In RESTful API development, what does the acronym CRUD stand for?
- Call, Retrieve, Update, Destroy
- Connect, Read, Update, Disconnect
- Copy, Read, Update, Delete
- Create, Retrieve, Update, Delete
In RESTful API development, the acronym CRUD stands for Create, Retrieve, Update, Delete. These are the four basic operations that can be performed on resources in a RESTful API.
In Scikit-learn, ____ is the method used to train a model using the training data.
- fit
- train
- train_data
- train_model
In Scikit-learn, the fit method is used to train a machine learning model using the training data. This method takes the training data as input and adjusts the model's parameters to make predictions on new data.
In Scikit-learn, ____ is used to encode categorical variables into numerical format.
- Imputer
- LabelEncoder
- PrincipalComponentAnalysis
- RandomForest
In Scikit-learn, the LabelEncoder class is used to encode categorical variables into numerical format. It assigns a unique integer to each category, which can be useful when working with machine learning algorithms that require numerical input. This transformation is essential to handle categorical data effectively in many machine learning tasks.
In Scikit-learn, the ____ class is used for feature scaling.
- DecisionTree
- KMeans
- LinearRegression
- StandardScaler
In Scikit-learn, the StandardScaler class is used for feature scaling. Feature scaling is crucial in machine learning to ensure that all features have the same scale, preventing some features from dominating others during model training. StandardScaler standardizes features by removing the mean and scaling to unit variance.
In Scikit-learn, the ____ method is used to calculate the accuracy of the model on the test data.
- evaluate
- fit
- predict
- score
In Scikit-learn, the score method is used to calculate various metrics, including accuracy, to evaluate the performance of a machine learning model on test data. This method compares the model's predictions to the true labels and returns the accuracy score.
In Python, _____ is a special method used to overload the ‘+’ operator for custom objects.
- add
- overload
- plus
- sum
In Python, the __add__ method is used to overload the + operator for custom objects. This allows you to define custom behavior when two objects of your class are added together using the + operator.
In Python, a ____ is a file containing Python definitions and statements intended for use in other Python programs.
- library
- module
- package
- script
In Python, a module is a file containing Python definitions and statements. These modules are intended for use in other Python programs to organize code into reusable components.
In Python, a ____ is a function that wraps another function, modifying its behavior.
- class
- decorator
- generator
- module
In Python, a decorator is a function that wraps another function, allowing you to modify or extend its behavior without changing its source code. Decorators are commonly used for tasks such as adding logging, authentication, or caching to functions.
In Python, a metaclass is a subclass of _____.
- class
- function
- object
- type
In Python, a metaclass is a class that defines the behavior of other classes. It is always a subclass of the built-in type class. A metaclass is responsible for creating and initializing new classes.
In Python, how do you define a method inside a class to access and modify the objects’ attributes?
- def method(self):
- function method():
- method = def():
- self.method = function():
In Python, to define a method inside a class that can access and modify object attributes, you use the def method(self): syntax. The self parameter allows you to access and manipulate the object's attributes within the method.