CPNT 217 Socket Programming

Question 1

What is socket programming?

Answer 1

A method for creating network-enabled applications that allow devices to communicate over a network.

Question 2

What does a socket represent?

Answer 2

An endpoint of a network connection

Question 3

What are the two types of sockets in socket programming?

Answer 3

Client sockets and server sockets.

Question 4

What is the role of a client socket?

Answer 4

To initiate a connection with a server socket.

Question 5

What is the role of a server socket?

Answer 5

To listen for incoming connections from client sockets.

Question 6

What is the first step in the socket programming procedure?

Answer 6

Creating a socket object and specifying the protocol family

Question 7

What does binding a socket involve?

Answer 7

Associating the socket with a specific IP address and port number.

Question 8

What happens when a server socket accepts a connection?

Answer 8

It creates a new socket object to handle the connection.

Question 9

What can both client and server sockets do after a connection is established?

Answer 9

Send and receive data through the socket.

Question 10

What is the final step in the socket programming process?

Answer 10

Closing the connection to release resources.

Question 11

Why are sockets widely used in network programming?

Answer 11

They provide reliable, flexible, efficient way for devices to communicate over a network

Question 12

What is platform independence in socket programming?

Answer 12

Sockets can run on most modern operating systems without modification.

Question 13

What protocols do sockets support?

Answer 13

A wide range including TCP/IP, UDP and HTTP

Question 14

What type of applications are TCP sockets ideal for?

Answer 14

Applications requiring reliable data transfer

Question 15

What type of applications are UDP sockets ideal for?

Answer 15

Applications requiring fast data transfer

Question 16

What is the socket module in Python used for?

Answer 16

Creating and using sockets for network programming.

Question 17

What is flow control in TCP?

Answer 17

Mechanisms to manage the rate of data transmission and avoid network congestion.

Question 18

What is congestion control in TCP?

Answer 18

Mechanisms to prevent network congestion during data transmission.

Question 19

What is the significance of the SOCK_DGRAM parameter in Python?

Answer 19

It indicates that a UDP socket is being created.

Question 20

What is the significance of the SOCK_STREAM parameter in Python?

Answer 20

It indicates that a TCP socket is being created.

Question 21

What does it mean for a protocol to be connectionless?

Answer 21

Data can be sent without establishing a dedicated connection first.

Question 22

What are some common applications of socket programming?

Answer 22

Chat applications

Question 23

What is the main advantage of using sockets for communication?

Answer 23

They provide a robust and versatile programming interface for reliable communication.

Question 24

How do you create a TCP socket in Python?

Answer 24

Use the code: tcp_socket = socket.socket(socket.AF_INET)

Question 25

How do you create a UDP socket in Python?

Answer 25

Use the code: udp_socket = socket.socket(socket.AF_INET)

Question 26

What does AF_INET specify when creating a socket?

Answer 26

It specifies the protocol family for IPv4.

Question 27

What does SOCK_STREAM specify when creating a socket?

Answer 27

It specifies that the socket is for TCP.

Question 28

What is the purpose of the bind() method in socket programming?

Answer 28

It binds the socket to a specific IP address and port.

Question 29

What is the default IP address used in the example for the server?

Answer 29

'127.0.0.1'

Question 30

What does the listen() method do in a socket server?

Answer 30

It allows the server to listen for incoming connections.

Question 31

What is the purpose of the recv() method in socket programming?

Answer 31

It is used to receive data from the socket.

Question 32

What does the send() method do in socket programming?

Answer 32

It is used to send data over the socket.

Question 33

What is SSL in the context of socket programming?

Answer 33

SSL (Secure Sockets Layer) is a protocol for secure communication over a network.

Question 34

What are the advantages of using SSL?

Answer 34

Encryption, authentication, integrity

Question 35

What has SSL been superseded by?

Answer 35

Transport Layer Security (TLS).

Question 36

What is the main feature of WebSockets?

Answer 36

It enables bidirectional communication between a client and a server.

Question 37

How does WebSockets differ from regular HTTP connections?

Answer 37

WebSockets allow ongoing real time communication between client and server

Question 38

What should you do to handle errors in socket programming?

Answer 38

Use try-except blocks to catch and handle exceptions.

Question 39

Why is it important to close sockets properly?

Answer 39

To prevent resource leaks and ensure the socket is released for other applications.

Question 40

What are some security risks in socket programming?

Answer 40

Buffer overflows, injection attacks, and man-in-the-middle attacks

Question 41

What is a best practice for managing sockets in Python?

Answer 41

Use context managers to handle the opening and closing of sockets.

Question 42

What is the purpose of the print statements in debugging socket programs?

Answer 42

To output debug information at strategic points in the code.

Question 43

What is the role of the accept() method in a socket server?

Answer 43

It accepts a connection from a client.

Question 44

What is the maximum amount of data that can be received in the example?

Answer 44

1024 bytes.

Question 45

What is one way to analyze network traffic when debugging?

Answer 45

Use tools like Wireshark.

Question 46

What is the significance of using TLS/SSL in socket programming?

Answer 46

To encrypt sensitive data and avoid security risks.

Question 47

What is the main function of the socket module in Python?

Answer 47

To create and manage sockets for network communication.

Question 48

What happens if you do not handle errors in socket programming?

Answer 48

It can lead to crashes and unexpected behavior of the program.

Question 49

What is the first step in setting up a socket server?

Answer 49

Create a socket object using the socket() method.

Question 50

What is the output of the server when a client connects?

Answer 50

'Client connected:' followed by the client's address.

Question 51

What should you do after sending data back to the client?

Answer 51

Close the client socket using client_socket.close().