How would you optimize the performance of a RESTful API that serves large datasets?
- A. Use HTTP GET for all requests
- B. Implement pagination and filtering
- C. Remove all error handling for faster processing
- D. Use a single, monolithic server
B. Implementing pagination and filtering allows clients to request only the data they need, reducing the load on the server and improving performance. Options A, C, and D are not recommended practices and can lead to performance issues.
In Python, ____ is used to access the attributes and methods of a class.
- Class
- Dot notation
- Inheritance
- Object
In Python, you use the dot notation (.) to access the attributes and methods of a class. For example, object.attribute or object.method().
In Python, ____ is used to define a function that takes an arbitrary number of positional arguments.
- def *args
- def arguments
- def function
- def varargs
In Python, the syntax def function_name(*args) is used to define a function that can take an arbitrary number of positional arguments. The *args syntax allows you to pass a variable number of arguments to the function.
In Matplotlib, the ____ method is used to create a new figure object.
- create_figure
- figure
- new_figure
- plot
In Matplotlib, the figure method is used to create a new figure object. A figure object is like a canvas where you can add multiple subplots or axes to create complex plots with multiple elements. It is an essential step when working with Matplotlib.
In Matplotlib, the ____ method is used to set the labels of the x-axis.
- set_x_axis
- set_x_label
- set_xlabel
- x_labels
In Matplotlib, you use the set_xlabel method to set the label for the x-axis. This method allows you to specify the label that appears below the x-axis in your plot.
In NumPy, the ____ function is used to calculate the element-wise maximum of two arrays.
- max
- maximize
- maximum
- min
In NumPy, the maximum function is used to calculate the element-wise maximum of two arrays. It returns a new array containing the element-wise maximum values from the input arrays.
In NumPy, the ____ function is used to compute the inverse of a matrix.
- np.inverse()
- np.invert()
- np.linalg.inv()
- np.transpose()
In NumPy, the np.linalg.inv() function is used to compute the inverse of a matrix. This function is essential for various linear algebra operations in NumPy, such as solving linear equations.
In object-oriented programming in Python, ____ refers to the class that a class inherits from.
- base class
- parent class
- subclass
- superclass
In Python, the term "base class" refers to the class that a class inherits from. It's also commonly called a "parent class" or "superclass."
In object-oriented programming, ____ refers to the bundling of data and methods that operate on that data into a single unit.
- Abstraction
- Encapsulation
- Inheritance
- Polymorphism
In object-oriented programming, encapsulation refers to the concept of bundling data (attributes) and methods (functions) that operate on that data into a single unit, known as a class. This helps in data hiding and controlling access to an object's internals.
In Pandas, ____ is used to concatenate two or more DataFrames along a particular axis.
- combine
- concat
- join
- merge
In Pandas, the concat function is used to concatenate (combine) two or more DataFrames along a specified axis (either rows or columns). It is a powerful tool for combining data in various ways.