View Full Cisco CCNP Wireless 350-101 Exam Dumps and Practice Test Dumps

 

Question 61: Which Cisco wireless architecture allows an access point to continue providing locally switched WLAN services when its connection to the controller is temporarily unavailable?

1. Monitor mode
2. FlexConnect
3. Sniffer mode
4. Local mode

Correct Answer: 2. FlexConnect

Explanation:
FlexConnect is designed for remote-site deployments where an access point can provide locally switched client traffic and, depending on the configured features and deployment, continue selected WLAN services during a temporary loss of controller connectivity. This makes FlexConnect useful for branch offices where maintaining local connectivity is important even when the WAN connection to a centralized controller is interrupted. Monitor and sniffer modes are specialized monitoring configurations, while local mode normally relies more heavily on controller connectivity for centralized operation. FlexConnect therefore provides the architecture most closely associated with resilient branch WLAN operation and local traffic switching.

Question 62: Which Cisco wireless component maintains the centralized configuration and operational state of lightweight access points?

1. Wireless LAN controller
2. DHCP server
3. DNS server
4. RADIUS client

Correct Answer: 1. Wireless LAN controller

Explanation:
A wireless LAN controller provides centralized management and configuration for lightweight Cisco access points. It can maintain WLAN definitions, security policies, RF settings, AP operational information, and other centralized wireless configuration. The AP communicates with the controller using CAPWAP to receive configuration and management information. DHCP primarily provides IP addressing, DNS provides name resolution, and RADIUS provides authentication services when integrated with an enterprise WLAN. Therefore, the wireless LAN controller is the component responsible for centralized AP configuration and operational management.

Question 63: Which CAPWAP transport protocol is used by Cisco lightweight access points for control and data communication with a controller?

1. TCP
2. SCTP
3. UDP
4. ICMP

Correct Answer: 3. UDP

Explanation:
CAPWAP uses UDP as its underlying transport mechanism for communication between lightweight access points and wireless LAN controllers. CAPWAP uses separate transport ports for its control and data functions. The use of UDP allows the protocol to support the required wireless infrastructure communication without relying on TCP’s connection-oriented transport behavior. TCP is used by many other network applications, SCTP provides transport capabilities for specific protocols, and ICMP is primarily used for network control and diagnostic messaging. Therefore, UDP is the transport protocol associated with CAPWAP communication.

Question 64: Which Cisco wireless feature allows an administrator to apply a common set of RF parameters to a group of access points?

1. WLAN Profile
2. RF Profile
3. AAA Profile
4. Mobility Group

Correct Answer: 2. RF Profile

Explanation:
An RF Profile allows administrators to define and apply a common set of radio-related parameters to selected access points. Depending on the controller platform, these settings can include channel width, transmit-power limits, data-rate behavior, and other RF characteristics. Using profiles simplifies administration because similar AP deployment areas can receive consistent RF policies without configuring every radio individually. WLAN Profiles define wireless network characteristics, AAA Profiles relate to authentication and authorization, and Mobility Groups establish controller mobility relationships. RF Profile is therefore the configuration object most directly associated with applying common radio settings to APs.

Question 65: Which Cisco wireless feature can group access points for coordinated RF management and RRM operations?

1. RF Group
2. AP Group
3. WLAN Group
4. Security Group

Correct Answer: 1. RF Group

Explanation:
An RF Group allows Cisco wireless infrastructure to logically group access points and coordinate RF management functions. RRM can use information gathered from participating APs to make decisions about channel assignments, transmit power, and other radio parameters. This allows the wireless system to consider neighboring RF conditions rather than treating every AP as an isolated radio. An AP Group is primarily used to control WLAN availability across APs, while WLAN and Security Group are not equivalent RRM constructs. Therefore, RF Group is the feature associated with coordinated RF management.

Question 66: Which wireless design approach is most appropriate for a high-density conference room with many simultaneously active clients?

