多选题Which three are advantages of SONET？（）AAllows the transportation of all forms of trafficBMultiplexing is easyCClocks do not need to be synchronizedDReduces network complexity and costEPadding is not necessary and not permitted

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多选题

Which three are advantages of SONET？（）

Allows the transportation of all forms of traffic

Multiplexing is easy

Clocks do not need to be synchronized

Reduces network complexity and cost

Padding is not necessary and not permitted

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第1题：

Which code causes only a Level 2 adjacency to be formed under the SONET interface so-2/2/2 withFrame Relay encapsulation?Which code causes only a Level 2 adjacency to be formed under the SONET interface so-2/2/2 with Frame Relay encapsulation?（）

参考答案：D

第2题：

Which of the following uses a ring topology?()

A.DSL

B.Ethernet

C.DOCSIS

D.SONET

参考答案：D

第3题：

正确答案：
(c) For Bailey’s the advantages of counselling as a means of understanding and addressing the problems are that it provides a confidential service to the employee to discuss problems away from and not involving management or supervision. There is no obvious human resources policy at Bailey’s and counselling provides an opportunity to develop an appropriate policy from understanding individual problems.
This in turn will demonstrate organisational commitment to the employees that has been lacking in the past at Bailey’s and begin the process of better performance and increase in commitment.
At another level, counselling can provide a link to other external agencies to assist with personal problems that may be deemed too specific for resolution within Bailey’s.

第4题：

Which three are advantages to creating multiple areas in OSPF? (Choose three.) Select 3 response(s)?()

A. less frequent SPF calculations

B. fewer hello packets

C. smaller routing tables

D. reduced LSU overhe ad

E. fewer adjacencies needed

参考答案：A, C, D

第5题：

SONET Path Terminating Equipment (PTE) requires which three line codes to be supported for DS1 and DS3 circuits?() (Choose three.)

A.AMI

B.ESF

C.DUS

D.SSM

E.B3ZS

F.B8ZS

参考答案：A, E, F

第6题：

Which three SONET network elements are used for troubleshooting?()

A.line

B.path

C.circuit

D.section

E.segment

参考答案：A, B, D

第7题：

A SONET network typically uses which of the following transmission media?()

A. Single-mode fiber

B. Multimode fiber

C. Copper

D. Wireless

参考答案：A

第8题：

London was established on a ____ which had many advantages.

A、situation

B、lodge

C、basement

D、site

答案：D

第9题：

Which timing mode is appropriate for a SONET NE that is adjacent to a SONET NE using BITS－1 timing source?()

A.DUS

B.line timing

C.loop timing

D.internal timing

E.through timing

参考答案：B

第10题：

Which three are advantages of SONET？（）

A、Allows the transportation of all forms of traffic
B、Multiplexing is easy
C、Clocks do not need to be synchronized
D、Reduces network complexity and cost
E、Padding is not necessary and not permitted

正确答案:A,B,D

Which three are advantages of SONET？（）

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