004.03.Introduction-to-Sockets - EmbLogic https://www.emblogic.com/forum/categories/004-03-introduction-to-sockets/feed.rss Thu, 13 Aug 26 20:14:37 +0530 004.03.Introduction-to-Sockets - EmbLogic en-CA Termux https://www.emblogic.com/forum/discussion/1977/termux Wed, 12 Feb 2025 20:45:33 +0530 pravjot 1977@/forum/discussions The client would be build and executed on termux on andriod device.]]> 1. Describe the difference between connection-oriented and connectionless communication. https://www.emblogic.com/forum/discussion/1960/1-describe-the-difference-between-connection-oriented-and-connectionless-communication- Sat, 12 Oct 2024 06:11:30 +0530 pravjot 1960@/forum/discussions 1. Describe the difference between connection-oriented and connectionless communication. How does it affect network application design?
Explain how connection-based (e.g., TCP) vs connectionless (e.g., UDP) impacts the way applications are built, especially for data reliability.
]]> 2. What are sockets in network programming https://www.emblogic.com/forum/discussion/1959/2-what-are-sockets-in-network-programming Sat, 12 Oct 2024 06:11:14 +0530 pravjot 1959@/forum/discussions 2. What are sockets in network programming, and how are they used to facilitate communication between systems?
Explain: Basic understanding of socket programming concepts.
]]> 3. Explain the purpose of the `bind()` system call in socket programming. https://www.emblogic.com/forum/discussion/1958/3-explain-the-purpose-of-the-bind-system-call-in-socket-programming- Sat, 12 Oct 2024 06:10:57 +0530 pravjot 1958@/forum/discussions 3. Explain the purpose of the `bind()` system call in socket programming. In which scenarios would a client application need to use `bind()`?
Focus: Knowledge of `bind()` in both server and client contexts.
]]> 4. How does the `select()` function help manage multiple socket connections in a server? https://www.emblogic.com/forum/discussion/1957/4-how-does-the-select-function-help-manage-multiple-socket-connections-in-a-server Sat, 12 Oct 2024 06:10:42 +0530 pravjot 1957@/forum/discussions 4. How does the `select()` function help manage multiple socket connections in a server?
Focus: Multiplexing, non-blocking I/O, handling multiple clients in a scalable server.
]]> 5. What are the key differences between `send()` and `sendto()`? https://www.emblogic.com/forum/discussion/1956/5-what-are-the-key-differences-between-send-and-sendto Sat, 12 Oct 2024 06:10:28 +0530 pravjot 1956@/forum/discussions 5. What are the key differences between `send()` and `sendto()`? When would you use each in network programming?
Focus: Usage of `send()` for connection-oriented (TCP) and `sendto()` for connectionless (UDP) communication.
]]> 6. In the context of raw sockets, why might you need to use them https://www.emblogic.com/forum/discussion/1955/6-in-the-context-of-raw-sockets-why-might-you-need-to-use-them Sat, 12 Oct 2024 06:10:11 +0530 pravjot 1955@/forum/discussions 6. In the context of raw sockets, why might you need to use them, and what are the potential risks associated with raw socket programming?
Focus: Low-level network access using raw sockets and the associated security or stability risks.
]]> 7. What is the purpose of the `recvfrom()` system call, and how is it different from `recv()`? https://www.emblogic.com/forum/discussion/1954/7-what-is-the-purpose-of-the-recvfrom-system-call-and-how-is-it-different-from-recv Sat, 12 Oct 2024 06:09:47 +0530 pravjot 1954@/forum/discussions 7. What is the purpose of the `recvfrom()` system call, and how is it different from `recv()`?
Focus: Understanding of the different types of socket calls, particularly for datagram (UDP) vs stream (TCP) communication.
]]> 8. Describe the process of converting an IP address from human-readable format to binary format and https://www.emblogic.com/forum/discussion/1953/8-describe-the-process-of-converting-an-ip-address-from-human-readable-format-to-binary-format-and Sat, 12 Oct 2024 06:09:33 +0530 pravjot 1953@/forum/discussions 8. Describe the process of converting an IP address from human-readable format to binary format and vice versa. Which functions in Linux are used for this conversion?
Focus: Use of `inet_pton()` and `inet_ntop()` for address conversion between presentation and network formats.
]]> 9. What are some common network debugging tools available in Linux? https://www.emblogic.com/forum/discussion/1952/9-what-are-some-common-network-debugging-tools-available-in-linux Sat, 12 Oct 2024 06:09:13 +0530 pravjot 1952@/forum/discussions 9. What are some common network debugging tools available in Linux? How would you use them to troubleshoot network issues?
Focus: Knowledge of tools like `tcpdump`, `netstat`, `ss`, `traceroute`, `ping`, `Wireshark`, and their practical application in debugging.
]]> 10. Explain what a blocking socket is. https://www.emblogic.com/forum/discussion/1951/10-explain-what-a-blocking-socket-is- Sat, 12 Oct 2024 06:08:58 +0530 pravjot 1951@/forum/discussions 10. Explain what a blocking socket is. How can you make a socket non-blocking, and why might you need to do that?
Focus: Differentiation between blocking and non-blocking sockets and how to manage I/O in different situations.
]]> 11. In Linux, what is the purpose of the `fcntl()` system call, and how can it be used in network https://www.emblogic.com/forum/discussion/1950/11-in-linux-what-is-the-purpose-of-the-fcntl-system-call-and-how-can-it-be-used-in-network Sat, 12 Oct 2024 06:08:32 +0530 pravjot 1950@/forum/discussions 11. In Linux, what is the purpose of the `fcntl()` system call, and how can it be used in network programming?
