Internet of Things (IoT) Practice Exam

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What is a common method to protect IoT data transmissions?

A. Data compression
B. Encryption
C. Open-source software
D. Manual data entry

The correct answer is: B. Encryption

Encryption is a widely recognized method to protect data transmissions in the Internet of Things (IoT) environment. It ensures that sensitive information sent between devices is encoded in a way that makes it unreadable to anyone who doesn't have the proper decryption key. By implementing encryption, even if a data packet is intercepted by unauthorized parties, the information remains secure and inaccessible, significantly enhancing the overall security of IoT systems. In contrast, data compression focuses on reducing the size of data sent over networks, which may improve transmission efficiency but does not inherently provide security against eavesdropping or data breaches. Open-source software refers to software with accessible source code, which promotes transparency and collaboration but may not directly relate to the security of data transmissions. Manual data entry entails the human input of data, which is prone to errors and does not involve any mechanism for securing data in transit. By employing encryption, IoT systems can effectively safeguard data against various potential threats, making it a fundamental practice in securing IoT communications.