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Which two frequency bands have been used by mainstream Wi-Fi the longest?

900 MHz and 1.8 GHz

2.4 GHz and 5 GHz

6 GHz and 60 GHz

2.4 GHz and 6 GHz

to track

2026 Statistics

Key Facts: CWTS Exam

70%

Passing Score

CWNP

Exam Questions

90 minutes

30-50 hrs

Study Time

Recommended

$174.99

Exam Fee

CWNP

3 years

Certification Valid

CWNP

Entry-level

Difficulty

CWNP

CWTS-102 is the CWNP entry-level Wireless Technology Specialist certification covering basic RF, wireless clients, access points, 802.11 security configuration, and WLAN troubleshooting. The exam has 60 multiple-choice questions in 90 minutes with a 70% passing score and is delivered online through Pearson VUE for $174.99. It is vendor-neutral and aimed at sales, support, and entry-level IT roles. CWTS is broader and shallower than CWNA and is valid for 3 years.

Sample CWTS Practice Questions

Try these sample questions to test your CWTS exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which two frequency bands have been used by mainstream Wi-Fi the longest?

A.900 MHz and 1.8 GHz

B.2.4 GHz and 5 GHz

C.6 GHz and 60 GHz

D.2.4 GHz and 6 GHz

Explanation: Mainstream Wi-Fi has used the 2.4 GHz and 5 GHz unlicensed bands for many years. The 6 GHz band was added with Wi-Fi 6E and is much newer. 900 MHz and 1.8 GHz are used by other wireless services such as cellular and ISM devices, not standard Wi-Fi.

2Which Wi-Fi generation introduced operation in the 6 GHz band?

A.Wi-Fi 4

B.Wi-Fi 5

C.Wi-Fi 6E

D.Wi-Fi 7

Explanation: Wi-Fi 6E extended 802.11ax operation into the 6 GHz band, adding a large block of new spectrum. Wi-Fi 4 and Wi-Fi 5 used only 2.4 GHz and 5 GHz. Wi-Fi 7 also uses 6 GHz but did not introduce it.

3What is the IEEE designation for Wi-Fi 6?

A.802.11n

B.802.11ac

C.802.11ax

D.802.11be

Explanation: 802.11ax is branded as Wi-Fi 6 (and Wi-Fi 6E when it operates in the 6 GHz band). 802.11n is Wi-Fi 4, 802.11ac is Wi-Fi 5, and 802.11be is Wi-Fi 7.

4What does the unit dBm measure?

A.Antenna gain relative to a dipole

B.Cable length in meters

C.An absolute power level relative to one milliwatt

D.A relative ratio between two antennas

Explanation: dBm is an absolute power level expressed in decibels relative to one milliwatt. 0 dBm equals 1 mW. Antenna gain is expressed in dBi or dBd, and a plain dB value is a ratio without absolute reference.

5Which of the following best describes attenuation in a Wi-Fi context?

A.Increase in signal power

B.Reduction in signal power as it travels or passes through material

C.Reflection of a signal off a smooth surface

D.Splitting of a signal into multiple paths

Explanation: Attenuation is the loss of signal power as RF travels through space or through materials such as walls. Reflection, scattering, and refraction are separate behaviors that change the direction or shape of a signal but are not the term for power loss.

6Compared to 5 GHz, 2.4 GHz signals generally:

A.Travel shorter distances and pass through walls less effectively

B.Travel farther and pass through walls more effectively, but suffer more interference

C.Provide more non-overlapping channels

D.Operate at higher data rates per channel

Explanation: Lower-frequency 2.4 GHz signals travel farther and penetrate building materials better than 5 GHz, but the 2.4 GHz band is narrow, crowded, and shared with Bluetooth, microwaves, and other devices, so it usually has more interference.

7How many non-overlapping 20 MHz channels are typically available in the 2.4 GHz band in North America?

A.1

B.3

C.8

D.11

Explanation: In North America the 2.4 GHz band has 11 numbered channels but only three (1, 6, and 11) that do not overlap when using 20 MHz channel widths. Channels in between overlap and cause interference if used together.

8Which of these is a primary advantage of the 5 GHz band over the 2.4 GHz band for Wi-Fi?

A.More legal transmit power

B.More non-overlapping channels and less crowded spectrum

C.Better penetration through concrete walls

D.Compatibility with older 802.11b clients

Explanation: The 5 GHz band offers many more non-overlapping channels and is generally less crowded than the 2.4 GHz band, which is why most enterprise designs prefer it. 2.4 GHz still penetrates walls better, and 802.11b is a 2.4 GHz-only standard.

9Which type of antenna radiates Wi-Fi signal in roughly all horizontal directions?

