Basics of Wireless networks and Wi-Fi MCQs

SSID stands for "Service Set Identifier" and is used to identify a wireless network.

802.11b operates in the 2.4 GHz frequency band.

Wi-Fi Direct enables direct communication between wireless devices without the need for a central access point.

WPA2 is considered the most secure wireless encryption protocol among these options.

A DHCP server assigns IP addresses dynamically to devices on a network.

In Wi-Fi networks, the star topology is commonly used, where all devices connect to a central access point.

LAN stands for "Local Area Network."

In a typical home network, the range of an average Wi-Fi signal is up to 100 feet.

A firewall is a security measure, not a security threat.

A router connects multiple networks together and directs traffic between them.

A dual-band Wi-Fi router offers a wider coverage area by operating on both 2.4 GHz and 5 GHz frequency bands.

802.11n introduced MIMO technology for improved performance.

A Wi-Fi access point connects wireless devices to a wired network.

Bluetooth is known for high-speed, short-range communication between devices.

MAC filtering in a Wi-Fi router restricts access based on device MAC addresses.

WPA3-Personal is a common Wi-Fi security protocol that uses a pre-shared key (PSK) for authentication.

WEP stands for "Wired Equivalent Privacy."

SSID Broadcast is the practice of broadcasting the network name.

The 5 GHz frequency band is typically less congested and offers faster Wi-Fi speeds.

The Wi-Fi Alliance certifies Wi-Fi devices for compatibility.

WAN (Wide Area Network) is designed to cover large geographic areas.

The maximum data transfer rate of a standard 802.11ac Wi-Fi connection is 1 Gbps.

WEP is considered the weakest encryption protocol and should be avoided for securing Wi-Fi networks.

LAN stands for "Local Area Network."

NFC (Near Field Communication) is used for short-range communication between devices.

IEEE 802.1X is used for user and device authentication in Wi-Fi networks.

WiMAX is commonly used for long-range outdoor point-to-point communication.

In its standard Class 2 configuration, Bluetooth has a range of up to 30 meters.

802.11ac introduced beamforming technology for improved signal strength and reliability.

A repeater is used to extend Wi-Fi coverage by amplifying and retransmitting signals.

WPA stands for "Wi-Fi Protected Access."

802.11ac operates in both the 2.4 GHz and 5 GHz frequency bands.

A Wi-Fi firewall is used to filter and block unwanted network traffic.

Zigbee is commonly used for low-power, short-range IoT communication.

MU-MIMO stands for "Multi-User Multiple Input, Multiple Output."

A gateway in a wireless network provides internet access.

NFC (Near Field Communication) is commonly used for secure access to buildings and devices.

A mesh network extends Wi-Fi coverage and reliability by using multiple interconnected devices.

Zigbee is commonly used for low-power, short-range communication in such applications.

The SSID is used to identify and distinguish the Wi-Fi network.

4G LTE is commonly used for high-speed, long-range internet connectivity in such areas.

NFC typically has a range of up to 1 meter for secure transactions.

802.11e introduced Quality of Service (QoS) for prioritizing network traffic.

Zigbee is commonly used for connecting smart home devices.

A wireless bridge connects wired and wireless networks.

A Wireless Access Point (WAP) extends Wi-Fi coverage and provides connectivity to wired networks.

Bluetooth is commonly used for communication between smartphones and car infotainment systems.

The WPS button simplifies the process of connecting devices to the Wi-Fi network.

802.11n is known for its backward compatibility with older Wi-Fi standards.

The "Channel" setting in a Wi-Fi network determines the frequency on which the network operates.