CWT-101 Certified Wireless Technician — Questions and Answers

Question 1: Which personal protective equipment (PPE) principle applies to ALL CWT certified professionals regardless of their specific role?

PPE is optional if experienced in the field
Any PPE will provide adequate protection
PPE must be properly fitted, maintained, and replaced as needed (Correct answer)
PPE is only necessary during formal inspections

Correct answer: PPE must be properly fitted, maintained, and replaced as needed

Regardless of experience level, PPE must be properly fitted, regularly maintained, and replaced when worn or damaged.

Question 2: Which device is used to add PoE capability to an existing non-PoE switch infrastructure?

Uninterruptible power supply (UPS)
PoE splitter
Power distribution unit (PDU)
PoE midspan injector (Correct answer)

Correct answer: PoE midspan injector

A PoE midspan injector sits between a non-PoE switch and the PD, injecting DC power onto the Ethernet cable without requiring a PoE-capable switch.

Question 3: In Certified Wireless Technician, what is the PRIMARY purpose of conducting regular safety drills and exercises?

To ensure personnel can respond effectively in emergencies (Correct answer)
To satisfy insurance requirements only
To reduce daily workload
To evaluate employee performance reviews

Correct answer: To ensure personnel can respond effectively in emergencies

Regular safety drills ensure that all personnel are prepared to respond effectively during actual emergencies.

Question 4: During maintenance, you discover an AP's firmware is two major versions behind. What is the recommended action?

Downgrade to the oldest stable version first
Review release notes, test in a lab environment, then upgrade during a maintenance window (Correct answer)
Upgrade directly to the latest version without testing
Leave the firmware as-is if the AP is functioning normally

Correct answer: Review release notes, test in a lab environment, then upgrade during a maintenance window

Best practice is to review release notes for breaking changes, validate in a lab, and schedule upgrades during low-traffic windows.

Question 5: A technician is optimizing channel reuse in a 2.4 GHz deployment. Which set of non-overlapping channels should be used?

1, 5, 9
1, 4, 8
1, 6, 11 (Correct answer)
2, 7, 12

Correct answer: 1, 6, 11

Channels 1, 6, and 11 are the only three non-overlapping 20 MHz channels in the 2.4 GHz band in North America.

Question 6: What is the maximum PSE power output per port defined by IEEE 802.3bt Type 4 (Class 8)?

90 watts (Correct answer)
100 watts
60 watts
75 watts

Correct answer: 90 watts

IEEE 802.3bt Type 4 delivers up to 90W at the PSE using all four wire pairs, enabling high-power devices like multi-radio access points and PTZ cameras.

Question 7: How should Certified Wireless Technician professionals handle equipment showing signs of malfunction during operation?

Immediately cease operation, secure the equipment, and report (Correct answer)
Continue operating while monitoring
Finish the current task first
Attempt field repairs while running

Correct answer: Immediately cease operation, secure the equipment, and report

Immediate cessation prevents safety hazards, further damage, or compromised results.

Question 8: Why use VLANs in wireless networks?

To reduce signal strength
To create isolated network zones (Correct answer)
To disable DHCP
To mask SSIDs

Correct answer: To create isolated network zones

VLANs (Virtual Local Area Networks) allow a single physical network to be segmented into multiple logical networks. In wireless networks, VLANs are used to create isolated broadcast domains, separating different groups of users or devices, such as guests from employees, or IoT devices from corporate servers. This enhances security by preventing unauthorized access between segments and improves network management.

Question 9: What distinguishes a Certified Wireless Technician certified professional from a non-certified practitioner?

Certified professionals only work in larger organizations
Certified professionals always have more experience
Certification validates competency through standardized assessment against benchmarks (Correct answer)
There is no meaningful difference

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 10: A technician needs to segment IoT devices from corporate clients on the same physical WLAN infrastructure. Which mechanism achieves this logical separation?

Multiple SSIDs mapped to separate VLANs (Correct answer)
Disabling SSID broadcasting for the IoT network
Separate RADIUS server instances
DFS channel assignment

Correct answer: Multiple SSIDs mapped to separate VLANs

Multiple SSIDs each mapped to a distinct VLAN allow different device groups to share the same AP hardware while remaining logically isolated.

Question 11: A wireless access point is PoE Class 3 under IEEE 802.3af. What is its maximum allowable power draw at the device?

30 watts
12.95 watts (Correct answer)
6.49 watts
15.4 watts

Correct answer: 12.95 watts

Under IEEE 802.3af, a Class 3 PD can draw a maximum of 12.95W at the device after cable losses, making it the highest class under the original PoE standard.

Question 12: What is the MOST effective way for new CWT professionals to build competency?

Studying certification materials exclusively
Learning through trial and error
Combining formal education, mentored practice, and ongoing professional development (Correct answer)
Focusing solely on advanced topics

Correct answer: Combining formal education, mentored practice, and ongoing professional development

Building competency requires formal education, mentored practice, and ongoing development.

Question 13: In a WPA2-Enterprise deployment, what is the primary role of the PMK (Pairwise Master Key)?

It authenticates the AP to the WLAN controller
It seeds the 4-Way Handshake to derive the PTK used for data encryption (Correct answer)
It is used directly to encrypt all unicast data frames
It encrypts the RADIUS shared secret

Correct answer: It seeds the 4-Way Handshake to derive the PTK used for data encryption

The PMK is derived from 802.1X authentication and serves as the input to the 4-Way Handshake, which produces the PTK for frame encryption.

Question 14: What is the FIRST step before operating any equipment in CWT practice?

Begin operation to test it
Conduct a pre-operation inspection and verify safety systems (Correct answer)
Ask a colleague if it seems okay
Read the manual only if issues occur

Correct answer: Conduct a pre-operation inspection and verify safety systems

Pre-operation inspection ensures visible damage is checked and safety systems verified.

Question 15: How does the CWT body of knowledge relate to daily professional practice?

It only applies during exams
It is only for academic research
It provides the foundational framework guiding decision-making and standard practices (Correct answer)
It is theoretical with limited application

Correct answer: It provides the foundational framework guiding decision-making and standard practices

The body of knowledge provides the framework guiding daily decision-making and practices.

Question 16: What does VSWR (Voltage Standing Wave Ratio) indicate in an antenna system?

The frequency range of the antenna
The polarization of the antenna
The antenna's operating temperature range
The amount of RF power reflected due to impedance mismatch (Correct answer)

Correct answer: The amount of RF power reflected due to impedance mismatch

VSWR measures the ratio of reflected to forward power caused by impedance mismatch between the antenna and transmission line, with 1:1 being ideal.

Question 17: How should Certified Wireless Technician professionals handle equipment showing signs of malfunction during operation?

Attempt field repairs while running
Finish the current task first
Immediately cease operation, secure the equipment, and report (Correct answer)
Continue operating while monitoring

Correct answer: Immediately cease operation, secure the equipment, and report

Immediate cessation prevents safety hazards, further damage, or compromised results.

Question 18: A client reports intermittent connectivity that correlates with microwave oven use in the break room. Which band and channel combination is most affected?

2.4 GHz, channel 11
2.4 GHz, channel 6 (Correct answer)
5 GHz, channel 36
5 GHz, channel 149

Correct answer: 2.4 GHz, channel 6

Microwave ovens emit RF energy around 2.45 GHz, which overlaps with the 2.4 GHz Wi-Fi band and particularly impacts channels near the center of the band such as channel 6.

Question 19: Which 802.11 amendment introduced support for operation in the TV White Space (TVWS) spectrum below 1 GHz?

802.11p
802.11af (Correct answer)
802.11ad
802.11ah

Correct answer: 802.11af

IEEE 802.11af (also called White-Fi or Super Wi-Fi) operates in unused TV broadcast channels (54–790 MHz), offering extended range due to favorable propagation at lower frequencies.

Question 20: A client cannot associate to an AP even though the correct SSID is selected. The technician confirms the passphrase is correct. What should be checked next?

Client's MAC address and whether MAC filtering is enabled (Correct answer)
AP firmware version
AP antenna gain
DHCP lease duration

Correct answer: Client's MAC address and whether MAC filtering is enabled

If credentials are correct but association fails, MAC address filtering on the AP may be blocking the client.

Question 21: What is the guard interval in OFDM, and why is it used?

A power reduction period between transmissions
A cyclic prefix that enables synchronization only
A frequency gap between subcarriers to prevent overlap
A time gap between symbols to prevent intersymbol interference from multipath (Correct answer)

Correct answer: A time gap between symbols to prevent intersymbol interference from multipath

The guard interval is a brief silent period inserted between OFDM symbols to allow multipath echoes to die out before the next symbol is received, preventing ISI.

Question 22: Which 802.11 amendment introduced the Robust Security Network (RSN) framework?

802.11e
802.11ac
802.11n
802.11i (Correct answer)

Correct answer: 802.11i

802.11i defined the RSN framework, mandating CCMP/AES encryption and replacing the flawed WEP standard.

Question 23: Which IEEE standard originally defined Power over Ethernet (PoE), delivering up to 15.4W per port?

IEEE 802.3at
IEEE 802.3af (Correct answer)
IEEE 802.3bt
IEEE 802.11ac

Correct answer: IEEE 802.3af

IEEE 802.3af was the first IEEE standard to define PoE, specifying up to 15.4W of power per port at the PSE.

Question 24: Which Wi-Fi Alliance certification program replaced WPA2 and introduced SAE (Simultaneous Authentication of Equals)?

WPA-Enterprise
Wi-Fi 6E
Wi-Fi CERTIFIED n
WPA3 (Correct answer)

Correct answer: WPA3

WPA3 replaced WPA2 and introduced SAE, which provides stronger password-based authentication and forward secrecy.

Question 25: Which metric is used in 802.11k Neighbor Reports to help a client select the best AP to roam to?

TSF (Timing Synchronization Function) value
RCPI (Received Channel Power Indicator) and RSNI (Received Signal to Noise Indicator) (Correct answer)
DTIM period
Beacon interval

Correct answer: RCPI (Received Channel Power Indicator) and RSNI (Received Signal to Noise Indicator)

802.11k Neighbor Reports include RCPI and RSNI values so clients can intelligently rank candidate APs before roaming.

Question 26: Which EAP method uses server-side certificates only, with client credentials tunneled inside a TLS session?

PEAP (Correct answer)
EAP-MD5
LEAP
EAP-TLS

Correct answer: PEAP

PEAP establishes a TLS tunnel using only a server certificate, then authenticates the client via MSCHAPv2 or another inner method inside the tunnel.

Question 27: When conducting a risk assessment for CWT operations, which factor should receive the HIGHEST priority?

Convenience for daily operations
Probability and severity of potential harm (Correct answer)
Cost of implementing safety measures
Time required for safety training

Correct answer: Probability and severity of potential harm

The probability and severity of potential harm are the primary factors in risk assessment.

Question 28: What is the primary purpose of WPA3?

To increase bandwidth
To manage IP addresses
To enhance wireless encryption (Correct answer)
To broadcast SSIDs

Correct answer: To enhance wireless encryption

WPA3 (Wi-Fi Protected Access 3) is the latest security standard for wireless networks, designed to address vulnerabilities found in previous protocols. Its primary purpose is to provide stronger encryption and more robust authentication methods, making it significantly harder for unauthorized users to compromise Wi-Fi traffic. This ensures greater privacy and security for all connected devices.

Question 29: After a power outage, several APs do not come back online. The most likely cause is:

The APs need manual channel reassignment after a reboot
The APs lost their radio firmware permanently
The WLC blacklisted the APs during the outage
The PoE switch or injectors did not restore power to all ports (Correct answer)

Correct answer: The PoE switch or injectors did not restore power to all ports

PoE switches sometimes do not restore power to all ports after a power event due to budget limits or port priority settings.

Question 30: Which 802.11ax (Wi-Fi 6) feature reduces power consumption for IoT devices by scheduling when they wake to receive data?

OFDMA
TWT (Target Wake Time) (Correct answer)
MU-MIMO
BSS Coloring

Correct answer: TWT (Target Wake Time)

TWT allows an AP and client to negotiate specific times for the client to wake and exchange data, significantly extending battery life.

Question 31: What is the difference between a predictive site survey and a physical (active/passive) site survey?

