CCIE CCIE Enterprise Wireless 2 — Questions and Answers
Question 1: Which authentication framework is used in WPA3-Enterprise for improved security over WPA2-Enterprise?
- PEAP-MSCHAPv2
- 192-bit security suite with GCMP-256 (Correct answer)
- TKIP with EAP-TLS
- WEP with RADIUS
Correct 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.
Question 2: In Cisco Catalyst Center (DNA Center) wireless assurance, what does the Client 360 view provide?
- Real-time packet capture for wireless clients
- Complete client health, onboarding history, and connectivity issues (Correct answer)
- AP channel utilization statistics only
- RADIUS server logs
Correct 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.
Question 3: What is the purpose of 802.11r (Fast BSS Transition) in enterprise wireless?
- Faster AP boot time
- Reducing roaming latency by pre-authenticating with target APs (Correct answer)
- Improving channel bonding
- Enabling 6 GHz operation
Correct 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.
Question 4: Which Cisco wireless feature detects and classifies non-802.11 RF interference sources like microwave ovens and Bluetooth?
- RRM
- CleanAir (Correct answer)
- Hyperlocation
- Cisco CMX
Correct answer: CleanAir
Cisco CleanAir technology uses dedicated hardware in APs to detect, classify, and locate non-802.11 RF interference sources.
Question 5: In a Cisco FlexConnect deployment, what happens to client traffic when the WAN link to the WLC is down?
- All client traffic is dropped
- Clients are deauthenticated immediately
- APs switch to standalone mode and locally switch client traffic (Correct answer)
- Traffic is queued until WLC reconnects
Correct 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.
Question 6: What channel width provides the highest throughput in 802.11ac but requires the most contiguous spectrum?
- 20 MHz
- 40 MHz
- 80 MHz
- 160 MHz (Correct answer)
Correct 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.
CCIE CCIE Enterprise Wireless 2
Which authentication framework is used in WPA3-Enterprise for improved security over WPA2-Enterprise?