100+ Free CWS Practice Questions

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Question 1

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Which frequency band is used by 2.4 GHz Wi-Fi and is also shared with Bluetooth, microwave ovens, and cordless phones?

ISM band

U-NII-1 band

U-NII-5 band

C-band

to track

2026 Statistics

Key Facts: CWS Exam

70%

Passing Score

CWNP

Exam Questions

60 minutes

15-25 hrs

Study Time

Recommended

$125

Exam Fee

CWNP

3 years

Certification Valid

CWNP

Entry-level

Certification Level

CWNP

The CWS-100 exam has 60 multiple-choice questions in 60 minutes with a 70% passing score. It covers RF fundamentals, 802.11 standards, enterprise architectures (autonomous, controller-based, cloud-managed), SSIDs and VLANs, WPA2/WPA3 security basics, Wi-Fi use cases (enterprise, healthcare, education, hospitality, stadium, warehouse, IoT), and common vendors (Cisco, Aruba, Mist, Extreme, Ruckus, Fortinet, Ubiquiti, TP-Link). The exam fee is $125 USD and the certification is valid for 3 years. It is delivered at Pearson VUE test centers and online.

Sample CWS Practice Questions

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

1Which frequency band is used by 2.4 GHz Wi-Fi and is also shared with Bluetooth, microwave ovens, and cordless phones?

A.ISM band

B.U-NII-1 band

C.U-NII-5 band

D.C-band

Explanation: The 2.4 GHz band is part of the Industrial, Scientific, and Medical (ISM) unlicensed band. It is shared with Bluetooth, microwave ovens, cordless phones, and many IoT devices, which is why it often suffers from non-Wi-Fi interference. 5 GHz Wi-Fi uses U-NII (Unlicensed National Information Infrastructure) bands 1-4. U-NII-5/6/7/8 are 6 GHz bands used by Wi-Fi 6E and Wi-Fi 7. C-band is a licensed band used for cellular and satellite.

2How many non-overlapping 20 MHz channels are available in the 2.4 GHz band in North America?

A.1

B.3

C.5

D.11

Explanation: In the 2.4 GHz band, channels 1, 6, and 11 are the three standard non-overlapping 20 MHz channels used in North America. While channels 1 through 11 are available, most overlap. Using only 1/6/11 avoids co-channel and adjacent-channel interference and is a universal best practice for 2.4 GHz design.

3Which unit expresses absolute RF power referenced to one milliwatt?

A.dB

B.dBi

C.dBm

D.dBd

Explanation: dBm is an absolute power measurement where 0 dBm = 1 mW. It is the standard way AP transmit power and client received signal strength (RSSI) are expressed. dB is a unitless ratio. dBi is antenna gain relative to an isotropic radiator. dBd is gain relative to a half-wave dipole.

4What marketing name is used for the IEEE 802.11ax standard?

A.Wi-Fi 5

B.Wi-Fi 6

C.Wi-Fi 6E

D.Wi-Fi 7

Explanation: 802.11ax is marketed as Wi-Fi 6 (and Wi-Fi 6E when operating in the 6 GHz band). 802.11ac is Wi-Fi 5. 802.11be is Wi-Fi 7. The Wi-Fi Alliance introduced these generation numbers to make the standards easier for consumers to understand.

5Which Wi-Fi generation introduced operation in the 6 GHz band?

A.Wi-Fi 5

B.Wi-Fi 6

C.Wi-Fi 6E

D.Wi-Fi 4

Explanation: Wi-Fi 6E extended 802.11ax operation into the 6 GHz band (U-NII-5 through U-NII-8). Wi-Fi 6 covers 2.4 and 5 GHz only. Wi-Fi 7 (802.11be) also uses 6 GHz and adds Multi-Link Operation. The 6 GHz band opens up many more 80 and 160 MHz channels with little legacy interference.

6A customer wants to cover a large open warehouse with Wi-Fi and needs directional coverage down long aisles. Which antenna type is most appropriate?

A.Omnidirectional dipole

B.Patch antenna

C.Yagi or directional patch antenna

D.Sector antenna for outdoor use

Explanation: Long aisles benefit from directional antennas such as Yagi or directional patch antennas mounted at aisle ends, which focus energy down the aisle and reduce coverage bleed into adjacent aisles. Omnidirectional antennas radiate in all directions and waste energy into racks. Sector antennas are typically used outdoors for large area coverage.

7What does SSID stand for in Wi-Fi networking?

A.Secure System Identifier

B.Service Set Identifier

C.Signal Strength Indicator Descriptor

D.System Security Identifier

Explanation: SSID stands for Service Set Identifier — the human-readable name (up to 32 octets) that identifies a wireless network. Clients see the SSID when selecting a network to join. A BSSID (Basic Service Set Identifier) is the MAC address of an AP radio. An ESSID is the SSID used across multiple APs in an Extended Service Set.

8Which security mode uses pre-shared keys (PSK) and is appropriate for home and small-office Wi-Fi?

A.WPA2-Enterprise

B.WPA2-Personal

C.802.1X/EAP

D.RADIUS-authenticated

Explanation: WPA2-Personal uses a pre-shared key (passphrase) that all users share. It is simple to deploy and suits home and small office use. WPA2-Enterprise uses 802.1X/EAP with a RADIUS server to authenticate each user individually — more secure and appropriate for corporate networks.

