Question 1

Which statement about Multiprotocol Label Switching (MPLS)  is true?

Accepted Answer

A)   MPLS is popular because of its ease of use and inexpensive cost.
B)   MPLS works with any network layer protocol.
C)   MPLS is dependent on Data Link layer technology.
D)   MPLS will run over ATM, frame relay, SONET, but not Ethernet.E) None of the above
F) C) and D)

Question 2

The company you work for currently has ISDN service in place. Your supervisor wishes to know what sort of ISDN service is being used so that better alternatives can be considered. He tells you that the service has two B-Channels and a D-Channel. What ISDN format do you have?

Accepted Answer

A)   Primary Rate Interface (PRI) 
B)   Basic Rate Interface (BRI) 
C)   Basic Rate Extended (BR
E)  
D)   Asynchronous Transfer Mode (ATM) E) B) and C)
F) C) and D)

Question 3

What is the local loop, or last mile?

Accepted Answer

A)   the connection used between central offices
B)   cable between the customer premise equipment and a PC
C)   a line used by ISPs for testing T-carrier signals.
D)   the connection between the demarcation point and the COE) A) and B)
F) A) and C)

Question 4

You're the network administrator for a large bean-bag chair company. You are presenting to your supervisor several reasons to make use of cloud computing for handling data processing. Which answer would be a valid benefit of using cloud computing?

Accepted Answer

A)   always on, always available access independent of network status
B)   reduced physical plant costs
C)   increased use of localized resources
D)   decrease in user application training timeE) A) and C)
F) A) and B)

Question 5

What is the signaling method used to allocate time slots for each channel in a T-carrier line called?

Accepted Answer

A)   Time Division Multiplexing (TDM) 
B)   Time Divided Multimixing (TDM) 
C)   Time Slotted Modulation (TSM) 
D)   Time Fractionalized Division (TF
D)  E) B) and C)
F) A) and B)

Question 6

Which cloud computing category allows a company to quickly provision additional disk space?

Accepted Answer

A)   hosted development
B)   hosted applications
C)   hosted platforms
D)   hosted infrastructureE) A) and B)
F) A) and C)

Question 7

Packet switched WANs use virtual circuits to ensure that packets are delivered reliably and at the agreed-on bandwidth level.

Accepted Answer

A) True 
 B)False

Question 8

________________ is a PVC packet-switching technology that offers WAN communication over a fast, reliable, digital link. It was developed from X.25 and ISDN technology.

Accepted Answer

The answer of ________________ is a PVC packet-switching technology that...

Question 9

What two protocols are used in PPP to handle higher protocol encapsulation and connection control? Describe these two protocols.

Accepted Answer

the Link Control Protocol (LCP) is used ...

Question 10

Describe how MPLS works.

Accepted Answer

MPLS creates connection-oriented virtual...

Question 11

A __________ is a device that allows a computer, which works with digital information, to communicate over lines that use analog signals.

Accepted Answer

The answer of A __________ is a device that allows...

Question 12

Link Control Protocol is responsible for the setup of a PPP connection, as well as the termination of a connection when it has ended.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is something X.25 does NOT offer?

Accepted Answer

A)   SVCs
B)   PVCs
C)   error-free communication
D)   144 Mbps maximum throughputE) B) and C)
F) A) and D) D

Question 14

Which one of the following is NOT a typical SONET data rate?

Accepted Answer

A)   OC-3
B)   OC-48
C)   OC-768
D)   OC-9001E) A) and B)
F) A) and D)

Question 15

What is multiplexing, and where is it used?

Accepted Answer

Multiplexing allows for multiple communi...

Question 16

Your local ISP has provided you with a dedicated line that has a Committed Information Rate of 1.54 Mbps. What does this mean?

Accepted Answer

A)   1.54 Mbps is the guaranteed maximum transmission rate.
B)   1.54 Mbps is allocated and available for burst network traffic only.
C)   1.54 Mbps is the guaranteed minimum transmission rate.
D)   The dedicated line is using frame relay.E) B) and D)
F) All of the above C

Question 17

Which of the following protocols is NOT used for Windows 7 VPN connections?

