300-425 practice questions 211–220

1. Question 211 · 245 in bank

   DRAG DROP - Drag and drop the characteristics from the left onto the correct functionalities on the right. Select and Place:

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   Explanation

   With LAG, all of the controller ports need to connect to the same neighbor switch. If the neighbor switch goes down, the controller loses connectivity. With multiple AP-manager interfaces, you can connect your ports to different neighbor devices. If one of the neighbor switches goes down, the controller still has connectivity. My opinion is Multiple AP: Avoids... Complex... LAG: Simple... Achieves... You can't mix Simple and Complex. Also "LAG simplifies controller configuration because you no longer require to configure primary and secondary ports for each interface" Check following link: https://www.cisco.com/c/en/us/td/docs/wireless/controller/7-4/configuration/guides/consolidated/b_cg74_CONSOLIDATED/b_cg74_CONSOLIDATED_chapter_010100001.html

   Source: Adapted from community discussion — Ram0n_Aya1a

   References

   • Cisco documentation

   

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2. Question 212 · 245 in bank

   A customer is running a guest WLAN with a foreign/export-anchor setup. There is one anchor WLC in the US and two in Europe. Anchor WLC priorities are used to prefer local anchors. During a routine network audit, it is discovered that a large number of guest client sessions in the US are anchored to the WLCs in Europe. Which reason explains this behavior?

   • AThe foreign WLC failed and recovered.
   • BThe US anchor WLC failed and recovered.
   • CThe US anchor WLC is anchored to itself with a priority value of zero.
   • DThe anchor WLC is in the same mobility group.

   Show answer

   Answer: B

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3. Question 213 · 245 in bank

   Select 2

   An engineer has successfully configured high availability and SSO using two Cisco 5508 Wireless LAN Controllers. The engineer can access the Active Primary WLC, but the Secondary Standby WLC is not accessible. Which two methods allow access to the standby unit? (Choose two.)

   • Avia the console connection
   • BSSH to the redundancy management interface of the primary WLC
   • CSSH to the service port interface
   • DSSH to the virtual interface of the secondary WLC
   • ESSH to the management interface of the primary WLC

   Show answer

   Answer: AC

   Explanation

   A&C is correct: Once SSO is enabled, the Standby WLC can be accessed via console connection or via SSH on the service port and on the redundant management interface https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-7/High_Availability_DG.html

   Source: Adapted from community discussion — RhJ72

   References

   • Cisco documentation

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4. Question 214 · 245 in bank

   A customer has two Cisco 5508 WLCs that manage all the access points in their network and provide N+1 redundancy and load balancing. The primary Cisco WLC has 60 licenses and the secondary Cisco WLC has 40. The customer wants to convert the N+1 model to an HA model and provide SSO. Configuration must be performed during a maintenance window. After performing all the configurations on both controllers, the config redundancy unit secondary command is issued on the secondary Cisco WLC and it fails. Which parameter needs to be in place to complete the configuration?

   • AA cable in the RP port
   • BThe secondary Cisco WLC needs a minimum of 50 base licenses
   • CThe primary Cisco WLC is already set as the secondary unit
   • DSSO needs to be enabled

   Show answer

   Answer: B

   Explanation

   Correct: If you want to convert any existing WLC as a Standby WLC, do so using the config redundancy unit secondary command in the CLI. This CLI command will only work if the WLC which is intended to work as Standby has some number of permanent license count. This condition is only valid for the 5508 WLC, where a minimum of 50 AP Permanent licenses are needed to be converted to Standby. There is no restriction for other WLCs such as the 5520, WiSM2, 7500, and 8500.

   Source: Adapted from community discussion — cskshiet

   References

   • Cisco documentation

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5. Question 215 · 245 in bank

   Select 3

   An engineer must create data-link redundancy for the company's Cisco Wireless LAN Controller. The engineer has decided to configure LAG-based redundancy instead of port-based redundancy. Which three features of LAG-based redundancy influenced this decision? (Choose three.)

   • APackets are always sent out on the same port they are received on.
   • BAll interface traffic passes as long as one port is up.
   • CThe same port has multiple untagged dynamics interfaces.
   • DInterface connection to two separate nonstacked switches is available.
   • EFull bandwidth of all links is available.
   • FPorts are grouped into multiple LAGs.

   Show answer

   Answer: ABE

   Explanation

   I would say ABE You cannot configure the controller’s ports into separate LAG groups. Only one LAG group is supported per controller. Therefore, you can connect a controller in LAG mode to only one neighbor device.

   Source: Adapted from community discussion — skh

   References

   • Cisco documentation
   • cisco.com documentation

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6. Question 216 · 245 in bank

   

   Refer to the exhibit. A consulting engineer is preparing to survey a greenfield deployment for a 6000-sqft building with four floors. To prepare for the predeployment survey, the engineer uses a third-party simulation tool. With the default settings on the tool, the survey report shows that the RF signal extends far outside the building walls or areas where data points were taken. The engineer must configure the tool with site properties based on the provided building and floor specifications. Which change must the engineer make to the survey tool?

   • AIncrease the Signal Propagation Assessment height.
   • BIncrease the map dimensions to fit the extended signal.
   • CDecrease the Signal Propagation Assessment height.
   • DReduce the AP default power.

   Show answer

   Answer: C

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7. Question 217 · 245 in bank

   An engineer is designing a high-density WLAN that must support 100 concurrent users with 100 Mbps throughput consistently. The design allows for 20 Mbps per cell and per channel on the 5 GHz band. How many channels must the design use to provide 1 Mbps per user prior to RF overhead?

   • A5
   • B10
   • C15
   • D20

   Show answer

   Answer: A

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8. Question 218 · 245 in bank

   An engineer is designing a wireless network in a historic building that has large rooms and ornate wall coverings. Which approach must be considered first when placing access points?

   • Aaesthetics
   • BRF interference
   • CRF coverage
   • Dcell overlap

   Show answer

   Answer: A

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9. Question 219 · 245 in bank

   An engineer is designing a wireless network for a small airport and completes the initial walkthrough phase of the facility. Which step of the WLAN site survey should the engineer perform next?

   • Apassive survey
   • Bactive survey
   • Cpost-deployment survey
   • Dpredeployment survey

   Show answer

   Answer: D

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10. Question 220 · 245 in bank

    An engineer completes a walkthrough of a customer warehouse and is instructed to perform a Layer 1 sweep and analysis before beginning a wireless survey. Which tool is required?

    • AAirPCap WLAN adapter
    • Bspectrum analyzer
    • Cprotocol analyzer
    • Doptical time domain reflectometer

    Show answer

    Answer: B

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300-425 practice, question 211. 245 questions available.