Wireless Networking Technologies

A company deploys a new 802.11ac access point in a warehouse. After installation, workers report that their handheld scanners frequently disconnect when moving between aisles. The AP is mounted on a high ceiling. Which configuration change would most likely improve connectivity?

During a site survey for a new branch office, you measure signal strength in the conference room and find it is -85 dBm. The client devices require at least -67 dBm for reliable video conferencing. Which action is most appropriate?

A small office uses a legacy 2.4 GHz wireless b/g router. Employees report frequent disconnects and slow speeds, especially when the microwave is used in the break room. Which change would most directly reduce interference in this scenario?

A technician is deploying a point-to-point wireless bridge between two buildings 500 meters apart. The link must support at least 1 Gbps throughput. Both buildings have clear line of sight. Which antenna type and frequency combination is most appropriate?

A user's laptop connects to the office Wi-Fi but cannot access the internet. Other devices on the same network work fine. The laptop's IP address is 169.254.25.14. What is the most likely cause?

A technician is troubleshooting a home network where the 5 GHz band works fine, but the 2.4 GHz band is extremely slow and drops connections. The router is placed near a cordless phone base station. Which type of interference is most likely occurring?

A large conference center needs to provide Wi-Fi for 500 attendees. The IT team installs multiple 802.11ax access points. During the event, attendees report slow speeds and frequent reconnections. Analysis shows many clients are on the same channel despite multiple APs. Which advanced feature should be configured to distribute clients more evenly?

A user reports that their laptop can see several neighboring Wi-Fi networks but cannot see their own office's SSID, which is a 5 GHz-only network. Other users in the same office can connect without issue. What is the most likely cause?

A technician is configuring a new wireless network for a small business. The owner wants to ensure that only company-issued laptops can connect, and that data is encrypted. The laptops support WPA2-Enterprise. Which authentication method should be used?

A customer wants to set up a home network that supports the fastest possible speeds for streaming 4K video and gaming, with support for multiple devices. They have a cable modem that supports up to 1 Gbps. Which wireless standard should you recommend for the new router?

A small business has a single access point that supports both 2.4 GHz and 5 GHz. Employees report that their smartphones connect to the 2.4 GHz band, causing slow internet speeds. Which configuration change should the technician make to prioritize 5 GHz for capable devices?

A technician is troubleshooting a wireless network where users report intermittent connectivity and slow speeds. A spectrum analyzer shows high noise levels on the 2.4 GHz band from non-Wi-Fi sources. Which of the following is the MOST effective long-term solution?

A company deploys a new 802.11ax (Wi-Fi 6) access point to support high-density environments. Some older laptops with 802.11ac adapters cannot connect, while newer Wi-Fi 6 laptops work fine. The SSID is broadcast and security is set to WPA2. What is the MOST likely cause?

A small office experiences intermittent Wi-Fi drops on laptops but not on desktops connected via Ethernet. The wireless network uses 2.4 GHz. Which of the following is the MOST likely cause?

A technician is setting up a wireless network for a home office that requires the fastest possible speeds for streaming 4K video. The router supports 802.11ac and has three antennas. Which configuration will yield the highest throughput?

During a site survey, a technician finds that a new access point on the 2.4 GHz band is experiencing heavy interference. The access point automatically selected channel 6. Which action should the technician take to minimize interference?

A client reports that their 5 GHz Wi-Fi connection works fine near the access point but drops out completely when they move to the next room, which has thick concrete walls. The 2.4 GHz band works throughout the house. Which of the following is the BEST solution?

A technician is deploying a wireless network in a large warehouse and needs to ensure seamless roaming for handheld scanners as workers move between access points. Which technology should the technician configure to support this requirement?

A user complains that their laptop frequently disconnects from the Wi-Fi when they move to the conference room, which is 50 feet from the access point through two walls. The network uses 5 GHz. What is the MOST likely cause of the disconnects?

A client reports that their new 802.11ac laptop cannot connect to the office Wi-Fi, while older 802.11n devices work fine. The access point is a dual-band model. Which of the following is the MOST likely reason?

A customer reports that their laptop frequently disconnects from the Wi-Fi in their home office, but works fine in other rooms. The office is located in a detached garage, and the wireless router is in the main house. Which wireless networking technology would best solve this issue without running cables?

A small business owner wants to set up a guest Wi-Fi network that is isolated from the main corporate network to prevent unauthorized access to sensitive data. The wireless router supports multiple SSIDs. Which configuration should be applied to achieve this isolation?

A customer reports that their wireless printer stops responding when the microwave is in use. The printer is connected via Wi-Fi to a dual-band router. Which troubleshooting step should the technician take first to resolve this issue?

A user’s laptop connects to the corporate Wi-Fi but cannot access the internet. Other devices on the same SSID work fine. The technician checks the laptop’s IP configuration and sees an IPv4 address of 169.254.12.34. What is the most likely cause of this issue?

A technician is setting up a wireless network for a small office that experiences heavy interference from neighboring businesses. The office uses many Bluetooth devices and cordless phones. Which 802.11 standard and frequency combination would minimize interference and provide the best performance?

A technician is deploying a wireless network in a large warehouse with metal shelving. The goal is to provide seamless roaming for handheld scanners. Which technology should the technician implement to ensure clients quickly switch between access points without dropping connections?

A technician is troubleshooting a wireless network where users experience intermittent drops during peak hours. The access point is an 802.11n model operating on 2.4 GHz. The technician suspects channel congestion. Which tool should the technician use to identify the least congested channel?

A technician is configuring a wireless network for a high-density environment such as a conference hall. The network must support hundreds of simultaneous connections with minimal interference. Which configuration will best achieve this?

A user complains that their new laptop only sees 2.4 GHz Wi-Fi networks, not the 5 GHz network that was previously visible on their old phone. The router is dual-band and configured to broadcast both bands. What is the most likely reason the laptop cannot see the 5 GHz network?

A customer calls to say their new smart TV can see the 2.4 GHz network but not the 5 GHz network, even though the router is dual-band. The technician checks the router settings and confirms both bands are enabled and broadcasting. What is the most likely reason the TV cannot see the 5 GHz network?