6

Windows Vista and Windows 7 use which software for configuring wireless NICs?

A) Wireless Zero Configuration
B) WLAN AutoConfig
C) MS WNIC Config
D) AutoNIC Configuration

Question 7

Which of the following is a viable option for a large enterprise or campus wireless network?

A) autonomous access point
B) lightweight access point
C) fat access point
D) Soft access point

Question 8

Which of the following typically resides between the wireless network and the wired network,serving as the entry point to the wired network while providing encryption and authentication services?

A) residential WLAN gateway
B) point-to-multipoint remote wireless bridge
C) enterprise encryption gateway
D) point-to-point authenticating bridge

Question 9

What are the two components that make up the Windows 7 wireless Hosted Network function?

A) Windows Connect Now,SoftAP
B) Virtual Wifi,SoftAP
C) Virtual WiFi,ICS
D) ICS,WCN

Question 10

If a remote wireless bridge is set to ____,it can only transmit to another bridge in root mode.

A) access point mode
B) root mode
C) nonroot mode
D) repeater mode

Question 11

Which IEEE standard added speeds of 5.5 and 11 Mbps to the WLAN standards?

A) 802.11a
B) 802.11b
C) 802.11g
D) 802.11i

Question 12

If you are installing an access point on a ceiling,but find there are no electrical outlets nearby to provide power to the AP,what technology should you deploy?

A) WCN
B) SoftAP
C) POE
D) Virtual Wifi

Question 13

Which of the following is NOT a major part of an autonomous access point?

A) antenna
B) wired network interface
C) bridging software
D) wireless switch

Question 14

Which of the following provides the management and configuration functions for a thin access point?

A) wireless LAN controller
B) fat access point
C) PoE controller
D) mesh access point

Question 15

If a remote wireless bridge is in repeater mode it functions as a standard AP only and does not communicate with other remote wireless bridges.

Question 16

Wireless NICs perform the same function as a wired NIC except for which of the following?

A) no RJ-45 connection
B) no MAC address
C) transmits bits
D) requires a driver

Question 17

Which of the following is true of the CardBus form factor?

A) designed primarily for use in PDA devices
B) was used as a storage medium for digital cameras
C) has a bus mastering feature
D) has a 16-bit bus

Question 18

Which is NOT a limitation of infrared wireless systems?

A) lack of mobility
B) doesn't work well indoors
C) slow transmission speed
D) limited range

Question 19

Which of the following is connected inline to each end device and adds power to the line?

A) midspan device
B) power sourcing equipment
C) SoftAP
D) EEG

Question 20

Which type of remote wireless bridge connection is used to connect multiple LAN segments,or buildings together?

A) segment-to-segment
B) multipoint-to-multipoint
C) point-to-point
D) point-to-multipoint

Question 21

List and describe three advantages of standards for wireless technology.

Question 22

List the four modes in which a wireless bridge can function.

Question 23

What are the two functions of an access point?

Question 24

List and describe the two terms used for measuring wireless network speeds.

Question 25

A(n)________________ is a device that receives a signal from an emitter.

Question 26

Which of the following are modes in which a remote wireless bridge can function? (Choose all that apply.)

A)switching mode
B)nonroot mode
C)routing mode
D)repeater mode

Question 27

Which of the following are differences between a remote wireless bridge and an AP? (Choose all that apply.)

A)remote wireless bridges have increased power
B)remote wireless bridges have a directional antenna
C)remote wireless bridges provides encryption
D)remote wireless bridges only connect devices in close proximity

Question 28

Which of the following is true about infrared transmissions?

A) diffused transmission relies on reflected light
B) directed transmission has a wide-focused beam
C) they are most reliable outdoors
D) mobility is their greatest strength

Question 29

____________________ ensure that devices from one vendor will function with those from other vendors.

Question 30

Describe the Microsoft Windows 7 feature referred to as the wireless Hosted Network.

Question 31

Remote wireless ____________________ can connect 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.

Question 32

A ____________________ access point does not have to be individually connected by a cable to the wired network but can communicate with other access points of the same type to reach the wired connection.

Question 33

What is a gateway and what types of gateways do you find in wireless networks?

Question 34

A remote wireless bridges support two types of connections.Describe them.

Question 35

Which of the following are improvements of the 802.11n standard over previous 802.11 standards? (Choose all that apply.)

A)data rates up to 1.2 Gbps
B)coverage area
C)security
D)different frequencies reduce interference

Question 36

The IEEE ____________________ standard specified that wireless transmissions could occur via infrared light or radio waves.

Question 37

List the three sources of standards.

Question 38

Describe the difference between directed transmission and diffused transmission with respect to infrared transmissions.

Question 39

Which of the following are advantages of having standards govern how a technology works? (Choose all that apply.)

A)interoperability
B)high profits from lower competition
C)proprietary equipment
D)lower costs

Question 40

Describe a PoE injector.