Question 1

According to this figure, which statement is correct about the IPv6 routing information calculated by the R4 router through IS-IS?

Options :

A : day4have1stripIS-ISdefault route

B : R4have2equivalentIS-ISdefault route

C : R4have2not equivalentIS-ISdefault route

D : R4withoutIS-ISrouting entry for

Answer: B

Question 2

In PLSVPN, in order to distinguish IPv4 prefixes that use the same address space, the value of R0 is added to the IPv4 address. The correct description of the following options is:

Options :

A : On a PE device, each VP instance corresponds to a value of 0. On the same PE device, the RD value must be unique.____, ____, ____.

B : RD can be used to control the publication of 1 routing information

C : RD is encapsulated in Update message as BGP extended community attribute during delivery

D : After the PE receives the IPv4 route from the CE, it adds RD to the IPv4 route to convert it into a globally unique VPN-IPv4 route, and publishes it on the public network

Answer: A,C

Question 3

On the OSPFv3 network shown in the figure, the IPv6 address of Loopback0 on R3 is 2000-3, and OSPFv3 is enabled. Which of the following statements are true?

Options :

A : R2 definitely generates a Link-LSA

B : The Link-LSA generated by R2 does not exist in the LSDB of Rl.

C : Rl definitely generates a Network-LSA.

D : R3 definitely generates an Intra-Area-Prefix-LSA.

Answer: A,B,D

Question 4

the configuration file of the device. Is the following statement D wrong?

Options :

A : Regardless of whether the device is configured with apricotBPDU Tunnel,neither will be correctMSTPmake an impact

B : Port connected to user terminal equipmentMSTPWhether it is disabled or configured as an edge port

C : Check port configuration to confirm enableMSTPWhether the port is enabled with the protocol packet sending command. Such as:bpdu enable

D : Check if the port is added to the correct oneWLAN

Answer: A

Question 5

In the VLAN aggregation technology, multiple Sub-VLANs are used to isolate wide-open domains, and these Sub-VLANs are aggregated.

Synthesizing a logical Super-VLAN, a company divides different departments into different Sub-VLANs,

because

Sub-VL AN not only includes physical connection, but also can establish three-layer VLAN ANIF interface,

which can directly carry out three-layer communication with external network.

Options :

A : True

B : False

Answer: B

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