Question 1

Discuss wireless network security.What are some of the critical problems,what are some of the defenses against these problems?List five potential weaknesses in security and five potential solutions to these perceived weaknesses.Define and describe SSID,WEP,EAP,WPA.

Accepted Answer

Wireless network security is a critical ...

Question 2

What is the "hidden node" problem,and what do you need to do about it in the best LAN design for wireless?

Accepted Answer

The "hidden node" problem is a challenge...

Question 3

A dedicated server LAN:

Accepted Answer

A)   can only use simple LAN software
B)   is limited to handling small databases
C)   has one or more permanently assigned servers that can enable users to share files, for example
D)   can not connect with other networks
E)   is limited to handling small filesF) B) and E)
G) A) and E)

Question 4

The three latest versions of Ethernet run at speeds of 1Gbps,10Gbps,and 50 Gbps.

Accepted Answer

A) True 
 B)False

Question 5

A(n) _____________ is used in a computer to connect it to a WLAN.

Accepted Answer

A)   Ethernet NIC
B)   antennae
C)   wireless NIC
D)   access point
E)   hubF) A) and D)
G) C) and D)

Question 6

Which of the following is not an effective way to reduce LAN network demand:

Accepted Answer

A)   move files to client computers
B)   use disk caching on the client machines
C)   find an application that places a large demand on the network and run it a time when the network is lightly loaded
D)   add hidden nodes
E)   shift the users' routinesF) B) and D)
G) A) and C)

Question 7

The server version of the Network Operating System does not:

Accepted Answer

A)   provide the software that performs the functions associated with the physical layer
B)   provide the software that performs the functions associated with the data link layer
C)   provide the software that performs the functions associated with the application layer
D)   provide the software that performs the functions associated with the network layer
E)   usually provide the software that performs the functions associated with the computer's own operating systemF) C) and D)
G) A) and D)

Question 8

Wired Ethernet is a _______________ technology for small SOHO devices,meaning that manufacturers are no longer creating new products..

Accepted Answer

A)   host
B)   legacy
C)   caching
D)   hub
E)   peakF) A) and B)
G) A) and C)

Question 9

Point Coordination Function requires that each station that wishes to transmit on the wireless network sends a request-to-transmit (RTS)packet to the access point and waits for a clear-to-send (CTS)packet from the AP before it can communicate with other nodes on the network.

Accepted Answer

A) True 
 B)False

Question 10

LANs can be categorized as either dedicated (with a dedicated server)or peer-to-peer (without a dedicated server).

Accepted Answer

A) True 
 B)False

Question 11

What is the difference between a peer-to-peer and dedicated server LAN?

Accepted Answer

A peer-to-peer (P2P) LAN and a dedicated...

Question 12

Describe CSMA,CD and CA.How does this work,in essence?Compare this to wireless LANS?How are they similar,and how are they different in terms of MAC?

Accepted Answer

CSMA, CD, and CA are all protocols used ...

Question 13

LAN metering software can be used to prohibit using more copies of a package than there are installed licenses.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not true about 10/100 Ethernet?

Accepted Answer

A)   It is not a hybrid type of Ethernet.
B)   It provides flexibility for organizations that want to use both the 10Base-T and 100Base-T standards at the same time.
C)   10/100 autosense hubs (and/or switches)  are able to detect the signal transmitted by the client's NIC and use 10 Mbps or 100 Mbps, depending on what the client uses.
D)   Depending upon how it is configured, a 10/100 Ethernet NIC can run at either 10 Mbps or at 100 Mbps.
E)   It provides flexibility for organizations that are uncertain about which Ethernet standard to use in the short term.F) A) and C)
G) B) and E)

Question 15

Traditional Ethernet is also known as shared Ethernet.

Accepted Answer

A) True 
 B)False

Question 16

Distributed Coordination Function is a media access control method used in wireless LANs where the sender waits for an ACK (acknowledgement)from the receiver before transmitting any more packets.

Accepted Answer

A) True 
 B)False

Question 17

What is the difference in a logical and physical topology?

Accepted Answer

Logical and physical topologies are two ...

Question 18

Which of the following is not determined by a site survey?

