CWNA-106 Exam Questions

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?

Which antenna types are commonly used by indoor Wi-Fi devices in a MIMO diversity implementation? (Choose 2)

What phrase correctly completes the following sentence? When using WMM Power Save operation, a wireless client device ______________.

When replacing the antenna of a WLAN device with a similar antenna type that has a higher passive gain, what antenna characteristic will decrease?

What statements about the beamwidth of an RF antenna are true? (Choose 2)

What HT technology requires MIMO support on both the transmitter and receiver?

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...

You are selecting antennas for a WLAN operating in the 5 GHz frequency band. What specifications should be evaluated for an antenna before it is implemented in this WLAN system? (C...

What is the intended use for the WLAN hardware known as a pole or mast mount unit?

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...

When using an RF splitter to connect one transceiver to sector antennas loss is incurred. What is this loss called?

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

What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) in IEEE 802.11 WLANs?

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...

Which IEEE 802.11 physical layer (PHY) specifications include support for and compatibility of both OFDM and HR/DSSS? (Choose 2)

The IEEE 802.11-2012 standard requires VHT capable devices to be backward compatible with devices using which other 802.11 physical layer specifications (PHYs)? (Choose 2)

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 factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS? (Choose 2)

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

In an 802.11 2.4 GHz system, what 22 MHz channels are considered non-overlapping? (Choose 2)

What facts are true regarding controllers and APs in a Split MAC architecture? (Choose 2)

The center frequency of channel 1 in the 2.4 GHz band is 2.412 GHz (2412 MHz). What is the center frequency of channel 4?

What answers correctly complete the following sentence? ____________ and ____________ carrier sense functions are used to determine if the wireless medium is busy. (Choose 2)

In an 802.11n 2.4 GHz BSS, what prevents each station from using the full network bandwidth (e.g. 130 Mbps) for user data throughput when multiple clients are actively exchanging d...

When a client station sends a broadcast probe request frame with a wildcard SSID, how do APs respond?

The IEEE 802.11a/n/ac physical layer technologies utilize the 5 GHz frequency band. What is true of the channels in this frequency spectrum?

What features were introduced in the IEEE 802.11h amendment in order to uphold regulatory requirements for 5 GHz operation? (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....

When a client moves to a new BSS within an ESS, what steps are part of the 802.11 reassociation process? (Choose 2)

In an enterprise WLAN, what condition will prevent a dual-band VHT/HT client device from performing a fast and seamless transition (i.e. latency-sensitive applications are not disr...

What statements about the SSID are true? (Choose 2)

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

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...

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

As defined in the 802.11 specification, legacy Power Save requires an inefficient back-and-forth frame exchange process. Due to this inefficiency, many WLAN device implementations...

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...

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?

During the discovery and connectivity process, client and AP stations exchange information about their supported data rates. After the association, how do client and AP stations se...

As a station moves away from the access point to which it is associated, it changes its data rate from 600 Mbps to 540 Mbps and then to 450 Mbps. What IEEE 802.11 term is used to d...