CWNA-108 Exam Questions

What is the final step in an effective troubleshooting process?

What is a channel mode specified by the 802.11n (High Throughput) PHY?

You are performing a post implementation validation survey. What basic tool can be used to easily locate areas of high co-channel interference?

What is appended to the end of each 802.11 data frame after the payload?

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 te...

What is primary metric of scanning can stations use to select the best AP for connectivity to the desired BSS?

Which one of the following channels can be used for VHT transmissions?

An 802.11 WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB of loss. The cable is connected to an antenna with 16 dBi of gain. What is the EIRP power out...

What is always required to establish a high quality 2.4 GHz RF link at a distance of 3 miles (5 kilometers)?

What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

What term describes the effect of increasing the intensity of an RF wave with an antenna by focusing the energy in a specific direction?

ABC Company has just purchased a 6 dBi patch antenna. After performing some tests with the 6 dBi antenna, they have concluded that more antenna gain is needed to cover their outdoo...

AP-1 is a 3x3:2 AP. STA-3 is a 3x3:3 client. What is the maximum number of spatial streams that can be used for a downlink HT-OFDM transmission from AP-1 to STA-3?

You are implementing a VHT-capable AP. Which one of the following channels is available in the 802.11ac amendment to the 802.11-2012 standard, which was not available in the standa...

XYZ Corporation is experiencing connectivity problems with their existing building-to-building bridge link. A concrete wall on the roof of one building is partially blocking the Fr...

What statements accurately describe the RF cables and connectors that are used in an 802.11 WLAN system? (Choose 3)

As a consultant, you've been hired by XYZ Company to provide recommendations about client device selection, operation, and interoperability. What information should be considered t...

As XYZ Company's wireless specialist, you have been asked to troubleshoot some unexpected frame patterns in a wireless protocol capture. Your peers explain that the network's beaco...

What term correctly completes the following sentence? In an IEEE 802.11 frame, the IP packet is considered by the MAC layer to be a(n) _________.

What term correctly completes the following sentence? 802.11a/b/g used a mandatory 800ns guard interval. 802.11n introduced an optional short 400ns guard interval. Guard intervals...

What feature(s) are most likely to be supported by 802.11 enterprise-class WLAN controllers? (Choose 4)

In a Wi-Fi client configuration utility, what feature is most likely to be user configurable?

What is a common feature of an 802.11 WLAN client utility? (Choose 2)

What features are most often configurable within 802.11 WLAN client utilities? (Choose 2)

Users and Network support personnel at a mid-sized equipment manufacturer have been discussing the potential uses and benefits of implementing an indoor WLAN. The network administr...

What statement describes the authorization component of a AAA Implementation?

When a client moves to a new BSS within an ESS, what step is a part of the 802.11 reassociation process?

What wireless networking term describes the increase of RF energy in an intentional direction with the use of an antenna?

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...

Your consulting firm has recently been hired to complete a site survey for a company. Your engineers use predictive modeling software for surveying, but the company insists on a pr...

In addition to throughput enhancements, what other improvements does a dual-band 802.11ac AP provide when compared with 802.11a/g APs? (Choose 2)

What factors are likely to cause the greatest impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS? (Choose 3)

What are two channel modes specified by the 802.11n (High Throughput) PHY? (Choose 2)

The OSI model is a 7-layer model for understanding the functions of a communication system. What OSI sublayers are specifically addressed by the IEEE 802.11-2012 standard? (Choose...

Which of the following frequency ranges are specified for use by IEEE 802.11 radios? (Choose all that apply.)

Which data rate is supported by 802.11g radios that is not supported by 802.11a radios?

A Wi-Fi Alliance interoperability certificate indicates that a device is a/b/g/n certified. It further indicates one transmit and receive spatial stream for both the 2.4 GHz and 5....

What distinguishes an independent basic service set (IBSS) from an infrastructure basic service set (BSS)?

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 outsi...

What statement accurately describes the RF cables and connectors that are used in an 802.11 WLAN system?

When compared with legacy Power Save mode, how does VHT TXOP power save improve battery life for devices on a WLAN?

What ID is typically mapped to an AP's MAC address if a single BSS is implemented?

A non-802.11 device is suspected of causing interference on the WLAN. You are not certain of the location or type of device. What is the best solution for locating this non-802.11...

A WLAN transmitter that emits a 50 mW signal is connected to a cable with 3 dB loss. If the cable is connected to an antenna with 9 dBi gain, what is the EIRP at the antenna elemen...

During a post-implementation survey, you have detected a non-802.11 wireless device transmitting in the area used by handheld 802.11g scanners. What is the most important factor in...

What security solution is deprecated in the 802.11 standard and should never be used in any modern WLAN deployment?

Prior to association, what parameter can 802.11 client devices measure and use to select the optimal access point for association?

In an infrastructure Basic Service Set (BSS), how does the passive scanning process occur?

What component of the 802.11 standard allows stations to reserve access to the RF medium for a specified period of time?

In an 802.11n WLAN with a heterogeneous set of associated client devices including 802.11b, 11g, and 11n, what HT protection mode will the BSS use?