Free Certified Wireless Technology Specialist (CWTS) Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Certified Wireless Technology Specialist (CWTS) practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1Which RF signal characteristic describes how fast the signal repeats?

   1. A. Amplitude
   2. B. Frequency
   3. C. Phase
   4. D. Wavelength

   Answer: B

   Explanation: EXFO defines "Frequency(how fast the signal repeats)". Frequency describes the repetition rate, rather than the signal power, its position in time, or the distance occupied by a cycle.

   Reference: Radio frequency (RF) signals — EXFO Glossary — What is a radio frequency (RF) signal? — parameter list

2. 2A desktop computer has an Ethernet interface but no wireless network adapter. What hardware capability must be added before it can join a Wi-Fi WLAN directly?

   1. A. A second Ethernet interface
   2. B. A compatible wireless network adapter
   3. C. A higher-speed Ethernet cable
   4. D. A cellular modem without Wi-Fi

   Answer: B

   Explanation: Microsoft states, "To connect your portable or desktop device to your wireless network, it must have a wireless network adapter." An Ethernet interface or cellular-only modem cannot provide the required IEEE 802.11 radio connection.

   Reference: Setting up a wireless network in Windows — What you need to set up a wireless network — Wireless network adapter

3. 3Which additional frequency band distinguishes Wi-Fi 6E AP capability from a Wi-Fi 6 AP limited to the earlier 2.4- and 5-GHz bands?

   1. A. 900 MHz
   2. B. 60 GHz
   3. C. 6 GHz
   4. D. 3.5 GHz

   Answer: C

   Explanation: Cisco states, "Wi-Fi at 6 GHz is referred to by the Wi-Fi Alliance as Wi-Fi 6E". The extension adds 6-GHz operation. The other bands do not identify the Wi-Fi 6E extension.

   Reference: Wireless RF Reference Guide — Wi-Fi 6-GHz overview

4. 4Which authentication method does WPA3-Personal use to authenticate a wireless client?

   1. A. WEP Shared Key authentication
   2. B. EAP-MD5 authentication
   3. C. Simultaneous Authentication of Equals
   4. D. MAC-address-only authentication

   Answer: C

   Explanation: Meraki identifies "WPA3-Personal, which uses the Simultaneous Authentication of Equals (SAE) method for personal security networks." SAE is its password-based authentication method. WEP Shared Key, EAP-MD5, and MAC-only admission are different mechanisms.

   Reference: WPA3 Encryption and Configuration Guide — Supported WPA3 Modes

5. 5A Windows 11 laptop's Wi-Fi adapter is present in Device Manager but is disabled. Which action directly restores its enabled state?

   1. A. Change only the adapter's preferred frequency band.
   2. B. Disable the adapter's high-throughput mode.
   3. C. Select Enable device for the Wi-Fi adapter.
   4. D. Remove the WLAN's saved security profile.

   Answer: C

   Explanation: Microsoft instructs, "Right-click your Wi-Fi adapter and select Enable device." The diagnosed condition is a disabled adapter. Changing a band, disabling a PHY mode, or deleting a profile does not directly enable the adapter.

   Reference: Fix Wi-Fi connection issues in Windows — Wi-Fi option or networks unavailable — Enable Wi-Fi Adapter

6. 6Which RF characteristic describes the signal magnitude associated with how much power it carries?

   1. A. Its phase, representing relative timing.
   2. B. Its wavelength, representing spatial cycle length.
   3. C. Its frequency, representing repetition rate.
   4. D. Its amplitude, representing signal magnitude.

   Answer: D

   Explanation: EXFO identifies "Amplitude(will tell how much power the signal carries)". This is the magnitude characteristic; phase concerns position in time, frequency concerns repetition rate, and wavelength concerns spatial length.

   Reference: Radio frequency (RF) signals — EXFO Glossary — What is a radio frequency (RF) signal? — parameter list

7. 7With a supported carrier plan, what capability does an iPhone's Personal Hotspot provide to a nearby Wi-Fi laptop?

   1. A. It extends a nearby WLAN using that WLAN as its uplink.
   2. B. It uses the laptop's internet uplink while the iPhone joins as a client.
   3. C. It creates a local Wi-Fi network without sharing any internet connection.
   4. D. It shares the iPhone's cellular internet connection over Wi-Fi.

   Answer: D

   Explanation: Apple states, "Personal Hotspot uses the cellular data connection of an iPhone or iPad (Wi-Fi + Cellular) to create a temporary, portable Wi-Fi network that other devices can use to connect to the internet." The iPhone supplies the cellular uplink and the laptop is the Wi-Fi client. This is not WLAN repeating, a reversed laptop-host role, or merely a local network without internet sharing.

   Reference: Connect to the Personal Hotspot of an iPhone or iPad — Introduction

8. 8What does simultaneous dual-band operation mean for an AP equipped with separate 2.4- and 5-GHz radios?

   1. A. It can serve both bands at the same time.
   2. B. It must disable one band before serving the other.
   3. C. It needs each client to use both bands for one association.
   4. D. It dedicates one band to transmit and the other to receive.

   Answer: A

   Explanation: Cisco describes a dual-band AP with "eight radios (four radios in each band)" for 2.4 and 5 GHz. Separate radios permit simultaneous service. A client may join one supported band; the AP does not need to disable the other band or split transmit and receive across the two bands.

   Reference: Wireless RF Reference Guide — Antennas: Solving multipath distortion (Wi-Fi 4 through 6E), Figure 14 discussion

9. 9A WLAN specification calls for WPA3 security using 802.1X authentication through a RADIUS server. Which security mode matches that requirement?

   1. A. WPA3-Enterprise
   2. B. WPA3-Personal
   3. C. Enhanced Open (OWE)
   4. D. WEP Shared Key

   Answer: A

   Explanation: Meraki states, "WPA3-Enterprise, for 802.1X security networks." Its Enterprise configuration uses the RADIUS server. Personal uses SAE, OWE provides unauthenticated encryption, and WEP Shared Key is a legacy WEP mechanism rather than the specified Enterprise mode.

   Reference: WPA3 Encryption and Configuration Guide — Supported WPA3 Modes

10. 10A Windows Wi-Fi client configured for automatic IPv4 addressing shows 169.254.22.40 instead of an address from the WLAN's DHCP pool. What does this indicate?

    1. A. Windows did not obtain an IP address from the router.
    2. B. Windows obtained a normal DHCP lease but only DNS resolution failed.
    3. C. Windows received the router's public internet-facing IPv4 address.
    4. D. The address confirms that the WLAN's default gateway is reachable.

    Answer: A

    Explanation: Microsoft states that an address like "169.254.x.x" means "Windows couldn’t get an IP address from your router." It indicates address-acquisition failure for this automatically configured client. It does not demonstrate a normal DHCP lease, assignment of a public WAN address, or successful communication with the default gateway.

    Reference: Fix Wi-Fi connection issues in Windows — Check your IP address