A customer is acquiring a new VoWLAN system to replace their existing wired phone system. When reading about his system’s requirements, you learned that is requires 25 db of SNR to work as expected. After surveying the environment, you discovered that the noise floor is -88 dBm. What should be the minimum RSSI value to […]

During an RFP analysis, one of the vendors mentioned that you’ll need to upgrade your Gigabit Ethernet switches to MultiGig switches to ensure support for 802.11ac and 802.11ax, which both offer data rates over 1Gbps. Why is this not sound advice? A. Because neither of the technologies support data rates over 1Gbps B. Because 802.11ax […]

You and 10 other people are connected to a public hotspot. You issue a ping sweep on the network, but you can’t find any devices on the same subnet as yours. What feature might be enabled on the WLAN infrastructure that is preventing you from communicating with other devices on that subnet? A. Peer-to-peer blocking […]

An engineering firm just upgraded their WLAN form nine 802.11n APS to nine 802.11ac APs. After this upgrade, they did not see any improvement in throughput. What is the most likely cause of this result? A. APs are transmitting at a low transmit power B. The clients were not upgraded C. APs are mounted on […]

A museum wants to offer Wi-Fi to its visitors. One of their requirements is to have the APs blend into the design of the museum. What should you do to meet this requirement? A. Lock the AP inside of a metal box B. Place the APs in between walls and I-beams C. Use an 802.11b […]

A business traveler from North America is in Europe. The hotel only provides coverage in 2.4 GHz. The traveler connects to the hotel’s SSID and notices an AP in the hotel room. However, the laptop reports a very low RSSI when connected. The traveler does not have the same problem when connecting in the lobby. […]

You are conducting a physical site survey where heavy machinery is repaired. What is a common item required specifically for this type of survey? A. Personal Protective Equipment (PPE) B. Low gain antennas C. Low power APs D. Indoor APs

A company wants to connect its headquarters to its remote office that is 13 kilometers away using a wireless bridge. What requirement must not be forgotten by their Wireless Engineer when considering the Fresnel Zone? A. Earth bulge B. Antenna gain C. FSPL D. Receive sensitivity Reference: http://www.zytrax.com/tech/wireless/fresnel.htm

Your customer is using PSK as their only authentication. They have an industry requirement to move to a stronger solution. Your recommendation is to move to a certificate-based type of authentication where both the client and server require certificates. Which EAP type would be the best fit? A. EAP-FAST B. EAP-TTLS C. EAP-TLS D. PEAP […]

What metric implements the simplest algorithm and lowest accuracy in networks requiring locations? A. Angle of Arrival (AoA) B. Time of Arrival (ToA) C. Time Difference of Arrival (TDoA) D. Received Signal Strength Indicator (RSSI) Reference: https://www.ijert.org/research/different-approaches-of-angle-of-arrival-techniques-in-wireless-sensor-networks-IJERTV2IS2346.pdf