H12-351_V1.0 Exam Dumps - HCIE-WLAN (Written) V1.0

In a dual-link backup scenario, when the active link recovers, the AP waits for 15 Echo intervals before switching back to the original primary WAC. This prevents frequent link switchovers caused by unstable links.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/dual-link-backup

An AP may preferentially use the BTM mode to steer some STAs that are compliant with 802.11v protocol. BTM stands for BSS Transition Management, which is a feature defined in 802.11v protocol that allows an AP to send a request to a STA to switch to another BSS.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/btm

A router is not included in a typical RFID system. A typical RFID system consists of three components: RFID tag, RFID reader, and information processing platform. The RFID tag is attached to the object to be identified, the RFID reader communicates with the tag and reads its information, and the information processing platform processes and stores the data collected by the reader.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/rfid

Broadcast address is not an IPv6 address type. IPv6 does not support broadcast addressing, but uses multicast addressing instead. The other options are valid IPv6 address types. Unicast address identifies a single interface, multicast address identifies a group of interfaces, and anycast address identifies multiple interfaces but delivers packets to only one of them.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/ipv6-address-types

URL filtering supports four matching modes: exact matching, suffix matching, prefix matching, and keyword matching. The priority order of these modes is as follows:

• Exact matching: The highest priority. An exact match means that a URL entered by a user is exactly the same as a URL in a blacklist or whitelist.
• Suffix matching: The second highest priority. A suffix match means that a URL entered by a user ends with a suffix in a blacklist or whitelist.
• Prefix matching: The third highest priority. A prefix match means that a URL entered by a user starts with a prefix in a blacklist or whitelist.
• Keyword matching: The lowest priority. A keyword match means that a URL entered by a user contains a keyword in a blacklist or whitelist.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/url-filtering

 IPsec uses authentication headers (AHs) and encapsulating security payloads (ESPs) to ensure secure transmission of service data on the network. AHs provide authentication and integrity verification for the sender and the receiver, while ESPs provide encryption and optional authentication for the data.

References: https://support.huawei.com/enterprise/en/doc/EDOC1100058940/8a8f1c9b/ipsec