Reliable 300-110 training materials bring you the best 300-110 guide exam: Designing Cisco Wireless Networks

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Cisco 300-110 Exam Syllabus Topics:

Section	Weight	Objectives
Mobility Design	25%	- Roaming optimization 1. Fast Secure Roaming 2. 802.11r/k/v standards implementation - Mobility architecture models 1. Anchor and foreign controller design 2. Layer 2 and Layer 3 roaming 3. Mobility groups and domains - Guest mobility and BYOD design
WLAN High Availability and Security Design	20%	- Security architecture design 1. Wireless intrusion prevention design 2. Authentication and authorization frameworks 3. Encryption and privacy mechanisms - Management and monitoring design - High availability design 1. N+1 and N+N redundancy models 2. Controller failover and stateful switchover 3. AP redundancy and resiliency
Wireless Site Survey	25%	- RF propagation and attenuation analysis - Layer 1 site survey execution and analysis - Pre-deployment survey and validation - Design requirements collection and constraint evaluation 1. Real-time application requirements 2. AP and antenna type selection 3. Security requirements definition 4. Client density and capacity planning 5. Deployment type considerations
Wireless Infrastructure Design	30%	- Wired-wireless integration design 1. VLAN and QoS design 2. Switching infrastructure requirements 3. PoE and power planning - High-density wireless design 1. Co-channel interference mitigation 2. Channel planning and power management 3. Capacity optimization techniques - Wireless Controller architecture and deployment 1. Controller models and scalability 2. AP modes and deployment options 3. Redundancy and high availability design

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300-110 Prüfungsressourcen: Designing Cisco Wireless Networks & 300-110 Reale Fragen

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Cisco Designing Cisco Wireless Networks 300-110 Prüfungsfragen mit Lösungen (Q54-Q59):

54. Frage
A customer has a single anchor WLC named Anchor A. Anchor A is in a DMZ and provides guest access.
The customer wants to deploy an additional anchor controller named Anchor B to provide redundancy if Anchor A fails. Which design approach should be taken for the guest WLAN priority on the foreign WLC for each anchor WLC?

A. Set Anchor A to priority 3 and Anchor B to priority 3.
B. Set Anchor A to priority 1 and Anchor B to priority 3.
C. Set Anchor A to priority 1 and Anchor B to priority 1.
D. Set Anchor A to priority 3 and Anchor B to priority 1.

Antwort: B

Begründung:
In a wireless network design where anchor redundancy is required for guest access, setting different priorities for the anchor controllers ensures deterministic primary and backup behavior. Cisco anchor priority uses a lower numerical value to indicate higher preference - Priority 1 is the highest priority (most preferred) anchor, and Priority 3 is lower priority. Setting Anchor A to priority 1 (Option D) makes it the primary anchor controller - all new guest client sessions will preferentially anchor to Anchor A. Setting Anchor B to priority
3 makes it the standby anchor - guest clients will only be anchored to Anchor B when Anchor A is unavailable. This creates a clear primary/backup relationship with deterministic failover. Setting both anchors to the same priority (Options A and C) would result in load balancing between the two anchors rather than active/standby behavior. Option B incorrectly reverses the priorities, making Anchor B the primary and Anchor A the backup. Reference: WLSD Study Guide - Guest Anchor Redundancy Design, Anchor Priority Configuration, DMZ Anchor WLC Architecture.

55. Frage
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?

A. Use the spectrum analyzer to document the time, frequency, and location of the noise spikes, then correlate them with possible non-Wi-Fi interferers and adjust AP placement accordingly.
B. Use the wireless controller monitoring tools in combination with the site survey tool heatmap output to determine AP locations and capture the Layer 1 spectrum analysis for ongoing analysis.
C. Document the affected channels and locations, then attempt to adjust the channel plan to avoid the frequencies that experience the most interference during initial deployment.
D. Increase the transmit power of all APs to compensate for the signal fluctuations and re-run the survey to verify the visual line-of-sight and signal strength measurements.

Antwort: A

Begründung:
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. Simply increasing transmit power (Option A) raises the noise floor for neighboring cells and worsens co-channel interference. Using WLC monitoring tools (Option B) is insufficient because the WLC cannot detect non-802.11 energy at Layer 1. Adjusting the channel plan (Option C) without fully characterizing the interferer is premature. Only Option D follows the correct Cisco survey methodology for Layer 1 analysis, leading to actionable AP placement adjustments. Reference: WLSD Study Guide - Wireless Site Survey Methodology, Layer 1 Spectrum Analysis, Interference Identification and Mitigation.

