In an MPLS BGPVPN networking that does not enable MPLS penultimate hop pop-up technology. When the message reaches the last hop PE, the message has two layers of labels, and the two layers of label values can be the same.

• A.FALSE
• B.TRUE

Comment: *

Name: *

Email: *

Verification: *

Regarding the MPLS handling mode of TTL, the following description is correct?

• A.Pipe mode. When an IP message passes through an MPLS network, the IPTTL minus l at the entry point is mapped to the MPLS TTL field
• B.In Unifor mode, when an IP message passes through an MPLS network, the inbound IPTTL is minus 1. The MPLSTTL field is a fixed value
• C.In MMLSVPI, if you need to hide the structure of the MPLS backbone network, you can use the Uniform mode on Ingress for private network messages
• D.MPLS tags in the TTL, which mean the same as the TTL domain in the IP header. TTL prevents mpLS networks from creating routing loops

Comment: *

Name: *

Email: *

Verification: *

??? aggregate ipv4-address { mask/masklength }[as-set lattribute-policy route-policy-namel ldetail-suppressedlorigin-policy route- in policy-name2[suppress3policy route-policy-name3], multiple parameters can be used to influence summary routes and their results. The correct description about the command is? (Multiple choice questions).

• A.If As-set is configured, the A S_PATH of the aggregate route contains ass path information for all specific routes in case the route loop is blocked
• B.If Origin-policy is configured, only detail routes that match Route-policy can participate in aggregation
• C.If You configure. The Interface-policy, you can change the properties of the aggregate route
• D.If Suppress-policy is configured, aggregate routes are also generated, and the if-match clause in Route-policy is used to pick suppressed detail routes. Detail routes that match Route-policy are still advertised to other BGP neighbors

Comment: *

Name: *

Email: *

Verification: *

Router A has an IP route entry with a purposeful CIDR block of 10001/32 and an outgoing interface of GigabitEthernetO/0/1. Now add the following configuration: acd number 2000 rule 10 permit source1001.10#traffic classifier test if-match acl 2000 # traffic behavior test remarkdscp cs3#traffic policy test classifier test behavior test# interfaceGigabitftherneto/0/1 ip address 1001212552552550 traffic-policy test outbound#assuming router A received a destination IP of 10001 Of packets, the following statements are correct:

• A.If the data packet source lIP address is 1001.2, it can be forwarded with the DSCP field marked CS3
• B.If the packet source IP address is 1001.1, it can be forwarded while the DSCP field is marked as CS3
• C.If the packet source IP address is 1001.2, it cannot be forwarded
• D.If the packet source IP address is 1001.2, it can be forwarded while the DSCP field remains unchanged

Comment: *

Name: *

Email: *

Verification: *

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

• A.Duplicate address detection is implemented via RS and RA messages
• B.IPv6 duplicate address detection technology is similar to free ARP in IPv4
• C.IPv6 unicast address is called a tentative address after it is assigned to an interface and before it is detected by duplicate addresses
• D.The interface needs to perform duplicate address detection before enabling any of the unicast IPv6 addresses

Comment: *

Name: *

Email: *

Verification: *