Deck 11: Wireless Lans

Question 1

When using wireless network,roaming occurs when a mobile stations moves from one access point (or cell)to another.

Answer 1

True

Question 2

A wireless LAN is easier than wired LANs because there are fewer requirements for capacity and connectivity.

Answer 2

False

Question 3

The two frequency bands typically used by IEEE 802.11 wireless networks are located approximately at 900 MHz and 2.4 GHz.

Answer 3

False

Question 4

Wireless LAN applications typically employ control modules that link wireless LANs to wired LANs.

Question 5

One advantage of wireless LAN use is that any transmission frequency can be used as long as it does not interfere with other nearby applications.

Question 6

The typical coverage area for a wireless LAN is 300 to 500 meters.

Question 7

IEEE 802.11 defines a number of services that need to be provided by wireless LAN to provide functionality.Which of the following is not one of these services?

A)Association
B)Reassociation
C)Authentication
D)Coordination
E)Disassociation

Question 8

Bluetooth is an alternative name for WIFI.

Question 9

A basic service set (BSS)is

A)the smallest building block of a wireless LAN
B)the same as an access point
C)the same as a control module
D)always connected to a backbone distribution system.
E)an isolated set of devices using wireless

Question 10

Infrared LANs are an economic alternative to spread spectrum LANs.

Question 11

Typical ranges (distance between sender and receiver)for a wireless LAN are of the order 100 to 1000 meters.

Question 12

What types of applications are using Bluetooth?

Question 13

When using a wireless LAN with a notebook computer,it is necessary for the computer not to move while the connection is active.

Question 14

LAN Extension is an application of wireless technology in situations where it may be used as an alternative to installing additional wired LAN.

Question 15

A significant problem when using wireless LANs or Bluetooth arises because other applications use the same frequency bands,which causes interference problems.