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Wireless & Mobile Technologies Flashcards

7 cards from real IT and Technology practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Wireless & Mobile Technologies flashcards as text

  1. Which IEEE 802.11 standard is officially branded as Wi-Fi 6 by the Wi-Fi Alliance?

    Answer: 802.11ax

    IEEE 802.11ax was branded Wi-Fi 6 by the Wi-Fi Alliance, introducing OFDMA and improved efficiency over 802.11ac (Wi-Fi 5).

  2. What frequency band does Bluetooth Low Energy (BLE) operate on?

    Answer: 2.4 GHz

    BLE operates in the 2.4 GHz ISM band using 40 channels of 2 MHz each, sharing the band with classic Bluetooth and Wi-Fi.

  3. What does SSID stand for in wireless networking?

    Answer: Service Set Identifier

    SSID (Service Set Identifier) is the human-readable name that identifies a specific wireless network to clients scanning for access points.

  4. Which wireless security protocol uses TKIP encryption and was designed as a transitional replacement for WEP?

    Answer: WPA

    WPA (Wi-Fi Protected Access) succeeded WEP using TKIP encryption but has since been superseded by WPA2 and WPA3 due to TKIP vulnerabilities.

  5. What does MIMO technology provide in wireless networking?

    Answer: Increased throughput by using multiple antennas simultaneously

    MIMO (Multiple Input Multiple Output) uses multiple antennas to transmit and receive several data streams at once, significantly increasing wireless throughput.

  6. Which generation of cellular networks first introduced mobile broadband Internet access for smartphones?

    Answer: 3G (UMTS/HSPA)

    3G networks introduced mobile broadband, enabling smartphones to access the internet with speeds suitable for web browsing, email, and streaming.

  7. Which IEEE 802.11 standard, also known as WiGig, operates in the 60 GHz band to achieve multi-gigabit speeds over very short distances?

    Answer: 802.11ad

    IEEE 802.11ad (WiGig) operates at 60 GHz, delivering throughput up to 7 Gbps but with extremely limited range due to poor wall penetration at that frequency.