300-425 practice questions 151–160

1. Question 151 · 245 in bank

   A technician connects a Cisco Aironet 3700 Series AP to a switch and realizes that the AP is coming up with 3x3 MIMO. What explains this behavior?

   • AA redundant power supply is unavailable on the switch.
   • BThe switch is 802.3af capable.
   • CThe AP is getting power from a power injector.
   • DThe switch is PoE+ capable.

   Show answer

   Answer: B

   Explanation

   802.3af delivers 15.4W which downgrades the AP to 3x3. If it was a POE+ switch then you would get 30W of power and the AP would be able to use it's full features but the question is only asking about 3x3 MIMO. https://www.cisco.com/c/en/us/td/docs/wireless/access_point/3700/quick/guide/ap3700getstart.html

   Source: Adapted from community discussion — kaimi

   References

   • Cisco documentation

   Next question

2. Question 152 · 245 in bank

   A network engineer is working on a design for a wireless network that must support data, voice, and location services. To support these services, which access point placement must the engineer use?

   • Acorner only
   • Bperimeter and corner
   • Cperimeter only
   • Dindoor and outdoor

   Show answer

   Answer: B

   Explanation

   B is correct, the following is found in the location-based services design guide: In order to assure proper convex hull establishment around the set of location data points possessing high potential for good accuracy, access points should be placed in each corner of the floor, as well as along the floor perimeter between corners

   Source: Adapted from community discussion — Hatestar

   References

   • Cisco documentation

   Next question

3. Question 153 · 245 in bank

   Select 3

   A customer has noticed that Client Band Select is enabled and no clients are utilizing the 5 GHz band. Which three parameters must be met to ensure that wireless clients use the 5 GHz band? (Choose three.)

   • AEnsure that channel bonding is enabled on the WLAN.
   • BEnsure that the co-channel interference has not exceeded גˆ’85 dBm.
   • CEnsure that the UNII-2 extended channels are enabled on the 802.11a radios.
   • DEnsure that the client is receiving RSSI above the minimum band select RSSI threshold.
   • EEnsure that the client is dual-band capable.
   • FEnsure that the WLAN has 802.11a enabled.

   Show answer

   Answer: DEF

   Explanation

   I thing DEF is correct. UNII-2 Extended channels are additional but if 'a' is disabled, the 5GHz radios won't work at all.

   Source: Adapted from community discussion — Coffee313

   Next question

4. Question 154 · 245 in bank

   An engineer is reducing the subnet size of the corporate WLAN by segmenting the VLAN into smaller subnets. Clients will be assigned a subnet by location. Which type of groups should the engineer use to map the smaller subnets to the corporate WLAN?

   • AWLC port groups
   • BRF groups
   • CAP groups
   • Dinterface groups

   Show answer

   Answer: C

   Explanation

   c In typical deployment scenarios, each WLAN is mapped to a single dynamic interface per WLC, but consider a deployment scenario where there is a 4404-100 WLC that supports the maximum number of APs (100). Now consider a scenario where 25 users are associated to each AP. That would result in 2500 users who share a single VLAN. Some customer designs can require substantially smaller subnet sizes. One way to deal with this is to break up the WLAN into multiple segments. The AP grouping feature of the WLC allows a single WLAN to be supported across multiple dynamic interfaces (VLANs) on the controller. This is done when a group of APs is mapped to a specific dynamic interface. APs can be grouped logically by employee workgroup or physically by location. https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-vlan/71477-ap-group-vlans-wlc.html

   Source: Adapted from community discussion — rrahim

   References

   • Cisco documentation
   • Cisco documentation

   Next question

5. Question 155 · 245 in bank

   A customer has determined that aesthetics is a primary concern for their upcoming guest deployment. Which design consideration can be leveraged to address this concern?

   • APaint the access point to cover the LED from being noticeable.
   • BUse enclosures to hide the wireless infrastructure in the surrounding environment.
   • CUse AIR-AP-BRACKET-1 to allow for greater mounting locations
   • DDeploy environmentally friendly cabling components to blend into the environment.

   Show answer

   Answer: B

   Next question

6. Question 156 · 245 in bank

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

   • AQoS profile
   • BAVC profile
   • CRF profile
   • DISE profile

   Show answer

   Answer: C

   Next question

7. Question 157 · 245 in bank

   A wireless deployment in a high-density environment is being used by vendors to process credit card payment transactions via handheld mobile scanners. The scanners are having problems roaming between access points in the environment. Which feature on the wireless controller should have been incorporated in the design?

   • ARX-SOP
   • B802.11w
   • CAP Heartbeat Timeout
   • DApplication Visibility Control

   Show answer

   Answer: A

   Explanation

   A - seems the best answer. "The intended use-case for RX-SOP is for high density deployments such as stadiums, large auditoriums, and other scenarios where many client devices are connected per AP. Additionally, this tool should only be used for fine-tuning after other Wi-Fi best practices have been followed. Finally, RX-SOP should only be used to tune out neighboring or adjacent cells of coverage. Never use RX-SOP in an attempt to tune out distant client devices, as this is not the intended use case for the feature and it can cause unintended connectivity problems."

   Source: Adapted from community discussion — EGD

   References

   • Cisco documentation

   Next question

8. Question 158 · 245 in bank

   A university is in the process of designing a wireless network in an auditorium that seats 500 students and supports student laptops. Which design methodology should the university implement in the auditorium?

   • Aroaming design model
   • Bvoice design model
   • Clocation design model
   • Dhigh-density design model

   Show answer

   Answer: D

   Next question

9. Question 159 · 245 in bank

   An engineer is designing an outdoor mesh network to cover several sports fields. The core of the network is located in a building at the entrance of a sports complex. Which type of antenna should be used with the RAP for backhaul connectivity?

   • A5 GHz, 8-dBi omnidirectional antenna
   • B2.4 GHz, 8-dBi patch antenna
   • C5 GHz, 14-dBi patch antenna
   • D2.4 GHz, 14-dBi omnidirectional antenna

   Show answer

   Answer: C

   Explanation

   C. 5 GHz, 14-dBi patch antenna Here's the rationale for this choice: 5 GHz Frequency Band: The 5 GHz band is generally preferred for backhaul connectivity in a mesh network due to its larger bandwidth capacity and reduced interference compared to the 2.4 GHz band. This is particularly important in an outdoor setting like a sports complex, where there might be other sources of interference. 14-dBi Patch Antenna: A patch antenna with a high gain (14 dBi) is directional and focuses the signal in a specific direction, which is ideal for backhaul links where the signal needs to travel a longer distance from the RAP to other access points in the network. The directional nature of the patch antenna helps in maintaining a strong and focused signal, increasing the link's reliability and performance.

   Source: Adapted from community discussion — Babustest

   References

   • Cisco documentation
   • Cisco documentation

   Next question

10. Question 160 · 245 in bank

    A network engineer needs to create a wireless design to bridge wired IP surveillance cameras in the parking lot through a mesh AP. To which operate mode of the AP should the cameras connect?

    • ARAP
    • BMAP
    • CFlexConnect
    • Dlocal

    Show answer

    Answer: B

    Explanation

    MAPs can also connect wired clients just like WGBs. Question is about connecting wired cameras through a MAP. It's B. WGB would also be another option for wired-over-wireless connection.

    Source: Adapted from community discussion — anagy11

    References

    • Cisco documentation

    Next question

Keyboard:J Kmove between questionsA–Dselect an answerRshow or hide the answer← →change page

300-425 practice, question 151. 245 questions available.