round 3

Which of the following is an example of an unsupervised learning algorithm?

• Linear regression
• Decision tree
• K-means clustering
• Support vector machine

Which of the following is used to split text into individual words or phrases in NLP?

• Stemming

• Tokenization

• Lemmatization

• Named Entity Recognition

What is overfitting in machine learning?

• Overfitting in machine learning is when a model performs well on training data but poorly on new data due to excessive complexity.
• Overfitting happens when a model is trained on too little data.
• Overfitting is when a model performs equally well on both training and new data.
• Overfitting occurs when a model is too simple and cannot capture the underlying patterns.

In classification, what does the term "class label" refer to?

• The name of the model

• The output of a regression model

• The predicted category of an input

• The input features of a modeln.

What does PCA stand for in machine learning?

• Principal Component Algorithm
• Primary Component Analysis
• Principal Coordinate Analysis
• Principal Component Analysis

What is the primary function of a router in a network?

• The primary function of a router is to direct data packets between different networks.
• To store data packets for later use.
• To provide wireless connectivity to devices.
• To amplify signals in a network.

What is the function of a firewall in a network?

• To store data for backup purposes
• To provide internet access to all devices
• To monitor and control network traffic to protect against unauthorized access and threats.

• To increase the speed of the network

Which of the following is a common method for securing wireless networks?

• WEP (Wired Equivalent Privacy)

• WPA (Wi-Fi Protected Access)

• WPA2

• Both b and c

Which of the following is a type of supervised learning?

• K-Means Clustering

• Clustering
• Classification
• Dimensionality Reduction

What is the purpose of the ICMP protocol?

• To send error messages and operational information for network diagnostics.

• To establish direct connections between devices.
• To manage bandwidth allocation in networks.
• To encrypt data for secure transmission.