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السؤال #1
When deploying long-distance 802.11 bridge links (10 miles / 16 km), what parameter may be critical for improving data flow by reducing retries caused by the long distances?
A. The sequence control field value
B. The acknowledgement timeout threshold
C. The minimum transmit data rate value
D. The CTS-to-self threshold
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اجابة صحيحة: B
السؤال #2
You are testing a VoWLAN deployment, and your communication measurements show a certain amount of lost packets. What would be an acceptable packet error rate value to still provide acceptable call quality?
A. There should be 0% error in a VoWLAN type of deployment
B. No more than 1% PER max should be acceptable
C. No more than 4% PER max should be acceptable
D. No more than 8% PER max should be acceptable
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اجابة صحيحة: B
السؤال #3
What is a valid 40 MHz channel configuration in the 2.4 GHz ISM band where channels 1- 11 are permitted?
A. 4 (primary), +1 (secondary)
B. 2 (primary), -1 (secondary)
C. 8 (primary), +1 (secondary)
D. 1 (primary), 6 (secondary)
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اجابة صحيحة: A
السؤال #4
When implementing WLAN security according to common best practices, what feature should be enabled when configuring an EAP type?
A. The “Use WEP if RADIUS server unavailable” option
B. The “Validate server certificate” option
C. The “Trusted Root Certification Authorities” list
D. The Do not prompt user to authorize new servers or trusted certification authorities option
عرض الإجابة
اجابة صحيحة: B
السؤال #5
Which definition correctly describes the "local MAC" variation of the centralized WLAN architecture?
A. All MAC functions are performed by the AP
B. PHY functions are performed directly by the AP
C. The AP provides the RF termination point for the WLAN, but performs very few of the WLAN functions or services
D. All RF-, data-, and control-related WLAN functions are performed by the AP
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اجابة صحيحة: A
السؤال #6
When deploying long-distance 802.11 bridge links (10 miles / 16 km), what parameter may be critical for improving data flow by reducing retries caused by the long distances?
A. The sequence control field value
B. The acknowledgement timeout threshold
C. The minimum transmit data rate value
D. The CTS-to-self threshold
عرض الإجابة
اجابة صحيحة: B
السؤال #7
Which definition correctly describes the local MAC variation of the centralized WLAN architecture?
A. All MAC functions are performed by the AP
B. PHY functions are performed directly by the AP
C. The AP provides the RF termination point for the WLAN, but performs very few of the WLAN functions or services
D. All RF-, data-, and control-related WLAN functions are performed by the AP
عرض الإجابة
اجابة صحيحة: A
السؤال #8
What are some advantages of designing guest access with all guest users tunneled directly into the DMZ?
A. Allows a single SSID with different authentication/encryption models to be used for all WLAN services for corporate users and guests
B. Minimizes configuration requirements for segmentation and filtering of guest traffic across internal LAN
C. The border firewall configuration will not require any additional rules to pass guest traffic to the DMZ controller
D. Enhances performance of web proxy servers in the DMZ for guest Internet traffic
عرض الإجابة
اجابة صحيحة: B
السؤال #9
ABC Manufacturing has a heavily-used dual-band (2.4 / 5 GHz) WLAN, but sporadic RF interference across the 2.4 GHz band is causing dropped VoWiFi calls and leading to data connectivity and throughput problems. In addition to avoiding 2.4 GHz channels and installing a distributed spectrum analyzer to locate RF interference sources, what should the implementer do to resolve the problem fully?
A. Have only guest access on the 5 GHz channels
B. Move all corporate data clients and VoWiFi devices to the 5 GHz channels appropriate for their regulatory domain
C. Use captive portals for guest authentication in 5 GHz
D. Implement WPA-PSK everywhere in the network
عرض الإجابة
اجابة صحيحة: B
السؤال #10
When preparing a floor plan graphic for use in predictive and manual site surveying, what calibration method will lead to the most accurate and reliable RF data?
A. Use the known size of a small object, such as a ceiling tile, and use a single instance of this object (e
B. Measure the width of an actual office doorway with a tape measure and use this value to calibrate against a doorway graphic
C. Use the longest available measurement (like a straight exterior wall) to calibrate the graphics scale
D. Calibrate the ceiling height of the floor plan first, then the survey software should be able to auto-calibrate the X and Y planes of the graphic
عرض الإجابة
اجابة صحيحة: C
السؤال #11
What is the purpose of DHCP Option 43, and how is it used with WLANs?
A. It provides clients with a temporary IP address on a restricted VLAN until 802
B. It provides IP address bindings for specific network nodes that require long-term IP address assignments
C. It supports vendor-specific IP address attributes for node discovery purposes
D. It integrates a DHCP server with AAA servers and user databases to dynamically assign IP addresses to client devices
عرض الإجابة
اجابة صحيحة: C
السؤال #12
You have determined the best mounting locations for APs in a given installation. The facilities manager has asked you to change the locations for several APs due to aesthetic concerns. You suggest mounting the APs in the ideal locations and painting them so they go unnoticed in the environment. What is a valid recommendation or consideration when painting APs?
A. Always use paints with metallic dye in them to prevent potential RF propagation impact
B. Painting APs will significantly reduce the output power
C. Painting APs may void the product manufacturer’s warranty
D. Most AP models for indoor environments come in a variety of form factors and colors
عرض الإجابة
اجابة صحيحة: C
السؤال #13
What basic RF math formula should be used as a baseline to convert an RF value in units of dBm into a value of mW? *Note:dBm in the formulas represents the known dBm value
A. 0 dBm = 1 mW
B. mW
C.
D. mW mW
عرض الإجابة
اجابة صحيحة: A
السؤال #14
One of your customers plans on providing wireless coverage to a warehouse facility. After performing an initial walkthrough, you collect the following information: The central part of the warehouse is between 400 and 600 feet (122 to 183 meters) from the warehouse switches mounted on the walls. ? The warehouse storage is composed of metallic racks with varying inventory levels and contents, from electronics and plastic toys to food pallets and juice bottles. ? Workers need basic data coverage from their wor
A. Equip workers laptops with a directional antenna and install APs less than 328 feet (100m) away from the switch
B. In this case, extend the cable length just beyond 328 feet (100 m) and position APs as close as possible to the central area of the warehouse
C. Position APs along the walls, and equip the APs with Yagi antennas to cover the central area
D. Install APs for client access in the central area and use a mesh backhaul link to connect to the DS
عرض الإجابة
اجابة صحيحة: D

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