56. Frage
A customer has multiple WLCs running in N+1 redundancy with APs load balanced between the WLCs. The customer performs AP failover testing between the WLCs and notices that some of the APs do not move back to their primary WLC after it recovers. What are two points that must be addressed in the design? (Choose two.)

A. DHCP Option 43 information is incorrect.
B. APs do not have their primary WLC information configured correctly.
C. APs do not have their secondary WLC information configured correctly.
D. APs failover priorities are set to Low.
E. AP Fallback is not enabled on one of the WLCs.

Antwort: B,E

Begründung:
In an N+1 redundancy deployment, an AP ' s ability to return to its designated primary WLC after that controller recovers depends on two distinct configuration requirements working in concert. First, the AP Fallback feature (Option C) must be enabled on the WLC. AP Fallback instructs APs to monitor the availability of their configured primary controller and automatically reconnect to it when it becomes available again, rather than remaining permanently joined to the N+1 backup controller. Without AP Fallback enabled, APs stay connected to whichever controller they most recently joined. Second, the APs must have their primary WLC information correctly configured (Option D). If an AP does not have the primary controller ' s name, IP address, or FQDN correctly set, it cannot identify when its designated primary has recovered and therefore cannot initiate a return fallback. DHCP Option 43 (Option A) is used for initial AP discovery only.
Secondary WLC configuration (Option B) addresses failover direction but not the return path. AP failover priority (Option E) controls which APs are moved first during a failover event, not whether fallback occurs.
Reference: WLSD Study Guide - N+1 Redundancy Design, AP Fallback Configuration, Controller Primary, Secondary and Tertiary Assignment.

57. Frage
An engineer is designing guest access where guest traffic from foreign controllers on the internal network must terminate in the DMZ. Which two requirements must the design satisfy? (Choose two.)

A. The foreign and anchor controllers must be in the same mobility group.
B. The guest WLAN configuration must match on the foreign and anchor controllers.
C. The anchor controller must be the RF group leader.
D. The anchor controller must be in the same Layer 2 VLAN as the foreign controller.
E. A mobility tunnel must exist between the foreign and anchor controllers.

Antwort: B,E

Begründung:
Auto-anchor guest tunneling requires that the guest WLAN be configured identically on both the foreign and anchor controllers (Option B) - the SSID, security settings, and WLAN ID must match, because the anchor applies its own policy to the tunneled session and a mismatch causes the client to be dropped or assigned incorrect policy. A mobility tunnel between the two controllers (Option D) is the transport that carries the guest traffic from the internal foreign controller to the DMZ anchor, allowing the client's data to bypass the internal network entirely and terminate on the DMZ segment. Controllers must be configured as mobility peers of each other, but they do not need to share a mobility group name for auto-anchor to function, and they explicitly do not need to be in the same Layer 2 VLAN - the whole point of the design is that the anchor sits in a separate, firewalled DMZ subnet. RF group leadership is unrelated to guest tunneling.

58. Frage
An engineer is designing a wireless solution for a corporate campus which includes two primary buildings: Research and Operations. The design must ensure seamless mobility for employees moving between buildings, support uninterrupted connectivity for real-time applications, and facilitate efficient Layer 2 and Layer 3 roaming. Each building's 9800-80 WLC manages its local APs, and the solution must support 802.11r/k/v while maintaining an effective mobility control plane. Which design approach leverages Cisco mobility group architecture to meet the requirements?

A. Add both 9800-80 WLCs in a single mobility group with no specific roles assigned, enabling peer- to-peer coordination for seamless roaming across buildings.
B. Designate the Research building's WLC as the primary controller and the Operations building's WLC as a secondary controller within a single mobility group to centralize mobility management.
C. Establish the Operations building's WLC as an anchor controller, configuring the Research building's WLC to tunnel all client traffic to it for centralized traffic management.
D. Assign each 9800-80 WLC to separate mobility groups, one for each building, to isolate traffic and mitigate the risk of overloading a single mobility group.

Antwort: A

Begründung:
Cisco's mobility group architecture enables seamless client roaming between WLCs by establishing a trusted peer relationship and shared mobility domain. When two Cisco Catalyst
9800-80 WLCs are placed in the same mobility group, they establish CAPWAP mobility tunnels enabling both Layer 2 and Layer 3 roaming with session continuity including IP address preservation. Within the same mobility group, WLCs exchange client state information, allowing
802.11r Fast BSS Transition, 802.11k neighbor reports, and 802.11v BSS Transition Management to function across controller boundaries. No specific primary or secondary roles are assigned within a mobility group -- all members are peers with equal standing for roaming purposes, which is precisely what Option D describes.

59. Frage
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