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Cisco 300-110 Exam Syllabus Topics:

SectionWeightObjectives
Mobility Design25%- Mobility architecture models
  • 1. Layer 2 and Layer 3 roaming
    • 2. Anchor and foreign controller design
      • 3. Mobility groups and domains
        - Roaming optimization
        • 1. 802.11r/k/v standards implementation
          • 2. Fast Secure Roaming
            - Guest mobility and BYOD design
            Wireless Infrastructure Design30%- Wired-wireless integration design
            • 1. PoE and power planning
              • 2. Switching infrastructure requirements
                • 3. VLAN and QoS design
                  - Wireless Controller architecture and deployment
                  • 1. AP modes and deployment options
                    • 2. Redundancy and high availability design
                      • 3. Controller models and scalability
                        - High-density wireless design
                        • 1. Channel planning and power management
                          • 2. Co-channel interference mitigation
                            • 3. Capacity optimization techniques
                              WLAN High Availability and Security Design20%- Management and monitoring design
                              - Security architecture design
                              • 1. Encryption and privacy mechanisms
                                • 2. Wireless intrusion prevention design
                                  • 3. Authentication and authorization frameworks
                                    - High availability design
                                    • 1. N+1 and N+N redundancy models
                                      • 2. AP redundancy and resiliency
                                        • 3. Controller failover and stateful switchover
                                          Wireless Site Survey25%- Pre-deployment survey and validation
                                          - Design requirements collection and constraint evaluation
                                          • 1. AP and antenna type selection
                                            • 2. Deployment type considerations
                                              • 3. Client density and capacity planning
                                                • 4. Real-time application requirements
                                                  • 5. Security requirements definition
                                                    - Layer 1 site survey execution and analysis
                                                    - RF propagation and attenuation analysis

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                                                    Cisco Designing Cisco Wireless Networks Sample Questions (Q124-Q129):

                                                    NEW QUESTION # 124
                                                    During a validation survey of a newly deployed WLAN, the engineer measures -70 dBm at the cell edge on a data-only WLAN, but the noise floor is -78 dBm. Which conclusion should the engineer reach?

                                                    Answer: B

                                                    Explanation:
                                                    Signal strength alone is an incomplete measure of coverage quality - what determines whether a client can demodulate a frame is how far the signal rises above the surrounding noise. Here the received signal is -70 dBm and the noise floor is -78 dBm, giving a signal-to-noise ratio of only 8 dB. A data WLAN requires a minimum SNR of approximately 20 dB, and voice requires 25 dB, so this location fails validation despite an RSSI value that would otherwise appear acceptable. An elevated noise floor of -78 dBm also points to a non-Wi-Fi interference source or excessive co- channel activity that spectrum analysis should identify, since a clean environment typically sits closer to -90 dBm. The remediation is to address the noise source or increase signal strength through AP placement, not to accept the reading because one of the two metrics passes.
                                                    Requiring -60 dBm across all WLANs is far stricter than any Cisco design guidance and would produce an unnecessarily dense and expensive deployment.


                                                    NEW QUESTION # 125
                                                    A network design supports data and voice in 2.4 GHz and 5.0 GHz. The design must support asset tracking without affecting the existing design. Which action must be taken?

                                                    Answer: B

                                                    Explanation:
                                                    Cisco's WLAN location and asset tracking architecture (based on Cisco Spaces or legacy Cisco MSE/CMX) relies on the ability to receive and measure the RF signal from tagged assets at multiple APs simultaneously. For accurate location determination using triangulation or trilateration algorithms, a minimum of three APs must receive the tag's signal with sufficient RSSI.
                                                    Monitor mode APs are dedicated to passive RF listening -- they do not transmit client-serving SSIDs and focus their full radio attention on scanning all channels for signal measurement.
                                                    Placing monitor mode APs specifically on the perimeter of an asset tracking area provides the spatial diversity and boundary detection capability needed to accurately triangulate assets throughout the interior, without requiring any modifications to the existing data/voice serving APs.
                                                    Adding monitor mode APs at the perimeter as an overlay ensures the existing 2.4 GHz and 5 GHz voice/data design is entirely undisturbed.


                                                    NEW QUESTION # 126
                                                    A customer has a centralized wireless deployment with N+1 high availability and few open authentication SSIDs configured. After failover, all APs are broadcasting all SSIDs, but the clients are assigned IP addresses from a different subnet. The WLANs on both WLCs are configured with the same dynamic interfaces. Which feature must be incorporated in the wireless design of the second controller?

                                                    Answer: A

                                                    Explanation:
                                                    VLAN Select is a feature that allows for the dynamic assignment of clients to different VLANs from a pool based on various criteria, such as load balancing or location. In a centralized wireless deployment with N+1 high availability, if clients are receiving IP addresses from a different subnet after failover despite the WLANs being configured with the same dynamic interfaces, the issue is that the second controller's WLAN interface mapping resolves to a different VLAN or DHCP scope. VLAN Select ensures that client VLAN assignment is consistent regardless of which controller the client connects to, preventing the subnet change behavior observed during failover.
                                                    Without VLAN Select, even identically named dynamic interfaces on two WLCs may map to different VLANs if the underlying switch configuration differs.


                                                    NEW QUESTION # 127
                                                    A customer has a Cisco wireless network that supports VoWLAN services. The customer wants supported voice clients to receive roaming recommendations and suggestions from APs. This functionality must not impact non-VoWLAN clients. What should be enabled on the VoWLAN SSID?

                                                    Answer: A

                                                    Explanation:
                                                    IEEE 802.11v BSS Transition Management is the standard that enables the network (via the AP) to actively provide roaming recommendations and suggestions to associated clients. When enabled on a SSID, the AP can send BSS Transition Management Request frames to clients, informing them of preferred target APs ranked by signal quality, load, and channel conditions.
                                                    Critically, BSS Transition Management is a voluntary mechanism -- clients that support 802.11v can act on the AP's recommendation, while clients that do not support 802.11v simply ignore the BSS Transition Request frames and continue operating normally. This selective applicability directly satisfies the requirement that non-VoWLAN clients must not be impacted.


                                                    NEW QUESTION # 128
                                                    In an N+1 design, a customer needs certain APs in the emergency department to rejoin the backup controller before all other APs when a failover occurs. Which feature must the engineer include in the design?

                                                    Answer: C

                                                    Explanation:
                                                    AP failover priority allows an engineer to assign each AP a priority level of low, medium, high, or critical. When a backup controller in an N+1 design receives more join requests than its licensed AP capacity allows, it uses these priority values to decide which APs to accept. If the controller is already at capacity and a higher-priority AP requests to join, the controller disassociates a lower- priority AP to make room for it. This makes AP failover priority the correct design element when specific coverage areas - such as an emergency department, operating theater, or warehouse safety zone - must be guaranteed service during a controller outage. AP fallback is a different feature that returns an AP to its primary controller once that controller comes back online, and it does not influence which APs are admitted during the failure. Mobility group priority and join profile weighting are not the mechanisms that govern controller admission during failover.


                                                    NEW QUESTION # 129
                                                    ......

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