Question 1

How does open system authentication work?

Accepted Answer

Open system authentication is the most b

Question 2

Wireless authentication involves a user logging on to the access point.

Accepted Answer

A) True 
 B)False

Question 3

A wireless device sends an authentication frame to the AP. The AP sends back an authentication frame that contains a block of text known as the ____________________.

Accepted Answer

The answer of A wireless device sends an authentication frame...

Question 4

____ effectively prevents collisions because every device must wait until it receives permission before it can transmit.

Accepted Answer

A)  CSMA/CD 
B)  CSMA/CA 
C)  Polling 
D)  Fragmentation 
A)  CSMA/CD 
B)  CSMA/CA 
C)  Polling 
D)  Fragmentation

Question 5

An access point sends out a beacon frame containing a ____ identifying the stations that have buffered frames waiting at the access point.

Accepted Answer

A)  buffer list 
B)  traffic indication map 
C)  waiting map 
D)  buffered cache 
A)  buffer list 
B)  traffic indication map 
C)  waiting map 
D)  buffered cache

Question 6

____________________ IP provides a mechanism within the TCP/IP protocol to support mobile computing by using a home agent as a forwarding mechanism to keep track of where the mobile computer is located.

Accepted Answer

The answer of ____________________ IP provides a mechanism within the...

Question 7

All frames contain the MAC address of the source and destination device, a frame sequence number, and a frame ____ used for error detection.

Accepted Answer

A)  unit 
B)  flag 
C)  sum 
D)  check sequence 
A)  unit 
B)  flag 
C)  sum 
D)  check sequence

Question 8

CSMA/CA reduces collisions is by using explicit frame acknowledgment. Describe how frame acknowledgment works.

Accepted Answer

An acknowledgment frame (abbreviated ACK

Question 9

A BSS is ____.

Accepted Answer

A)  a group of wireless devices that is served by a single access point 
B)  a unique identifier 
C)  a geographical area where wireless devices reside 
D)  two or more networks that are connected through a common distribution system 
A)  a group of wireless devices that is served by a single access point 
B)  a unique identifier 
C)  a geographical area where wireless devices reside 
D)  two or more networks that are connected through a common distribution system

Question 10

Describe IP addresses and explain how they are allocated and used.

Accepted Answer

TCP/IP works on the principle that each

Question 11

The 802.11 standard provides an option that can be used when collisions occur due to a hidden node. That option is known as ____.

Accepted Answer

A)  virtual node detection 
B)  node collision protocol 
C)  virtual carrier sensing 
D)  hidden node detection 
A)  virtual node detection 
B)  node collision protocol 
C)  virtual carrier sensing 
D)  hidden node detection

Question 12

A home agent is a forwarding mechanism that keeps track of where the mobile computer is located.

Accepted Answer

A) True 
 B)False

Question 13

With MobileIP, the ____ assigns the mobile computer a new (but temporary) IP number.

Accepted Answer

A)  local AP 
B)  foreign AP 
C)  foreign agent 
D)  roamed network 
A)  local AP 
B)  foreign AP 
C)  foreign agent 
D)  roamed network

Question 14

Describe power management for an ad hoc configuration.

Accepted Answer

Every device must buffer the frames that

Question 15

What is a management frame? What are the fields in this type of frame?

Accepted Answer

Management frames are used to set up the

Question 16

In an infrastructure network the beacon interval is normally set to ____ ms, although it can be modified.

Accepted Answer

A)  1 
B)  10 
C)  100 
D)  1000 
A)  1 
B)  10 
C)  100 
D)  1000

Question 17

On ESS networks that have multiple access points, the wireless device might actually receive beacon frames from several APs. Which AP would a wireless device generally choose in this case?

Accepted Answer

A)  the closest 
B)  the one with the fewest wireless devices attached to the AP 
C)  the one with the strongest signal strength 
D)  the choice will be random 
A)  the closest 
B)  the one with the fewest wireless devices attached to the AP 
C)  the one with the strongest signal strength 
D)  the choice will be random

Question 18

What is the first step in shared key authentication?

Accepted Answer

A)  AP encrypts challenge text and sends it to wireless device 
B)  wireless device encrypts challenge text and sends it to AP 
C)  AP sends wireless device an authentication frame that contains a block of text known as the challenge text 
D)  wireless device sends an authentication frame to the AP 
A)  AP encrypts challenge text and sends it to wireless device 
B)  wireless device encrypts challenge text and sends it to AP 
C)  AP sends wireless device an authentication frame that contains a block of text known as the challenge text 
D)  wireless device sends an authentication frame to the AP

Question 19

Match between columns
                        Premises: digital documents that associate an individual with a key value
segments in a packet
device may drop the connection with one access point and establish a connection with another
as a mobile device moves farther away from the AP, the transmission speed decreases
movement between cells in a ESS
wireless devices communicate directly between themselves
each device asked in sequence if it wants to transmit
receiving wireless device looking for beacon frames
any device can attempt to transmit a message at any time

Accepted Answer

The Answer of roaming and frames and contention and ad is...

