CWNA-109 Exam Simulation: CWNP Wireless Network Administrator (CWNA) & CWNA-109 Study Guide Materials

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CWNP CWNA-109 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Radio Frequency (RF) Technologies: This topic explains the basic features and behavior of RF. It also discusses applying the basic concepts of RF mathematics and measurement. Lastly, the topic covers RF signal characteristics and the functionality of RF antennas.
Topic 2
  • WLAN Network Security: It addresses the concepts of weak security options, security mechanisms for enterprise WLANs, and security options and tools used in wireless networks.
Topic 3
  • WLAN Network Architecture and Design Concepts: This topic deals with describing and implementing Power over Ethernet (PoE). Furthermore, the topic covers different wireless LAN architectures, coverage requirements, roaming considerations, and common proprietary features in wireless networks.
Topic 4
  • RF Validation and WLAN remediation: This topic covers RF interference, WLAN performance, the basic features of validation tools, and common wireless issues.
Topic 5
  • WLAN Protocols and Devices: It focuses on terminology related to the 802.11 MAC and PHY, the purpose of the three main 802.11 frame types, MAC frame format, and 802.11 channel access methods.

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CWNP Wireless Network Administrator (CWNA) Sample Questions (Q86-Q91):

NEW QUESTION # 86
Which unit of measurement, as formally defined, is an absolute unit that is used to quantify received signal power levels on a logarithmic scale?

Answer: D

Explanation:
The unit of measurement that is an absolute unit and is used to quantify received signal power levels on a logarithmic scale is dBm. dBm stands for decibel-milliwatt and represents the power level relative to 1 milliwatt (mW). dBm is an absolute unit because it has a fixed reference point and does not depend on the input power level. dBm is used to measure the received signal power levels on a logarithmic scale because it can express large variations in power levels with small numbers and make calculations easier. For example, a 10 dB increase in power level means a
10-fold increase in power, and a 20 dB increase means a 100-fold increase in power.


NEW QUESTION # 87
What is the final step in an effective troubleshooting process?

Answer: B

Explanation:
The final step in an effective troubleshooting process is to document the results. Documentation is essential for keeping track of the problem history, the actions taken, the solutions implemented, and the outcomes achieved. Documentation can also help to prevent future problems, improve best practices, and provide feedback for improvement. Documentation should include relevant information such as problem description, symptoms, root cause analysis, resolution steps, verification methods, and lessons learned.


NEW QUESTION # 88
Option 43 must be configured to allow access points to locate controllers. In what network service should this option be configured?

Answer: D

Explanation:
DHCP (Dynamic Host Configuration Protocol) is the network service where option 43 must be configured to allow access points to locate controllers. DHCP is a protocol that allows a device to obtain an IP address and other network configuration parameters from a server. In a wireless controller scenario, the access points can use DHCP to request an IP address from a DHCP server, which can also provide the IP address or hostname of the wireless controller as an option in the DHCP response. Option 43 is a vendor-specific option that can be used to encode custom information for different types of devices. For example, Cisco access points can use option 43 to receive the IP address of the wireless controller from the DHCP server, while Aruba access points can use option 43 to receive the hostname of the wireless controller from the DHCP server. This way, the access points can discover the wireless controller and establish a connection with it.


NEW QUESTION # 89
You are attempting to locate the cause of a performance problem in two WLAN cells in a mostly overlapping coverage area. You note that one AP is on channel 1 and the other is on channel 2.
When you document your findings, what term do you use to describe the problem in this configuration?

Answer: C

Explanation:
In this scenario, you have two access points (APs) on channels 1 and 2, which are adjacent channels. This configuration results in Adjacent Channel Interference (ACI) because adjacent channels (e.g., 1 and 2) cause interference when used in the same or overlapping coverage areas.


NEW QUESTION # 90
What technology allows an access point to use multiple antennas to transmit and receive multiple spatial streams simultaneously, increasing throughput and reliability by taking advantage of multipath?

Answer: C

Explanation:
Multiple-Input Multiple-Output (MIMO) technology uses multiple antennas at both the transmitter and receiver to send and receive multiple spatial streams of data simultaneously over the same channel. MIMO takes advantage of multipath propagation rather than being hindered by it, using techniques such as spatial multiplexing to increase throughput, and Maximal Ratio Combining along with Transmit Beamforming to improve reliability. MIMO was introduced with 802.11n and remains a core component of 802.11ac and 802.11ax.


NEW QUESTION # 91
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