CWNA-109 Exam Questions
124 real CWNA-109 exam questions with expert-verified answers and explanations. Page 2 of 3.
- Question #52Wireless LAN (WLAN) Hardware and Software
When a STA has authenticated to an AP (AP-1), but still maintains a connection with another AP (AP-2), what is the state of the STA on AP-1?
802.11 state machineauthentication statesassociationBSS roaming - Question #53WLAN Security
A string of characters and digits is entered into an AP and a client STA for WPA2 security. The string is 8 characters long. What is this string called?
WPA2passphrasePSKpre-shared key - Question #54Radio Frequency (RF) Fundamentals
When considering data rates available in HT and VHT PHY devices, in addition to the modulation, coding, channel width, and spatial streams, what impacts the data rate according to...
MCSguard intervaldata rateMIMO - Question #55Wireless Standards and Organizations
Which one of the following channels can be used for VHT transmissions according to the 802.11 specification?
VHT5 GHz channels802.11acchannel numbering - Question #56Wireless LAN (WLAN) Hardware and Software
In a mesh BSS (MBSS), according to the 802.11 standard, what device connect the mesh to an Ethernet network?
mesh BSSmesh portal802.11sEthernet connectivity - Question #57Network Design, Installation, and Management
What statement about 802.11 WLAN bridges is true?
WLAN bridgesSNRpoint-to-point linkslink quality - Question #58WLAN Security
What security option for 802.11 networks supports SAE and requires protected management frames?
WPA3SAEprotected management frames802.11w - Question #59Wireless LAN (WLAN) Hardware and Software
An AP is advertised as a tri-band, 4x4:4, Wi-Fi 6, 802.11ax AP. Based on this information and assuming it is correctly advertised, what can be determined as certainly true about th...
MIMOradio chainsWi-Fi 6802.11ax - Question #60Network Design, Installation, and Management
A natural disaster has occurred in a remote area that is approximately 57 miles from the response team headquarters. The response team must implement a local wireless network using...
network backhaulcellular connectivitydisaster recoveryWAN - Question #61Wireless Standards and Organizations
Which one of the following 802.11 PHYs is more likely to be used in an industrial deployment but not likely to be used in standard office deployments?
S1G802.11ahindustrial WLANsub-GHz - Question #62Wireless LAN (WLAN) Hardware and Software
You must plan for POE in an office environment. Which one of these devices is least likely to be a POE PSE?
PoEPSEPDmidspan injector - Question #63Wireless LAN (WLAN) Hardware and Software
A POE device requires 47 W of power. What POE specification should be used?
PoE802.3bt802.3atpower budget - Question #64Network Design, Installation, and Management
What statement about 802.11 WLAN performance is true?
WLAN performancedata forwardingcentralized architecturedistributed architecture - Question #65Wireless LAN (WLAN) Hardware and Software
In which plane of the three networking planes is an access point configured by a WLAN controller?
WLAN controllermanagement planecontrol planenetwork architecture - Question #66Radio Frequency (RF) Fundamentals
You are installing an AP to be used by 27 laptops. All laptops will connect on the 5 GHz frequency band. A neighbor network uses channels 1 and 6. What channel should be used for t...
5 GHz bandchannel selection2.4 GHz channelsfrequency bands - Question #67Radio Frequency (RF) Fundamentals
Three access points are used within a facility. One access point is on channel 11 and the other two are on channel 1. The two access points using channel 1 are on either side of th...
CCIco-channel interferencechannel planningclient transmissions - Question #68Wireless Standards and Organizations
What feature of 802.1 lax (HE) is managed with beacon and trigger frames and is primarily a power management method, but also provides more efficient access to the channel used wit...
802.11axTWTTarget Wake Timepower management - Question #69WLAN Security
What common feature of MDM solutions can be used to protect enterprise data on mobile devices?
MDMcontainerizationmobile securityenterprise data protection - Question #70Network Design, Installation, and Management
You support a WLAN using dual-band 802.11ac three stream access points. All access points have both the 2.4 GHz and 5 GHz radios enabled and use 40 MHz channels in 5 GHz and 20 MHz...
802.11acthroughputEthernet uplinkdynamic rates - Question #71Troubleshooting
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....
controller discoveryDNSAP provisioningDHCP - Question #72WLAN Security
What is an advantage of using WPA3-Personal instead of WPA2-Personal as a security solution for 802.11 networks?
WPA3-PersonalSAEWPA2-Personalauthentication exchange - Question #73WLAN Security
What authentication method is referenced in the 802.11-2016 and 802.11-2020 specifications and is recommended for robust WI-AN client security?
802.1X/EAPauthenticationRSNA802.11 standard - Question #74WLAN Security
What security solution is required to be used in place of Open System Authentication for all open network 802.11 implementations in the 6 GHz band?
OWE6 GHz bandopen networkWPA3 - Question #75WLAN Security
What terms accurately complete the following sentence? The IEEE 802.11-2016 standard specifies mandatory support of the _______________ cipher suite for Robust Security Network Ass...
CCMPTKIPRSNAcipher suite - Question #76WLAN Security
XYZ Company has decided to install an 802.11 WLAN system that will support 1083 wireless users, but they are concerned about network security. XYZ is interested in deploying standa...
802.11r802.11wfast secure roamingmanagement frame protection - Question #77Troubleshooting
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...
