Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > The server program tells its TCP that it is r...
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The server program tells its TCP that it is ready to accept a connection. This process is called
- a)Active open
- b)Active close
- c)Passive close
- d)Passive open
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The server program tells its TCP that it is ready to accept a connecti...
Answer: d
Explanation: This is the first step in the Three-Way Handshaking process and is started by the server.
Explanation: This is the first step in the Three-Way Handshaking process and is started by the server.
Most Upvoted Answer
The server program tells its TCP that it is ready to accept a connecti...
Passive open: When a server program is ready to accept a connection, it informs its TCP (Transmission Control Protocol) layer that it is ready to accept incoming connections. This process is known as passive open.
Explanation:
When a server program is running and ready to establish a connection with a client, it needs to inform the underlying TCP layer that it is ready to accept incoming connections. This is done through passive open.
1. Server program:
- The server program is an application or process running on a computer that provides services to clients.
- It could be a web server, email server, file server, etc.
2. TCP (Transmission Control Protocol):
- TCP is a reliable transport protocol responsible for establishing, maintaining, and terminating connections between network devices.
- It ensures the reliable delivery of data packets over the network.
3. Passive open:
- Passive open is the process through which the server program informs its TCP layer that it is ready to accept incoming connections.
- The server program does not actively initiate the connection but waits for the client to establish the connection.
Key points:
- The server program typically listens on a specific port for incoming connection requests.
- It sets the TCP layer in a passive open state by using system calls or APIs provided by the operating system.
- The server program may specify the maximum number of pending connections it can handle simultaneously.
- Once the TCP layer receives a connection request from a client, it establishes a connection by performing a three-way handshake.
- The server program then accepts the connection and starts communicating with the client.
Example:
- Consider a web server running on a computer. When the server program is ready to accept connections from web browsers, it sets its TCP layer in a passive open state.
- The server program listens on port 80 (default for HTTP) and waits for incoming connection requests.
- When a web browser sends a request to the server's IP address on port 80, the TCP layer accepts the connection and establishes a connection with the client.
In conclusion, passive open is the process by which a server program informs its TCP layer that it is ready to accept incoming connections.
Explanation:
When a server program is running and ready to establish a connection with a client, it needs to inform the underlying TCP layer that it is ready to accept incoming connections. This is done through passive open.
1. Server program:
- The server program is an application or process running on a computer that provides services to clients.
- It could be a web server, email server, file server, etc.
2. TCP (Transmission Control Protocol):
- TCP is a reliable transport protocol responsible for establishing, maintaining, and terminating connections between network devices.
- It ensures the reliable delivery of data packets over the network.
3. Passive open:
- Passive open is the process through which the server program informs its TCP layer that it is ready to accept incoming connections.
- The server program does not actively initiate the connection but waits for the client to establish the connection.
Key points:
- The server program typically listens on a specific port for incoming connection requests.
- It sets the TCP layer in a passive open state by using system calls or APIs provided by the operating system.
- The server program may specify the maximum number of pending connections it can handle simultaneously.
- Once the TCP layer receives a connection request from a client, it establishes a connection by performing a three-way handshake.
- The server program then accepts the connection and starts communicating with the client.
Example:
- Consider a web server running on a computer. When the server program is ready to accept connections from web browsers, it sets its TCP layer in a passive open state.
- The server program listens on port 80 (default for HTTP) and waits for incoming connection requests.
- When a web browser sends a request to the server's IP address on port 80, the TCP layer accepts the connection and establishes a connection with the client.
In conclusion, passive open is the process by which a server program informs its TCP layer that it is ready to accept incoming connections.
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