Skip to content
AvailabilitySign inBook a DemoJoin Waitlist
All CCNA topics

1.0 Network Infrastructure and Connectivity

Wireless Fundamentals Practice Questions

Updated for CCNA v2.0

802.11 operation, WLAN architecture, roaming, channels, and enterprise security.

Author-reviewed by LabFabric · 6 September 2026 · Report a content issue

One solved question, so you can see how these are marked

Which IEEE standard family defines Wi-Fi?

802.11

IEEE 802.11 defines wireless LAN technologies; 802.3 is Ethernet and 802.1Q is VLAN tagging.

Every question in the set below is marked like this. The answers stay hidden until you pick one.

Find related practice in the CCNA path
All 9 Wireless Fundamentals questions in this set

Answers and explanations appear when you work through the set above.

  1. What does an SSID identify?

    • A wireless network name
    • An AP radio MAC address
    • A VLAN tag
    • An encryption key

  2. What is the usual role of a lightweight access point in a controller-based WLAN?

    • Provide radio access while a WLC centralizes management and policy
    • Route between WAN sites
    • Assign public IP addresses
    • Replace a DHCP server

  3. Why are non-overlapping channels important in a WLAN design?

    • Distinct channels reduce adjacent-channel interference between nearby APs
    • They increase Ethernet MTU
    • They eliminate authentication
    • They allow all APs to use maximum power

  4. Which security approach is strongest for an enterprise WLAN with individual user credentials?

    • WPA2/WPA3-Enterprise with 802.1X
    • Open authentication
    • WEP
    • A shared SSID only

  5. What is a BSSID normally associated with?

    • The MAC address identifying a specific AP radio/basic service set
    • The network's DNS suffix
    • A client IP address
    • A VLAN native ID

  6. What is roaming in a wireless LAN?

    • A client transitioning its association from one AP to another
    • An AP changing its management IP
    • A controller rebooting
    • A switch moving a MAC address between VLANs

  7. Which band generally offers more non-overlapping channels than 2.4 GHz?

    • 5 GHz
    • 900 MHz
    • Bluetooth only
    • AM radio

  8. What does CAPWAP carry in a centrally switched Cisco controller-based WLAN?

    • A control and data tunnel between an AP and WLC
    • A Layer 2 loop-prevention protocol
    • A WAN routing protocol
    • A wireless encryption cipher

  9. Why should AP transmit power be planned instead of simply maximized?

    • Excessive power can increase interference and create poor roaming behavior
    • It disables WPA3
    • It changes the SSID
    • It prevents DHCP leases