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Free Cisco 300-425 ENWLSD Practice Questions 2026 Part1

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Question #1
A wireless engineer is getting ready to perform a predictive site survey. The new network needs to support data and voice over wireless. Which two Cisco recommendations should be considered for the design? (Choose two.)
A. Set -19 dBm of separation between APs on the same channel
B. Use the 5 GHz radio band due to 40 MHz bandwidth capability
C. Use the 5 GHz radio band due to the 24 non-overlapping channels
D. Set the cell boundary to -67 dBm
E. Set the cell overlap to 15%
F. Reveal Answer
View answer
Correct Answer: BD

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Question #2
Which design document contains detailed RF coverage maps, AP placement, and antenna orientation?
A. Low-Level Design (LLD)
B. High-Level Design (HLD)
C. BOM
D. Network topology diagram
View answer
Correct Answer: A
Question #3
As part of a wireless site survey in a hospital, an engineer needs to identify potential Layer 1 interferers. In which two areas is the engineer most likely to find sources of 2.4 GHz and 5 GHz RF noise? (Choose two.)
A. agnetic resonance imaging
B. itchen
C. amma Knife radiation treatment
D. -ray radiography
E. atient room
View answer
Correct Answer: BE
Question #4
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?
A. LC port groups
B. F groups
C. P groups
D. nterface groups
View answer
Correct Answer: C
Question #5
An engineer must decide the cell overlap for a wireless voice deployment. Which Cisco measurement recommendation should be considered?
A. The edge of the cell should be −67 dBm
B. The edge of the cell should be below 35 RSSI
C. The measurement should be done on the 2
D. One AP should be deployed per 3000 square feet
View answer
Correct Answer: A
Question #6
An engineer has performed a predictive site survey for high-speed data and voice in an indoor office.What is the recommended data rate with -67 dBm signal level for optimal VoWLAN design?
A. Mbps on 802
B. 4 Mbps on 802
C. 2 Mbps on 802
D. 4 Mbps on 802
View answer
Correct Answer: D
Question #7
Refer to the exhibit.What is the main reason why the Wi-Fi design engineer took a different approach than installing theAPs in the offices, even though that installation provides better coverage?
A. esthetics
B. ransmit power considerations
C. ntenna gain
D. ower supply considerations
View answer
Correct Answer: B
Question #8
An engineer is designing a new wireless network. Based on the design, OceExtend AP functionality must be used. Which type of license must the Cisco 5520 WLC v8.3 have?
A. Base license
B. OceExtend AP license
C. WPlus license
D. Plus license
E. Reveal Answer
View answer
Correct Answer: A
Question #9
A university lecture hall has a Cisco wireless high-density network with this configuration:* 5 GHz only* 20-MHz channels* UNII-1, UNII-2, and UNII2-E channels* TPC minimum = 8* TPC maximum = 14The lecture hall is 200 feet by 100 feet and has 16 Cisco APs that use directional antennas. Which feature must be included in the design to mitigate and reduce high-channel utilization from rogue APs?
A. band select
B. DFS detection
C. RxSOP
D. 802
View answer
Correct Answer: C
Question #10
An engineer has performed a predictive site survey for high-speed data and voice in an indoor office. What is the recommended data rate with −67 dBm signal level for optimal VoWLAN design?
A. 6 Mbps on 802
B. 24 Mbps on 802
C. 12 Mbps on 802
D. 24 Mbps on 802
View answer
Correct Answer: B
Question #11
A wireless network consultant must assess an existing wireless LAN controller. Which section must the consultant check before replacing the old APs with APs that are IEEE 802.11ac-capable?
A. umber of AP licenses
B. ontroller PSU
C. hroughput capacity
D. oftware version
View answer
Correct Answer: D
Question #12
A wireless engineer is performing a post verification of a wireless network. Which two metrics does the engineer verify to ensure that the wireless network can support voice services? (Choose two.)
A. The coverage area must have a noise floor that does not exceed −87 dBm
B. The client device must have at least an −67 dBm RSSI
C. The rate of retransmitted packets must be 15 percent or below
D. The rate of retransmitted packets must be 20 percent or below
E. The client device must have at least an −65 dBm RSSI
View answer
Correct Answer: BC
Question #13
A customer is concerned about mesh backhaul link security. Which level of encryption does the backhaul link use?
A. hash
B. AES
C. WEP
D. 3DES
View answer
Correct Answer: B
Question #14
An engineer must decide the cell overlap for a wireless voice deployment. Which Cisco measurement recommendation should be considered?
