【判断题】哪个 ACL 能够根据 TCP 端口号进行筛选？Which A

判断题【判断题】哪个 ACL 能够根据 TCP 端口号进行筛选？
Which ACL is capable of filtering based on TCP port number?

A、正确

B、错误

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单选题【单选题】标准 ACL 应放置在何处？
Where should a standard ACL be placed?

A、标准 ACL 位置并不重要。
Standard ACL location is not important.

B、标准 ACL 应放置在尽可能靠近目标的位置
Standard ACLs should be placed as close to the destination as possible.

C、。标准 ACL 应尽可能靠近源放置。
Standard ACLs should be placed as close to the source as possible.

D、标准 ACL 应放置在串行接口上。
Standard ACLs should be placed on serial interfaces.

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单选题【单选题】将 ACL 应用于路由器接口时，哪些流量被指定为出站？
In applying an ACL to a router interface, which traffic is designated as outbound?

A、从目标 IP 地址进入路由器的流量
Traffic that is going from the destination IP address into the router

B、来自源 IP 地址进入路由器的流量
Traffic that is coming from the source IP address into the router

C、路由表条目
Traffic for which the router can find no routing table entry

D、离开路由器并朝向目标主机的流量
Traffic that is leaving the router and going toward the destination host

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单选题【单选题】扩展的 ACL 应放置在何处？
Where should an extended ACL be placed?

A、扩展 ACL 位置并不重要。
Extended ACL location is not important.

B、扩展 ACL 应尽可能靠近目标。
Extended ACLs should be located as close to the destination as possible.

C、扩展 ACL 应尽可能靠近源。
Extended ACLs should be located as close to the source as possible.

D、扩展 ACL 应位于串行接口上。
Extended ACLs should be located on serial interfaces.

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单选题【单选题】从命名 ACL 中删除单个 ACE 的最快方法是什么？
What is the quickest way to remove a single ACE from a named ACL?

A、使用无访问列表命令删除整个 ACL，然后在不使用 ACE 的情况下重新创建它。
Use the no access-list command to remove the entire ACL, then recreate it without the ACE.

B、使用 no 关键字和要删除的 ACE 的序列号。
Use the no keyword and the sequence number of the ACE to be removed.

C、将 ACL 复制到文本编辑器中，删除 ACE，然后将 ACL 复制回路由器。
Copy the ACL into a text editor, remove the ACE, then copy the ACL back into the router.

D、创建具有不同编号的新 ACL，并将新的 ACL 应用于路由器接口。
Create a new ACL with a different number and apply the new ACL to the router interface.

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单选题【单选题】关于 ACL 的哪项陈述是正确的？
Which statement about ACLs is true?

A、扩展 ACL 的编号为 1300 - 2699.
Extended ACLs are numbered 1300 - 2699.

B、命名 ACL 可以是标准 ACL，也可以是扩展的。
Named ACLs can be standard or extended.

C、编号 ACL 是配置 ACL 时使用的首选方法。
Numbered ACLs is the preferred method to use when configuring ACLs.

D、标准 ACL 的编号为 1 - 199。
Standard ACLs are numbered 1 - 199.

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单选题【单选题】哪种 ICMP 消息类型应停止入站？
Which ICMP message type should be stopped inbound?

A、来源 quench
Source quench

B、echo-reply

C、echo

D、无法到达
Unreachable

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单选题【多选题】哪种通配符掩码只允许主机 10.10.10.1？
Which wildcard mask would permit only host 10.10.10.1?

A、0.0.0.0

B、0.0.0.31

C、0.0.0.255

D、0.0.255.255

E、255.255.255.255

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单选题【单选题】哪种情况会导致 ACL 配置错误并拒绝所有流量？
Which scenario would cause an ACL misconfiguration and deny all traffic?

A、使用 ip 访问分组输出命令应用标准 ACL。
Apply a standard ACL using the ip access-group out command.

B、应用具有所有拒绝 ACE 语句的 ACL。
Apply an ACL that has all deny ACE statements.

C、将命名 ACL 应用于 VTY 行。
Apply a named ACL to a VTY line.

D、在入站方向应用标准 ACL。
Apply a standard ACL in the inbound direction.

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