Selected MCQ

Current Question
Which layer of the OSI model handles data encryption and session management?
  • A. Network
  • B. Transport
  • C. Application
  • D. Presentation
Correct Answer: D
Explanation:
The Presentation layer (layer 6) deals with data encryption and formatting.
Related Question 1
Which concept involves using sensor data to create a 3D model of a city or facility?
  • A. Digital wallet
  • B. Digital twin
  • C. Virtual machine
  • D. Quantum replica
Correct Answer: B
Explanation:
Digital twins can model entire environments or systems in real-time using sensor data.
Related Question 2
Which concept refers to a model's ability to perform well on unseen data?
  • A. Underfitting
  • B. Overfitting
  • C. Generalization
  • D. Normalization
Correct Answer: C
Explanation:
Generalization is a model's ability to apply learned patterns to new data.
Related Question 3
Which of the following is an example of a relational database management system (RDBMS)?
  • A. MongoDB
  • B. Cassandra
  • C. MySQL
  • D. Redis
Correct Answer: C
Explanation:
MySQL is a popular relational database system.
Related Question 4
Which learning approach would you use if you have labeled data to train a model to predict outcomes?
  • A. Supervised learning
  • B. Unsupervised learning
  • C. Reinforcement learning
  • D. Deep learning
Correct Answer: A
Explanation:
Labeled data used to predict outcomes corresponds to supervised learning.
Related Question 5
In natural language processing, which model is specifically designed to handle sequential data by maintaining a hidden state that carries information through steps?
  • A. Convolutional Neural Network (CNN)
  • B. Recurrent Neural Network (RNN)
  • C. Support Vector Machine (SVM)
  • D. Decision Tree
Correct Answer: B
Explanation:
RNNs are designed for sequential data, with hidden states capturing information across sequence elements.