Accepted Answer

A)   feasibility of the desired coverage
B)   potential sources of interference
C)   the security of the WLAN
D)   estimated number of access points needed to provide coverage
E)   current locations of the wired network into which the WLAN will connect.F) A) and D)
G) B) and D)

Question 19

The NOS software for the server computer provides the physical,data link,and network layer functions.

Accepted Answer

A) True 
 B)False

Question 20

_____________ is the software that controls the network.

Accepted Answer

A)   Network Operating System
B)   Client Operating System
C)   Embedded Operating System
D)   Network Control System
E)   Network Software SystemF) C) and D)
G) A) and D)

Exam 6: Wired and Wireless LANs

Wired Ethernet is a _______________ technology for small SOHO devices,meaning that manufacturers are no longer creating new products..

Correct AnswerverifiedShow Answer

A dedicated server LAN:

Correct AnswerverifiedShow Answer

Distributed Coordination Function is a media access control method used in wireless LANs where the sender waits for an ACK (acknowledgement)from the receiver before transmitting any more packets.

Correct AnswerverifiedShow Answer

Point Coordination Function requires that each station that wishes to transmit on the wireless network sends a request-to-transmit (RTS)packet to the access point and waits for a clear-to-send (CTS)packet from the AP before it can communicate with other nodes on the network.

Correct AnswerverifiedShow Answer

What is the difference between a peer-to-peer and dedicated server LAN?

Correct AnswerAnswered by ExamLex AIA peer-to-peer (P2P) LAN and a dedicated...View AnswerShow Answer

What is the difference in a logical and physical topology?

Correct AnswerAnswered by ExamLex AILogical and physical topologies are two ...View AnswerShow Answer

Describe CSMA,CD and CA.How does this work,in essence?Compare this to wireless LANS?How are they similar,and how are they different in terms of MAC?

Correct AnswerAnswered by ExamLex AICSMA, CD, and CA are all protocols used ...View AnswerShow Answer

Traditional Ethernet is also known as shared Ethernet.

Correct AnswerverifiedShow Answer

LAN metering software can be used to prohibit using more copies of a package than there are installed licenses.

Correct AnswerverifiedShow Answer

What is the "hidden node" problem,and what do you need to do about it in the best LAN design for wireless?

Correct AnswerAnswered by ExamLex AIThe "hidden node" problem is a challenge...View AnswerShow Answer

A(n) _____________ is used in a computer to connect it to a WLAN.

Correct AnswerverifiedShow Answer

The three latest versions of Ethernet run at speeds of 1Gbps,10Gbps,and 50 Gbps.

Correct AnswerverifiedShow Answer

_____________ is the software that controls the network.

Correct AnswerverifiedShow Answer

The NOS software for the server computer provides the physical,data link,and network layer functions.

Correct AnswerverifiedShow Answer

Which of the following is not determined by a site survey?

Correct AnswerverifiedShow Answer

Which of the following is not an effective way to reduce LAN network demand:

Correct AnswerverifiedShow Answer

Discuss wireless network security.What are some of the critical problems,what are some of the defenses against these problems?List five potential weaknesses in security and five potential solutions to these perceived weaknesses.Define and describe SSID,WEP,EAP,WPA.

Correct AnswerAnswered by ExamLex AIWireless network security is a critical ...View AnswerShow Answer

Which of the following is not true about 10/100 Ethernet?

Correct AnswerverifiedShow Answer

LANs can be categorized as either dedicated (with a dedicated server)or peer-to-peer (without a dedicated server).

Correct AnswerverifiedShow Answer

The server version of the Network Operating System does not:

Correct AnswerverifiedShow Answer

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Answered by ExamLex AI
A peer-to-peer (P2P) LAN and a dedicated...
View Answer

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Answered by ExamLex AI
Logical and physical topologies are two ...
View Answer

Correct Answer
Answered by ExamLex AI
CSMA, CD, and CA are all protocols used ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
The "hidden node" problem is a challenge...
View Answer

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Correct Answer
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Correct Answer
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Correct Answer
Answered by ExamLex AI
Wireless network security is a critical ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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