How do you implement socket programming in python? (AI)

Question 1

What Python module is the core of socket programming?

Answer 1

The socket module.

Question 2

What is the necessary first line of code to use sockets in a script?

Answer 2

import socket

Question 3

What function is used to create a new socket object?

Answer 3

socket.socket()

Question 4

What argument in socket.socket() specifies the IPv4 address family?

Answer 4

socket.AF_INET (Address Family: Internet)

Question 5

What argument specifies the connection-oriented TCP protocol?

Answer 5

socket.SOCK_STREAM (Stream Socket)

Question 6

What argument specifies the connectionless UDP protocol?

Answer 6

socket.SOCK_DGRAM (Datagram Socket)

Question 7

What is the very first mandatory step for a server socket?

Answer 7

s.bind((host, port)) (Assigning its address and port)

Question 8

For s.bind(), what host value listens on all available network interfaces?

Answer 8

'0.0.0.0' or an empty string ('')

Question 9

For s.bind(), what host value listens only on the local machine (localhost)?

Answer 9

'127.0.0.1'

Question 10

What method puts the server socket into passive listening mode?

Answer 10

s.listen(backlog)

Question 11

What does the backlog argument in s.listen() control?

Answer 11

The maximum number of queued (unaccepted) client connections.

Question 12

What method blocks and waits for a new client connection on the server?

Answer 12

conn, addr = s.accept()

Question 13

What two objects does s.accept() return?

Answer 13

A new connection socket (conn) and the client’s address tuple (addr).

Question 14

What method does a client use to initiate a connection to a server?

Answer 14

s.connect((host, port))

Question 15

What method sends data over a connected socket?

Answer 15

conn.send(data) (or s.send())

Question 16

What method receives data, and what argument specifies the buffer size?

Answer 16

conn.recv(bufsize) (The bufsize is the max number of bytes to receive)

Question 17

What format must data be in before being sent with s.send()?

Answer 17

Bytes (b'...'). You must use .encode().

Question 18

What must you do with the data received from s.recv() to read it as text?

Answer 18

Use the .decode() method (e.g., data.decode('utf-8')).

Question 19

What method is used by both client and server to properly release the socket resource?

Answer 19

s.close()

Question 20

What Python keyword is highly recommended for automatically managing the closing of a socket?

Answer 20

The with statement (used for reliable cleanup).