Free Practice Questions for Huawei H12-811_V1.0 Exam

Comprehensive and Detailed In-Depth Explanation:

802.11n (Wi-Fi 4) supports both 2.4 GHz & 5 GHz.

802.11ax (Wi-Fi 6) also supports both 2.4 GHz & 5 GHz.

Incorrect Options:

802.11ac → Only supports 5 GHz.

802.11g → Only supports 2.4 GHz.

SNMPv3 was designed with enhanced security and administration features compared to previous versions. It offers robust authentication and encryption to protect against unauthorized access and eavesdropping, as well as improvements in administration with support for notification originators and proxy forwarders. These advancements make SNMPv3 the preferred version for secure network management​.

Comprehensive Explanation: Fit APs (Access Points) are designed to work in conjunction with an Access Controller (AC). They rely on the AC for configuration, management, and control of their wireless services. Without an AC, a Fit AP cannot function independently or provide wireless services. This is in contrast to Fat APs, which have their own management capabilities and can operate independently.

Comprehensive Explanation: A routing table contains several key elements:

Cost: Also known as metric, this indicates the cost associated with reaching a specific destination, such as the number of hops or link speed.

Next-hop address: This is the IP address of the next device along the route that packets should be forwarded to.

Protocol: The routing protocol (e.g., OSPF, RIP) that determined the route.

Interface: The physical or logical interface through which the router sends packets to reach the destination.

Destination/Mask: The destination network or subnet and the associated subnet mask define the range of IP addresses for which this route is valid. These elements together allow routers to efficiently forward traffic to the correct destinations.

Comprehensive Explanation: In Telnet sessions, different privilege levels determine what actions a user is allowed to perform. If users are not able to configure the IP address, it is likely that their privilege level is set incorrectly. The administrator must ensure that the Telnet users are assigned the correct privilege level (typically level 15 for full administrative rights) to allow configuration changes, including IP address modifications.

Detailed Explanation:An MPLS (Multiprotocol Label Switching) header includes the following fields:

Label: Identifies the MPLS path.

TTL (Time to Live): Limits the lifetime of the MPLS packet.

EXP (Experimental): Used for QoS marking. The Tos (Type of Service) field is part of the IP header, not MPLS.

(Reference: HCIA-Datacom Training Material, MPLS Header Fields)

Comprehensive Explanation: In OSPF (Open Shortest Path First), a router first synchronizes its Link-State Database (LSDB) with its neighbors by exchanging link-state information. Only after this synchronization process is complete does the router transition to the Full state. The Full state indicates that the router has fully converged with its OSPF neighbors and has a complete and up-to-date view of the network topology. Therefore, the router enters the Full state after synchronizing its LSDB, not before.

B (Correct): GE0/0/1 is untagged for VLAN 10, meaning it does not add VLAN tags to VLAN 10 frames.

C (Correct): GE0/0/1 is also untagged for VLAN 20, so it does not add VLAN tags to VLAN 20 frames.

D (Correct): The output shows four VLANs (10, 20, 30, 40), which were manually created.

A (Incorrect): GE0/0/2 is not explicitly mentioned, so VLAN tagging behavior cannot be confirmed.

Thus, the correct answers are B, C, and D.