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下列關于互斥方案經濟效果評價方法的表述中正確的是（)。A．采用凈年值法可以使壽命不等的互斥方

下列關于互斥方案經濟效果評價方法的表述中正確的是()。

A．采用凈年值法可以使壽命不等的互斥方案具有可比性

B．最小公倍數法適用于某些不可再生資源開發型項目

C．采用研究期法時不需考慮研究期以后的現金流量情況

D．方案重復法的適用條件是互斥方案在某時間段具有相同的現金流量

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更多“下列關于互斥方案經濟效果評價方法的表述中正確的是（)。A．采用凈年值法可以使壽命不等的互斥方”相關的問題

第1題

You have a firewall filter applied in an inbound direction on a customer interface. You wo

uld like this filter to protect your network from a spoofed denial of service attack. Which action should be configured to accomplish your goal？（）

A. then reject

B. then discard

C. then next filter

D. then silent-drop

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第2題

an active filter that provides a constant output for input signals above

An active filter that provides a constant output for input signals aboveis called an ideal （）.

A、low-pass filter

B、high-pass filter

C、bandpass filter

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第3題

You need to control SSH, HTTP, and Telnet access to an MX240 router through any interface.You have decided to use a firewall filter. How should you apply the firewall filter？（）

A. as an outbound filter on interface fxp0

B. as an outbound filter on interface lo0

C. as an inbound filter on interface fxp0

D. as an inbound filter on interface lo0

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第4題

What are three valid match criteria in a firewall filter applied to a Layer 3 interface？（）

A. IP address

B. MAC address

C. protocol

D. port

E. session ID

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第5題

An active filter that provides a constant output for input signals above fol is called an ideal _______.

A、low-pass filter

B、high-pass filter

C、bandpass filter

D、None of the above

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第6題

You have a firewall filter containing two terms applied in an inbound direction on a custo

mer interface.You would like this filter to protect your network from a spoofed denial of service attack. Which match criterion should be configured ito identify unwanted packets？（）

A. from source-port

B. from source-address

C. from destination-address

D. from destination-port

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第7題

An active filter that provides a constant output for input signals from fol to foh is called an ideal _______.

A、low-pass filter

B、high-pass filter

C、bandpass filter

D、None of the above

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第8題

Click the Exhibit button. Referring to the exhibit, which statement is true about the IP packet flow through interface ge-3/0/0.0？（）

A. All packets set to be forwarded out interface ge-3/0/0 will be dropped by the firewall filter fire1.

B. All packets set to be forwarded out interface ge-3/0/0 will NOT dropped by the firewall filter fire1.

C. All packets entering the router on interface ge-3/0/0.0 will be dropped by the firewall filter fire1.

D. All packets set to be forwarded out interface ge-3/0/0, except those sourced locally by the Routing Engine, will be dropped by the firewall filter fire1.

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第9題

What is a vaild action for a firewall filter？（）

A.then drop

B.then count

C.then allow

D.then community add

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下列關于互斥方案經濟效果評價方法的表述中正確的是（)。A．采用凈年值法可以使壽命不等的互斥方