{"id":39010,"date":"2025-06-26T17:14:02","date_gmt":"2025-06-26T17:14:02","guid":{"rendered":"https:\/\/gaviki.com\/blog\/?p=39010"},"modified":"2025-06-26T17:14:02","modified_gmt":"2025-06-26T17:14:02","slug":"listen-state-in-a-tcp-socket-refers-to-a-tcp-socket-is-ready-and-is-listening-for-incoming-connections","status":"publish","type":"post","link":"https:\/\/gaviki.com\/blog\/listen-state-in-a-tcp-socket-refers-to-a-tcp-socket-is-ready-and-is-listening-for-incoming-connections\/","title":{"rendered":"LISTEN state in a TCP socket refers to: A TCP socket is ready and is listening for incoming connections"},"content":{"rendered":"\n

LISTEN state in a TCP socket refers to: A TCP socket is ready and is listening for incoming connections A synchronization request has been sent The socket has received a synchronization request All of the above Question 12<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

Correct Answer: A TCP socket is ready and is listening for incoming connections<\/strong><\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n

In the Transmission Control Protocol (TCP)<\/strong>, the LISTEN<\/strong> state is part of the TCP connection state machine<\/strong>, which defines the steps a TCP connection goes through from creation to termination. The LISTEN state plays a critical role in server-side socket programming.<\/p>\n\n\n\n

When a TCP socket enters the LISTEN<\/strong> state, it means the application (such as a web server or mail server) has created a socket, bound it to an IP address and port number, and is now waiting (or listening<\/em>) for incoming connection requests from remote clients. This is the first step in establishing a TCP connection from the server’s side.<\/p>\n\n\n\n

To reach the LISTEN state, a server typically performs the following steps:<\/p>\n\n\n\n

    \n
  1. Create a socket<\/strong> using the appropriate system call.<\/li>\n\n\n\n
  2. Bind<\/strong> the socket to a specific IP address and port.<\/li>\n\n\n\n
  3. Call listen()<\/code><\/strong>, which places the socket into the LISTEN state.<\/li>\n<\/ol>\n\n\n\n

    At this point, the server is passively<\/em> waiting for clients to initiate a connection. It is not actively sending or receiving data, nor has any connection been established yet.<\/p>\n\n\n\n

    Let\u2019s clarify the other options in the question:<\/p>\n\n\n\n

      \n
    • \u201cA synchronization request has been sent\u201d refers to the SYN-SENT<\/strong> state, where the client sends a SYN<\/strong> packet to start the connection.<\/li>\n\n\n\n
    • \u201cThe socket has received a synchronization request\u201d is part of the SYN-RECEIVED<\/strong> state, where the server has received the client\u2019s SYN and is preparing to respond.<\/li>\n\n\n\n
    • \u201cAll of the above\u201d is incorrect because each option refers to a different and distinct TCP state.<\/li>\n<\/ul>\n\n\n\n

      In summary, the LISTEN<\/strong> state only applies to a server socket that is waiting for incoming connections. It does not mean that any packets have been sent or received yet.<\/p>\n\n\n\n

      \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

      LISTEN state in a TCP socket refers to: A TCP socket is ready and is listening for incoming connections A synchronization request has been sent The socket has received a synchronization request All of the above Question 12 The Correct Answer and Explanation is: Correct Answer: A TCP socket is ready and is listening for […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-39010","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/39010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=39010"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/39010\/revisions"}],"predecessor-version":[{"id":39016,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/39010\/revisions\/39016"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=39010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=39010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=39010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}