1. Which wireless topology mode is used by two devices to connect in a peer-to-peer network?
- Ad hoc
- Infrastructure
- Tethering
Explanation: Ad hoc mode is used when two devices connect wirelessly in a peer-to-peer (P2P) manner without using APs or wireless routers.
2. True or False: An ESS is created when two or more BSSs need to be joined to support roaming clients.
- True
- False
Explanation: The correct answer is True: When two or more BSSs need to support roaming clients, they can be joined together to create an ESS.
3. How many address fields are in the 802.11 wireless frame?
- 2
- 3
- 4
- 5
Explanation: An 802.11 wireless frame has four address fields.
4. What is the term for an AP that openly advertises its service periodically?
- Active
- Infrastructure
- Ad hoc
- Passive
Explanation: In passive mode, the AP openly advertises its service by periodically sending broadcast beacon frames containing the SSID, supported standards, and security settings.
5. What is the term for an AP that does not send a beacon, but waits for clients to send probes?
- Active
- Infrastructure
- Ad hoc
- Passive
Explanation: In active mode, wireless clients initiate the process by broadcasting a probe request frame with the SSID on multiple channels. APs configured with the SSID will send a probe response that includes the SSID, supported standards, and security settings.