350-101 Sample Questions & Answers
Initial wireless setup and AP discovery tie with client-connectivity configuration for the heaviest weight, alongside RF propagation and signal math, 802.11 channel planning, physical infrastructure connections, monitoring tools, and Python automation.
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- Question 1IntermediateSelect 2
RF Fundamentals · Device capabilities (smartphones, laptops, tablets)
To optimize a high-density auditorium, a wireless engineer is analyzing the impact of client device capabilities on the overall cell performance. Which TWO of the following statements accurately describe how client characteristics affect RF design? (Select TWO)
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Correct answers: B, D
Devices with fewer spatial streams (like 1x1 smartphones) have lower maximum data rates compared to 2x2 or 3x3 devices. Consequently, they take longer to transmit the same payload, consuming more valuable airtime and reducing overall cell capacity. Furthermore, mobile devices often have weaker transmit power, requiring APs to have excellent receive sensitivity to maintain symmetrical links.
Devices with fewer spatial streams (like 1x1 smartphones) have lower maximum data rates compared to 2x2 or 3x3 devices. Consequently, they take longer to transmit the same payload, consuming more valuable airtime and reducing overall cell capacity. Furthermore, mobile devices often have weaker transmit power, requiring APs to have excellent receive sensitivity to maintain symmetrical links.
- Question 2Advanced
RF Fundamentals · Describe the principles of RF mathematics
An engineer is designing a wireless bridge using the following parameters:
- AP Transmit Power: 15 dBm
- Cable Loss at Tx: 2 dB
- Tx Antenna Gain: 12 dBi
- Free Space Path Loss: 110 dB
- Rx Antenna Gain: 14 dBi
- Cable Loss at Rx: 3 dB
What is the expected Received Signal Level (RSL) at the receiving radio?
graph LR TX[Tx Radio: 15 dBm] -- -2 dB Cable --> TA((Tx Ant: 12 dBi)) TA -. FSPL: -110 dB .-> RA((Rx Ant: 14 dBi)) RA -- -3 dB Cable --> RX[Rx Radio: ? dBm]Show answer & explanation
Correct answer: C
The Link Budget calculation formula is: RSL = Tx Power - Tx Cable Loss + Tx Antenna Gain - FSPL + Rx Antenna Gain - Rx Cable Loss.
Calculation: 15 - 2 + 12 - 110 + 14 - 3 = -74 dBm. The visual flow in the question accurately represents this addition and subtraction chain. - Question 3Beginner
RF Fundamentals · Describe the propagation of radio waves
According to the inverse square law and Free Space Path Loss (FSPL) principles, what happens to the RF signal strength every time the distance from the transmitting antenna is doubled in free space?
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Correct answer: B
According to the 6 dB rule, which is derived from the inverse square law of radio wave propagation, doubling the distance from the transmitter results in a loss of 6 dB of signal strength in a free-space environment. Conversely, halving the distance increases the signal by 6 dB.
- Question 4Intermediate
802.11 Technology Fundamentals · MIMO / MU-MIMO / MLO
When comparing Wi-Fi 7 capabilities to previous generations, which statement best describes how Multi-Link Operation (MLO) improves client performance compared to traditional channel bonding?
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Correct answer: C
Multi-Link Operation (MLO) is a flagship feature of Wi-Fi 7 (802.11be) that allows devices to simultaneously send and receive data across different frequency bands and channels (e.g., aggregating a 5 GHz link with a 6 GHz link). Unlike traditional channel bonding, which requires contiguous (or near-contiguous) channels within the same band, MLO operates across entirely different bands, drastically reducing latency and improving reliability.
graph TD AP[Wi-Fi 7 AP] Client[Wi-Fi 7 Client] AP -- 5 GHz Link --> Client AP -- 6 GHz Link --> Client style AP fill:#f9f,stroke:#333,stroke-width:2px style Client fill:#bbf,stroke:#333,stroke-width:2px - Question 5Advanced
802.11 Technology Fundamentals · Describe Wi-Fi governance
A multinational corporation is standardizing its wireless procurement requirements. The networking team insists that all new client devices must support Simultaneous Authentication of Equals (SAE) and Protected Management Frames (PMF) natively.
During a vendor review, a manufacturer claims their devices are strictly "IEEE 802.11ax compliant" but they have not undergone any third-party interoperability testing.
From a Wi-Fi governance perspective, what is the critical distinction the networking team must understand regarding the vendor's claim and their security requirements?
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Correct answer: B
The IEEE is a standards organization that drafts the technical specifications (like 802.11ax). The Wi-Fi Alliance is an industry group that takes those standards and creates certification programs (like Wi-Fi 6 CERTIFIED) to guarantee interoperability and mandate specific security features. WPA3 is a Wi-Fi Alliance certification program, not an IEEE standard name. Therefore, a device can technically comply with the IEEE 802.11ax standard without implementing the specific security features mandated by the Wi-Fi Alliance for WPA3 certification.
- Question 6Intermediate
802.11 Technology Fundamentals · MIMO / MU-MIMO / MLO
While configuring a Catalyst 9800 WLC for a high-density deployment, an administrator is asked to explain the difference between MU-MIMO and OFDMA. Which statement correctly differentiates these two technologies?
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Correct answer: D
OFDMA (Orthogonal Frequency-Division Multiple Access) is a frequency-domain multi-user technology that divides a channel into smaller subcarriers (Resource Units) to serve multiple clients simultaneously, reducing latency for small packets. MU-MIMO (Multi-User MIMO) is a spatial-domain technology that uses separate spatial streams (via multiple antennas) to transmit to multiple clients at the same time on the same frequency, which is better for high-bandwidth applications.
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