Free Cisco 300-425 Practice Questions 2026 | Designing Cisco Enterprise Wireless Networks (ENWLSD)

Explanation:

Why A is Correct?

Anchor Priority determines the order in which guest clients are assigned to controllers in the DMZ.

Setting the primary anchor controller’s priority to 1 ensures:

Clients connect to the primary controller first.

If the primary fails, Auto-Anchor Mobility fails over to the secondary (lower priority, e.g., 2).

This aligns with the centralized deployment model and the customer’s requirement for high availability.

Reference: Cisco Auto-Anchor Mobility Configuration.

Why Other Options Are Incorrect?

B. Secondary priority to 1: Would reverse the failover logic (clients prefer the secondary).

C/D. ECMP (Equal-Cost Multi-Path): Irrelevant—Auto-Anchor uses priority, not routing metrics.

Reference:

Cisco Guest Access Design Guide: Recommends priority-based anchor failover.

Final Note:

A is the only correct method. Options B/C/D misconfigure the failover logic. Always test failover scenarios post-deployment.

Explanation:

Why C is Correct?

The backup WLC has only 10 AP licenses, but 7 APs are set to critical priority and 5 to high priority.

During failover, critical APs take precedence, but if the backup WLC’s license limit (10) is exceeded by critical APs (7) + high-priority APs (5), some critical APs will fail to connect.

Oversubscription occurs because the backup WLC cannot support all 12 APs (7 critical + 5 high).

Reference: Cisco WLC AP Failover Priority Guide.

Why Other Options Are Incorrect?

A. High-priority oversubscription: Not the issue—critical APs take precedence.

B/D. network ap-priority: This command enables/disables priority-based failover but doesn’t resolve license oversubscription.

Key Fixes:

Increase backup WLC licenses to cover all critical + high-priority APs (≥12).

Adjust AP priorities: Reduce critical/high-priority APs to fit the 10-license limit.

Reference:

Cisco High Availability Best Practices: Recommends matching backup licenses to primary AP counts.

Final Note:

C (oversubscription) is the root cause. Options A/B/D misdiagnose the issue. Always audit licenses against failover requirements.

Explanation:

Why D is Correct?

Catalyst 9300X-48HX switches support PoE+ (30W per port) and UPoE (60W per port).

The Cisco 9166 AP requires PoE+ (30W) for full functionality (dual-band, mGig).

A stack of two 9300X-48HX switches has a total PoE budget (e.g., 1.8kW per switch).

To avoid oversubscribing the PoE budget, the engineer must:

Distribute APs evenly across both switches (half ports per switch).

Ensure the total power draw does not exceed the stack’s capacity.

Reference: Cisco 9300X PoE Budget Guide.

Why Other Options Are Incorrect?

A/B. All ports on one switch: Risks exceeding the PoE budget of a single switch.

C. All ports on both switches: Would oversubscribe power (e.g., 96 APs × 30W = 2.88kW > 3.6kW total budget).

Calculation Example:

Each 9300X-48HX provides ~1.8kW PoE.

Max APs per switch: 1800W / 30W = 60 APs (but only 48 ports exist).

Safe design: 24 APs per switch (48 total) to reserve power for other devices.

Reference:

Cisco 9166 AP Datasheet: Confirms 30W PoE+ requirement.

Final Note:

D (half ports per switch) balances power and functionality. Options A/B/C risk power failures. Always validate PoE budgets before deployment.

Explanation:

Why B and C are Correct?

B (Number of wireless devices):

Critical for capacity planning (AP density, channel allocation) to support data, voice, video, and location tracking.

Determines bandwidth requirements (e.g., 50 devices vs. 500 per branch).

C (Type of site):

Main office vs. branch offices have different coverage needs (e.g., high-density cubicles vs. warehouse shelves).

Impacts AP placement, antenna selection, and RF design.

Reference: Cisco Wireless Design Best Practices.

Why Other Options Are Incorrect?

A (Security policy for building access): Relevant for authentication (e.g., 802.1X) but not RF/network design.

D (Power sockets in IT room): Important for deployment logistics but not a network requirement.

E (Business type): Too vague—doesn’t directly impact technical design.

Key Design Considerations:

Device Count (B):

Calculate per-AP client limits (e.g., 25–30 devices per AP for voice/video).

Site Type (C):

Office: High-density APs with omnidirectional antennas.

Warehouse: Directional antennas for long-range coverage.

Reference:

CWNP Wireless Network Design Principles: Emphasizes capacity and site-specific planning.

Final Note:

B and C are the only factors directly impacting network requirements. Options A/D/E are secondary or unrelated. Always conduct a site survey to validate assumptions.

Explanation:

Why B is Correct?

MetaGeek Chanalyzer is a spectrum analysis tool that detects RF interference, including non-Wi-Fi signals like:

Jammers: Emit continuous noise across Wi-Fi bands (2.4 GHz/5 GHz) to disrupt communications.

Microwaves, Bluetooth, Zigbee, cordless phones: Also detectable but not listed in the options.

Jammers are explicitly identifiable due to their broad-spectrum noise signature.

Reference: MetaGeek Chanalyzer Documentation.

Why Other Options Are Incorrect?

A. PDAs / C. Smartphones / D. Printers: These are Wi-Fi devices (not non-Wi-Fi interferers) and appear as normal clients in Wi-Fi scans, not spectrum analysis.

How Chanalyzer Identifies Jammers:

Spectrum Graph: Shows flat, high-amplitude noise (jammers blanket frequencies).

Waterfall View: Reveals continuous interference patterns.

