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Huawei H12-821_V1.0 Exam Syllabus Topics:

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

1. In BGP, Keepalive messages are used to maintain BGP peer relationships. When a BGP router receives a Keepalive message from a peer, the BGP router sets the state of the peer to Established and periodically sends Keepalive messages to maintain the connection. By default, the device sends Keepalive messages every seconds.

2. In addition to numerous normal service packets, the CPUs of devices on a network may also receive large numbers of attack packets. To ensure that the CPUs can properly respond to normal services, the devices provide the local attack defense function.
Which of the following statements are true about this function? (Select all that apply)

A) The device can schedule the protocol packets to be sent to the CPU in the attack defense policy based on the protocol priorities so that the packets with higher priorities are processed preferentially.
B) Regardless of the packet type, the same rate limit must be set to reduce the number of packets sent to the CPU.
C) To ensure that session-based application-layer data runs properly during an attack, you can configure the dynamic link protection function.
D) CPU attack defense can also take effect on the management interface of the device.

3. Roaming technology is typically used on a large WLAN to ensure that STA (station) services are not interrupted when STAs move between coverage areas of different APs.

A) FALSE
B) TRUE

4. Which of the following statements about stack split is false?

A) If the master and standby switches are in two stacks after the split, the stack where the original master switch resides updates the topology and selects a new standby switch. The original standby switch becomes the master switch in the new stack and a new standby switch is elected.
B) If the master and standby switches are still in the same stack after the stack splits, the slave switches separated from the original master and standby switches re-elect the master and standby switches due to protocol packet timeout.
C) After a stack splits, multiple stacks have the same IP address and MAC address. To prevent network faults, the stacks perform MAD detection. The stack that fails the MAD detection shuts down all physical ports except reserved ports.
D) After a stack splits, the MAC addresses of the two stacks change immediately.

5. There are two types of BGP peer relationships : EBGP and IBGP . When configuring EBGP, ensure that the peer IP address is routable and the UDP connection can be correctly established.

A) FALSE
B) TRUE

Solutions: