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Designing Cisco Enterprise Wireless Networks (ENWLSD) Questions and Answers

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Viewing page 6 out of 9 pages

Viewing questions 51-60 out of questions

Questions # 51:

What is the primary purpose of a validation survey?

Options:

To predict AP placement before installation

To confirm that the deployed WLAN meets design requirements

To simulate wireless performance using CAD drawings

To test AP throughput in a lab environment

Answer

Questions # 52:

An engineer is setting up the WLC to support a high-density design for a lecture hall. The engineer must modify the existing high-density RF protocol to obtain a smaller cell size. Also, the clients must connect to the nearest AP using the highest possible data rates. Which setting allows this design?

Options:

AP load balance

client distribution

power threshold

RX-SOP threshold

Answer

Explanation

Adjusting the RX-SOP (Receiver Start of Packet Detection Threshold) can help to control cell size by making APs less sensitive to low-level signals, thus requiring clients to be closer to the AP to connect, which can ensure they connect to the nearest AP with the highest data rates.

Questions # 53:

A high-density wireless network is designed. Which Cisco WLC configuration setting must be incorporated in the design to encourage clients to use the 5 GHz spectrum?

Options:

RRM

Cisco centralized key management

Band select

Load balancing

Answer

Explanation

Band Select is a feature on Cisco WLCs that encourages dual-band capable clients to connect to the less congested 5 GHz spectrum. It works by delaying the response to clients’ probes on the 2.4 GHz band, making the 5 GHz band more attractive to the client devices.

Questions # 54:

A customer has this wireless design:

• two Cisco Catalyst 9800 Series wireless controllers that are configured in a high-availability SSO cluster to manage the APs in a local office network

• 100 APs in local mode that are registered to the high-availability cluster

• one Catalyst 9800 Series wireless controller that is deployed as an anchor in a DMZ

• a CAPWAP tunnel in UP state between the high-availability cluster and the anchor WLC

The customer wants the anchored traffic to remain up if a single WLC in the high-availability cluster fails. How must this requirement be incorporated into the design?

Options:

Configure the APs with the high-availability cluster as the primary base.

Deploy EMC APs as anchors and configure a high-availability cluster.

Create a separate EoIP tunnel for each WLC in the high-availability cluster.

Configure the mobility MAC address for the high-availability cluster.

Answer

Explanation

To ensure the anchored traffic remains up if a single WLC in the high-availability cluster fails, the mobility MAC address for the high-availability cluster should be configured. This allows the APs to recognize the cluster as a single entity, maintaining the CAPWAP tunnel to the anchor WLC in the DMZ even if one of the WLCs in the cluster fails.

Questions # 55:

An engineer must create a multicampus architecture wireless design to accommodate 4500 access points for wireless data Which model controller the requirements to support all access points on one high availability controller setup?

Options:

3504

5508

5520

8540

Answer

Explanation

The Cisco 8540 Wireless Controller is designed for large enterprise and high-density environments. It has the capacity to manage up to 6000 access points, making it suitable for a multicampus architecture that needs to accommodate 4500 access points. Its high availability features ensure that all access points can be supported on one controller setup with minimal downtime.

Questions # 56:

Which feature must be incorporated into the network design to allow seamless Layer 3 roaming between controllers?

Options:

Same VLANs across controllers

Mobility groups

Client load balancing

Link aggregation

Answer

Questions # 57:

Which Cisco technology improves the signal quality for clients at the edge of a cell by

optimizing beamforming?

Options:

CleanAir

ClientLink

FastLane

FlexConnect

Answer

Questions # 58:

An engineer has deployed a group of APs in an auditorium and notices that the APs are showing high cochannel interference. Which profile can be used to adjust the parameters for these high-density APs?

Options:

QoS profile

AVC profile

RF profile

ISE profile

Answer

Explanation

In a high-density environment like an auditorium, where APs are in close proximity and a large number of devices are connected, the RF profile is used to adjust the radio frequencies of the APs to minimize co-channel interference. The RF profile allows for the configuration of power levels, channel width, and channel assignment to optimize wireless performance and reduce interference. References: CCNP Enterprise Wireless Design ENWLSD 300-425 and Implementation ENWLSI 300-430 Official Cert Guide Premium Edition and Practice

Questions # 59:

The wireless survey report shows APs staggered throughout a facility, with several of them placed on the exterior walls. Other APs are located at building corners and major turns in the structure layout. Assuming that all survey locations are optimized with a minimum of -67 RSSI at

cell edges with 20% overlapping cells, for which purpose is this survey model used?

Options:

location services, VoIP, data, and video

streaming video with VoIP, data, and HD resolution

location-based services, BYOD preparation, and HD video streaming

voice, data clients, and video on demand

Answer

Explanation

The survey model described is used for location services, VoIP, data, and video. The placement of APs on exterior walls, building corners, and major turns helps ensure consistent coverage and signal strength for a variety of applications, including precise location tracking and high-quality voice and video communications. References: Designing Cisco Enterprise Wireless Networks (ENWLSD 300-425)

Questions # 60:

Which frequency band provides the widest channel availability for enterprise WLANs?