Reference:

CWNP Spectrum Analysis Guide: Highlights jammers as a key non-Wi-Fi interferer.

Final Note:

B (jammers) is the only non-Wi-Fi option. Options A/C/D are Wi-Fi devices. Always correlate spectrum data with Wi-Fi scans for accurate diagnosis.

Explanation:

Why B is Correct?

Aesthetic enclosures (e.g., Cisco’s InvisiMesh or custom decorative covers) are designed to blend APs into ceilings, walls, or furniture while maintaining RF performance.

This addresses the customer’s primary concern for aesthetics without compromising functionality.

Reference: Cisco Aironet Design Guides.

Why Other Options Are Incorrect?

A. Painting APs: Void warranties, block vents/LEDs, and may violate fire codes.

C. AIR-AP-BRACKET-1: Expands mounting options but doesn’t hide APs.

D. Eco-friendly cabling: Irrelevant—cabling is typically hidden; this doesn’t address visible APs.

Key Aesthetic Solutions:

Ceiling tiles with integrated AP mounts.

Custom enclosures matching décor (e.g., faux smoke detectors).

Reference:

CWNP Deployment Best Practices: Recommends enclosures for aesthetic-sensitive environments.

Final Note:

B is the only professional solution. Options A/C/D are either unsafe or ineffective. Always verify enclosure RF transparency with testing.

Explanation:

Why D is Correct?

OfficeExtend AP (OEAP) functionality requires a Plus license on the Cisco 5520 WLC (v8.3).

The Plus license enables remote AP features, including OEAP, which allows employees to securely connect to the corporate network from home/remote offices.

Reference: Cisco WLC Licensing Guide (v8.3).

Why Other Options Are Incorrect?

A. Base license: Only supports local APs, not OEAP.

B. OfficeExtend AP license: Misleading—OEAP is a feature enabled by the Plus license, not a standalone license.

C. WPlus license: Doesn’t exist—Cisco uses Base/Plus/AP Count licenses.

Key Licensing Notes:

Plus License: Also enables FlexConnect, Mobility, and Guest Anchor.

OEAP Requirements:

WLC must run v8.3 or later.

APs must be in OEAP mode (not local mode).

Reference:

Cisco 5520 WLC Datasheet: Confirms Plus license for advanced features.

Final Note:

D (Plus license) is mandatory for OEAP. Options A/B/C are invalid or incomplete. Always verify license compatibility before deployment.

Explanation:

Why B is Correct?

Optimize Roaming on the Cisco 9800 WLC proactively forces sticky clients to roam to a better AP by:

Using Client Match to steer clients based on real-time RF conditions.

Enforcing load balancing and minimum RSSI thresholds.

This directly addresses sticky clients (clients clinging to weak AP signals).

Reference: Cisco 9800 Optimize Roaming Guide.

Why Other Options Are Incorrect?

A. CHDM (Cisco High-Density Mobility): Improves scalability in dense deployments but doesn’t fix sticky clients.

C. 802.11k: Provides neighbor reports to assist roaming but doesn’t enforce it.

D. Data RSSI -90dBm: Too low—clients will stay connected to unusably weak signals.

Steps to Enable Optimize Roaming:

Navigate to Configuration > Wireless > Advanced > Optimize Roaming.

Set Minimum RSSI (e.g., -70 dBm) and Client Match.

Reference:

CWNP Sticky Client Troubleshooting: Recommends active steering for sticky clients.

Final Note:

B is the only solution that enforces roaming. Options A/C/D are passive or unrelated. Always test post-configuration client behavior

Explanation:

Why B is Correct?

AP Failover Priority must be enabled globally on the backup WLC to ensure:

Critical APs (marked as Critical/High priority) are prioritized during failover.

Non-critical APs are dropped if license limits are exceeded.

Without this, the backup WLC treats all APs equally, causing critical APs to fail registration due to oversubscription.

Reference: Cisco WLC AP Failover Priority Configuration.

Why Other Options Are Incorrect?

A/D. AP Fallback: Controls whether APs return to primary WLC post-failure—irrelevant here.

C. Failed WLC settings: Failover priority is enforced by the backup WLC, not the failed one.

Reference:

Cisco High Availability Best Practices: Requires priority on the backup WLC.

Final Note:

B is the root cause. Options A/C/D misdiagnose the issue. Always validate backup WLC settings pre-deployment.

Explanation:

Why A is Correct?

The described survey model (APs on exterior walls, corners, and turns with -67 dBm edge coverage and 20% overlap) is optimized for:

Location services: Requires uniform signal propagation for triangulation.

VoIP: Needs consistent -67 dBm RSSI and overlap for seamless roaming.

Data/Video: Balanced coverage ensures throughput for general and real-time traffic.

This design avoids coverage holes and supports diverse applications.

Reference: Cisco High-Density Wireless Design Guide.

Why Other Options Are Less Accurate?

B. HD video streaming: Requires higher RSSI (-65 dBm) and more overlap (25–30%).

C. BYOD/HD video: Overkill—BYOD doesn’t need corner APs, and HD video demands stricter thresholds.

D. Video on demand: Less critical for corner/wall APs—focuses on capacity, not edge coverage.

Key Design Metrics:

-67 dBm edge RSSI: Ideal for VoIP and location tracking.

20% overlap: Ensures roaming without packet loss.

Reference:

CWNP Voice over Wi-Fi (VoWLAN) Guidelines: Recommends -67 dBm for voice.

Final Note:

A is the most balanced use case. Options B/C/D either over-specify or misalign with the survey model. Always validate with application requirements.