Application Development - 1 · End Term · May 2025 · FN

You're designing an API to update a user's profile picture but your database has 4 records in a row, profile picture is one of them. Which HTTP method is most appropriate?

What is the correct sequence of operations when receiving a form in Flask?

Consider the following statements and choose the correct option **Statement 1**: It is mandatory to implement server-side validations and client-side validations. **Statement 2**: Server-side validations can be implemented using HTML5.

A user downloads a 10 MB file from a server with 5 Mbps speed. How long does it approximately take?

Consider the following Python script that processes command line arguments and uses Jinja2 templates. python: app.py import sys from jinja2 import Template pre_message = sys.argv[1] if len(sys.argv) > 1 else “" pre_language = sys.argv[2] if len(sys.argv) > 2 else “unknown” post_message = pre_message.strip().lower().replace(" ", "_") post_language = pre_language.capitalize() template_string = """ <div> <h1>{{ post_message | upper }}</h1> <p>Message: {{ post_message }}</p> <p>Language: {{ post_language }}</p> <p>Count: {{ pre_message | length }}</p> </div> template = Template(template_string) output = template.render( pre_message = pre_message, post_message = post_message, post_language = post_language ) print (output) If the script is run with the command: bash python app.py " Hello World " "python" What will be the output for the following template variables?

Which statements about REST API design are correct?

Based on the above data, answer the given subquestions.

Based on the above data, answer the given subquestions.

Consider the following Flask-SQLAIchemy models for a library management system: File: models.py from flask_sqlalchemy import SQLAlchemy db = SQLAlchemy() class Library(db.Model) : id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(10@), unique=True, nullable=False) location = db.Column(db.String(200), nullable=False) books = db.relationship('Book', backref='library_ref', lazy=True) class Author(db.Model): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(80), nullable=False) email = db.Column(db.String(120), unique=True, nullable=True) books = db.relationship('Book', backref="author_ref’, lazy=True) class Book(db.Model) : id = db.Column(db.Integer, primary_key=True) title = db.Column(db.String(150), nullable=False) isbn = db.Column(db.String(13), unique=True, nullable=False) library_id = db.Column(db.Integer, db.ForeignKey('library.id'), nullable=False) author_id = db.Column(db.Integer, db.ForeignKey('author.id'), nullable=False) is_available = db.Column(db.Boolean, default=True)

Based on the above data, answer the given subquestions.

Which of the following statements about the database schema and model relationships is correct?

Consider the following Flask-SQLAIchemy models for a library management system: File: models.py from flask_sqlalchemy import SQLAlchemy db = SQLAlchemy() class Library(db.Model) : id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(10@), unique=True, nullable=False) location = db.Column(db.String(200), nullable=False) books = db.relationship('Book', backref='library_ref', lazy=True) class Author(db.Model): id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(80), nullable=False) email = db.Column(db.String(120), unique=True, nullable=True) books = db.relationship('Book', backref="author_ref’, lazy=True) class Book(db.Model) : id = db.Column(db.Integer, primary_key=True) title = db.Column(db.String(150), nullable=False) isbn = db.Column(db.String(13), unique=True, nullable=False) library_id = db.Column(db.Integer, db.ForeignKey('library.id'), nullable=False) author_id = db.Column(db.Integer, db.ForeignKey('author.id'), nullable=False) is_available = db.Column(db.Boolean, default=True)

Based on the above data, answer the given subquestions.