CWAP-403 Exam Questions

You suspect an interfere may exist in a BSS that is experiencing sporadic problems. You want to identify and locate the device. The actual device identify is not known. What tool s...

During an initial install of a controller-based WLAN, the APs are not locating the WLAN controller. The controller is two router hops away from the nearest AP. DHCP is not used. Wh...

While troubleshooting DHCP issues, you perform a protocol capture in order to determine if the DNCP pool is depleted. The capture does not show DHCPnak messages. Where else could y...

You are troubleshooting problems with DHCP in relation to lightweight APs. They vendor class identifier (VCI) is not specified in the DHCP server. When you contact vendor support,...

As the WLAN administrator in your organization you are responsible for troubleshooting connection issues. Several STAs are connecting to the network, but are unable to communicate...

You are concerned with management overhead in your WLAN. When evaluating the network, you note that each dual-band AP provides for 4 SSIDs in each band with three secure SSIDs and...

You are considering disabling the data rates of 1, 2, 5.5 and 11 in the 2.4 GHz band. What advantage might this provide to the networks operating in this band?

As the WLAN engineer in your organization, you must troubleshoot performance problems related to co- channel interference (CCI). What is a good measurement of CCI impact in additio...

You are using a Wireless Aggregator utility to combine multiple packet captures. One capture exists for each of channels 1, 6 and 11. What kind of troubleshooting are you likely pe...

VoIP is used heavily in your organization. You must troubleshoot problems with dropped calls on the WLAN. What is a common cause of dropped calls when using Wi-Fi VoIP phones?

You are troubleshooting VoIP WLAN issues. When performing a PING to a remote device that would be involved in a call link, you see that the time value averages 220 milliseconds. Ho...

You are repairing a misconfiguration in WMM settings on an AP. The aCWmin and aCWmax values were all changed. What is the default aCWmax for AC_BK?

A new firmware has been released for the AP model you use in your WLAN. You have more than 120 of these APs installed. What is a good reason for applying a firmware update on an en...

Recently, three rogue APs have been connected to the network and later discovered. You want to prevent future rogue AP installations as much as possible. What is the first step to...

You are concerned about attackers gaining access to your WLAN from outside the facility. Why does reducing the output power on the APs not provide sufficient certainty that an atta...

Which one of the following should be the first step when troubleshooting a WLAN issue?

Which one of the best following is an advantage of using display filters instead of capture-time filters?

Using a portable analyzer you perform a packet capture next to a client STA and you can see that the STA is associated to a BSS. You observe the STA sending packets to the AP and t...

Given a protocol analyzer can decrypt WPA2-PSK data packets providing the PSK and SSID are configured in the analyzer software. When performing packet capture (in a non-FT environm...

When configuring a long term, forensic packet capture and saving all packets to disk which of the following is not a consideration?

You are performing a multiple adapter channel aggregation capture to troubleshoot a VoIP roaming problem and would like to measure the roaming time from the last VoIP packet sent o...

Protocol analyzers may present field values in either binary, decimal or hexadecimal. What precedes a hexadecimal value to indicate it is hexadecimal?

Which one of the these is the most important in the WLAN troubleshooting methodology among those listed?

The network administrator at ABC Engineering has taken a large packet capture from one of their APs running in monitor mode. She has very little knowledge of 802.11 protocols but w...

802.11k Neighbor Requests and Neighbor Reports are sent in what type of Management Frames?

Which one of the following is required for Wi-Fi integration in laptop-based Spectrum Analyzer software?

You're the WLAN administrator for a large retailer based at the HQ in New York. The London- based office has been complaining about WLAN disconnections around lunch time each day....

ABC International has installed a new smart ZigBee controlled lighting system. However, the network team is concerned that this new system will interface with the existing WLAN and...

In a Spectrum Analyzer the Swept Spectrogram plot displays what information?

You have installed a new 802.11ac WLAN configured with 80 MHz channels. Users in one area are complaining about poor performance. This area is currently served by a single AP. You...

Which common feature of a Spectrum Analyzer would be the best to help you locate a non- 802.11 interference source?

A manufacturing facility has installed a new automation system which incorporates an 802.11 wireless network. The automation system is controlled from tablet computers connected vi...

Finish the statement. It is possible to distinguish between _______and ______20 MHz transmissions when looking at an FFT plot.

What is the function of the PMD sub-layer?

What is the function of the PHY Preamble?

A PHY Header is added to the PSDU at which sub-layer?

Which one of the following portions of information is communicated in the PHY Header?

When performing protocol analysis, you capture an 802.11ac data frame on channel 52, transmitted at MSC 8. At what data rate was the PHY Preamble transmitted?

Which piece of information Is not transmitted in an HT PDDU header?

Given: The Frame Check Sequence (FCS) is a 32 CRC used for error detection. The CRC is calculated over what?

Where would you look in a packet trace file to identify the configured Minimum Basic Rate (MBR) of a BSS?

After examining a Beacon frame decode you see the SSID Element has a length of 0. What do you conclude about this frame?

A client is operating in an unstable RF environment. Out of five data frames transmitted to the client it only receives four. The client sends a Block Ack to acknowledge the receip...

In which element of a Beacon frame would you look to identify the current HT protection mode in which an AP is operating?

When a data frame is encrypted with WPA2, to which portion of the frame is the encryption applied?

In the 2.4 GHz band, what data rate are Probe Requests usually sent at from an unassociated STA?

You are troubleshooting a client that is experiencing slow WLAN performance. As part of the troubleshooting activity, you start a packet capture on your laptop close to the client...

The PLCP sublayer provides framing by adding a header to create what type of data unit?

What is the function of 802.11 Management frames?

Which one of the statements regarding the Frame Control field in an 802.11 MAC header is true?