Question 20

The first major function of the MAC layer involves defining procedures for a wireless device to discover the WLAN.

Accepted Answer

A) True 
 B)False

How does open system authentication work?

Wireless authentication involves a user logging on to the access point.

A wireless device sends an authentication frame to the AP. The AP sends back an authentication frame that contains a block of text known as the ____________________.

____ effectively prevents collisions because every device must wait until it receives permission before it can transmit.

An access point sends out a beacon frame containing a ____ identifying the stations that have buffered frames waiting at the access point.

____________________ IP provides a mechanism within the TCP/IP protocol to support mobile computing by using a home agent as a forwarding mechanism to keep track of where the mobile computer is located.

All frames contain the MAC address of the source and destination device, a frame sequence number, and a frame ____ used for error detection.

CSMA/CA reduces collisions is by using explicit frame acknowledgment. Describe how frame acknowledgment works.

A BSS is ____.

Describe IP addresses and explain how they are allocated and used.

The 802.11 standard provides an option that can be used when collisions occur due to a hidden node. That option is known as ____.

A home agent is a forwarding mechanism that keeps track of where the mobile computer is located.

With MobileIP, the ____ assigns the mobile computer a new (but temporary) IP number.

Describe power management for an ad hoc configuration.

What is a management frame? What are the fields in this type of frame?

In an infrastructure network the beacon interval is normally set to ____ ms, although it can be modified.

On ESS networks that have multiple access points, the wireless device might actually receive beacon frames from several APs. Which AP would a wireless device generally choose in this case?

What is the first step in shared key authentication?

The first major function of the MAC layer involves defining procedures for a wireless device to discover the WLAN.

Its a Wireless World

Wireless LAN Devices and Standards

How Wireless Works

IEEE 80211 Physical Layer Standards

Planning and Deploying a Wireless LAN

Conducting a Site Survey

Wireless LAN Security and Vulnerabilities

Implementing Wireless Lan Security

Managing a Wireless LAN

Network Settings and Wireless LAN Troubleshooting

Personal, Metropolitan, and Wide Area Wireless Networks

Filters

Exam 5: IEEE 80211 Media Access Control and Network Layer Standards

How does open system authentication work?

Wireless authentication involves a user logging on to the access point.

A wireless device sends an authentication frame to the AP. The AP sends back an authentication frame that contains a block of text known as the ____________________.

____ effectively prevents collisions because every device must wait until it receives permission before it can transmit.

An access point sends out a beacon frame containing a ____ identifying the stations that have buffered frames waiting at the access point.

____________________ IP provides a mechanism within the TCP/IP protocol to support mobile computing by using a home agent as a forwarding mechanism to keep track of where the mobile computer is located.

All frames contain the MAC address of the source and destination device, a frame sequence number, and a frame ____ used for error detection.

CSMA/CA reduces collisions is by using explicit frame acknowledgment. Describe how frame acknowledgment works.

A BSS is ____.

Describe IP addresses and explain how they are allocated and used.

The 802.11 standard provides an option that can be used when collisions occur due to a hidden node. That option is known as ____.

A home agent is a forwarding mechanism that keeps track of where the mobile computer is located.

With MobileIP, the ____ assigns the mobile computer a new (but temporary) IP number.

Describe power management for an ad hoc configuration.

What is a management frame? What are the fields in this type of frame?

In an infrastructure network the beacon interval is normally set to ____ ms, although it can be modified.

On ESS networks that have multiple access points, the wireless device might actually receive beacon frames from several APs. Which AP would a wireless device generally choose in this case?

What is the first step in shared key authentication?

The first major function of the MAC layer involves defining procedures for a wireless device to discover the WLAN.

Its a Wireless World

Wireless LAN Devices and Standards

How Wireless Works

IEEE 80211 Physical Layer Standards

Planning and Deploying a Wireless LAN

Conducting a Site Survey

Wireless LAN Security and Vulnerabilities

Implementing Wireless Lan Security

Managing a Wireless LAN

Network Settings and Wireless LAN Troubleshooting

Personal, Metropolitan, and Wide Area Wireless Networks

Filters