Basics

Question 1

Client-Server architecture

Answer 1

Ports:
- It’s an integer between 0 and 65535
- Ports 0-1023 are reserved for system ports, also known as well-known ports

Question 2

IP Protocol

Answer 2

IP packets:
- They are transported through the internet
- They are divided into two parts: a header (which contains the size, IP version, source, destination, and other information) and data
- The data size is limited to 2^16 bytes
- The data part contains the TCP header, which helps to know the order of multiple sent packets

Question 3

TCP Protocol

Answer 3

• Built on top of the IP protocol and more functional
• Allows to send long pieces of data compared to the data part size of IP packets
• A handshake is an interaction between two machines previous a connection establishment

Question 4

HTTP Protocol

Answer 4

• Built on top of TCP protocol
• Introduces a higher level of abstraction than TCP because helps software engineers to develop applications easier to maintain
• Based on the request-response paradigm

Question 5

Storage options

Answer 5

• Disk, refers to the following types:
• HDD: used for infrequently accessed data and for data stored for a long time
• SSD: faster and costs more
• Memory