9Which WPA3 feature replaces the WPA2 4-way handshake to protect against offline dictionary attacks on the PSK?

A.PMF (802.11w)

B.SAE (Simultaneous Authentication of Equals)

C.EAP-TLS

D.OWE

Explanation: WPA3-Personal uses Simultaneous Authentication of Equals (SAE, also known as Dragonfly), which provides forward secrecy and resists offline dictionary attacks even with weak passphrases. PMF protects management frames. EAP-TLS is an Enterprise authentication method. OWE (Opportunistic Wireless Encryption) provides unauthenticated encryption for open networks.

10A small business owner asks why their Wi-Fi is slow when running a microwave oven. What is the most likely cause?

A.The microwave is stealing Wi-Fi channels

B.Non-Wi-Fi RF interference in the 2.4 GHz ISM band

C.The AP is overheating from microwave radiation

D.Electromagnetic pulse damage

Explanation: Microwave ovens operate around 2.45 GHz in the same ISM band as 2.4 GHz Wi-Fi and produce strong non-Wi-Fi interference when leaks occur. This raises the noise floor and causes Wi-Fi retries and rate drops. Moving clients to the 5 GHz band, which microwaves do not affect, usually resolves the issue.

About the CWS Exam

The CWNP Certified Wireless Specialist (CWS-100) exam is the entry-level CWNP credential. It is aimed at sales, pre-sales, and non-technical staff who need foundational Wi-Fi knowledge to discuss enterprise wireless solutions with customers. It covers Wi-Fi fundamentals, 802.11 standards (Wi-Fi 4/5/6/6E/7), enterprise architectures, SSIDs/VLANs, WPA2/WPA3 security basics, and common Wi-Fi use cases and vendors.

Questions

60 scored questions

Time Limit

60 minutes

Passing Score

70%

Exam Fee

$125 USD (CWNP / Pearson VUE)

CWS Exam Content Outline

20%

Wi-Fi Fundamentals and RF Basics

Frequency/wavelength, power (dBm/dBi), LOS vs NLOS, 2.4/5/6 GHz bands, channels, and non-overlapping 1/6/11

20%

802.11 Standards Overview

Wi-Fi 4/5/6/6E/7, MIMO/OFDMA, channel widths, and the differences between generations

20%

Enterprise Architectures and Vendors

Autonomous AP, lightweight/controller, cloud-managed (Meraki, Mist, Aruba Central), and common vendors

20%

Security and Authentication

WPA2-Personal/Enterprise, WPA3 SAE and OWE, 802.1X/EAP basics, and guest Wi-Fi patterns

20%

Use Cases and Business

Enterprise, hospitality, healthcare, education, IoT, stadium, CAPEX vs OPEX, and Wi-Fi as a Service

How to Pass the CWS Exam

What You Need to Know

Passing score: 70%
Exam length: 60 questions
Time limit: 60 minutes
Exam fee: $125 USD

Keys to Passing

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

CWS Study Tips from Top Performers

1Learn the Wi-Fi generation names (Wi-Fi 4 = 802.11n, Wi-Fi 5 = 802.11ac, Wi-Fi 6 = 802.11ax, Wi-Fi 6E = 6 GHz, Wi-Fi 7 = 802.11be)

2Memorize the 2.4 GHz non-overlapping channels (1, 6, 11) and know the 5 GHz U-NII bands plus the 6 GHz U-NII-5 through U-NII-8

3Understand WPA2 vs WPA3 differences (SAE, PMF, OWE, 192-bit mode) at a conceptual level

4Know the main vendor platforms: Cisco Meraki, Aruba Central, Juniper Mist, Extreme Cloud IQ, Ruckus, Ubiquiti UniFi, Fortinet, TP-Link Omada

5Learn common use cases and their design priorities (stadium = high density; hospital = reliability and RTLS; warehouse = directional antennas)

Frequently Asked Questions

What is the CWS-100 exam?

The CWS-100 (Certified Wireless Specialist) is CWNP's entry-level credential for sales, pre-sales, and non-technical staff. It validates foundational Wi-Fi knowledge: RF basics, 802.11 standards (Wi-Fi 4/5/6/6E/7), enterprise architectures, WPA2/WPA3 security, Wi-Fi use cases, and common vendors (Cisco, Aruba, Mist, Extreme, Ruckus, Ubiquiti).

How many questions are on the CWS exam?

The CWS-100 exam has 60 multiple-choice questions to be completed in 60 minutes. The passing score is 70%. The exam is delivered at Pearson VUE test centers and online, and the certification is valid for 3 years.

How hard is the CWS exam?

CWS is considered entry-level. It tests conceptual understanding rather than deep engineering. With 15-25 hours of study over 2-4 weeks, most candidates pass on their first attempt. It is easier than CWNA (the foundational technical cert) and aimed at a different audience (sales and pre-sales).

Is CWS a prerequisite for CWNA?

No. CWS is not a prerequisite for CWNA or any other CWNP cert. CWS targets non-technical audiences who need foundational wireless vocabulary. Technical staff typically start with CWNA instead.

What is the CWS exam cost and how often can I retake it?

The CWS-100 exam fee is $125 USD. CWNP has no mandatory waiting period between retakes, though full exam fee applies to each attempt. The certification is valid for 3 years.