Helping Hand Questions for H12-811_V1.0

Tracert (Traceroute) works by sending packets with progressively higher TTL (Time-to-Live) values, causing them to expire at each router along the path. When TTL expires, the router sends back an ICMP "Time Exceeded" message, which includes the source IP address of that router. This allows Tracert to record the IP addresses of each router on the path to the destination​.

Detailed Explanation:

Probe Request: Sent by the client to detect nearby APs.

Probe Response: Sent by APs in response to the client’s request.

Beacon: Periodically broadcast by APs to announce their presence and SSID. The Discovery packet type does not exist in the 802.11 standard.

(Reference: HCIA-WLAN Training Material, WLAN Packet Types)

The BSSID (Basic Service Set Identifier) serves as the MAC address identifier for each Virtual Access Point (VAP) on an AP. Each BSSID uniquely identifies an SSID on a specific radio of an AP, allowing clients to associate with the correct access point in a multi-AP environment​.

Detailed Explanation:In manual load balancing mode, all active interfaces forward traffic, distributing it evenly across links without LACP. This allows for static load balancing. Option B is incorrect because LACP (Link Aggregation Control Protocol) is not involved in manual mode. (Reference: HCIA-Datacom Training Material, Link Aggregation and Manual Load Balancing)