Please use the following scenario to answer the next two questions. Dr. Huang, a biological psychologist, is planning a study that involves watching college students complete complicated puzzles in same-sex pairs. He will hook the participants up to physiological monitors to measure their heart-rate and stress levels during the observation. Two research assistants with stay in the room with the participants. Each assistant will record behavioral data about the interactions between participants.

See the scenario above: Dr. Kasimi asks his participants to provide informed consent. Doing this is adhering to which principle of the Belmont Report?

Given the following code, answer the questions.     a) Analyze each part of the code and explain the present weaknesses (10 points).   b) Rewrite or describe how to modify the code to fix the previous weakness (10 points).  

You are analyzing the HTTP communication between a web browser and a RESTful API for an online bookstore. A user requests information about a book with ISBN “978-0321765723” using the endpoint /books/978-0321765723. Here are the captured requests and responses:   Request: GET /books/978-0321765723 HTTP/1.1 Host: api.bookstore.example.com User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Firefox/91.0 Accept: application/json Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate, br Connection: keep-alive   Response: HTTP/1.1 200 OK Date: Tue, 26 Oct 2023 14:30:00 GMT Content-Type: application/json Content-Length: 250 Connection: keep-alive {   “isbn”: “978-0321765723”,   “title”: “Clean Code: A Handbook of Agile Software Craftsmanship”,   “author”: “Robert C. Martin”,   “price”: 34.99,   “available”: true }   What is the function of the “Content-Length: 250” header in the response?

Given the following code, answer the questions.     a) Please explain which feature you can add to mitigate the CSRF vulnerability and ensure that the cookie is inaccessible to JavaScript, preventing it from being accessed through document.cookie, and the cookie is only sent over HTTPS connections (15 points).   b) Fix the previous code by adding the features required to protect the system (10 points).

Accessing Nested Data Structures Given the following list of dictionaries where each dictionary contains a key “name” and a key “grades” (which is a list of integers), write a Python code snippet to access and print the second grade of the dictionary where “name” is “Alice”. students = },                 {“name”: “Bob”, “grades”: }  ]

Importing and Using a Function from a Library Write a Python code snippet that imports the sqrt function from the math library and uses it to compute the square root of 16.

 Function Creation with Default Parameter Write a Python function named greet that accepts three parameters: first_name, last_name, and greeting (which should have a default value of “Hello”). The function should print a greeting message combining these parameters.

if/elif/else Structure Construct a Python code snippet using an if/elif/else structure to categorize a variable score into three categories: if the score is above 80, print “High”; if the score is between 50 and 80 (inclusive), print “Medium”; and if the score is below 50, print “Low”.

In NumPy, the function np.arange(start, stop, step) generates an array with spaced values.