Real Huawei H12-821_V1.0 practice exam questions for easy pass!
Last Updated: Jun 19, 2026
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1. Which of the following descriptions of link aggregation in LACP mode is correct?
A) The number of active ports cannot be set in LACP mode.
B) There can only be a maximum of 4 active ports in LACP mode.
C) In LACP mode, all active interfaces participate in data forwarding and share load traffic.
D) In LACP mode, the devices at both ends of the link send LACP messages to each other.
2. In MTSP, ____ port is a special domain edge port, and its role on CIST is Root Port.
3. Which of the following statements about Layer 2 roaming and Layer 3 roaming is correct? (Multiple choice)
A) If the VLAN IDs associated with the front and back are the same when the STA roams, it must belong to Layer 2 roaming
B) Layer 2 roaming means that the client roams in the same subnet
C) The VLAN on the AP service set associated with the STA must be the same before and after layer-3 roaming
D) Layer 3 roaming means that the client roams between different subnets
4. Which of the following descriptions of VRRP versions is incorrect?
A) VRRPv2 is suitable for both IPv4 and IPv6 networks
B) The time interval for VRRPv2 to send advertisement messages is in seconds.
C) VRRPv2 supports authentication function
D) VRRPv3 does not support authentication function
5. Which of the following descriptions of stateful inspection firewalls is correct?
A) When the stateful detection firewall checks the packets, the previous and later packets of the same connection are not relevant.
B) Because the UDP protocol is a connectionless protocol, the stateful detection firewall cannot match the state table of UDP packets.
C) The stateful detection firewall only needs to match the access rules for the first packet of the connection, and subsequent packets of the connection are directly matched in the state table.
D) Stateful inspection firewalls need to match rules for each data packet entering the firewall.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: Only visible for members | Question # 3 Answer: B,D | Question # 4 Answer: A | Question # 5 Answer: D |
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