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单选题Which timing mode is most appropriate for an ONS 15454 that has lost its BITS-1 and optical references？（）Aline timingBloop timingCinternal timingDthrough timingEexternal timing

题目
单选题
Which timing mode is most appropriate for an ONS 15454 that has lost its BITS-1 and optical references？（）
A

 line timing

B

 loop timing

C

 internal timing

D

 through timing

E

 external timing

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相似问题和答案

第1题：

Which timing mode is most appropriate for an ONS 15454 that has lost its BITS－1 and optical references?()

A.line timing

B.loop timing

C.internal timing

D.through timing

E.external timing


参考答案：C

第2题：

With R4.0, how many total DCC tunnel connections can each ONS 15454 support using the TCC＋ card?()

A.10

B.32

C.64

D.84

E.96


参考答案：B

第3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4题：

Which three timing modes are supported on the ONS 15454 shelf? （）(Choose three.)

  • A、line timing
  • B、loop timing
  • C、internal timing
  • D、through timing
  • E、external timing

正确答案:A,C,E

第5题：

Which is the most advantageous relationship mode between teachers and students for the development of students?

A.Managerial mode．
B.Permissive mode．
C.Arbitrary mode．
D.Democratic mode．

答案：D
解析：
考查师生关系模式。句意为“为了学生的发展，教师和学生之间最有益处的关系模式是什么”。根据句意可知D项“民主模式”正确。

第6题：

Which three timing modes are supported on the ONS 15454 shelf? ()(Choose three.)

A. line timing

B. loop timing

C. internal timing

D. through timing

E. external timing


参考答案：A, C, E

第7题：

Click the Exhibit button. Within an ONS 15454, you are provisioning a circuit on an unprotected UPSR ring. In the exhibit, which two must you configure?() (Choose two.)

A. revertive

B. circuit type

C. circuit size

D. bidirectional

E. protected drops

F. switch on PDI-P


参考答案：B, C

第8题：

The ML－series Ethernet card on the ONS 15454 provides up to ()active Q－in－Q instances per card.

A.255

B.512

C.1024

D.4096


参考答案：A

第9题：

Which timing mode is appropriate for an SDH NE that is adjacent to an SDH NE Bits-1 timing？ （）

  • A、 DUS
  • B、 line timing
  • C、 loop timing
  • D、 internal timing
  • E、 through timing

正确答案:B

第10题：

Which three timing modes are supported on the ONS 15454 shelf？ （）

  • A、 line timing
  • B、 loop timing
  • C、 internal timing
  • D、 through timing
  • E、 external timing

正确答案:A,C,E

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