CWNA-108 Exam Questions

What cause of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries?

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?

You are using a site survey tool for post-implementation validation. You have installed the appropriate adapter driver and imported a floor plan. Now, you want to take the next ste...

When implementing PoE, what role is played by a switch?

You are implementing a VHT-capable AP. Which one of the following channels is available in the 802.11-2016 standard, which was not available before the ratification of 802.11ac?

What statement about the SSID is true?

You are troubleshooting a WLAN problem and you suspect hidden node as the cause. What should you look for in a protocol analyzers?

As you prepare for a site survey in a multi-floor corporate office, you have learned about several wireless devices that support connection-oriented, real-time applications. These...

What feature was introduced in the 802.11h amendment in order to uphold regulatory requirements for 5 GHz operations.

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 5 GHz radios. Some semi- directional ant...

You are using a tool that allows you to see signal strength for all APs in the area with a visual representation. It shows you SSIDs available and the security settings for each SS...

What best describes WPA2 in relation to 802.11 wireless network?

You are troubleshooting a client issue on a Windows laptop. The laptop can see and connect to 2.4 GHz APs, but it does not even see 5 GHz APs. While evaluating the issue, you deter...

An IEEE 802.11 amendment is in the draft state. What impact does this draft amendment have on the 802.11 standard?

What can an impedance mismatch In the RF cables and connectors cause?

You manage a WLAN with 100 802.11ac access points. All access points are configured to use 80 MHz channels. In a particular BSS, only 40 MHz communications are seen. What is the li...

What item is essential for performing a manual RF site survey for a warehouse facility?

Option 43 must be configured to allow access points to locate controller. In what network service should this option be configured?

A WLAN is implemented using wireless controllers. The Aps must locate the controllers when powered on and connected to the network. Which one of the following methods is commonly u...

What statement about 802.3. Clause 33 Power over Ethernet is true?

What cipher suite is specified by the 802.11-2016 standard and is not deprecated?

You are onsite with a client to perform a post-deployment site survey. When verifying a multiple channel VoWiFi deployment using a VoWiFi handset, which aspect is most important?

What 802.11 network configuration would result in multiple stations broadcasting Beacon frames with the same BSSID but with different source addresses?

ABC Company is planning a point-to-multipoint outdoor bridge deployment with standalone (autonomous) 802.11 bridge units. 802.1X/EAP will be used for bridge authentication. A Linux...

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

When an ACK frame is not received by the transmitting STA, what is assumed?

An RF signal sometimes bends as it passes through some material other than free space. What is the term that describe this behavior?

Which one of the following is not a factor considered when calculating the Link Budget for an outdoor point-to-point WLAN bridge link?

You are reconfiguring an AP to use the short guard Interval. How long will the new guard interval duration be after the change?

Which IEEE 802.11 physical layer (PHY) specifications include support for and compatibility with both ERP and HR/DSSS?

Lynne runs a small hotel, and as a value added service for her customers she has implemented a Wi-Fi hot-spot. Lynne has read news articles about how hackers wait at hot- spots try...

In a long-distance RF link, what statement about Fade Margin is true?

You are being interviewed by ABC Company for employment as a wireless site survey expert. The interviewing manager asks you what items should be included in a site survey report ge...

You are tasked with performing a throughput test on the WLAN. The manager asks that you use open source tools to reduce costs. What open source tool is designed to perform a throug...

The IEEE 802.11-2012 standard requires VHT capable devices to be backward compatible with devices using which other 802.11 physical layer specification (PHY)?

What answer correctly completes the following sentence? ____________ and physical carrier sense functions are used to determine if the wireless medium is busy.

What factors does not influence the distance at which an RF signal can be effectively received?

A company has hired you to perform a pre-deployment site survey of their facility. During an interview, the network manager informs you that the new wireless network must use 5 GHz...

What factor is likely to cause the least impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS?

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?

In addition to coverage analysis results, what should be included in a post-deployment site survey report to ensure WLAN users experience acceptable performance?

Which one of the following frequency ranges is not specified for use by IEEE 802.11 radios as of 802.11-2012?

You are managing a wireless access point in autonomous mode using the Web based interface. You capture traffic during this management task and notice that you can see the HTML code...

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?

Which directional antenna types are commonly used by indoor Wi-Fi devices in a MIMO multiple spatial stream implementation?

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 s...

You are implementing a multi-AP WLAN and fast secure roaming is essential. Which one of the following methods is an IEEE 802.11 standard method for fast roaming?

You are troubleshooting a controller-based AP that is unable to locate the controller. DHCP is not use and the controller is located at 10.10.10.81/24 while the AP is on the 10.10....

A client complains of low data rates on his computer. When you evaluate the situation, you see that the signal strength is -84 dBm and the noise floor is -96 dBm. The client is an...

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 a...