1. Use a small number of APs with maximum transmit power
2. Use appropriate AP density and carefully planned channels
3. Use only 2.4 GHz with maximum channel width
4. Disable 5 GHz to reduce complexity

Correct Answer: 2. Use appropriate AP density and carefully planned channels

Explanation:
High-density WLAN environments require careful capacity planning rather than simply maximizing coverage from a small number of access points. Additional appropriately positioned APs can provide more available airtime and improve client capacity, while careful channel reuse reduces excessive contention. Transmit power should be designed appropriately instead of automatically being set to maximum. The 5-GHz band generally provides more channel options than 2.4 GHz, making it valuable for high-density deployments. Therefore, a combination of appropriate AP density, channel planning, and RF tuning is the correct design approach for a conference room with many active clients.

Question 67: Which factor can significantly reduce wireless throughput even when a client has adequate signal strength?

1. High channel utilization
2. Correct DNS resolution
3. Long DHCP lease
4. Large IP address pool

Correct Answer: 1. High channel utilization

Explanation:
High channel utilization indicates that a significant portion of the available RF airtime is already occupied. Even when a client has good signal strength, heavy utilization can reduce the amount of airtime available for its transmissions and increase contention and delays. This can result in lower effective throughput and increased latency. DNS resolution, DHCP lease duration, and IP address pool size do not directly determine RF airtime availability. Wireless performance must therefore be evaluated using both signal quality and capacity-related measurements such as channel utilization.

Question 68: Which 802.11 mechanism allows a client to request that an AP buffer multicast and broadcast traffic while the client is in a power-saving state?

1. DTIM
2. RTS
3. DFS
4. SNR

Correct Answer: 1. DTIM

Explanation:
The Delivery Traffic Indication Message, or DTIM, is associated with beacon frames and informs power-saving wireless clients about buffered broadcast and multicast traffic. Clients that enter a power-saving state can use DTIM information to determine when they should wake and receive buffered traffic. This helps balance battery conservation with timely delivery of broadcast and multicast data. RTS is associated with medium-access coordination, DFS handles radar detection in applicable spectrum, and SNR measures RF signal quality. DTIM is therefore the mechanism most directly related to delivery of buffered broadcast and multicast traffic to sleeping wireless clients.

Question 69: Which Cisco wireless capability provides centralized authentication, authorization, and accounting functions for wireless clients?

1. AAA
2. RRM
3. CAPWAP
4. PoE

Correct Answer: 1. AAA

Explanation:
AAA stands for Authentication, Authorization, and Accounting and provides the framework for controlling user access to network resources. In enterprise WLANs, AAA commonly integrates with a RADIUS server to authenticate users or devices, apply authorization policies, and optionally maintain accounting information. RRM manages RF resources, CAPWAP provides AP-to-controller communication, and PoE supplies electrical power to supported devices. AAA is therefore the capability associated with centralized identity and access-control functions in an enterprise wireless deployment.

Question 70: Which EAP method establishes a protected TLS tunnel before transmitting the user’s inner authentication credentials?

1. EAP-MD5
2. PEAP
3. Open System
4. EAP-TLS

Correct Answer: 2. PEAP

Explanation:
Protected Extensible Authentication Protocol, or PEAP, establishes a TLS-protected tunnel between the wireless client and authentication server before performing the inner authentication exchange. This protects the inner credentials from being transmitted directly over the unprotected network. PEAP is commonly deployed with an inner authentication method such as EAP-MSCHAPv2. EAP-TLS also uses TLS but relies on certificates for strong client and server authentication rather than the same tunneled credential model. EAP-MD5 does not provide equivalent tunnel protection, and Open System authentication provides no comparable enterprise authentication framework. PEAP is therefore the method described.

Question 71: Which EAP method provides certificate-based authentication without requiring a password as the primary client credential?