A.Yagi

B.Parabolic dish

C.Omnidirectional

D.Sector

Explanation: An omnidirectional antenna radiates roughly equally in 360 degrees on the horizontal plane, producing a donut-shaped pattern. Yagi, parabolic dish, and sector antennas are directional and focus energy in a narrower beam.

10Which RF behavior describes a signal bouncing off a flat metal surface?

A.Absorption

B.Reflection

C.Diffraction

D.Refraction

Explanation: Reflection occurs when an RF wave bounces off a smooth conductive surface such as metal. Absorption is energy lost into a material, diffraction is bending around obstacles, and refraction is bending as a wave passes between media.

About the CWTS Exam

The CWTS-102 is the entry-level vendor-neutral wireless certification from CWNP, designed for sales, support, and IT staff who need a working understanding of Wi-Fi without the depth of CWNA. It covers basic RF characteristics, wireless client and AP features, WPA2/WPA3 security configuration, and troubleshooting common WLAN connection issues. CWTS provides a credible foundation for anyone who specifies, sells, supports, or installs Wi-Fi gear.

Questions

60 scored questions

Time Limit

90 minutes

Passing Score

70%

Exam Fee

$174.99 (CWNP / Pearson VUE)

CWTS Exam Content Outline

15%

Basic RF Characteristics

Frequencies, dB/dBm, gain, attenuation, and how Wi-Fi signals propagate

25%

Wireless Client Features and Capabilities

Windows/macOS/iOS/Android Wi-Fi behavior, supplicants, drivers, and profiles

25%

Wireless AP Features and Capabilities

Autonomous, controller-based, and cloud-managed APs; SSIDs, PoE, and placement

15%

Configuration of 802.11 Security Parameters

WPA2/WPA3 Personal and Enterprise, 802.1X, guest networks, and PMF

20%

Troubleshooting Common WLAN Connection Issues

Weak signal, interference, association and authentication failures

How to Pass the CWTS Exam

What You Need to Know

Passing score: 70%
Exam length: 60 questions
Time limit: 90 minutes
Exam fee: $174.99

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CWTS Study Tips from Top Performers

1Memorize the 2.4/5/6 GHz channel layouts at a high level — non-overlapping channels in 2.4 GHz and the much larger channel count in 5 GHz and 6 GHz

2Know the 802.11 amendment names: Wi-Fi 4 (n), Wi-Fi 5 (ac), Wi-Fi 6 (ax), Wi-Fi 6E (ax in 6 GHz), Wi-Fi 7 (be)

3Understand WPA2 vs WPA3 Personal (PSK vs SAE) and Enterprise (802.1X/EAP) at a conceptual level

4Be comfortable with dB and dBm at a basic level — dBm is absolute power, dB is a ratio, and 3 dB doubles power

5Know the difference between autonomous, controller-based, and cloud-managed APs and when each is used

6Use our AI tutor to walk through common client connection failures and how to isolate them

Frequently Asked Questions

What is the CWTS-102 exam?

CWTS-102 is the current Certified Wireless Technology Specialist exam from CWNP, an entry-level vendor-neutral Wi-Fi credential aimed at sales, support, and IT staff. It covers basic RF, wireless client and AP features, 802.11 security configuration, and troubleshooting common WLAN connection issues. The exam has 60 multiple-choice questions, a 90-minute time limit, and a 70% passing score, delivered online through Pearson VUE.

How is CWTS different from CWNA?

CWTS is an entry-level certification with broader, shallower coverage of Wi-Fi for non-engineering roles, while CWNA is the foundational engineer-level certification with deep coverage of RF math, 802.11 protocols, and WLAN design. CWTS skips topics like detailed EIRP calculations, frame analysis, and full site survey methodology. Many candidates take CWTS first to validate basics, then progress to CWNA.

Who should take the CWTS exam?

CWTS is targeted at Wi-Fi sales engineers, technical support representatives, help desk staff, junior network technicians, and project coordinators who specify or support wireless deployments without designing them. It is also useful for IT generalists who need credible Wi-Fi knowledge. Engineers and architects designing WLANs should pursue CWNA instead.

How hard is the CWTS-102 exam?

CWTS is considered an entry-level exam and is significantly easier than CWNA. With 30-50 hours of preparation over 4-6 weeks, most candidates with basic IT experience can pass. The hardest topics are usually 802.1X/EAP security concepts and distinguishing similar 802.11 amendments (Wi-Fi 4, 5, 6, 6E, 7). RF math is kept at conceptual depth, not formula-heavy calculation.

Is CWTS certification worth it in 2026?

Yes for sales, support, and entry-level IT roles. CWTS provides vendor-neutral validation that you understand Wi-Fi well enough to specify, support, or sell wireless equipment from any vendor. It is recognized across the industry, costs less than vendor-specific entry certifications, and serves as a stepping stone to CWNA and the rest of the CWNP track.