Wireless Network Fundamentals and Standards NDE Practice Questions (Page 8)

Questions 36–40

1. 36application · medium

   A rural clinic needs to provide internet access to a nearby building 200 meters away. There is no wired connection between the buildings, but there is line-of-sight. The clinic wants to extend its existing LAN to the other building. Which wireless topology should be used?

   • AA single access point in the clinic with high-gain antenna.
   • BA point-to-point wireless bridge using directional antennas.
   • CA mesh network with multiple omnidirectional access points.
   • DAn ad-hoc network between a laptop in each building.
   Reveal Solution Discussion Select an answer first
2. 37expert · hard

   A network administrator is designing a Wi-Fi network for a hospital. The environment has many metal cabinets and medical equipment that can interfere with signals. They need to ensure reliable connectivity for critical devices. What is the best approach?

   • AUse a single high-power access point in the center of the hospital.
   • BUse a mesh network with wireless backhaul.
   • CDeploy multiple access points with lower power and careful channel planning.
   • DUse only 2.4 GHz to penetrate walls better.
   Reveal Solution Discussion Select an answer first
4. 38expert · hard

   A network engineer is troubleshooting a Wi-Fi network in a large warehouse. Users report intermittent connectivity and slow speeds. The engineer suspects multipath interference caused by metal racks. Which action would best mitigate multipath interference?

   • ASwitch all access points to 2.4 GHz to improve penetration.
   • BUse a single omnidirectional antenna on each access point to simplify the signal.
   • CReduce the transmit power of all access points to minimize reflections.
   • DDeploy access points with multiple antennas and enable MIMO technology.
   Reveal Solution Discussion Select an answer first
5. 39application · medium

   A network administrator is troubleshooting weak Wi-Fi signals in a warehouse. The access point is mounted on a metal beam, and employees report intermittent connectivity in certain aisles. What is the most likely cause of the signal issues?

   • AThe access point is configured for 5 GHz only, which has shorter range.
   • BThe metal beam is absorbing and reflecting the radio waves, creating dead zones.
   • CThe access point is using an outdated 802.11b standard.
   • DThe access point is using too low a transmit power setting.
   Reveal Solution Discussion Select an answer first
6. 40application · medium

   A network technician is troubleshooting a Wi-Fi dead zone in a warehouse. The warehouse has tall metal racks and concrete walls. The technician notices that 2.4 GHz signals penetrate better than 5 GHz, but the 5 GHz band has less interference. Which action would most effectively improve coverage while minimizing interference?

   • AReplace all access points with high-gain directional antennas pointing at the dead zone.
   • BUse only 2.4 GHz access points because of better penetration, and accept the interference.
   • CDeploy additional access points operating on 5 GHz with lower transmit power to reduce co-channel interference.
   • DInstall dual-band access points and enable band steering to push capable clients to 5 GHz while allowing legacy devices on 2.4 GHz.
   Reveal Solution Discussion Select an answer first