Free Huawei H12-811_V1.0 Practice Exam with Questions & Answers | Set: 7

Comprehensive Explanation: The IEEE 802.11g standard operates exclusively in the 2.4 GHz frequency band, offering data rates up to 54 Mbps. Other standards, such as 802.11a, operate in the 5 GHz band, while 802.11n and 802.11ax support both 2.4 GHz and 5 GHz frequency bands, making 802.11g the only standard in this list that is limited to 2.4 GHz.

Advanced ACLs (3000-3999) allow filtering based on:

Source and Destination IPs

Protocol Number (C - Correct)

Destination Port Number (B - Correct)

Time-range (D - Correct)

A (Incorrect): ACLs do not filter based on the source interface, but rather on IPs, ports, and protocols.

Thus, the correct answer is A (Source Interface).

In RSTP, both alternate and backup ports do not forward user traffic, but they can still receive and process BPDUs (Bridge Protocol Data Units). This allows the network to quickly reconfigure if the active path fails, as these ports are already participating in spanning tree calculations​.

SNMP (Simple Network Management Protocol) supports the use of traps, which are unsolicited messages sent to the SNMP manager when specific events occur. Traps enable devices to report faults or important events as they happen, facilitating proactive fault management and quicker response times by network administrators​.

Static vs. Dynamic Routing:

Static routing: Routes manually configured by the network engineer. These do not adapt dynamically to network changes​​.

Direct routing: Routes automatically learned when a router is directly connected to a network. This is not a dynamic routing protocol​.

Dynamic Routing Protocols:

OSPF (Open Shortest Path First): A dynamic Interior Gateway Protocol (IGP) that calculates the best route based on link state information​.

BGP (Border Gateway Protocol): A dynamic Exterior Gateway Protocol (EGP) used for routing between autonomous systems​​.

Correct Answers:The dynamic routing protocols are C (OSPF) and D (BGP).

A (Correct): The client initiates the connection using a random source port (50190).

B (Correct): The packets show the TCP three-way handshake (SYN, SYN-ACK, ACK).

C (Incorrect): The client initiates the connection (10.0.12.1), and the server responds (10.0.12.2), so the roles are reversed in this statement.

D (Correct): The handshake packets contain no application-layer data, only TCP control flags.

Thus, the correct answer is C (False Statement).

TPID (Tag Protocol Identifier) is a field in the VLAN tag that identifies 802.1Q-tagged frames.

The correct TPID value for 802.1Q is 0x8100.

0x9100 (B) is used for Q-in-Q (double tagging).

0x7200 (A) and 0x8200 (D) are incorrect values.

Thus, the correct answer is C (0x8100).

Detailed Explanation:The ACL (Access Control List) configuration only permits IP address 172.16.105.2. By applying this ACL to the Telnet server, only devices from this IP can establish a Telnet connection, while all others are denied access. (Reference: HCIA-Datacom Training Material, ACLs and Telnet Access Control)

On Huawei routers running VRP, the reset saved-configuration command is used to delete the saved startup configuration file.

Option A (Incorrect): This command does not replace the saved configuration with the running configuration. Instead, it deletes the saved startup configuration.

Option B (Incorrect): The configuration file for the next startup is NOT retained. Instead, it is erased, meaning the device will boot with default settings if restarted.

Option C (Correct): Selecting Y (Yes) confirms the deletion of the saved startup configuration file, meaning the router will no longer have a saved configuration at the next reboot.

Option D (Incorrect): Selecting N (No) cancels the operation and keeps the saved startup configuration intact.

Thus, the correct answer is C. To clear the configuration file for next startup, select Y.