H12-261 Online Practice Questions and Answers

In the cross-domain mode, the VPN-Option B ASBR LSP is forwarded, and the two public network pairs are exchanged.

A. Correct

B. Error

Which of the following is optimal to build a two-network loop?

A. Stacking Road aggregation + chain

B. TRILL+MSTP

C. Stacking + MSTP

D. Link Aggregation + MSTP

The following is true, is the OSPFv3 Link-LSA correct?

A. Option LSA Link-lsa field exists in the header, not the data area

B. Contains both the local address chain of this interface and all the pre-IPv6 suffixes of this interface.

C. If a previous Link-LSA Prefix Option 0x00 Prefix IPv6 suffix field is , then it will not be admitted to the single calculation.

D. Contains both the local address chain of this interface and all the previous Ipv6 suffixes in the same area on the router.

The following is true about the regional law. NSSA says

A. In the area, the NSSA OSPF hello option N 1, E 0 neighbor message, the location in the field

B. NSSA LSA, LSA FA area will generate seven categories to advertise external routes. The role of the address in the seven classes is to prevent the path from being looped.

C. In the NSSA LSA area, a silent acknowledgment will be generated to access the external network.

D. NSSA OSPF he1lo , option- N 0, E 1 in the area

The following information about the correct description is BGP4+, ?

A. Bgp4+ dampening IBGP can use the match to suppress the polling of the routing line.

B. The modified BGP router id BGP guide connection will be re-established.

C. BCP4+ Next Hop Pv6, the attribute in the address is represented by the address, which can be the next-hop road-local address chain.

D. BGP4+ does not support route self-aggregation.

Which of the following statements regarding route import is false?

A. Importing IBGP routes into the OSPF process may cause routing loops.

B. By default, the metric of external routes imported into the OSPF process \s 1 and the type of imported external routes is Type 2.

C. BGP can generate routes in either Import or Network mode. The Network mode is more precise than the Import mode.

D. After IS-IS Level-2 routes are imported to an ISTS Level-1 area, routing loops occur if no route import policy is manually configured.

If host HW1 on the network wants to join a video conference, what will the host do?

A. The host multicasts an 1GMPv2 Membership Report message that carries the expected multicast address to the local network.

B. The host multicasts an IGMPv2 Membership Report message with the multicast address for all PIM routers (224.0.0.2) to the local network.

C. The host unicasts an IGMPv2 Membership Report message to the default router on the local network.

D. The host unicasts an IGMPv2 Membership Report message to the RP.

By default, WRED is configured on a newly deployed Huawei router. Which of following statements regarding WRED are true?

A. When traffic exceeds the minimum threshold, WRED starts to discard all inbound traffic (tail drop).

B. Traffic with low bandwidth is more likely to be discarded than traffic with high bandwidth.

C. WRED selectively discards multiple TCP flows to avoid global synchronization.

D. WRED can be used to set different drop thresholds and packet loss ratio for data packets with different priorities.

Which of the following statements regarding LDP reliability is false?

A. By default, the policy for manually configuring LDP FRR specifies that backup routes with 32-bit addresses should trigger the setup of a backup LDP L5P.

B. Synchronization between LDP and IGP requires suppression of IGP route advertisement to achieve consistent LDP and IGP.

C. LDP FRR can generate an LSP as the backup of the primary L5P based on Label Mapping messages that are not from the optimal next hop. LDP FRR establishes forwarding entries for the backup LSP.

D. LDP Graceful Restart (GR) leverages the separation of the forwarding plane and control plane by MPLS to ensure uninterrupted traffic transmission during a protocol restart or active/standby switchover.

When an ABR is attached to an NSSA and translates from type 7 to type 5 LSA, it can aggregate the type 5 LSAs which are converted from type 7 LSAs.

A. True

B. False