1. EAP-TLS
2. EAP-MD5
3. PEAP-MSCHAPv2
4. LEAP

Correct Answer: 1. EAP-TLS

Explanation:
EAP-TLS uses digital certificates to authenticate the client and authentication server. A properly deployed EAP-TLS environment can authenticate devices or users without relying on a traditional password as the primary authentication credential. This makes certificate-based authentication particularly useful for enterprise environments that require strong identity assurance. EAP-MD5 is an older password-based mechanism with significant limitations, PEAP-MSCHAPv2 generally uses password-based inner authentication, and LEAP is an older Cisco-proprietary method. EAP-TLS is therefore the EAP method most directly associated with certificate-based mutual authentication.

Question 72: What is the primary purpose of Cisco CleanAir technology?

1. Detect and mitigate non-Wi-Fi RF interference
2. Assign IP addresses to wireless clients
3. Authenticate wireless users
4. Establish CAPWAP tunnels

Correct Answer: 1. Detect and mitigate non-Wi-Fi RF interference

Explanation:
Cisco CleanAir is designed to identify, classify, and help mitigate sources of non-Wi-Fi radio-frequency interference. By analyzing the RF environment, CleanAir-enabled infrastructure can distinguish certain interfering devices and provide information that assists administrators with troubleshooting and RF optimization. This is different from basic Wi-Fi client traffic analysis because non-Wi-Fi interferers may not participate in the 802.11 protocol. DHCP provides IP addressing, AAA handles authentication, and CAPWAP provides AP-controller communication. CleanAir is therefore specifically associated with RF interference detection and analysis.

Question 73: Which Cisco wireless feature provides visibility into non-Wi-Fi devices that may be disrupting WLAN performance?

1. CleanAir
2. DHCP
3. AAA
4. FlexConnect

Correct Answer: 1. CleanAir

Explanation:
CleanAir provides specialized RF intelligence that can identify and classify certain sources of non-Wi-Fi interference. Examples can include devices or RF emitters that occupy spectrum without participating in normal 802.11 communication. Identifying such interference can help administrators distinguish a wireless protocol problem from an external RF problem. DHCP provides network configuration, AAA handles authentication and authorization, and FlexConnect provides a remote AP deployment architecture. CleanAir is therefore the Cisco technology most directly associated with visibility into non-Wi-Fi interference.

Question 74: Which wireless measurement is most useful for identifying whether an RF environment contains significant background noise?

1. Noise floor
2. BSSID
3. SSID length
4. VLAN ID

Correct Answer: 1. Noise floor

Explanation:
The noise floor represents the level of background RF energy present in the environment. A high noise floor can reduce the effective SNR even when the desired wireless signal is reasonably strong. This can result in retransmissions, lower data rates, and degraded client performance. BSSID identifies a wireless network instance, SSID is the WLAN name, and VLAN ID identifies a wired Layer 2 segment. Therefore, the noise floor is the RF measurement most directly associated with determining the amount of background radio-frequency energy affecting wireless communication.

Question 75: Which Cisco wireless capability can automatically change an AP’s channel when excessive interference or neighboring RF activity is detected?

1. RRM
2. AAA
3. DHCP
4. CAPWAP Discovery

Correct Answer: 1. RRM

Explanation:
Radio Resource Management can dynamically evaluate RF conditions and modify radio parameters such as channel assignments when the wireless environment changes. By considering information gathered from neighboring access points and RF measurements, RRM can help select channels that provide better operating conditions. This automation is particularly useful in enterprise environments where RF conditions can change because of client density, neighboring WLANs, interference, or physical changes. AAA handles identity and access control, DHCP provides IP configuration, and CAPWAP discovery helps APs locate controllers. RRM is therefore responsible for automated RF channel optimization.

Question 76: Which wireless mobility technology allows clients to move between access points associated with different controllers while maintaining connectivity?