WLAN scannersite survey toolsprotocol analyzerspectrum analyzer - Question #78Network Design, Installation, and Management
Your consulting firm has recently been hired to complete a site survey for a company desiring an indoor coverage WI-AN. Your engineers use predictive design software for the task,...
site surveypredictive designbuilding materialsfloor plan validation - Question #79Wireless Standards and Organizations
What feature of 802.1 lax (HE) may impact design decisions related to AP placement and the spacing between same-channel BSS cells (3SAs) because it is designed to reduce overlappin...
BSS Color802.11axOBSSAP placement - Question #80Radio Frequency (RF) Fundamentals
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 ch...
ACIadjacent channel interferencechannel overlapCCI - Question #81Wireless Standards and Organizations
What frame type is used to reserve the wireless medium for the transmission of high data rate frames that may not be understood by all clients connected to the BSS?
RTSmedium reservationprotection mechanismframe types - Question #82Network Design, Installation, and Management
ABC Company is planning to install a new 802.11ac WLAN, but wants to upgrade its wired infrastructure first to provide the best user experience possible. ABC Company has hired you...
PoE power budgetedge switchesVoIPAP deployment - Question #83Wireless Standards and Organizations
802.11ax (HE) introduces Resource Units that can be used to allow communications with multiple devices at the same time, on the same channel, in the same BSS. What feature of 802.1...
802.11axOFDMAresource unitsHE PHY - Question #84Troubleshooting
You are a small business wireless network consultant and provide WLAN services for various companies. You receive a call from one of your customers stating that their laptop comput...
co-channel interferencechannel overlapWLAN performancemulti-tenant - Question #85Network Design, Installation, and Management
You are deploying a WLAN monitoring solution that utilizes distributed sensor devices. Where should sensors be deployed for best results? Choose the single best answer.
WLAN monitoringsensor placementsite surveycoverage areas - Question #86Troubleshooting
When using a spectrum to look for non Wi-Fi interference sources, you notice significant interference across the entire 2.4 GHz band (not on a few select frequencies) within the de...
USB 3 interferencespectrum analysis2.4 GHznon-Wi-Fi interference - Question #87Radio Frequency (RF) Fundamentals
You are reporting on the RF environment in your facility. The manager asks you to describe the noise floor noted in the report. Which of the following is the best explanation?
noise floorRF environmentunintentional radiatorsinterference - Question #88Radio Frequency (RF) Fundamentals
You are attempting to explain RF shadow and how it can cause lack of coverage. What common building item frequently causes RF shadow and must be accounted for in coverage plans?
RF shadowRF obstructionelevatorscoverage planning - Question #89Troubleshooting
You administer a small WLAN with nine access point. As a small business, you do not rum a RADIUS server and use WPA2-Personal for security. Recently, you changed the passphrase for...
WPA2-Personalpassphraseclient configurationWLAN security - Question #90Troubleshooting
You recently purchased four laptops containing dual-band 802.11ac adapters. The laptops can connect to your 2.4 GHz network, but they cannot connect to the 5 GHz network. The lapto...
dual-band5 GHz connectivityWLAN driversSSID visibility - Question #91Troubleshooting
You administer a WLAN that offers a guest SSID of GUESTNWORK. Users connect to the GUESTNWORK SSID, but report that they cannot browse the Internet. The devices simply report no In...
captive portalguest SSIDinternet accessIP routing - Question #92Radio Frequency (RF) Fundamentals
An RF signal sometimes bends as it passes through a material rather than around an obstacle. What is the RF behavior that this statement best describes?
refractionRF propagationRF behaviorsignal bending - Question #93Antennas
What can cause excessive VSWR in RF cables used to connect a radio to an antenna?
VSWRimpedance mismatchRF cablesantenna connection - Question #94Troubleshooting
You are troubleshooting a problem with a new 802.11ax AP. While the AP supports four spatial streams, most clients are only achieving maximum data rates of 150 Mbps. What is the li...
802.11axspatial streamsdata rates802.11n backward compatibility - Question #95Wireless Standards and Organizations
You have implemented an 802.11ax WLAN for a customer. All APs are four stream HE APs. The customer states that it is essential that most of the clients can use the OFDMA modulation...
802.11axOFDMAclient requirementsHE PHY - Question #96Wireless Standards and Organizations
Which IEEE 802.11 physical layer (PHY) specification includes support for operation in the 2.4 GHz, 5 GHz, and 6 GHz bands?
802.11axHE PHYfrequency bands6 GHz - Question #97Network Design, Installation, and Management
What cause of hidden nodes within a BSS would be more likely lead to an increase in collisions and retries?
hidden nodeAP transmit powercollisionsBSS coverage - Question #98Network Design, Installation, and Management
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...
site surveyRF interferenceelevator shaftsmicrowave ovens - Question #99Wireless Standards and Organizations
What feature was introduced in the 802.11h amendment in order to uphold regulatory requirements for 5 GHz operations.
802.11htransmit power control5 GHz regulatoryDFS - Question #100Radio Frequency (RF) Fundamentals
An RF signal sometimes bends as it passes through some material other than free space. What is the term that describes this behavior?
refractionRF propagationRF behaviorsignal bending - Question #101Antennas
What can an impedance mismatch in the RF cables and connectors cause?
VSWRimpedance mismatchRF cablesconnectors