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Huawei H12-821_V1.0 Exam Syllabus Topics:

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

1. When configuring an ACL on a router, you can specify a unique number or name to identify the ACL. Once a named ACL is created, it cannot be modified. You can only delete the named ACL and reconfigure it.

A) FALSE
B) TRUE

2. CPU attack defense uses a multi-level security mechanism to implement hierarchical device protection. Match the following levels with the corresponding protection functions.

3. IGMPv2 uses the timeout mechanism for group members leaving a group. Group members can only leave a group silently. Before the timeout period expires, multicast traffic is still forwarded by the multicast router, and this is a defect.

A) FALSE
B) TRUE

4. In IP multicast transmission , packets are transmitted from a source to a group of receivers . Which of the following statements are true about IP multicast technologies?

A) Compared with broadcast, IP multicast prevents information flooding.
B) Compared with unicast, IP multicast improves information transmission security.
C) Compared with broadcast, IP multicast effectively conserves network bandwidth.
D) Compared with unicast, IP multicast increases the load of information sources.

5. When receiving a packet that does not match any session table entry, the firewall discards the packet to prevent external attacks and ensure internal information security.

A) FALSE
B) TRUE

Solutions: