1. A professor sends a question paper of a test to all his students as an email attachment. He shared his public key on Canvas which students can easily download. How will you design the system so that students will be able to verify first if the question paper was originally sent by the professor, and it was not altered by someone else? The file should be viewable by anyone regardless of having the public key of the professor.   2.5 points 2. Now, the professor needs to send an individual student all her test grades as an email attachment (in a single file). Assume that the professor has the public keys of all of his students, and no one except the intended student should be able to open the file in a readable format. How will you design the system to meet these requirements. 2.5points Take a screenshot of your answers and upload them here.

You are assessing ambulation of a 3-year-old child with a rare genetic mutation. When ambulating short distances without orthotic support or an assistive device, the child demonstrates increased ankle dorsiflexion and knee flexion in stance. Which orthotic support is MOST appropriate to support ambulation for this patient?

A patient is being fitted for a knee-ankle-foot orthosis (KAFO) to enhance walking. They present with right-sided weakness, including reduced strength in the quadriceps and ankle dorsiflexors, as well as limited dexterity in the right hand. Which device would be the MOST suitable for this patient?

Which of the following orthoses is MOST appropriate for limiting knee hyperextension in stance phase of gait?

A physical therapist is considering adding camber to the patient’s wheelchair for improved mobility. What is the PRIMARY benefit of adding camber to a wheelchair?

Which of the following is the MOST appropriate indication for scoliosis bracing in an adolescent patient?

Diffie–Hellman is used for Symmetric Key Distribution.

Which attack does pose a threat to the IoT trust security by making nodes to randomly perform positive and negative actions in order to avoid being rated as a risky?

Ciphertext is the readable message or data that is fed into the algorithm as input.

In Distributed Denial of Service (DDoS) attack, the attacker uses multiple systems to generate attacks.