1. Controller mobility
2. DHCP relay
3. RF Profile
4. PoE

Correct Answer: 1. Controller mobility

Explanation:
Cisco controller mobility capabilities allow wireless clients to roam between access points that may be managed by different wireless LAN controllers while maintaining network connectivity. Mobility relationships between controllers allow the infrastructure to exchange information required to support roaming and client state. This is particularly important in larger WLAN deployments where multiple controllers are required for scale, geographic distribution, or redundancy. DHCP relay, RF Profiles, and PoE address different networking functions. Controller mobility is therefore the technology associated with maintaining client connectivity across controller boundaries during roaming.

Question 77: Which WLAN design characteristic is most important when supporting voice over Wi-Fi?

1. Predictable RF coverage and low latency
2. Maximum beacon interval
3. Exclusive use of 2.4 GHz
4. Disabling QoS

Correct Answer: 1. Predictable RF coverage and low latency

Explanation:
Voice over Wi-Fi requires consistent RF coverage, low latency, low packet loss, and controlled jitter to maintain acceptable call quality. Proper cell design and sufficient signal quality help ensure that voice clients can maintain reliable connections while roaming. Quality of Service mechanisms can also prioritize voice traffic and protect it from congestion. Increasing the beacon interval or disabling QoS does not improve voice performance, and restricting the deployment to 2.4 GHz can unnecessarily limit available capacity. Predictable RF coverage combined with appropriate latency and QoS characteristics is therefore essential for enterprise voice WLANs.

Question 78: Which QoS marking is commonly associated with voice traffic that requires expedited forwarding through a network?

1. DSCP EF
2. DSCP CS1
3. DSCP AF11
4. DSCP BE

Correct Answer: 1. DSCP EF

Explanation:
Expedited Forwarding, or DSCP EF, is commonly associated with real-time voice traffic that requires low delay, low jitter, and low packet loss. Network devices can use QoS policies to give appropriately marked voice traffic preferential treatment during congestion. Other DSCP classes serve different traffic requirements, while Best Effort traffic does not receive the same priority treatment. Proper end-to-end QoS design is important because wireless access alone cannot guarantee voice quality if congestion occurs elsewhere in the network. DSCP EF is therefore the marking commonly associated with latency-sensitive voice traffic.

Question 79: Which wireless design factor directly affects the number of clients that can be supported effectively in a given area?

1. Capacity and airtime availability
2. DNS suffix length
3. NTP polling interval only
4. Number of unused IP addresses

Correct Answer: 1. Capacity and airtime availability

Explanation:
Wireless capacity is strongly influenced by available airtime, client traffic patterns, channel width, RF conditions, spatial reuse, and the number and placement of access points. Unlike a wired switch port, a wireless channel is a shared medium, so increasing the number of clients increases contention for available airtime. A high-density design therefore focuses on capacity rather than simply ensuring that every client can detect an AP. DNS suffixes, NTP polling intervals, and unused IP addresses do not directly determine RF capacity. Airtime availability and appropriate capacity planning are therefore critical when estimating the number of clients a WLAN can effectively support.

Question 80: Which Cisco wireless troubleshooting approach is most appropriate when users report intermittent connectivity in only one physical area of a building?

1. Examine RF measurements and perform a site survey of the affected area
2. Replace the DNS server immediately
3. Increase all AP transmit power to maximum
4. Disable all WLAN security

Correct Answer: 1. Examine RF measurements and perform a site survey of the affected area

Explanation:
When intermittent connectivity is isolated to a specific physical area, RF conditions should be investigated before making broad network changes. A site survey and wireless troubleshooting tools can reveal weak signal levels, excessive noise, co-channel interference, adjacent-channel interference, coverage holes, or other localized RF problems. Increasing every AP to maximum power can create additional interference and is not a controlled troubleshooting method. DNS and WLAN security are unlikely to be the root cause of a geographically localized RF problem. Therefore, examining RF measurements and performing a targeted site survey is the appropriate troubleshooting approach.