H31-161 무료 덤프문제 온라인 액세스

The inner VLAN tag in layer 2 user packets is used to differentiated key services from other services. If packets are not processed after being encapsulated by QinQ, the 802. 1p information of the inner VLAN tag becomes invalid. After the QinQ is employed, three methods can be used to configure conditions for sensing 8021p configuration of the inner VLAN tag:
1. Reset the 802.1p of the outer VLAN tag regardless of the existing 02 1p configurations of the inner VLAN tag.
2. Automatically swap the 802. 1p configurations of the inner VLAN tag to that of the outer VLAN tag.
3. Reset the 802.1p configurations of the outer VLAN tag based on the existing 802.1p configurations of the different VLAN tags

• A.True
• B.False

On a metropolitan area network, VIP customers access the network through the MPLS VPN to ensure their security. Which of the following security deployments are required for PEs?

• A.Configure the ACL to filter out IP packets that use the IP address of the CE-connected interface as the destination address.
• B.Configure the ACL to filter out data packets with common network viruses at the interface connected to the CE.
• C.Deploy protocol authentication if a router protocol is used between PEs and CEs.
• D.Configure the CP-CAR on the interface connected to the CE.

acl number 2000
rule 15 permit source 225.0.0.0 0.0.0.255
#
interface Ethernet6/1/1
ip address 40.1.1.4 255.255.255.0
igmp version 3
igmp group-policy 2000
igmp enable
pim sm
#
The preceding are partial router configurations. Which of the following behaviors does Ethernet
6/1/1 perform after receiving Internet Group Management Protocol Version 2 (IGMPv2) Report messages for multicast groups 225.0.0.1 and 225.0.1.1?

• A.Do not create a record for group 225.0.0.1.
• B.Do not create a record for group 225.0.1.1.
• C.Create a record for group 225.0.1.1.
• D.Create a record for group 225.0.0.1.

Which of the following is the maximum length of the Ethernet frame encapsulated by QinQ?

• A.1518
• B.1522
• C.1526
• D.1530

In the inter-AS multicast, which statement about transmitting MSDP SA messages is false?

• A.The router uses the SA cache to store SA messages.
• B.The SA message contains the multicast source and group information
• C.The router checks the RPF after receiving SA messages.
• D.SA messages can be transmitted only between RPs in different PIM networks.