Accepted Answer

A)   SMTP
B)   PPTP
C)   L2TP
D)   SSTPE) C) and D)
F) B) and C) A

Question 18

You are a network architect for an IT consulting company. One of your clients needs a WAN connection and has asked you about the disadvantage of a packet-switched WAN method. Which of the following is a disadvantage that applies?

Accepted Answer

A)   low bandwidth
B)   expensive compared to leased lines
C)   suspect reliability
D)   shared bandwidthE) None of the above
F) C) and D)

Question 19

You have been asked to install a VPN remote access solution using Windows Server.What do you need to install?

Accepted Answer

A)   Microsoft Mobile User Service (MMUS) 
B)   Windows Server Remote Access (WSR
A)  
C)   Routing and Remote Access Service (RRAS) 
D)   Dialup and Remote Access Services (DRAS) E) C) and D)
F) B) and D)

Question 20

Which of the following terms describes the category of cloud computing in which a customer develops applications using development tools and infrastructure provided by the service provider?

Accepted Answer

A)   hosted development
B)   hosted applications
C)   hosted platforms
D)   hosted infrastructureE) B) and D)
F) A) and B)

Exam 12: Wide Area Network Essentials

Which statement about Multiprotocol Label Switching (MPLS) is true?

Correct AnswerverifiedShow Answer

The company you work for currently has ISDN service in place. Your supervisor wishes to know what sort of ISDN service is being used so that better alternatives can be considered. He tells you that the service has two B-Channels and a D-Channel. What ISDN format do you have?

Correct AnswerverifiedShow Answer

What is the local loop, or last mile?

Correct AnswerverifiedShow Answer

You're the network administrator for a large bean-bag chair company. You are presenting to your supervisor several reasons to make use of cloud computing for handling data processing. Which answer would be a valid benefit of using cloud computing?

Correct AnswerverifiedShow Answer

What is the signaling method used to allocate time slots for each channel in a T-carrier line called?

Correct AnswerverifiedShow Answer

Which cloud computing category allows a company to quickly provision additional disk space?

Correct AnswerverifiedShow Answer

Packet switched WANs use virtual circuits to ensure that packets are delivered reliably and at the agreed-on bandwidth level.

Correct AnswerverifiedShow Answer

________________ is a PVC packet-switching technology that offers WAN communication over a fast, reliable, digital link. It was developed from X.25 and ISDN technology.

Correct AnswerverifiedShow Answer

What two protocols are used in PPP to handle higher protocol encapsulation and connection control? Describe these two protocols.

Correct Answerverifiedthe Link Control Protocol (LCP) is used ...View AnswerShow Answer

Describe how MPLS works.

Correct AnswerverifiedMPLS creates connection-oriented virtual...View AnswerShow Answer

A __________ is a device that allows a computer, which works with digital information, to communicate over lines that use analog signals.

Correct AnswerverifiedShow Answer

Link Control Protocol is responsible for the setup of a PPP connection, as well as the termination of a connection when it has ended.

Correct AnswerverifiedShow Answer

Which of the following is something X.25 does NOT offer?

Correct AnswerverifiedD

Which one of the following is NOT a typical SONET data rate?

Correct AnswerverifiedShow Answer

What is multiplexing, and where is it used?

Correct AnswerverifiedMultiplexing allows for multiple communi...View AnswerShow Answer

Your local ISP has provided you with a dedicated line that has a Committed Information Rate of 1.54 Mbps. What does this mean?

Correct AnswerverifiedC

Which of the following protocols is NOT used for Windows 7 VPN connections?

Correct AnswerverifiedA

You are a network architect for an IT consulting company. One of your clients needs a WAN connection and has asked you about the disadvantage of a packet-switched WAN method. Which of the following is a disadvantage that applies?

Correct AnswerverifiedShow Answer

You have been asked to install a VPN remote access solution using Windows Server.What do you need to install?

Correct AnswerverifiedShow Answer

Which of the following terms describes the category of cloud computing in which a customer develops applications using development tools and infrastructure provided by the service provider?

Correct AnswerverifiedShow Answer

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the Link Control Protocol (LCP) is used ...
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MPLS creates connection-oriented virtual...
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D

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Multiplexing allows for multiple communi...
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C

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