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| Section | Objectives |
|---|---|
| Topic 1: Troubleshooting and Validation | - Validation tools and post-deployment testing - Wireless performance troubleshooting methodologies |
| Topic 2: Cisco Wireless Architecture | - Lightweight Access Point (LAP) deployment models - Mobility groups and roaming design - Controller-based architecture (WLC) |
| Topic 3: RF Fundamentals and Design Principles | - RF behavior and propagation - Channel planning and interference mitigation - Antenna types and placement strategies |
| Topic 4: High Availability and Performance Optimization | - Load balancing and RF optimization - Redundancy design for controllers and APs |
| Topic 5: Wireless Site Survey and Requirements Analysis | - Business and technical requirements gathering - Physical environment assessment and constraints - Coverage and capacity planning |
| Topic 6: Wireless Security Design | - WPA2/WPA3 enterprise security design - 802.1X authentication and RADIUS integration - Guest access and segmentation strategies |
300-110学習準備では、多くの利点とさまざまな機能が強化され、学習がリラックスして効率的になります。クライアントは、製品を購入する前に300-110試験トレントの無料ダウンロードと試用ができ、クライアントが正常に支払いを行った直後に300-110学習教材をダウンロードできます。また、300-110ラーニングガイドの更新がある場合、システムは更新をクライアントに自動的に送信します。Ciscoしたがって、あなたは、効率的な学習と試験の良い準備を持つことができます。 300-110の最新の質問があなたにとって絶対に良い選択であると信じられています。
質問 # 57
A campus has eight controllers in a single RF group. The engineer wants deterministic control over which controller performs the RRM calculations. Which design approach should be used?
正解：B
解説：
By default, controllers in an RF group elect a leader dynamically, and that election can shift to a different controller after a reboot, upgrade, or network event - which means the engineer cannot predict which platform is running the RRM algorithms or where to look for RF group history and diagnostics. Configuring a static RF group leader pins that role to a chosen controller, giving deterministic behavior for troubleshooting, capacity planning, and change control, and ensuring the leader is a platform sized appropriately for the calculation load. Sharing a mobility group name governs client roaming context exchange and does not control RF group leadership.
Disabling RRM on the other controllers would leave their APs without dynamic channel and power management rather than delegating the calculation. The default election does consider platform capability and other factors rather than simply selecting the lowest IP address, and relying on it is precisely the non-deterministic behavior the static configuration exists to eliminate.
質問 # 58
Multiple WLCs are implemented in a high-availability configuration in a mobility group. APs are deployed with only a primary controller assigned. By default, which mobility group member controller do the orphaned APs join in the event of a failed controller?
正解：C
解説：
In a high-availability configuration with multiple WLCs in a mobility group, when APs that only have a primary controller configured become orphaned (their primary WLC fails), they will by default join the controller with the lowest percentage of associated APs per license capacity. This load-based selection mechanism ensures a balanced distribution of APs across the remaining controllers in the mobility group. The WLC with the lowest percentage of AP capacity utilized is chosen because it has the most headroom to accept additional APs without becoming overloaded. This prevents a single backup controller from becoming overwhelmed while others remain underutilized. The selection is not based on absolute number of APs (Option D), available free licenses in absolute terms (Option A), or CPU utilization (Option C) - it specifically uses the percentage of license capacity occupied, which normalizes across controllers with different total AP capacities. Reference: WLSD Study Guide - N+1 Redundancy Default Behavior, AP Orphan Failover Logic, WLC Load-Based AP Assignment.
質問 # 59
A network engineer must design a new wireless solution for a company, but the budget can only stretch to include a single Cisco 9800-40 WLC. The company requires high availability between the WLC and the core switch in the event of a cable failure. The WLC must dynamically manage port redundancy and perform load balancing between APs transparently. Which design approach must the engineer take to meet the requirements?
正解：C
解説：
Link Aggregation Group (LAG) is the correct design approach for a single Cisco 9800-40 WLC that requires high availability between the WLC and the core switch in the event of a cable failure.
LAG combines multiple physical ports on the WLC into a single logical channel, providing both redundancy (traffic automatically redistributes across remaining links when one fails) and load balancing (traffic is distributed across all active links). Importantly, LAG operates transparently to AP management -- APs see a single logical uplink regardless of which physical port their traffic traverses.
質問 # 60
A network engineer is preparing a predictive site survey for a new three-story office building before construction is complete. Which two inputs are required to produce an accurate predictive model? (Choose two.)
正解：B、C
解説：
A predictive survey builds an RF model mathematically rather than measuring live signal, so the accuracy of the output depends entirely on the accuracy of the model inputs. Scaled floor plans (Option B) are mandatory - the planning tool must know the true physical dimensions of the space to calculate free-space path loss and AP spacing. If the drawing scale is wrong, every calculated coverage cell is wrong. Wall and building material attenuation values (Option C) are the second required input, because RF propagation indoors is dominated by obstruction loss rather than free- space loss. Drywall, glass, concrete, brick, elevator shafts, and metal racking each attenuate differently, and these values must be applied to the walls drawn on the plan. Spectrum captures and association counts are impossible to collect in a building that has not been built, and AP serial numbers have no bearing on RF modeling.
質問 # 61
A university has three campus locations and the main data center. Each campus location has a Cisco Catalyst 9800-40 WLC that manages 600 APs. The data center has a Catalyst 9800-40 WLC, which serves as N+1 backup for each campus WLC. A consulting engineer must install four additional Catalyst 9800-40 WLCs to serve as high availability SSO pairs for each campus, but only two have been approved due to budget restrictions. Requirements: Data center WLC must always be available as N+1 backup, Campus1 WLC must operate with zero downtime, and in the event of multiple campus outages, the AP priority order is to support Campus3, Campus2, then Campus1. Which design approach must the consulting engineer take?
正解：C
解説：
This design scenario requires careful interpretation of the SSO pair function and AP priority semantics. The SSO requirement for Campus1 zero downtime means Campus1's WLC must be paired in an SSO relationship -- SSO provides hitless failover with no AP disassociation and no client reauthentication. The data center WLC, which must always remain available as N+1 backup for all campuses, is the logical SSO partner for Campus1 WLC. The SSO pair presents as a single logical entity, ensuring the data center WLC remains active and capable of serving as N+1 backup while simultaneously providing SSO for Campus1. The AP priority for the N+1 backup scenario defines the recovery order when the backup controller must simultaneously handle APs from multiple campuses. In Cisco WLC AP failover priority, priority 1 is Critical (highest). The stated recovery order -- Campus3 first, Campus2 second, Campus1 last -- maps to: Campus3 APs assigned priority 4 (Cisco's highest numeric value in the 4-tier system, equating to the highest service recovery priority in this context), Campus2 APs priority 2, and Campus1 APs priority 1 (lowest, recovered last). Option C correctly pairs the data center WLC with Campus1 WLC for SSO and assigns AP priorities in the correct descending recovery order.
質問 # 62
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