CCIE Enterprise Wireless Flashcards

Which authentication framework is used in WPA3-Enterprise for improved security over WPA2-Enterprise?

Answer: 192-bit security suite with GCMP-256

WPA3-Enterprise optionally supports a 192-bit security mode using GCMP-256 encryption and HMAC-SHA-384 for authentication.

In Cisco Catalyst Center (DNA Center) wireless assurance, what does the Client 360 view provide?

Answer: Complete client health, onboarding history, and connectivity issues

Client 360 in Cisco Catalyst Center provides a holistic view of client health including onboarding steps, connection history, and troubleshooting details.

What is the purpose of 802.11r (Fast BSS Transition) in enterprise wireless?

Answer: Reducing roaming latency by pre-authenticating with target APs

802.11r enables Fast BSS Transition by allowing clients to pre-authenticate with neighboring APs before roaming, reducing handoff delay.

Which Cisco wireless feature detects and classifies non-802.11 RF interference sources like microwave ovens and Bluetooth?

Answer: CleanAir

Cisco CleanAir technology uses dedicated hardware in APs to detect, classify, and locate non-802.11 RF interference sources.

In a Cisco FlexConnect deployment, what happens to client traffic when the WAN link to the WLC is down?

Answer: APs switch to standalone mode and locally switch client traffic

FlexConnect APs enter standalone mode when WLC connectivity is lost, locally switching traffic for pre-configured VLANs without interruption.

What channel width provides the highest throughput in 802.11ac but requires the most contiguous spectrum?

Answer: 160 MHz

160 MHz channel width provides the highest theoretical throughput in 802.11ac but requires 160 MHz of contiguous spectrum, limiting deployment options.