A. The edge of the cell should be −67 dBm
B. The edge of the cell should be below 35 RSSI
C. The measurement should be done on the 2
D. One AP should be deployed per 3000 square feet
View answer
Correct Answer: A
Question #15
A wireless engineer is utilizing the voice readiness tool in Cisco Prime for a customer that wants to deploy Cisco IP phones. Which dBm range is the network inspected against?
A. −78 to −65 dBm
B. −72 to −67 dBm
C. −85 to −65 dBm
D. −85 to −67 dBm
View answer
Correct Answer: D
Question #16
An enterprise has moved most services to the cloud, including email applications and real-time communication. Which feature must be enabled on the wireless network to improve the user experience?
A. QoS
B. Radio management
C. Interference mitigation
D. Fast secure roaming
E. Reveal Answer
View answer
Correct Answer: D
Question #17
A wireless engineer is utilizing the voice readiness tool in Cisco Prime for a customer that wants to deploy Cisco IP phones. Which dBm range is the network inspected against?
A. −78 to −65 dBm
B. −72 to −67 dBm
C. −85 to −65 dBm
D. −85 to −67 dBm
View answer
Correct Answer: D
Question #18
A wireless engineer is utilizing the voice readiness tool in Cisco Prime for a customer that wants to deploy Cisco IP phones. Which dBm range is the network inspected against?
A. −78 to −65 dBm
B. −72 to −67 dBm
C. −85 to −65 dBm
D. −85 to −67 dBm
View answer
Correct Answer: D
Question #19
Which two considerations must a network engineer have when planning for voice over wireless roaming? (Choose two.)
A. AFull reauthentication introduces gaps in a voice conversation
B. BRoaming time increases when using 802
C. CRoaming occurs when the phone has seen at least four APs
D. DRoaming occurs when the phone has reached -80 dBs or below
E. ERoaming with only 802
View answer
Correct Answer: AE
Question #20
Which two considerations must a network engineer have when planning for voice over wirelessroaming? (Choose two.)
A. ull reauthentication introduces gaps in a voice conversation
B. oaming time increases when using 802
C. oaming occurs when the phone has seen at least four APs
D. oaming occurs when the phone has reached -80 dBs or below
E. oaming with only 802
View answer
Correct Answer: AE
Question #21
As part of a wireless site survey in a hospital, an engineer needs to identify potential Layer 1 interferers. In which two areas is the engineer most likely to find sources of 2.4 GHz and 5 GHz RF noise? (Choose two.)
A. magnetic resonance imaging
B. kitchen
C. Gamma Knife radiation treatment
D. X-ray radiography
E. patient room
View answer
Correct Answer: BE
Question #22
A customer has a single anchor WLC named Anchor A. Anchor A is in a DMZ and provides guest access. The customer wants to deploy an additional anchor controller named Anchor B to provide redundancy if Anchor A fails. Which design approach should be taken for the guest WLAN priority on the foreign WLC for each anchor WLC?
A. et Anchor A to priority 1 and Anchor B to priority 1
B. et Anchor A to priority 1 and Anchor B to priority 3
C. et Anchor A to priority 3 and Anchor B to priority 1
D. et Anchor A to priority 3 and Anchor B to priority 3
View answer
Correct Answer: B
Question #23
Where must the APs be mounted when used in a high-density wireless network to provide 6 dB to 20dB of attenuation to a cell?
A. n the aisle
B. nder the seat
C. bove the stage
D. nder the stage
View answer
Correct Answer: B
Question #24
Which three pieces of equipment are needed to conduct a fully measured wireless survey? (Choose three.)
A. PoE battery
B. spirit level
C. access point
D. tall tripod
E. goggles
F. ladder
View answer
Correct Answer: ACD
Question #25
When conducting a site survey for real-time traffic over wireless, which two design capabilities of smartphones and tablets must be considered? (Choose two.)
A. no support for 802
B. higher data rates than laptops
C. fewer antennas than laptops
D. no support for 802
E. lower data rates than laptops
View answer
Correct Answer: CE
Question #26
An engineer must design a WLAN that can handle voice traffic and location-based services. Which two design features enable both services to function properly? (Choose two.)
A. Use every channel possible in 5 GHz
B. Put APs in corners of each floor for triangulation
C. Have a 15% overlap of cell coverage
D. Use every channel possible in 2
E. Have a 25% overlap of cell coverage
View answer
Correct Answer: CE
Question #27
After the completion of a site survey with Ekahau Site Survey tool, using the default color palette, it is noted that multiple areas are shown as white on the heat map when viewing 5 GHz signal strength data. What does this indicate about the signal strength?
