Question 1

Wireless LANs use Carrier Sense Multiple Access with Collision Detection (CSMA/CD)
for medic access control.

Accepted Answer

A) True 
 B)False

Question 2

When a computer transmits at the same time because it cannot sense that another computer on the WLAN is currently transmitting is referred to as the:

Accepted Answer

A)  out of range problem 
B)  collision problem 
C)  hidden node problem 
D)  controlled access problem 
E)  media access problem 
A)  out of range problem 
B)  collision problem 
C)  hidden node problem 
D)  controlled access problem 
E)  media access problem

Question 3

Of the following,which is not true about fiber optic cable?

Accepted Answer

A)  it is thinner than unshielded twisted pair cable 
B)  it is lighter than unshielded twisted pair cable 
C)  it has a very low capacity 
D)  it is more expensive than CAT5 unshielded twisted pair cable 
E)  it is a type of guided media 
A)  it is thinner than unshielded twisted pair cable 
B)  it is lighter than unshielded twisted pair cable 
C)  it has a very low capacity 
D)  it is more expensive than CAT5 unshielded twisted pair cable 
E)  it is a type of guided media

Question 4

A hierarchical tree of domains within one organization that are linked to other trees in the organization is called a ___________.

Accepted Answer

A)  ADS 
B)  domain 
C)  forest 
D)  tree 
E)  NDS 
A)  ADS 
B)  domain 
C)  forest 
D)  tree 
E)  NDS

Question 5

The IEEE designation for the type of wireless standard that uses both the 2.4 and 5 GHz range is __________.

Accepted Answer

A)  802.11n 
B)  802.11a 
C)  802.3 
D)  802.11b 
E)  802.11g 
A)  802.11n 
B)  802.11a 
C)  802.3 
D)  802.11b 
E)  802.11g

Question 6

The data link layer protocols used by wireless LANs are similar to the ones used on Ethernet LANs

Accepted Answer

A) True 
 B)False

Question 7

The maximum data rate of a an 802.11a WLAN is

Accepted Answer

A)  24 Mbps 
B)  36 Mbps 
C)  11 Mbps 
D)  54 Mbps 
E)  9 Mbps 
A)  24 Mbps 
B)  36 Mbps 
C)  11 Mbps 
D)  54 Mbps 
E)  9 Mbps

Question 8

How can a set of 802.11b access points be configured to operate without interference?

Accepted Answer

A)  assigning each access point a different channel to communicate with clients 
B)  separate each access point by more than 10 meters 
C)  assign the same channel to no more than two access points 
D)  use omnidirectional antennas on some access points and directional on others. 
E)  none of the above 
A)  assigning each access point a different channel to communicate with clients 
B)  separate each access point by more than 10 meters 
C)  assign the same channel to no more than two access points 
D)  use omnidirectional antennas on some access points and directional on others. 
E)  none of the above

Question 9

A _________ is a group of related resources.

Accepted Answer

A)  workgroup 
B)  domain 
C)  server 
D)  client 
E)  sharepoint 
A)  workgroup 
B)  domain 
C)  server 
D)  client 
E)  sharepoint

Question 10

A workgroup switch is designed to work on the Backbone Network (BN).

Accepted Answer

A) True 
 B)False

Question 11

A major difference between Wi-Fi Protected Access (WPA)and WEP or EAP is

Accepted Answer

A)  WPA keys are longer than WEP keys. 
B)  WPA keys are encrypted 
C)  WPA keys cannot be broken by a brute force attack 
D)  WPA keys easier to manage 
E)  WEP keys are changed for every packet that is transmitted to the client. 
A)  WPA keys are longer than WEP keys. 
B)  WPA keys are encrypted 
C)  WPA keys cannot be broken by a brute force attack 
D)  WPA keys easier to manage 
E)  WEP keys are changed for every packet that is transmitted to the client.

Question 12

Which of the following is not true about switched Ethernet?

Accepted Answer

A)  The switch has a physical bus topology. 
B)  It uses a switch instead of a hub. 
C)  It has faster connections (almost immediate) than traditional Ethernet. 
D)  It essentially provides a point-to-point connection between computers. 
E)  It has forwarding tables in which entries are learned over time. 
A)  The switch has a physical bus topology. 
B)  It uses a switch instead of a hub. 
C)  It has faster connections (almost immediate) than traditional Ethernet. 
D)  It essentially provides a point-to-point connection between computers. 
E)  It has forwarding tables in which entries are learned over time.

Question 13

Another name for distributed coordination function (DCF)is __________.

