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单选题 What is true about Unicast RPF in strict mode?()

A

It works well with a multihomed environment.

B

It will inspect IP packets that are encapsulated in tunnels, such as GRE,LT2P,or PPTP.

C

uRPF is performed within the CEF switching path.

D

There might be a problem with DHCP as Unicast RPF is blocking packets with a 0.0.0.0 sourceaddress.

单选题 Which statement is true about TCN propagation?()

A

The originator of the TCN immediately floods this information through the network.

B

The TCN propagation is a two step process.

C

A TCN is generated and sent to the root bridge.

D

The root bridge must flood this information throughout the network.

多选题 Which two options are contained in a VTP subset advertisement?()

A

followers field

B

MD5 digest

C

VLAN information

D

sequence number

单选题 Which information will the Cisco IOS command show ip ospf rib display?()

A

only the local OSPF routes

B

only the OSPF routes installed in the routing table

C

only the remotely learned OSPF routes

D

all the OSPF routes from the OSPF database that are eligible to be put in the routing table

单选题 While deploying a new switch, you accidently connect ports 3/12 and 3/18 together, creating a loop. STP detected it and placed port 3/18 in blocking mode. Why did STP not place port 3/12 in blocking mode instead? ()

A

 Port 3/12 was already up and forwarding before the loop was created.

B

 Port priority is based on lowest priority and lowest port number.

C

 You connected the wire on port 3/18 last.

D

 None of the above, it is purely random.

多选题 Which three options are considered in the spanning-tree decision process?()

A

lowest root bridge ID

B

lowest path cost to root bridge

C

lowest sender bridge ID

D

highest port ID

E

highest root bridge ID

F

highest path cost to root bridge

单选题 Based on the exhibit presented. What will be the objective of this route map when applied to traffic passing through a router?()

A

 Take any packet sourced from any address in the 10.2.0.0/16 network or destined to 10.1.14.25 and set the next hop to 10.1.1.1

B

 Take any packet sourced from any address in the 10.2.0.0/16 network and destined to 10.1.14.25 and set the next hop to 10.1.1.1

C

 Nothing; extended access lists are not allowed in route maps used for policy-based routing

D

 Drop any packet sourced from 10.2.0.0/16

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