Which security goal protects data from unauthorized reading?
Correct Answer: D. Confidentiality
MCQ Collection
Semester Exam MCQs
Semester Exam preparation MCQs for university and college students. This section includes subject-wise practice questions, answers, and explanations to help learners prepare for midterm exams, final exams, quizzes, and academic tests.
Which IoT application supports irrigation decisions?
Correct Answer: D. Smart agriculture
Which alert is useful in a temperature-monitoring IoT system?
Correct Answer: D. Notify when temperature crosses a threshold
Which is a common security measure for IoT communication?
Correct Answer: D. Use encrypted channels and authenticated endpoints
Which layer is responsible for user services such as REST or MQTT data exchange?
Correct Answer: A. Application layer
Which security goal protects data from unauthorized modification?
Correct Answer: A. Integrity
Which IoT application supports vehicle tracking?
Correct Answer: A. Fleet management
Which is an important consideration for IoT project design?
Correct Answer: A. Requirements, sensors, connectivity, data processing, and security
Which is a common maintenance task for IoT systems?
Correct Answer: A. Checking device connectivity and updating software
Which feature of MQTT helps reduce bandwidth for many receivers?
Correct Answer: B. Broker-based publish/subscribe distribution
Which security goal ensures services remain accessible when needed?
Correct Answer: B. Availability
Which IoT application supports patient vital monitoring?
Correct Answer: B. Smart healthcare