A predictive survey uses expensive hardware; a physical survey uses only free apps
A predictive survey uses software modeling to simulate RF propagation before installation; a physical survey measures actual signals on-site (Correct answer)
There is no meaningful difference between the two methods
A predictive survey is performed after installation; a physical survey is done before

Correct answer: A predictive survey uses software modeling to simulate RF propagation before installation; a physical survey measures actual signals on-site

Predictive surveys use floor plans and RF modeling software to simulate coverage before deployment, while physical surveys measure real signal levels in the actual environment.

Question 32: What is the PRIMARY purpose of obtaining CWT certification in Certified Wireless Technician?

To demonstrate verified competency and adherence to professional standards (Correct answer)
To bypass educational requirements
To satisfy a personal achievement goal
To guarantee employment

Correct answer: To demonstrate verified competency and adherence to professional standards

Certification demonstrates verified competency and adherence to professional standards.

Question 33: What does the Temporal Key Integrity Protocol (TKIP) use to improve upon WEP's weaknesses?

GCMP-256 encryption
SAE Dragonfly handshake
AES-CCMP with 128-bit keys
Per-packet key mixing and a message integrity check (Michael MIC) (Correct answer)

Correct answer: Per-packet key mixing and a message integrity check (Michael MIC)

TKIP added per-packet key mixing, a sequence counter, and the Michael MIC to address WEP's static key and integrity vulnerabilities.

Question 34: In Certified Wireless Technician practice, what is the FIRST step when a safety hazard is identified in the workplace?

Wait for a supervisor to notice the issue
Continue working and report at end of shift
Document it for the next safety audit
Immediately secure the area and report the hazard (Correct answer)

Correct answer: Immediately secure the area and report the hazard

When a safety hazard is identified, the immediate priority is to secure the area to prevent injury and report the hazard through proper channels.

Question 35: Which statement BEST describes the relationship between Certified Wireless Technician certification and industry evolution?

Certification requirements never change
Requirements evolve periodically to reflect advances in knowledge and practice (Correct answer)
Changes only occur when government mandates them
Requirements become less stringent over time

Correct answer: Requirements evolve periodically to reflect advances in knowledge and practice

Certification requirements evolve to keep pace with professional and technological advances.

Question 36: What documentation is MOST critical to maintain for safety compliance in the Certified Wireless Technician field?

Annual revenue reports
Incident reports, training records, and inspection logs (Correct answer)
Employee vacation schedules
Client marketing preferences

Correct answer: Incident reports, training records, and inspection logs

Incident reports, training records, and inspection logs are essential safety documentation for demonstrating compliance.

Question 37: What is the PRIMARY purpose of obtaining CWT certification in Certified Wireless Technician?

To bypass educational requirements
To demonstrate verified competency and adherence to professional standards (Correct answer)
To satisfy a personal achievement goal
To guarantee employment

Correct answer: To demonstrate verified competency and adherence to professional standards

Certification demonstrates verified competency and adherence to professional standards.

Question 38: Which personal protective equipment (PPE) principle applies to ALL CWT certified professionals regardless of their specific role?

PPE is only necessary during formal inspections
PPE must be properly fitted, maintained, and replaced as needed (Correct answer)
Any PPE will provide adequate protection
PPE is optional if experienced in the field

Correct answer: PPE must be properly fitted, maintained, and replaced as needed

Regardless of experience level, PPE must be properly fitted, regularly maintained, and replaced when worn or damaged.

Question 39: Which risk management approach is MOST effective for CWT professionals when evaluating potential workplace hazards?

Delegating all safety decisions to management
Proactive hazard identification and assessment (Correct answer)
Relying solely on historical accident data
Reactive analysis after incidents occur

Correct answer: Proactive hazard identification and assessment

Proactive hazard identification and assessment allows professionals to identify and mitigate risks before incidents occur.

Question 40: Which risk management approach is MOST effective for CWT professionals when evaluating potential workplace hazards?

Proactive hazard identification and assessment (Correct answer)
Reactive analysis after incidents occur
Relying solely on historical accident data
Delegating all safety decisions to management

Correct answer: Proactive hazard identification and assessment

Proactive hazard identification and assessment allows professionals to identify and mitigate risks before incidents occur.

Question 41: What is the MOST important reason for maintaining equipment maintenance logs in CWT practice?

To justify replacement budgets
To satisfy insurance requirements only
To track maintenance history, predict failures, and demonstrate compliance (Correct answer)
To assign blame when equipment fails

Correct answer: To track maintenance history, predict failures, and demonstrate compliance

Maintenance logs track history, predict failures, and demonstrate regulatory compliance.

