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| Section | Objectives |
|---|---|
| Wireless Security Design | - 802.1X authentication and RADIUS integration - WPA2/WPA3 enterprise security design - Guest access and segmentation strategies |
| High Availability and Performance Optimization | - Redundancy design for controllers and APs - Load balancing and RF optimization |
| Wireless Site Survey and Requirements Analysis | - Physical environment assessment and constraints - Business and technical requirements gathering - Coverage and capacity planning |
| Cisco Wireless Architecture | - Mobility groups and roaming design - Controller-based architecture (WLC) - Lightweight Access Point (LAP) deployment models |
| RF Fundamentals and Design Principles | - RF behavior and propagation - Channel planning and interference mitigation - Antenna types and placement strategies |
| Troubleshooting and Validation | - Validation tools and post-deployment testing - Wireless performance troubleshooting methodologies |
The Exams4sures is one of the top-rated and reliable platforms for quick and complete 300-110exam preparation. The Exams4sures has been offering real, valid, and updated Designing Cisco Wireless Networks exam questions for many years. Over this long time period countless Cisco 300-110 Exam candidates have passed their dream Cisco 300-110 certification and doing jobs in the world's top brands.
NEW QUESTION # 65
A network engineer is designing a new wireless network. The network must include these requirements: * optimized performance * avoid interference * availability in high-density areas * roaming Which two approaches must be taken? (Choose two.)
Answer: B,D
Explanation:
The design requirements - optimized performance, interference avoidance, high-density support, and roaming capability - collectively point to a dual-band strategy using narrow channel widths. For 5 GHz operation (Option A), 20 MHz channels are the correct choice for high-density and campus-scale deployments. The 5 GHz band has significantly more non-overlapping channels compared to 2.4 GHz (up to
24 non-overlapping 20 MHz channels in UNII-1, UNII-2, and UNII-3), enabling a robust channel reuse plan with minimal co-channel interference and excellent roaming cell separation. Wider 5 GHz channels (Options C and E - 80 MHz and 40 MHz) would consume multiple channel blocks, dramatically reducing the number of available non-overlapping channels and increasing co-channel interference in dense deployments. For 2.4 GHz operation (Option B), 20 MHz channels are mandatory - there are only three non-overlapping 20 MHz channels (1, 6, 11) in the 2.4 GHz band. Using 40 MHz channels in 2.4 GHz (Option D) eliminates all non- overlapping channel separation, causing massive co-channel interference and is universally contraindicated in enterprise designs. Reference: WLSD Study Guide - Channel Planning, High-Density Design, Frequency Band Selection.
NEW QUESTION # 66
An engineer is designing the access layer to support Cisco Catalyst 9130 APs with both radios operating at full capability. Which power design must be specified for the switch ports?
Answer: C
Explanation:
Modern Wi-Fi 6 access points with multiple spatial streams, dual radios, and additional onboard functions such as BLE and integrated sensors draw more power than legacy 802.3af can supply.
When only 15.4 W is available, the AP boots in a reduced-functionality mode - typically disabling a radio, reducing spatial streams, shutting down auxiliary Ethernet ports, or lowering transmit power - which silently undermines the coverage and capacity model the survey was based on.
Specifying 802.3at (PoE+) at up to 30 W per port ensures the AP operates with all radios and features enabled as designed. The design must also confirm the switch's total power budget supports the aggregate draw of every connected AP simultaneously, not merely the per-port rating, and that redundant power supplies are sized accordingly. Cisco Inline Power predates
802.3af and is far below the requirement, and specifying power injectors everywhere adds cost, failure points, and cabling complexity that a properly sized PoE+ switch avoids.
NEW QUESTION # 67
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?
Answer: D
Explanation:
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.
NEW QUESTION # 68
An engineer must identify the network requirements for a company that has a main office and 10 branch offices. The network must be able to support data, voice, video, and location tracking. Which two factors must be considered? (Choose two.)
Answer: A,C
Explanation:
When designing a wireless network to support diverse services - including data, voice, video, and location tracking - across a distributed enterprise with a main office and 10 branch locations, the two primary design factors directly shaping the RF and capacity architecture are the number of wireless devices requiring access and the type of site where the survey will be performed. The device count (Option B) drives AP density, channel reuse planning, capacity modeling, and controller licensing requirements. Each service type - particularly VoWLAN and video - imposes strict per-client throughput and latency constraints that must be multiplied across the concurrent device population. The type of site (Option C) determines the survey approach, attenuation characteristics, coverage requirements, and antenna selection. A warehouse, hospital, or open-plan office each demands a fundamentally different RF design. Options A and D are organizational considerations, not technical RF design inputs. Option E (power sockets) is an installation logistics concern, not a wireless design factor. Reference: WLSD Study Guide - Requirements Gathering, Site Survey Planning, Capacity and Coverage Design Methodology.
NEW QUESTION # 69
During a site survey for a new wireless deployment in a multifloor office building, an engineer must identify sources of interference and ensure optimal AP placement for 5 GHz coverage.
While walking the site with a spectrum analyzer, the engineer notices periodic spikes in the noise floor on several channels and inconsistent signal strengths reported by the survey tool, despite visually unobstructed paths. Which action must the engineer take next to accurately assess and mitigate the Layer 1 interference?
Answer: D
Explanation:
Layer 1 interference analysis is foundational to the Cisco site survey methodology. When a spectrum analyzer reveals periodic noise floor spikes across multiple channels with no clear line- of-sight obstruction, the root cause is almost certainly a non-802.11 device -- candidates include cordless phones, video cameras, microwave equipment, or radar systems triggering DFS events.
The correct engineering response is systematic documentation: capture the time of occurrence, the specific frequency or frequency range, and the geographic location of the interference signature. This triangulation data enables correlation with physical devices present in the facility.
NEW QUESTION # 70
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