Focus: Use of `fcntl()` for setting socket attributes, especially non-blocking modes.
]]> 12. How would you handle errors in a socket-based program? https://www.emblogic.com/forum/discussion/1949/12-how-would-you-handle-errors-in-a-socket-based-program Sat, 12 Oct 2024 06:08:12 +0530 pravjot 1949@/forum/discussions 12. How would you handle errors in a socket-based program? What are some common socket error codes, and how do you check for them?
Focus: Error-handling mechanisms using `errno`, `perror()`, and `strerror()`, and common socket-related error codes.
]]> 13. What is the purpose of the `listen()` system call, and what role does the `backlog` parameter https://www.emblogic.com/forum/discussion/1948/13-what-is-the-purpose-of-the-listen-system-call-and-what-role-does-the-backlog-parameter Sat, 12 Oct 2024 06:07:53 +0530 pravjot 1948@/forum/discussions 13. What is the purpose of the `listen()` system call, and what role does the `backlog` parameter play in server socket programming?
Focus: Understanding how to manage incoming connections and what the `backlog` parameter controls in a multi-client server.
]]> 14. Describe the role of the `accept()` system call in a server application. https://www.emblogic.com/forum/discussion/1947/14-describe-the-role-of-the-accept-system-call-in-a-server-application- Sat, 12 Oct 2024 06:07:29 +0530 pravjot 1947@/forum/discussions 14. Describe the role of the `accept()` system call in a server application. How does it differ from `connect()` on the client side?
Focus: Deep understanding of how server-side `accept()` and client-side `connect()` work in establishing communication.
]]> 15. What is a UNIX domain socket, and how does it differ from an Internet domain socket? https://www.emblogic.com/forum/discussion/1946/15-what-is-a-unix-domain-socket-and-how-does-it-differ-from-an-internet-domain-socket Sat, 12 Oct 2024 06:07:09 +0530 pravjot 1946@/forum/discussions 15. What is a UNIX domain socket, and how does it differ from an Internet domain socket? When would you use a UNIX domain socket instead of an IP-based socket?
Focus: Local inter-process communication (IPC) using `AF_UNIX` vs network communication using `AF_INET`.
]]> 16. What is the role of `getaddrinfo()` in network programming? https://www.emblogic.com/forum/discussion/1945/16-what-is-the-role-of-getaddrinfo-in-network-programming Sat, 12 Oct 2024 06:06:49 +0530 pravjot 1945@/forum/discussions 16. What is the role of `getaddrinfo()` in network programming? Why is it preferred over older functions like `gethostbyname()`?
Focus: Modern address resolution techniques and their advantages, including support for both IPv4 and IPv6.
]]> 17. How would you implement a basic client-server model where the server handles multiple clients si https://www.emblogic.com/forum/discussion/1944/17-how-would-you-implement-a-basic-client-server-model-where-the-server-handles-multiple-clients-si Sat, 12 Oct 2024 06:06:30 +0530 pravjot 1944@/forum/discussions 17. How would you implement a basic client-server model where the server handles multiple clients simultaneously? What methods would you use for scalability?
Focus: Multiplexing techniques (`select()`, `poll()`, `epoll()`), threading, or forking to handle multiple clients.
]]> 18. Explain the difference between a multicast and a broadcast in network programming. https://www.emblogic.com/forum/discussion/1943/18-explain-the-difference-between-a-multicast-and-a-broadcast-in-network-programming- Sat, 12 Oct 2024 06:06:10 +0530 pravjot 1943@/forum/discussions 18. Explain the difference between a multicast and a broadcast in network programming. How would you implement each using sockets?
Focus: Difference in scope and usage between broadcasting (sending to all devices in a network) and multicasting (sending to a group of devices).
]]> 19. What are some strategies for improving the performance of a networked application? https://www.emblogic.com/forum/discussion/1942/19-what-are-some-strategies-for-improving-the-performance-of-a-networked-application Sat, 12 Oct 2024 06:05:52 +0530 pravjot 1942@/forum/discussions 19. What are some strategies for improving the performance of a networked application? How would you optimize socket communication in high-performance systems?
Focus: Techniques like reducing latency with `TCP_NODELAY`, adjusting buffer sizes, using non-blocking I/O, and optimizing the use of `select()` or `epoll()`.
]]> 20. What is the purpose of setting socket options with `setsockopt()`? https://www.emblogic.com/forum/discussion/1941/20-what-is-the-purpose-of-setting-socket-options-with-setsockopt Sat, 12 Oct 2024 06:05:32 +0530 pravjot 1941@/forum/discussions 20. What is the purpose of setting socket options with `setsockopt()`? Can you provide examples of commonly used socket options for tuning network performance or behavior?
Focus: Use of `setsockopt()` to control socket behavior, including options like `SO_REUSEADDR`, `SO_RCVBUF`, `SO_SNDBUF`, and `TCP_NODELAY`.
]]> Issues, queries and suggestions. 03.Introduction-to-Sockets https://www.emblogic.com/forum/discussion/1940/issues-queries-and-suggestions-03-introduction-to-sockets Tue, 08 Oct 2024 12:40:44 +0530 pravjot 1940@/forum/discussions Issues, queries and suggestions related to 
03.Introduction-to-Sockets
Should be put here...
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