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NEW QUESTION 31
In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping?
- A. 1 and 5
- B. 4 and 6
- C. 2 and 8
- D. 7 and 11
Answer: C
NEW QUESTION 32
You are troubleshooting a problem with interference from a non-802.11 device. Given that the device is not a WLAN device, you cannot use a protocol analyzer and have chosen to use a spectrum analyzer. You want to view the signal from the interfering device over time to sec the activity that it is generating. What common spectrum analyzer view should you use for this analysis?
- A. Waterfall/Spectrogram
- B. APs
- C. Clients
- D. Real-Time FFT
Answer: A
NEW QUESTION 33
A standard PoE injector is use to power an access point requiring 802.3at. CAT6 cabling is in use. What is the maximum distance supported between the access point and the Ethernet switch with the use of a midspan power injector?
- A. 200 meters
- B. 328 meters
- C. 300 meters
- D. 100 meters
Answer: D
NEW QUESTION 34
When considering data rates available in HT and VHT PJY devices, in addition to the modulation, coding, channel width, and spatial streams, what impacts the data rate according to the MCS tables?
- A. The guard interval
- B. The client drivers
- C. The height of the antennas
- D. The Frequency band in use
Answer: A
NEW QUESTION 35
You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.
Based on this information, what is the likely cause of the problem?
- A. The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use
- B. The drivers in the laptop are corrupt
- C. The AP is overloaded during the work day
- D. The laptop has a failing wireless adapter
Answer: A
NEW QUESTION 36
You are deploying a WLAN with the access points configured for 10 mW of output power on the 2.4 GHz radios and 20 mW of output power on the 5GHz radios. Some semi-directional antennas are also in use. What kind of deployment is described?
- A. Residential
- B. High density
- C. SOHO
- D. Standard office
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION 37
You have been tasked with creating a wireless link between two buildings on a single campus. The link must support at least 150 Mbps data rates. What kind of WLAN technology role should you deploy?
- A. Access BSS
- B. WPAN
- C. IBSS
- D. Wireless bridging
Answer: D
Explanation:
https://www.wlanmall.com/what-is-a-wireless-bridge/
NEW QUESTION 38
ABC Company has thousands of Wi-Fi users accessing their network on a daily basis. Their WLAN consists of 700 access points, 6 WLAN controllers, and a wireless network management system.
What network functions are performed by the enterprise-class WNMS?
- A. Radio management, fast roaming, key caching, and other centralized control plane operations
- B. Management of WLAN controller configuration and provisioning of firmware updates
- C. Generating, encrypting, and decrypting 802.11 frames and collecting RF radio data.
- D. Centralized bridging of guest data traffic and application of firewall and QoS policies to data
Answer: B
NEW QUESTION 39
The IEEE 802.11-2016 standard requires VHT capable devices to be backward compatible with devices using which other 802.11 physical layer specification (PHY)?
- A. DSSS
- B. ERP-PBCC
- C. HR/DSSS
- D. OFDM
Answer: D
NEW QUESTION 40
You are configuring an access point to use channel 128. What important fact should be considered about this channels?
- A. It is a channel that is unsupported by most access points
- B. It is a 22 MHz channel so it will overlap with the channels above and below it
- C. It is a 2.4 GHz frequency band 40 MHz channel, so it should not be used
- D. It is a channel that likely requires DFS when used
Answer: D
NEW QUESTION 41
What term describes the effect of increasing the intensity of an RF wave with an antenna by focusing the energy in a specific direction?
- A. Distributed Radiation
- B. Active Amplification
- C. Passive Gain
- D. RF Flooding
- E. Beam Compression
Answer: C
NEW QUESTION 42
An 802.11-based network uses an AP and has several connecting clients. The clients include iPhones, iPads, laptops and one desktop. What WLAN use case is represented?
- A. WPAN
- B. IBSS
- C. BSS
- D. Ad-hoc
Answer: C
Explanation:
Explanation/Reference:
NEW QUESTION 43
What information is transmitted in the Beacon management frames of an HT access point to communicate about backward compatibility with ERP and HR/DSSS stations? (Choose 2)
- A. HT Protection mode
- B. Non-ERP Present field
- C. RIFS mode
- D. Power save mode of clients
- E. Secondary channel offset
Answer: A,E
NEW QUESTION 44
To ease user complexity, your company has implemented a single SSID for all employees.
However, the network administrator needs a way to control the network resources that can be accessed by each employee based on their department.
What WLAN feature would allow the network administrator to accomplish this task?
- A. WIPS
- B. RBAC
- C. SNMP
- D. WPA2
Answer: B
NEW QUESTION 45
What is a channel mode specified by the 802.11n (High Throughput) PHY?
- A. 20/40 MHz
- B. Frequency Hopping
- C. 80 MHz
- D. 22 MHz
Answer: A
NEW QUESTION 46
The network administrator at XYZ Company recently attended a training class on wireless security and realized that he should update the corporate security policy to address WLAN technology. The network administrator is listing the items that should be addressed in the security policy update, and has asked for your input.
What WLAN topics should be addressed by a company security policy? (Choose 3)
- A. User density planning and AP client association thresholds
- B. Theft prevention and data security of WLAN infrastructure devices
- C. Wired network performance analysis and baseline documentation
- D. Wireless intrusion monitoring and response procedures
- E. WLAN performance analysis baseline documentation
- F. Training of the IT staff on WLAN operational security
Answer: B,D,F
NEW QUESTION 47
What 802.11 network configuration would result in multiple stations broadcasting Beacon frames with the same BSSID but with different source addresses?
- A. Multiple APs have been loaded with the same configuration from an image file.
- B. A single AP supports multiple BSSs with different SSIDs.
- C. An SCA network is in use.
- D. An IBSS is used instead of a BSS.
Answer: D
NEW QUESTION 48
You are troubleshooting a client problem with a 2.4 GHz WLAN connection. The client is experiencing surprisingly low data rates during the work day. You analyze the workspace outside of business hours and detect a strong signal with a typical noise floor at the client location. During working hours, the user works with a laptop in the area and uses an external USB hard drive for continuous data access. The user also states that the laptop works as expected on her home network. The user working approximately 8 feet away from this client experiences no problems.
Based on this information, what is the likely cause of the problem?
- A. The laptop has a falling wireless adapter
- B. The drivers in the laptop are corrupt
- C. The external hard drive is USB 3.0 and is causing a significant increase in the noise floor when in use
- D. The AP is overloaded during the work day
Answer: D
NEW QUESTION 49
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