Free Cisco 400-201 Exam Dumps Questions & Answers

Which statement about OSPFv3 is true?

• A.OSPFv3 authentication is performed using the authentication field in the OSPFv3 packet header.
• B.OSPFv3 runs on per subnet basis instead of per-link.
• C.OSPFv3 neighbor discovery messages can be sourced only from link-local addresses.
• D.OSPFv3 instance ID is only locally significant.

In the case of 6RD, how does the residential gateway device route the IPv6 packet received from local host?

• A.It looks for the IPv6 destination in the local IPv6 routing table.
• B.It sends all the IPv6 traffic to the Border Relay router.
• C.It looks into the local NAT table to translate the IPv6 address into an IPv4 address.
• D.It derives the IPv4 address from the IPv6 destination address.

Refer to the exhibit the 2.6.6.6/32 prefix is flapping when PE1 is flapping. Which action can fox this issue?

• A.On PE2, allow only redistribution from BGP into IS-IS on PE3, allow only redistribution from IS-IS into BGP
• B.On PE2 and PE3 reconfigure redistribute BGP into IS-IS using the metric-type external parameter
• C.configure all IS-IS instances as level-1-only
• D.configure a sham link between PE2 and PE3

In Multicast VPN (MVPN) implementations, which two of the following statements are regarding the Default MDT Group? (Choose two).

• A.There is a reduced multicast state in the MPLS core P routers.
• B.It is optionally configured for a high bandwidth multicast source to reduce multicast traffic replication to uninterested PE routers.
• C.It is used for PIM control traffic.
• D.Within the VRF configuration in the PE router, multiple Default MDT groups are configured so each VRF can support multiple multicast sources.
• E.When multicast traffic exceeds a certain configured threshold, traffic from the Data MDT is switched to the Default MDT to conserve bandwidth.

Which three of these statements about PPPoE are true? (Choose three.)

• A.Per-session accounting is possible, which allows the service provider to charge the subscriber based on session time for various services offered. The service provider can also require a minimum access charge.
• B.PPPoE implementation is susceptible to broadcast storms and possible denial-of-service attacks.
• C.You must install PPPoE client software on all hosts that connect to the Ethernet segment. This means that the access provider must maintain a CPE.
• D.You cannot use PPPoE with Cisco Service Selection Gateway.
• E.PPPoE can provide a host with access to a destination over Ethernet. You can have only one PPPoE session per PVC.