Question 42: What distinguishes a Certified Wireless Technician certified professional from a non-certified practitioner?

Certified professionals always have more experience
Certification validates competency through standardized assessment against benchmarks (Correct answer)
There is no meaningful difference
Certified professionals only work in larger organizations

Correct answer: Certification validates competency through standardized assessment against benchmarks

Certification provides objective validation of competency through standardized assessment.

Question 43: An AP is configured to use 40 MHz channel bonding on the 2.4 GHz band. What is the primary drawback of this configuration?

Inability to support 802.11n clients
Reduced transmit power output
Increased co-channel interference with neighboring networks (Correct answer)
Lower data throughput

Correct answer: Increased co-channel interference with neighboring networks

The 2.4 GHz band has only three non-overlapping 20 MHz channels, so 40 MHz bonding causes significant overlap and co-channel interference.

Question 44: Why is co-channel interference (CCI) a significant concern when deploying multiple access points using the same channel?

It causes APs to automatically reboot
APs on the same channel compete for air time, degrading throughput for all connected clients (Correct answer)
It only affects 5 GHz networks, not 2.4 GHz
It reduces the physical range of each access point

Correct answer: APs on the same channel compete for air time, degrading throughput for all connected clients

Co-channel interference occurs when multiple APs share the same channel, causing them to contend for medium access and reducing overall network throughput.

Question 45: Which QoS access category provides the highest priority for time-sensitive traffic like VoIP?

AC_BK (Background)
AC_VI (Video)
AC_BE (Best Effort)
AC_VO (Voice) (Correct answer)

Correct answer: AC_VO (Voice)

AC_VO has the shortest AIFSN and TXOP values, giving voice traffic the lowest contention window and fastest channel access.

Question 46: Which statement BEST describes the relationship between Certified Wireless Technician certification and industry evolution?

Changes only occur when government mandates them
Certification requirements never change
Requirements become less stringent over time
Requirements evolve periodically to reflect advances in knowledge and practice (Correct answer)

Correct answer: Requirements evolve periodically to reflect advances in knowledge and practice

Certification requirements evolve to keep pace with professional and technological advances.

Question 47: When conducting a risk assessment for CWT operations, which factor should receive the HIGHEST priority?

Cost of implementing safety measures
Time required for safety training
Probability and severity of potential harm (Correct answer)
Convenience for daily operations

Correct answer: Probability and severity of potential harm

The probability and severity of potential harm are the primary factors in risk assessment.

Question 48: Which IEEE 802.11 amendment introduced OFDMA as a key feature for improved multi-user efficiency?

802.11ac
802.11g
802.11n
802.11ax (Correct answer)

Correct answer: 802.11ax

802.11ax (Wi-Fi 6) introduced Orthogonal Frequency Division Multiple Access (OFDMA), allowing simultaneous transmission to multiple clients in the same channel.

Question 49: What documentation is MOST critical to maintain for safety compliance in the Certified Wireless Technician field?

Incident reports, training records, and inspection logs (Correct answer)
Client marketing preferences
Annual revenue reports
Employee vacation schedules

Correct answer: Incident reports, training records, and inspection logs

Incident reports, training records, and inspection logs are essential safety documentation for demonstrating compliance.

Question 50: In Certified Wireless Technician practice, what is the FIRST step when a safety hazard is identified in the workplace?

Document it for the next safety audit
Wait for a supervisor to notice the issue
Continue working and report at end of shift
Immediately secure the area and report the hazard (Correct answer)

Correct answer: Immediately secure the area and report the hazard

When a safety hazard is identified, the immediate priority is to secure the area to prevent injury and report the hazard through proper channels.

Question 51: Which RF phenomenon occurs when a signal travels two different paths and the delayed copy destructively interferes with the primary signal?

Scattering
Refraction
Multipath fading (Correct answer)
Diffraction

Correct answer: Multipath fading

Multipath fading occurs when reflected or scattered copies of a signal arrive at the receiver out of phase, causing destructive interference and signal degradation.

Question 52: When configuring band steering on a dual-band AP, what is the intended outcome?

