Question 1

When the ABR is a Type 5/7 LSA Switch router in the NSSA zone, then the ABR can be used against the

Type 7 LSA The converted type 5 LSA is aggregated.

Options :

A : True

B : False

Answer: A

Question 2

The following statement about IPSec VPN is correct ?qo

Options :

A : Two routers establish an IPSec VPN in brutal mode, so that the two devices can interact with a minimum of 4 messages to establish a tunnel.

B : Brutal mode can support NAT traversal, while main mode does not support NAT traversal.

C :

The two routers can establish OSPF neighbor relations and exchange intranet routes through the IPSec

VPN tunnel

D :

The two routers establish IPSecVPN in main mode, and from the 5th packet (included), the payload's

data will be encrypted.

Answer: D

Question 3

The default configured switch has an empty MAC address table at this time , and Host A connected to the

switch issues the first unicast data frame, so what will the switch do after receiving the teaching system?(

Single choice questions).

Options :

A :

The switch will drop the data frame

B :

The switch records the source MAC address of the data frame and floods the data frame

C :

The switch will forward data to interface

D :

based on the mesh MAC address of the data frame The switch caches the data frame and waits for the

destination host to send the effect frame before forwarding it

Answer: B

Question 4

IPv6 introduces the Solicited-Node address, which is described correctly below (multiple choice)

Options :

A : This is a specific address that is used for resolution in ARPv6 The MAC address.

B : The Solicited-Node address on the router interface is automatically generated and can have multiple.

C : If the Solicited-Node address is not configured , the router automatically generates one on each interface

D : IPv6 introduced the Solicited-Node address to support IPv6 multicast.

Answer: B

Question 5

The address resolution feature for NDP in the following description is incorrect?

Options :

A : When sending a neighbor request packet, the source address—is set as the link-local address

B : of the local interface Two types of ICMPv6 messages,

C : are used in the address resolution process, neighbor request and neighbor advertisement Address resolution implements the ability to resolve from IPv6 addresses to link-layer addresses

D : When sending a neighbor request packet, the destination address must be the multicast address of the neighbor-s requested node

Answer: A