Accepted Answer

A)  distributed carrier sense method 
B)  physical carrier sense method 
C)  physical carrier sense mode 
D)  distributed carrier sense mode 
E)  distributed coordination mode 
A)  distributed carrier sense method 
B)  physical carrier sense method 
C)  physical carrier sense mode 
D)  distributed carrier sense mode 
E)  distributed coordination mode

Question 14

Discuss in detail how you would improve a LAN network's performance,and what you would look for (see Figure 6-11 for input).

Accepted Answer

To improve a LAN network's performance,

Question 15

Extensible Authentication Protocol can dynamically produce WEP keys.

Accepted Answer

A) True 
 B)False

Question 16

The Network Interface Card (NIC)permits a computer to be physically connected to a network's cable,which provides the network layer connection among the computers in the network.

Accepted Answer

A) True 
 B)False

Question 17

The maximum data rate of 802.11b LANs is 12 Mbps.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following type of media is most commonly used in backbone networks because of its high capacity?

Accepted Answer

A)  fiber 
B)  infrared frequencies 
C)  coax cable 
D)  unshielded twisted pair 
E)  shielded twisted pair 
A)  fiber 
B)  infrared frequencies 
C)  coax cable 
D)  unshielded twisted pair 
E)  shielded twisted pair

Question 19

A site survey is not an important component of a WLAN design.

Accepted Answer

A) True 
 B)False

Question 20

It takes 802.11a more access points to provide the same coverage as one 802.11b access point.

Accepted Answer

A) True 
 B)False

Wireless LANs use Carrier Sense Multiple Access with Collision Detection (CSMA/CD) for medic access control.

When a computer transmits at the same time because it cannot sense that another computer on the WLAN is currently transmitting is referred to as the:

Of the following,which is not true about fiber optic cable?

A hierarchical tree of domains within one organization that are linked to other trees in the organization is called a ___________.

The IEEE designation for the type of wireless standard that uses both the 2.4 and 5 GHz range is __________.

The data link layer protocols used by wireless LANs are similar to the ones used on Ethernet LANs

The maximum data rate of a an 802.11a WLAN is

How can a set of 802.11b access points be configured to operate without interference?

A _________ is a group of related resources.

A workgroup switch is designed to work on the Backbone Network (BN).

A major difference between Wi-Fi Protected Access (WPA)and WEP or EAP is

Which of the following is not true about switched Ethernet?

Another name for distributed coordination function (DCF)is __________.

Discuss in detail how you would improve a LAN network's performance,and what you would look for (see Figure 6-11 for input).

Extensible Authentication Protocol can dynamically produce WEP keys.

The Network Interface Card (NIC)permits a computer to be physically connected to a network's cable,which provides the network layer connection among the computers in the network.

The maximum data rate of 802.11b LANs is 12 Mbps.

Which of the following type of media is most commonly used in backbone networks because of its high capacity?

A site survey is not an important component of a WLAN design.

It takes 802.11a more access points to provide the same coverage as one 802.11b access point.

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters

Exam 6: Wired and Wireless LANs

Wireless LANs use Carrier Sense Multiple Access with Collision Detection (CSMA/CD) for medic access control.

When a computer transmits at the same time because it cannot sense that another computer on the WLAN is currently transmitting is referred to as the:

Of the following,which is not true about fiber optic cable?

A hierarchical tree of domains within one organization that are linked to other trees in the organization is called a ___________.

The IEEE designation for the type of wireless standard that uses both the 2.4 and 5 GHz range is __________.

The data link layer protocols used by wireless LANs are similar to the ones used on Ethernet LANs

The maximum data rate of a an 802.11a WLAN is

How can a set of 802.11b access points be configured to operate without interference?

A _________ is a group of related resources.

A workgroup switch is designed to work on the Backbone Network (BN).

A major difference between Wi-Fi Protected Access (WPA)and WEP or EAP is

Which of the following is not true about switched Ethernet?

Another name for distributed coordination function (DCF)is __________.

Discuss in detail how you would improve a LAN network's performance,and what you would look for (see Figure 6-11 for input).

Extensible Authentication Protocol can dynamically produce WEP keys.

The Network Interface Card (NIC)permits a computer to be physically connected to a network's cable,which provides the network layer connection among the computers in the network.

The maximum data rate of 802.11b LANs is 12 Mbps.

Which of the following type of media is most commonly used in backbone networks because of its high capacity?

A site survey is not an important component of a WLAN design.

It takes 802.11a more access points to provide the same coverage as one 802.11b access point.

Introduction to Data Communications

Application Layer

Physical Layer

Data Link Layer

Network and Transport Layers

Backbone Networks

Wide Area Networks

The Internet

Network Security

Network Design

Network Management

Filters