CPL Smart Lock & IoT Security 2

Question 1

Which wireless protocol operates on the 908.42 MHz frequency band and is commonly used in smart locks to avoid Wi-Fi interference?

Accepted Answer

Z-Wave

Answer

Z-Wave operates at 908.42 MHz in North America, which avoids the crowded 2.4 GHz band used by Wi-Fi and Bluetooth.

Question 2

A customer's smart lock repeatedly disconnects from their home network. The locksmith checks and finds the lock is a Wi-Fi model placed 45 feet from the router with two walls in between. What is the most likely cause?

Accepted Answer

Insufficient Wi-Fi signal strength at the lock location

Answer

Wi-Fi signal degrades with distance and obstructions; 45 feet with two walls is often enough to cause unreliable connectivity for smart locks.

Question 3

What does the term 'mesh network' mean in the context of smart lock ecosystems like Z-Wave or Zigbee?

Accepted Answer

Each device can relay signals from other devices, extending network range

Answer

In a mesh network, each node (device) can act as a repeater, forwarding signals from other devices and extending the overall network range.

Question 4

Which authentication factor does a fingerprint biometric smart lock represent?

Accepted Answer

Something you are

Answer

Biometric identifiers like fingerprints represent the 'something you are' authentication factor because they are inherent to the individual.

Question 5

A locksmith is installing a smart deadbolt that uses the Matter protocol. What is the primary advantage of Matter over older smart home protocols?

Accepted Answer

Matter provides interoperability across different smart home ecosystems (Apple, Google, Amazon)

Answer

Matter is an open-source, IP-based connectivity standard designed to ensure smart home devices work seamlessly across different platforms like Apple Home, Google Home, and Amazon Alexa.

(CPL) Certified Professional Locksmith Practice Test

(CPL) Certified Professional Locksmith Practice Test

CPL Smart Lock & IoT Security 2