Wireless Network Fundamentals and Standards NDE Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   Which IEEE 802.11 standard was the first to operate in the 5 GHz band and offer data rates up to 54 Mbps?

   • A802.11n
   • B802.11g
   • C802.11b
   • D802.11a
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A security auditor is reviewing a small business's wireless network. The network uses WPA2-Personal with a weak passphrase. The auditor recommends upgrading to WPA3. What is the primary security improvement that WPA3 provides over WPA2-Personal?

   • AIt uses a longer pre-shared key that is impossible to guess.
   • BIt encrypts all traffic with AES-256, making it unbreakable.
   • CIt provides forward secrecy and protects against offline dictionary attacks.
   • DIt hides the SSID and prevents unauthorized access.
   Reveal Solution Discussion Select an answer first
4. 28expert · hard

   A network administrator is planning a Wi-Fi network for a large warehouse with high ceilings and metal racks. They need to provide reliable coverage for handheld scanners. What is the most important consideration?

   • AUsing a single access point with a high-gain antenna.
   • BPlacing access points at lower heights and using multiple units.
   • CUsing 2.4 GHz only to penetrate the metal racks better.
   • DUsing a mesh network with wireless backhaul.
   Reveal Solution Discussion Select an answer first
5. 29expert · hard

   A company is planning to deploy a wireless network in a large office with multiple floors. The IT team wants to use 802.11ax (Wi-Fi 6) to support many devices. However, the budget is limited, and the team must choose between fewer high-end APs or more mid-range APs. Which consideration is most important for maximizing capacity and coverage?

   • ADeploy more APs with lower transmit power to reduce co-channel interference and increase overall capacity.
   • BDeploy APs on 2.4 GHz only to maximize range and penetration.
   • CDeploy fewer APs with maximum transmit power to cover the entire building with strong signals.
   • DDeploy APs with 80 MHz channels on 5 GHz and use maximum power.
   Reveal Solution Discussion Select an answer first
6. 30application · medium

   A network administrator is planning a Wi-Fi deployment in a large office. They notice that the 2.4 GHz band is very congested with many neighboring networks. What is the best strategy to improve performance for their users?

   • AUse only the 5 GHz band, which has more available channels and less interference.
   • BUse only the 2.4 GHz band with a single channel.
   • CIncrease the transmit power of the access point to overcome interference.
   • DEnable dual-band operation and encourage 5 GHz-capable devices to use 5 GHz.
   Reveal Solution Discussion Select an answer first