Q$1.$ Identify different layers of the OSI model from the following analogy

Student: Hello Sir, Can I come for a consultation?

Teacher: Yes, I will be at my office from $9\mathrm{.}30-12\mathrm{.}30.$ Please come within the time frame. Studnet: Okay, I$$ll meet then. $(1).............$

At Consultation

Teacher: I actually teach $2$ courses, CSE$320$ & CSE$220,$ for which course do you have confusions? Student: CSE$220,$ Data Structure.

Teacher: OK$,$ let$$s discuss it$.(2).............$

Student: Sir I can understand Lab task $4$ but can not convert it to code properly, can you help me writing the code?

Teacher: Let$$s write a python program. $(3).............$

Student: Thank you sir.

Teacher: Actually you can break the problem into $3$ parts. Create an array first, then store the unique hobbies to it$.$ Finally count the frequency of each hobby. $(4).............$

Students: Wow, the task looks easy now. I will write the code myself and send it to you using slack for reviewing.

Teacher: Great. See you next class. $(5).............$