Force all clients to the 2.4 GHz band for wider coverage
Encourage capable clients to connect on the 5 GHz band (Correct answer)
Prevent clients from roaming between APs
Balance equal numbers of clients on each band

Correct answer: Encourage capable clients to connect on the 5 GHz band

Band steering nudges dual-band capable clients toward the 5 GHz band to reduce congestion on the 2.4 GHz band.

Question 53: BSS Coloring in 802.11ax is designed to improve which aspect of WLAN performance?

Roaming speed between APs
Encryption key rotation frequency
Beamforming antenna gain
Spatial reuse by allowing concurrent transmissions in overlapping BSSs (Correct answer)

Correct answer: Spatial reuse by allowing concurrent transmissions in overlapping BSSs

BSS Coloring tags frames with a color identifier so stations can differentiate overlapping BSS transmissions and defer only when necessary, improving spatial reuse.

Question 54: A wireless technician discovers that a client is sending 802.11 probe requests with randomized MAC addresses. What is the security purpose of this client behavior?

To prevent tracking of the device's physical location across Wi-Fi networks (Correct answer)
To test multiple SSIDs simultaneously
To bypass MAC address filtering on corporate APs
To initiate a de-authentication against the connected AP

Correct answer: To prevent tracking of the device's physical location across Wi-Fi networks

MAC address randomization during scanning prevents third parties from correlating probe requests to a specific device over time.

Question 55: In Certified Wireless Technician, what is the PRIMARY purpose of conducting regular safety drills and exercises?

To evaluate employee performance reviews
To satisfy insurance requirements only
To reduce daily workload
To ensure personnel can respond effectively in emergencies (Correct answer)

Correct answer: To ensure personnel can respond effectively in emergencies

Regular safety drills ensure that all personnel are prepared to respond effectively during actual emergencies.

Question 56: Which Wi-Fi security vulnerability involves an attacker creating a duplicate SSID and stronger signal to lure clients away from the legitimate AP?

Evil Twin attack (Correct answer)
KRACK attack
Beacon flood
Disassociation attack

Correct answer: Evil Twin attack

An Evil Twin AP mimics a legitimate SSID to perform a man-in-the-middle attack, intercepting client traffic.

Question 57: What is the function of a firewall in a wireless network?

To filter and protect network traffic (Correct answer)
To reroute DNS
To block all traffic
To boost Wi-Fi speed

Correct answer: To filter and protect network traffic

A firewall acts as a security barrier in a wireless network, monitoring and controlling incoming and outgoing network traffic based on predefined security rules. Its function is to filter out malicious data, block unauthorized access attempts, and protect the network from various cyber threats. This ensures that only legitimate and safe traffic can pass through, safeguarding network resources and data.

Question 58: What is the MOST effective way for new CWT professionals to build competency?

Studying certification materials exclusively
Combining formal education, mentored practice, and ongoing professional development (Correct answer)
Focusing solely on advanced topics
Learning through trial and error

Correct answer: Combining formal education, mentored practice, and ongoing professional development

Building competency requires formal education, mentored practice, and ongoing development.

Question 59: What does the term 'beamwidth' describe in the context of antenna specifications?

The frequency bandwidth the antenna supports
The cable thickness required for the antenna
The angle in degrees between the half-power (-3 dB) points of an antenna's radiation pattern (Correct answer)
The physical width of the antenna element

Correct answer: The angle in degrees between the half-power (-3 dB) points of an antenna's radiation pattern

Beamwidth is the angular measurement between the -3 dB points of an antenna's radiation pattern, indicating how focused or broad the coverage area is.

Question 60: A client's Wi-Fi connection drops every 60 minutes at exactly the same interval. What is the most likely cause?

AP channel change due to DFS radar detection
DHCP lease expiration and renewal failure (Correct answer)
RF interference from DECT phones
Client power-saving mode activating

Correct answer: DHCP lease expiration and renewal failure

Exactly timed disconnections at a fixed interval strongly suggest a DHCP lease expiration issue where the renewal is failing.

CWT-101 Certified Wireless Technician

The CWT-101 exam validates foundational knowledge of wireless networking, covering RF hardware, 802.11 standards, WLAN equipment, and organizational wireless deployment goals. It is administered by CWNP for entry-level wireless technicians.

Questions

90 min

Time Limit

70%

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