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Huawei H12-821_V1.0-ENU Exam Syllabus Topics:

Huawei HCIP-Datacom-Core Technology V1.0 Sample Questions:

1. Which description of the LACP protocol is correct? (Multiple choice)

A) The devices at both ends determine the active interface according to the LACP priority and interface ID of the passive interface
B) Based on IEEE802.3au standard.
C) The devices at both ends determine the active end according to the system LACP priority and system
D) Exchange information with the peer through LACPDU (Link Aggregation Control Protocol Data Unit)

2. When a routing protocol implements route import, routing information can be transferred between different routing protocols. Which of the following problems may also be caused? (Multiple choice)

A) Routing loop
B) Routing black hole
C) Suboptimal path
D) Process number conflict

3. Which of the following descriptions of OSPF's own anti-environment measures are correct? (Multiple choice)

A) Routers in the same area calculate a loop-free shortest path tree with itself as the root based on LSDB.
B) Only one ABR is allowed between the OSPF backbone area and non-backbone area.
C) ASBR is not allowed to exist in the OSPF backbone area
D) OSPF's LSA flooding has a maximum of 16 hops. If it exceeds 16 hops, the LSA will be discarded.
E) When OSPF divides areas, it stipulates that all non-backbone areas must be directly connected to the backbone area, and communications between non-backbone areas must pass through the backbone area.

4. Among the following VPN technologies, which one is likely to cause two IP packet headers in one packet? (Multiple choice)

A) GRE
B) L2TP
C) IPsec VPN
D) SSL VPN

5. When the BFD detection intervals at both ends are 30ms and 40ms respectively, which of the following option descriptions is correct?

A) The bfd can be established, take 30ms after negotiation
B) The bfd session can be established, and each can be sent at intervals according to its own time
C) The bfd session can be established, take 40ms after negotiation
D) The bfd session cannot be established

Solutions: