IIT M FOUNDATION ET1 EXAM QPF2 S2 03 Sep - 03 Sep 2023

index.html

```html
<form action="/">
    <label for="fname">What is your first name?</label><br>
    <input type="text" name="fname" id="fname"><br>
    <input type="submit" value="Submit">
</form>
```

A web browser window is displayed.
The title bar shows "Form" on the left and "Private browsing" in the center.
The address bar shows "localhost:5000".
The main content area displays:
"What is your firstname?"
Below this is an empty text input field.
Below the text input field is a button labeled "Submit".

Which HTTP request would be sent to the server if the user enters "Mahesh" into the text box and clicks submit?

Consider the following flask resource created using flask_restful.

```python
from flask import Flask, request
from flask_restful import Api, Resource, reqparse

app = Flask(__name__)
api = Api(app)

parser = reqparse.RequestParser()
parser.add_argument("val")

class RestApi(Resource):
    def post(self, val):
        arg1 = parser.parse_args()
        arg2 = request.args
        return {
            "value_1": arg1["val"],
            "value_2": arg2["val"],
            "value_3": val
        }

api.add_resource(RestApi, "/api/games/<val>")
app.run(debug = True)
```

If the application is running locally on http://127.0.0.1:5000, What will be the output on the terminal for the command:

`curl http://127.0.0.1:5000/api/games/cricket?val=soccer -d "{\"val\":\"tennis\"}" -X POST -H "Content-Type: application/json"`

test_file.py

```python
import pytest

def square(x):
    sum = 0
    for counter in range(x):
        sum += x
    return sum

@pytest.mark.marker1
def testcase_1():
    assert square(11) == 121

@pytest.mark.marker2
def testcase_2():
    assert square(8) == 8

@pytest.mark.marker3
def testcase_3():
    assert square(5) == 36
```
```
======== 1 passed, 2 deselected, 3 warnings in 0.02s ========
```

The hexadecimal equivalent of the IPv4 address 192.168.72.101 would be
_________

CSS Code:

```css
.one{color: blue;}
.two{color: red !important;}
.three{color: green;}
```
HTML Code:

```html
<!DOCTYPE html>
<html>
<head>
    <title>Document</title>
    <link href="style.css" rel="stylesheet">
    <style>
        body{background-color: aqua; text-align: center;}
        h2{color: violet !important ;}
    </style>
</head>
<body style="background-color:lavender;" >
    <h2 style="color: blue;">Welcome to IIT</h2>
    <p class="one">My content 1 </p>
    <p class="two" style="color: brown;">My content 2</p>
    <p class="three">My content 3</p>
</body>
</html>
```

Consider the following models Student and Project corresponding to tables student and project in SQLite database.

```python
class Student(db.Model):
    id = db.Column(db.Integer(), primary_key = True)
    name = db.Column(db.String(), unique = True)

class Project(db.Model):
    id = db.Column(db.Integer(), primary_key = True)
    title = db.Column(db.String(), unique = True)
    course = db.Column(db.Integer(), db.ForeignKey("course.id"))
```

Based on the model schemas, what relationship do the classes Student and Project share?

```python
from flask import Flask
from flask_restful import Api, Resource

app = Flask(__name__)
api = Api(app)

class MyApi(Resource):
    def get(self, get):
        return {"greet":"Hello from GET Api!"}

    def put(self):
        return {"greet":"Hello from PUT Api!"}

api.add_resource(MyApi, '/api/<get>', '/api/put')

app.run()
```

If this application is running locally on http://127.0.0.1:5000, which of the following curl commands will throw an error?

1. `curl http://127.0.0.1:5000/api/get -X get`
2. `curl http://127.0.0.1:5000/api/put -X put`
3. `curl http://127.0.0.1:5000/api/post -X get`
4. `curl http://127.0.0.1:5000/api/get -X put`

```c
int foo(int x, int y)
{
    int z = 0;
    if((x > 0) && (y > 0))
    {
        z = x;
    }
    return z;
}
```

| Column A | Column B |
|---|---|
| 1. Test invokes foo() at least once | a. Condition coverage |
| 2. foo(1,1) | b. Branch coverage |
| 3. foo(1,1) and foo(1,0) | c. Function coverage |
| 4. foo(0,1) and foo(1,0) | d. Statement coverage |

| A. Regression testing | 1. Beta Testing |
|---|---|
| B. User Acceptance testing | 2. One step beyond integration Testing |
| C. System testing | 3. Simulates actual user interaction, allows to script browser |
| D. System testing Automation | 4. Type of testing that runs after every change to ensure that the change introduces no unintended breaks. |

| Id | Name | Designation | Gender | Salary |
|---|---|---|---|---|
| 1 | Raji | Headmaster | Female | 4500 |
| 2 | Ram | Teacher | Male | 5000 |
| 3 | Raveena | Teacher | Female | 3000 |
| 4 | Reshma | Technical staff | Female | 2000 |
| 5 | Ravi | Teacher | Male | 1000 |

app.py

```python
from flask import Flask, render_template
app = Flask(__name__)
@app.route('/')
def home():
    return render_template('home.html')
app.run(debug=True)
```

home.html

```html
{% extends "base.html" %}
{% block content %}
<h3>Welcome to MAD I</h3>
{% endblock %}
```

base.html

```html
<!DOCTYPE html>
<html lang="en">
<head>
    <title>IITM</title>
</head>
<body>
    <h1 style="color: violet;"> IITM BS Degree </h1>
    {% block content %}
    {% endblock %}
</body>
</html>
```

What will be the rendered output for base URL if flask app is running locally on
http://localhost:5000

```sql
CREATE TABLE car (
    car_id INTEGER NOT NULL,
    model INTEGER NOT NULL,
    name VARCHAR(50),
    mfd_date DATETIME NOT NULL,
    description VARCHAR,
    PRIMARY KEY (car_id),
    UNIQUE (model),
    UNIQUE (name)
)
```

Which of the following flask_sqlalchemy models will create exactly the same table as created by the above SQL command?

```python
from string import Template

statement = "The four major operations on the database are $c, $r, $u and $d."

temp = Template(statement)

print(=== OUTPUT ===)
```

Which of the following statements, when substituted in place of === OUTPUT ===, will not throw a KeyError?

Consider the following TodoSimple resource class created using flask_restful.

```python
from flask import Flask, request
from flask_restful import Resource, Api

app = Flask(__name__)
api = Api(app)

class TodoSimple(Resource):
    def get(self, todo_id):
        return {"todo_id": todo_id}

    def put(self):
        todo_id = request.args.get("todo_id")
        return {"todo_id": todo_id}

app.run()
```

Which of the following statements given below will correctly map the resource URLs with the TodoSimple resource class.

This is a 2D line graph with a horizontal x-axis labeled "Time (Hours)" and a vertical y-axis labeled "BandWidth Megabits/s".

The x-axis ranges from 0 to 24, with major tick marks at 0, 4, 8, 12, 14, 16, 20, and 24. Vertical dashed lines extend from each of these major tick marks upwards.

The y-axis ranges from 0 to 12, with major tick marks at 0, 2, 4, 6, 8, 10, and 12.

There are three horizontal colored lines at the top of the graph, representing users:
- A blue line labeled "user 1" extends from x=0 to x=4, at y=11.
- A yellow line labeled "user 2" extends from x=8 to x=14, at y=11.
- A green line labeled "user 3" extends from x=16 to x=24, at y=11.

An orange step-function line is plotted across the graph:
- From x=0 to x=4, the line is at y=8.
- From x=4 to x=8, the line is at y=10.
- From x=8 to x=12, the line is at y=6.
- From x=12 to x=16, the line is at y=8.
- From x=16 to x=20, the line is at y=2.
- From x=20 to x=24, the line is at y=4.

```python
from flask import Flask, request
from flask_restful import Resource, Api

app = Flask(__name__)
api = Api(app)

student_info = {"name": "Rahul", "Roll No":"12d2000678",
"Email":"onlinedegree.iitm.ac.in"}

class Student(Resource):
    def put(self):
        data = request.json
        student_info.update(data)
        return student_info

    def delete(self):
        student_info.popitem()
        return "success", 200

api.add_resource(Student, '/')

app.run()
```

If the above application is running on "http://127.0.0.1:5000" then what will be the final output on
terminal on executing these two curl commands in the order mentioned?
1: `curl -X DELETE 'http://127.0.0.1:5000'`

2: `curl -X PUT -H "Content-Type: application/json" -H "Accept-Type:
application/json" -d '{"Roll No":"12f2000555", "Email":
"ds.study.iitm.ac.in"}' 'http://127.0.0.1:5000/'`

```python
from jinja2 import Template
persons=[
    {"Gender":"Male", "Age":40, "Name":"John"},
    {"Gender":"Female", "Age":16, "Name":"Samantha"},
    {"Gender":"Male", "Age":20, "Name":"Kim"}
]

t="""
<ul>
{% for group in persons|groupby('Gender') %}
    <li>
        {{ group.grouper }}
        <ul>
        {% for person in group.list %}
            <li>{{ person.Name }} is {{ person.Age }} years old</li>
        {% endfor %}
        </ul>
    </li>
{% endfor %}
</ul>
"""

temp=Template(t)
print(temp.render(persons=persons))
```

Consider a function func, and a set of test cases given below.
Filename: test_file.py

```python
import pytest
def func(x,y):
    out = x+y**2
    return out

class Test_class0():
    def test_case1(self):
        assert func(1,2) == 5

    def case_test2(self):
        assert func(2,3) == 10

    def test_case3(self):
        assert func(6,2) == 8

class Test_class1():
    def test_case1(self):
        assert func(5,2) == 9

    def case_test2(self):
        assert func(4,3) == 14
```

What will be the output on the terminal for the command below?
pytest test_file.py -k Test_class0

```python
def decor(func):
    def wrapper(x):
        y=func(x)
        return x*y
    return wrapper

@decor
def output(x, optional="hello world!"):
    return x, optional

print(output(5))
```

```python
from flask import Flask
app = Flask(__name__)

@app.route('/user/<username>')
def show_user(username):
    return f'Hello {username} !'

@app.route("/hello/user")
def hello():
    return "Hello, user!"

@app.route("/user/")
def index():
    return "Hello user"
if __name__ == "__main__":
    app.run(debug=True)
```

If the application is running locally on http://127.0.0.1:5000 then map the URLs in Column A with their rendered outputs in Column B.

| | Column A | | Column B |
|---|---|---|---|
| a | http://localhost:5000/hello/user | 1 | User hello ! |
| b | http://localhost:5000/user/hello | 2 | Hello user ! |
| c | http://localhost:5000/user/user | 3 | Hello hello ! |
| d | http://localhost:5000/user// | 4 | Hello user |
| | | 5 | Hello, user! |
| | | 6 | Not Found |

```python
from flask import Flask, render_template, request
app = Flask(__name__)

@app.route('/')
def out():
    val = request.args

    if val['num'] == '':
        return "<h1>Enter a valid number</h1>"
    elif val['num'].isalpha()==True:
        return "<h1>Invalid number</h1>"
    else:
        out = (val['num']) + (val['num'])
        return f'<h1>{out}</h1>'

if(__name__ == "__main__"):
    app.run(debug=True)
```
If this flask app is running locally on http://localhost:5000, what is the output for the following URL?
For input: http://localhost:5000/?num=343

```python
from flask import Flask, request
from flask_restful import Resource, Api, fields, marshal, marshal_with

app = Flask(__name__)
api = Api(app)

class User:
    def __init__(self, id, username, email):
        self.id=id
        self.username=username
        self.email=email

output={"id": fields.Integer,"username": fields.String,"email": fields.String}

## Resource Class Here ==

api.add_resource(Userapi, '/')
if __name__ == '__main__':
    app.run()
```

What code should be written in place of `## Resource Class Here ==`, so that we get;
```json
{
    "id": 1,
    "username": "iitm",
    "email": "bs@ds.study.iitm.ac.in"
}
```
as output on running the command `curl -X GET 'http://127.0.0.1:5000'` in the terminal?