A. The area is below -67 dBm at coverage cell edge
B. The area is below -100 dBm at coverage cell edge
C. The area is below the minimum threshold configured on the tool
D. The area is below the detectable level and indicates no RF signal
View answer
Correct Answer: D
Question #28
A wireless engineer is utilizing the voice readiness tool in Cisco Prime for a customer that wants to deploy Cisco IP phones. Which dBm range is the network inspected against?
A. −78 to −65 dBm
B. −72 to −67 dBm
C. −85 to −65 dBm
D. −85 to −67 dBm
View answer
Correct Answer: D
Question #29
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?
A. orner only
B. erimeter and corner
C. erimeter only
D. ndoor and outdoor
View answer
Correct Answer: B
Question #30
A university wants to deploy a high density of APs in an area where a high number of users congregate. Which functionality allows the university to optimize the RF settings tor APs that operate In different environments or coverage zones?
A. AP groups
B. RF profiles
C. RF groups
D. AP profiles
View answer
Correct Answer: B
Question #31
Which non-Wi-Fi interferer can be identified by Metageek Chanalyzer?
A. PDAs
B. jammers
C. smartphones
D. printers
View answer
Correct Answer: B
Question #32
Refer to the exhibit. An engineer determined that during a recent controller failure, some APs did not failover to their secondary controller based on the network design, which has sufficient licenses for all APs. The controllers are not in a mobility group but have A records for their hostnames in DNS. Which setting needs to be addressed?
A. he AP failover priority was not set high enough
B. he secondary controller IP address is incorrect
C. NS hostnames are required to be FQDN
D. he controllers must be in the same mobility group
View answer
Correct Answer: B
Question #33
A wireless engineer is hired to design a network for a technology company. The company campus hasfour buildings and a warehouse with access points that provide full wireless coverage as well as apair of WLCs located in the core of the network. Which type of wireless architecture is being used?
A. nified deployment
B. utonomous deployment
C. entralized deployment
D. istributed deployment
View answer
Correct Answer: C
Question #34
An engineer has configured guest anchoring for a newly created SSD however, the mobility tunnelsare not up, and EPING is failing from the foreign WLC to the anchor WLC. Which traffic flow must beallowed at the firewall to enable the communication?
A. DP port 16666
B. P protocol 97
C. DP port 97
D. CP port 97
View answer
Correct Answer: A
Question #35
A network engineer is preparing for an office site survey with a height of 2.5 meters. Which three components are recommended to complete the survey? (Choose three.)
A. Use a battery pack to power APs
B. Use a drawing of the office space to draw AP and client placements
C. Use DoS attack on APs while measuring the throughput
D. Use APs with directional antennas
E. Use APs with external antennas
F. Use APs with built-in antennas
View answer
Correct Answer: ABF
Question #36
A Cisco controller-based wireless network must support workgroup bridges. The APs configured as workgroup bridges must support wired and wireless clients. The wireless clients must connect to the spare radio. What is the maximum number of wired client connections supported on a workgroup bridge?
A. 20
B. 25
C. 30
D. 35
View answer
Correct Answer: A
Question #37
A company wants to replace its existing PBX system with a new VoIP System that will include wirelessIP phones. The CIO has concerns about whether the company’s existing wireless network cansupport the new system. Which tool in Cisco Prime can help ensure that the current network willsupport the new phone system?
A. ocation Readiness
B. ite Calibration
C. ap Editor
D. oice Readiness
View answer
Correct Answer: D
Question #38
Clustering Cisco WLCs into a single RF group enables the RRM algorithms to scale beyond the capabilities of a single Cisco WLC. How many WLCs and APs in an RF group can the controller software scale up to in WLC release 8.9 depending on the platform?
A. p to 20 WLCs and 1000 APs
B. p to 20 WLCs and 3000 APs
C. p to 20 WLCs and 4000 APs
D. p to 20 WLCs and 6000 APs
View answer
Correct Answer: D
Question #39
An engineer is designing a wireless deployment for a university auditorium. Which two features can be used to help deal with the issues introduced by high AP count? (Choose two.)
A. TSPEC
B. RXSOP
C. TPC
D. LSS
E. DFS
View answer
Correct Answer: BC
Question #40
An engineer has performed a predictive site survey for high-speed data and voice in an indoor office. What is the recommended data rate with גˆ’67 dBm signal level for optimal VoWLAN design?
A. Mbps on 802
B. 4 Mbps on 802
C. 2 Mbps on 802
D. 4 Mbps on 802
View answer
Correct Answer: C

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