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| Section | Objectives |
|---|---|
| Topic 1: Wireless Network Architecture | - Cisco wireless architecture components (WLC, AP modes) - Cloud and on-prem deployment models - Centralized vs distributed design models |
| Topic 2: RF Design and Wireless Standards | - RF fundamentals (channels, bandwidth, interference) - Antenna types and placement design - 802.11 standards and amendments |
| Topic 3: Wireless Security Design | - Authentication methods (WPA2/WPA3, 802.1X) - Cisco ISE integration - Guest access design considerations |
| Topic 4: Quality of Service and Performance Design | - QoS classification and marking - Voice and video optimization over wireless |
| Topic 5: Wireless Troubleshooting and Optimization | - Common RF and client connectivity issues - Performance monitoring and tuning |
| Topic 6: Mobility and Roaming Design | - Fast secure roaming (802.11r, OKC) - Layer 2 and Layer 3 roaming |
| Topic 7: Wireless Site Survey & Design Methodologies | - Requirements gathering and design considerations - Coverage and capacity planning - Site survey types and tools |
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NEW QUESTION # 269
Refer to the exhibit. An enterprise is using wireless as the main network connectivity for clients.
To ensure service continuity, a pair of controllers will be installed in a datacenter.
An engineer is designing SSO on the pair of controllers.
What needs to be included m the design to avoid having the secondary controller go into maintenance mode?
Answer: B
Explanation:
https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-
1/HA_SSO_DG/High_Availability_DG.html#pgfId-105076
After the WLCs are configured with Redundancy Management and Peer Redundancy Management IP Address and Redundant Units are configured, it is time to enable SSO. It is important to make sure that physical connections are up between both the controllers (that is, both the WLCs are connected back to back via Redundant Port using an Ethernet cable) and the uplink is also connected to the infrastructure switch and the gateway is reachable from both the WLCs before SSO is enabled.
Once SSO is enabled, it will reboot the WLCs. While it boots, the WLCs negotiate the HA role as per the configuration via Redundant Port. If the WLCs cannot reach each other via the Redundant Port or via the Redundant Management Interface, the WLC configured as Secondary may go in Maintenance Mode. Maintenance Mode is discussed later in this document.
NEW QUESTION # 270
An engineer in a branch office that does not have a wired backhaul must ensure that local clients can be switched locally and authenticated centrally. In which mode must the AP be configured?
Answer: B
Explanation:
Cisco FlexConnect mode is designed for branch offices that lack a wired backhaul. It allows APs to switch client data traffic locally while still performing client authentication centrally. This mode provides the flexibility needed for branch deployments, ensuring that client traffic is handled efficiently even if the WAN link to the central site is down. Reference: Cisco FlexConnect technical documentation and Designing Cisco Enterprise Wireless Networks (ENWLSD) training.
NEW QUESTION # 271
Which non-Wi-Fi interferer can be identified by Metageek Chanalyzer?
Answer: C
Explanation:
https://www.metageek.com/training/resources/wifi-and-non-wifi-interference
NEW QUESTION # 272
A network consultant must create a wireless design with these characteristics:
* Provide coverage in a single contiguous space.
* Support dual-band wireless coverage.
* Use nine APs for full coverage in a 5 GHz band.
What must the engineer do to mitigate co-channel interference and maintain coverage in 2.4 GHz?
Answer: B
Explanation:
In a high-density environment where 5 GHz coverage is provided by nine APs, disabling the 2.4 GHz radios on some APs can reduce co-channel interference because the 2.4 GHz band has fewer non-overlapping channels. This approach helps maintain coverage while mitigating interference.
NEW QUESTION # 273
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?
Answer: C
Explanation:
Link Aggregation Group (LAG) allows multiple physical ports to be combined into a single logical channel.
In the scenario where only one Cisco 9800-40 WLC is available and high availability is required, LAG can be used to manage port redundancy and perform load balancing between APs transparently. This ensures that if one cable fails, the others can continue to carry the traffic without any perceived downtime
NEW QUESTION # 274
......
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