CCST Wireless Networking & Standards Flashcards

What technology does 802.11ax use to allow multiple clients to transmit and receive simultaneously, improving efficiency in dense environments?

Answer: OFDMA

OFDMA (Orthogonal Frequency Division Multiple Access) in Wi-Fi 6 allows simultaneous communication with multiple clients by dividing channels into sub-carriers.

A wireless client is experiencing weak signal and slow speeds. Which tool in Cisco's arsenal helps you identify channel utilization and neighboring APs?

Answer: Cisco Prime Infrastructure

Cisco Prime Infrastructure provides wireless RF heatmaps, channel utilization data, and neighboring AP visibility to assist in diagnosing wireless issues.

Which wireless mode allows an access point to connect to a wired network and provide wireless connectivity to clients?

Answer: Infrastructure mode

In infrastructure mode, a wireless access point connects to a wired network and serves as a central hub for wireless client devices.

What is the function of BSS (Basic Service Set) in wireless networking?

Answer: It refers to a single access point and all clients associated with it

A BSS (Basic Service Set) consists of a single access point and all the wireless client devices that are associated with it.

Which wireless roaming standard allows a client to pre-authenticate to a nearby AP before disconnecting from the current one, reducing handoff time?

Answer: 802.11r

802.11r (Fast BSS Transition) enables a wireless client to pre-authenticate to a target AP while still connected to the current AP, minimizing roaming delay.

A Cisco lightweight access point (LAP) requires which component to function in a centralized wireless deployment?

Answer: A Wireless LAN Controller (WLC)

Lightweight APs (LAPs) offload most intelligence to a Wireless LAN Controller (WLC) and use the CAPWAP protocol to communicate with it.