[Free] 2017(Nov) Dumps4cert Pass4sure Cisco 300-360 Dumps with VCE and PDF 11-20

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Designing Cisco Wireless Enterprise Networks

Question No: 11

An engineer installed a 3702 AP and is getting power from the switch. What is the reason for getting 3×3 MIMO instead of 4×4?

A. 802.1p B. 802.3af C. 802.11e D. 802.3at

Answer: B

Question No: 12

An engineer is determining the signal levels for the wireless cells. Which signal-to-noise ratio is an optimal configuration to achieve?

  1. minimum SNR of -33 dBm

  2. minimum SNR of -25 dBm

  3. minimum SNR of 25 dB

  4. minimum SNR of 33 dB

Answer: C Explanation:

The minimum recommended wireless signal strength for voice applications is -67 dBm and the minimum SNR is 25 dB.

Reference: http://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless-

controllers/116057-sitesurvey-guidelines-wlan-00.html

Question No: 13

Which two types of information must be included in the installation inventory portion of the

post-installation report? (Choose two.)

  1. all AP, controller, and MSE administrator credentials

  2. the names, locations, IP addresses, MAC addresses, etc. for every AP, controller, and MSE in the WLAN

  3. a layout of the rack that the equipment is installed

  4. results of the coverage audit performed with the site survey mapping tool

  5. the number and type of all WLAN clients and tags

Answer: A,B

Question No: 14

A hospital environment was designed to guarantee RF coverage at or better than -67 dBm in the 5 GHz spectrum. The customer mandates that RRM be used for DCA and TPC in both bands. After deployment, why do many of the legacy 802.11b/g devices have difficulty maintaining connectivity?

  1. Excessive co-channel interference in the 2.4 GHz band exists.

  2. Excessive overlapping channels in the 2.4 GHz band exists.

  3. TPC drastically reduces Tx power in the 2.4 GHz band.

  4. TCP drastically increases Tx power in the 2.4 GHz band.

Answer: C

Question No: 15

An engineer must perform a survey where the target client devices range from standard Wi-Fi-equipped laptops, consumer handhelds and tablets, and low power tracking tags limited to 12 mW Tx power. With which setting should the survey AP be configured?

  1. local power 11

  2. local power 5

  3. local power 14

  4. local power 8

Answer: B

Question No: 16

An engineer would like to calibrate the RF environment to improve accuracy. Which wireless attribute is added to the floor-level calculation by calibrating the floor?

  1. attenuation

  2. TX power

  3. multipath

  4. SNR

Answer: A

Question No: 17

What are two advantages of conducting an active survey versus a passive survey when verifying RF coverage?

(Choose two.)

  1. verifies packet loss

  2. verifies roaming

  3. verifies SNR

  4. verifies signal level

  5. verifies interferers

Answer: A,B

Question No: 18

An engineer is assigned to replace an older data-grade autonomous wireless network with a Cisco controllerbased wireless network to meet Voice over WLAN needs. The customer also wants all existing cable infrastructure to be reused and no new cable be specified.

How should the engineer respond to the customer’s requirements?

  1. Implement the wireless network with the restraints and decrease the TPC neighbor threshold to increase Txpower to provide overlapping cell coverage at sufficient SNR to provide for Voice over WLAN service.

  2. Implement the wireless network with the restraints and utilize high-gain antenna to provide overlapping cellcoverage at sufficient SNR to provide for Voice over WLAN service.

  3. Inform the customer that the network will not likely function as desired and a post install survey with thepossibility of some new cable would be recommended.

  4. Inform the customer that it is not possible to provide coverage and quality for Voice over

WLAN usingexisting AP locations and an entire overbuild will be necessary.

Answer: C

Question No: 19

Which three options are benefits of U-APSD? (Choose three.)

  1. optimized power-save mode periods

  2. increased call capacity

  3. bandwidth reservation

  4. synchronization of the transmission and reception of voice frames

  5. efficient roaming

  6. priority bandwidth and polling

Answer: A,B,D Explanation:

Unscheduled automatic power-save delivery (U-APSD) is a feature that has two key benefits:

The primary benefit of U-APSD is that it allows the voice client to synchronize the transmission and reception of voice frames with the AP, thereby allowing the client to go into power-save mode between the transmission/reception of each voice frame tuple. The WLAN client frame transmission in the access categories supporting U-APSD triggers the AP to send any data frames queued for that WLAN client in that AC. A U-APSD client remains listening to the AP until it receives a frame from the AP with an end-of-service period (EOSP) bit set. This tells the client that it can now go back into its power-save mode. This triggering mechanism is considered a more efficient use of client power than the regular listening for beacons method, at a period controlled by the delivery traffic indication map (DTIM) interval, because the latency and jitter requirements of voice are such that a WVoIP client would either not be in power-save mode during a call, resulting in reduced talk times, or would use a short DTIM interval, resulting in reduced standby times. The use of U-APSD allows the use of long DTIM intervals to maximize standby time without sacrificing call quality. The U-APSD feature can be applied individually across access categories, allowing U-APSD can be applied to the voice ACs in the AP, but the other ACs still use the standard power save feature.

The secondary benefit of this feature is increased call capacity. The coupling of transmission buffered data frames from the AP with the triggering data frame from the WLAN client allows the frames from the AP to be sent without the accompanying interframe spacing and random backoff, thereby reducing the contention experience by call.

Reference: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Mobility/vowlan/41dg/vowlan41d g-book/ vowlan_ch2.html#wp1045982

Question No: 20

Which list of characteristics must all controllers in a mobility group have in common based on best practices?

  1. mobility group name, version of controller code, Control and Provisioning of Wireless Access Points mode,ACLs, and WLANs (SSIDs)

  2. mobility domain name, version of controller code, and Control and Provisioning of Wireless Access Pointsmode

  3. mobility domain name, version of controller code, Control and Provisioning of Wireless Access Pointsmode, ACLs, and WLANs (SSIDs)

  4. mobility group name, version of controller code, and Control and Provisioning of Wireless Access Pointsmode

Answer: A

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