What is the requirement of Remote Triggered Black Hole （RTBH ） filtering？（）A、IBGP updates exchange between trigger router and black hole routerB、EBGP updates exchange between trigger router and black hole routerC、OSPF updates exchange between trigger rout

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What is the requirement of Remote Triggered Black Hole （RTBH ） filtering？（）

A、IBGP updates exchange between trigger router and black hole router
B、EBGP updates exchange between trigger router and black hole router
C、OSPF updates exchange between trigger router and black hole router
D、ISIS updates exchange between trigger router and black hole router

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相似问题和答案

第1题：

Martin: Can you cover for me on Sunday? I'm supposed to teach the high school class. Lisa: Sure. ______ ? Martin: We're going to the beach for the weekend. Lisa: Well, don't worry. I'll take good care of Sunday school.

A．What's in

B．What's the thing

C．What's up

D．What's down

正确答案：C
解析：对话中，Lisa同意帮Martin的忙，接下来Martin解释说要去海滩度周末。可见 Lisa在前面可能问他去做何事。C．What's up? 在口语中常用来表示“你怎么了?”“有什么事?”符合题意。

第2题：

— What a beautiful dress you’re wearing!— __________________.

A.No, thanks

B.Thank you

C.Yes, it is

D.Sorry, it isn’t

正确答案：B

第3题：

He doesn’t take hints easily, but he’ll _ what you’re saying.

A.catch up with

B.catch hold of

C.catch sight of

D.catch on to

参考答案：D

第4题：

49．—What about some drinks?

—__________．

A． Help， yourself

B． Good idea

C． You're welcome

D． Me，too

正确答案：B
49．B【解析】句意t——来些饮料怎么样？——好主意。选项A的意思是“自用／随便吃”；选项D的意思“我也是”，两个选项均不符合题意;选项C是用来回答 Thank you的问题，故也排除。

第5题：

Once you’re into basketball, you’ll find() great fun to play as a way to relax.

A、it

B、that

C、this

D、what

参考答案：A

第6题：

you' re failed to do what you to and i'm afraid the teacher will blame you.

A.will expect

B. will be expected

C.expected

D.were expected

参考答案：D

第7题：

－－ We had averysmall budget and I had to make decisions on what to buy. －－ so you're a good planner.()

A、It's a pity.

B、Really small

C、Very impressive

参考答案：C

第8题：

—____________________?—I want to be a scientist and it ‟s also my childhood dream.

A. What ‟s your job

B. What ‟re you doing

C. Are you a scientist

D. What ‟s your dream for the future

参考答案：D

第9题：

In the Junos OS, what handles transit traffic?()

A. Transit traffic is handled by the RE only

B. Transit traffic is handled by the PFE only

C. Transit traffic is handled by both the RE and the PFE

D. Transit traffic is not handled by the RE or the PFE

参考答案：B

第10题：

What is the appropriate response to"It's been such a wonderful lecture. Thank you very much"?

A．It's OK.
B．My duty.
C．You're welcome.
D．My pleasure.

答案：D

解析：

考查交际用语。题干问对“这是一个精彩的演讲，非常感谢”的恰当回应是什么。It’s OK“没有关系”，My duty“我的责任”，You’re welcome“不客气”，My pleasure“我很荣幸”。D项是最合适的答语，故选D。

What is the re

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