Pass the Huawei HCIA-Datacom H12-811_V1.0 Questions and answers with CertsForce

Detailed Explanation:

An edge port in RSTP (Rapid Spanning Tree Protocol) is designed to immediately transition to the forwarding state without participating in the spanning tree calculation. This allows for quicker convergence and is suitable for ports connected to end devices (not to other switches).

OSPFv1 (B): Was an experimental version, not widely used.

OSPFv2 (C): Used for IPv4 networks, does not support IPv6.

OSPFv3 (D): Specifically designed for IPv6 networks and includes additional features like security and address scope handling.

OSPFv4 (A): This version does not exist.

Thus, the correct answer is D (OSPFv3).

The command lease day 0 hour 10 sets the lease time for DHCP-assigned IP addresses to 10 hours. This setting provides a short, specific lease duration for dynamically assigned IP addresses, which can be useful in networks where devices frequently join and leave, minimizing IP address retention time​.

Comprehensive and Detailed Explanation:

The TCP/IP model consists of four layers:

Application Layer (Includes HTTP, FTP, DNS, etc.)

Transport Layer (Includes TCP, UDP)

Internet Layer (Same as OSI Network Layer)

Network Access Layer (Same as OSI Data Link & Physical Layers)

However, the OSI model has seven layers, which include:

Presentation Layer (Handles data translation, encryption, compression)

Session Layer (Manages sessions between applications)

Since the Presentation Layer and Session Layer are part of OSI and not TCP/IP, they do not exist in the TCP/IP model.

✅ Reference: HCIA-Datacom Network Principles Guide – TCP/IP Model vs. OSI Model

Comprehensive Explanation: In RSTP (Rapid Spanning Tree Protocol), the Alternate Port is the backup path to the root bridge. If the current root port fails, the Alternate Port immediately transitions to the forwarding state, providing a new path to the root bridge with minimal delay. This rapid transition is one of the key improvements of RSTP over the older STP protocol. Backup ports, on the other hand, provide redundancy on the same switch, and edge ports are used to connect directly to end devices.

Detailed Explanation:In Huawei's VRP (Versatile Routing Platform) command-line interface, when files are deleted using the delete or delete /unreserved command, they are moved to the recycle bin rather than being permanently deleted. To permanently delete these files, they need to be removed from the recycle bin using the reset recycle-bin command​​.

Comprehensive Explanation: The wildcard mask 0.0.254.255 corresponds to a range of IP addresses where the second octet can vary between 2 and 4, and the third octet can vary between 0 and 255. This means the ACL rule matches IP addresses in the range 10.0.2.0 to 10.0.4.255. The only option that falls within this range is 10.0.4.5, making it the correct answer.

Detailed Explanation:RSTP (Rapid Spanning Tree Protocol) combines the Blocking, Listening, and Disabled states into Discarding, reducing the number of states to Discarding, Learning, and Forwarding. RSTP does not use a separate Listening state, as in standard STP. (Reference: HCIA-Datacom Training Material, RSTP Port States)