IoT and Data Structures Quiz

What does IoT stand for?

• Internet of Tools

• Internet of Things

• Integrated Online Technology

• Internet of Transport

Which of the following data structures is used to implement recursion?

• Queue

• Stack

• Linked List

• Tree

What is cross-validation used for in machine learning?

• To avoid underfitting

• To evaluate the model’s performance by splitting the data into multiple subsets

• To visualize the model’s performance

• To increase the size of the training data

Which sensor would be used to detect light in an IoT application?

• Temperature sensor

• Humidity sensor

• LDR (Light Dependent Resistor)

• PIR sensor

In JavaScript, what will be the output of typeof NaN?

• ‘number’

• ‘string’

• ‘object’

• ‘undefined’

Which IoT layer is responsible for data storage and processing?

• Perception layer

• Network layer

• Application layer

• Cloud layer

What is the time complexity of accessing an element in a hash table?

• O(1)

• O(log n)

• O(n)

• O(n^2)

Which of the following is a supervised learning algorithm?

• K-Means Clustering

• Linear Regression

• Principal Component Analysis

• DBSCAN

What is a “smart city” in the context of IoT?

• A city with high-speed internet

• A city that utilizes IoT technology for better management

• A city with no internet

• A city known for its technical universities

Which HTTP status code indicates a resource has been permanently moved to a new URL?

• 301

• 302

• 404

• 500