GS Lab Senior Software Engineer Interview Questions, Process, and Tips

Prototypes and functionality of socket, bind, listen, accept & connect

• socket() - creates a new socket

• bind() - assigns a local address to a socket

• listen() - puts a socket in a passive mode

• accept() - accepts a connection on a socket

• connect() - initiates a connection on a socket

Handshaking mechanism in TCP communication is a process of establishing and terminating a connection between two devices.

• TCP uses a three-way handshake mechanism to establish a connection.

• The three steps involved in the handshake are SYN, SYN-ACK, and ACK.

• During the handshake, the devices exchange information about the initial sequence numbers, window sizes, and other parameters.

• The handshake ensures that both devices ...read more

TCP is a connection-oriented protocol while UDP is connectionless. TCP is used for reliable data transfer while UDP is used for real-time applications.

• TCP provides reliable, ordered, and error-checked delivery of data while UDP does not guarantee any of these

• TCP is used for applications that require high reliability and transmission speed, such as email, file transfer, and web browsing

• UDP is used for real-time applicat...read more