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H3C Constructing Secure optimized WANs v2.0 Sample Questions:

1. In BGP MPLS VPN in the network, the two PE respectively connected the two branches of the same private network user, is required between visits two divisions, and the BGP MPLS VPN is not part of the network Agency BGP reflector, then the two sets of PE between devices will necessarily need to establish which of the following neighbor relationship ?

A) MPLS LDP neighbor
B) OSPF neighbor
C) OSPF multi-instance neighbor
D) MP-BGP neighbor

2. As shown in the figure, the configurations of the two security gateways are:
RTA
[RTA] ike peer 123
[RTA-ike-peer-123] pre-shared-ke simp le 123
[RTA-ike-peer-123] remote-address 10.2.1.2
[RTA-ike-peer-123] local-address 10.2.1.1
[RTA-ike-peer-123]quit
[RTA] ipsec proposal 1
[RTA-ipsec-proposal-1] quit
[RTA]acl number 3000
[RTA-acl-adv-3000] rule 0 permit ip source 10.1.1.0 0.255.255.255
[RTA]ipsec polic 1 1 isakmp
[RTA-ipsec-polic-isakmp-1-1] securit acl 3000
[RTA-ipsec-polic-isakmp-1-1] ike-peer 123
[RTA-ipsec-polic-isakmp-1-1] proposal 1
[RTA-ipsec-polic-isakmp-1-1] quit
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.2.1.1 255.255.255.0
[RTA] interface Serial 0/2/1
[RTA-Serial0/2/1] ip address 10.2.1.1 255.255.255.0
[RTA-Serial0/2/1]] ipsec polic 1
RTB:
[RTB] ike peer 123
[RTB-ike-peer-123] pre-shared-ke simple 123
[RTB-ike-peer-123] remote-address 10.2.1.1
[RTB-ike-peer-123] local-address 10.2.1.2
[RTB-ike-peer-123]quit
[RTB] ipsec proposal 1
[RTB-ipsec-proposal-1] quit
[RTB]acl number 3000
[RTB-acl-adv-3000] rule 0 permit ip source 10.3.1.0 0.255.255.255
[RTB]ipsec polic 1 1 isakmp
[RTB-ipsec-polic-isakmp-1-1] securit acl 3000
[RTB-ipsec-polic-isakmp-1-1] ike-peer 123
[RTB-ipsec-polic-isakmp-1-1] proposal 1
[RTB-ipsec-polic-isakmp-1-1] quit
[RTA] interface Ethernet 0/1/0
[RTA-Serial0/2/1] ip address 10.3.1.1 255.255.255.0
[RTB] interface Serial0/2/1
[RTB-Serial0/2/1] ip address 10.2.1.2 255.255.255.0
[RTB-Serial0/2/1] ipsec polic 1
This shows that ______ .

A) either any party initiated SA negotiation can be successful
B) Only there from RTB to RTA launched the SA negotiation can succeed
C) Only there from the RTA to RTB launch of SA negotiation can succeed
D) any any party initiated SA negotiation can not succeed

3. For the label forwarding table of an LSR , the correct description is _______ .

A) with a label forwarding entry Incoming label and outgoing label can not be the same
B) with a label forwarding entry into the outgoing label and tag values are always the same
C) may be present in the same label value two label forwarding entry
D) can be present label value into two identical label forwarding entry

4. When the link type of the ONU port is Trunk , its processing method for downstream messages is _____ .

A) Only allow the packets with the default VLAN tag to pass and remove the tag
B) Only allow tagged messages to pass
C) only allowed without Tag packets to pass through, and the packets add the default VLAN of Tag
D) for without receipt of the Tag message, add the default VLAN Tag ; for received with Tag packets forwarded directly

5. The business transmission between departments of an enterprise needs to adopt IPSec to provide end-to-end security protection, and data must be encrypted for transmission.
According to the requirements of the enterprise's business transmission security, which working mode and encapsulation protocol should IPSec use ? ( Choose one or more )

A) tunnel road mode
B) transfer transport mode
C) AH encapsulation protocol
D) ESP Encapsulation Protocol

Solutions: