Online Access Free H12-321 Practice Test

On the N+1 backup network, a total of 300 APs from AP1 to AP300 are deployed on AC1, and 400 APs from AP301 to AP700 are deployed on AC2. The AC can be configured as a standby AP. When the AP goes online, without changing the configuration, the following statement is wrong?

• A.If AC1 and AC2 are faulty at the same time, only the 500 APs from AP1 to AP500 can perform active/standby switchover in AC3, and the remaining 200 APs cannot go online in AC3. The services of these APs will be interrupted.
• B.If the AC1 is faulty, the APs in the AP1 to AP300 will perform the active/standby switchover in the AC3.
• C.If the AC2 is faulty, the APs of the AP301 to the AP700 will perform the active/standby switchover in the AC3.
• D.After the AC1 or AC2 fails to recover, the APs that go online in AC1 and AC2 are undefined.

When a neighbor passively detects, what information does the legal AP need to collect and report to the AC?

• A.Interference between APs
• B.Interference from illegal APs
• C.Infrared interference
• D.Interference from non-Wi-Fi devices

Which statements about roaming are TRUE? (Multiple Choice)

• A.The APs used to implement WLAN roaming must be of the same model.
• B.In both Layer 2 and Layer 3 roaming, STAs' IP addresses remain unchanged.
• C.STA roaming indicates the process in which STAs switch from one AP to another.
• D.When an AC receives an association/re-association request, it determines that the STA roams if an entry about the STA already exists.

When the engineer adjusted the directional antenna, it was found that when the antenna was placed away from the other antenna, the signal would drop and the signal would increase slightly. What caused the increase of this signal?

• A.Frequency harmonics
• B.Side lobes
• C.Signal reflection
• D.Sideband

Which are the correct procedures for a Mesh node going online through an AC? (Multiple Choice)

• A.1. An AP connects to an online Mesh neighbor through air interfaces.
  2. The AP and neighbor negotiate the key, and then set up a Mesh route.
  3. The AP obtains an IP address through DHCP.
  4. The AP discovers the AC and goes online.
• B.1. An AP connects to an online Mesh neighbor through air interfaces.
  2. The AP and neighbor set up a Mesh route, and then negotiate the key.
  3. The AP obtains an IP address through DHCP.
  4. The AP discovers the AC and goes online.
• C.1. An AP connects to an online Mesh neighbor through air interfaces.
  2. The AP and neighbor negotiate the key.
  3. The AP obtains an IP address through DHCP.
  4. The AP and neighbor set up a Mesh route.
  5. The AP discovers the AC and goes online.
• D.1. Once the AP is powered on, it goes online and obtains configurations from the AC.
  2. The AP performs link establishment and key negotiation according to the obtained configurations.