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Compared with socket developers, the TCP creation and link Division processes are automatically created by the TCP/IP protocol stack. therefore, developers do not need to control this process. however, it is helpful to understand the underlying TCP operation mechanism.In addition, a written examination such as a network protocol engineer is almost mandatory. the enthusiasm of the company for this issue is beyond my expectation :-). This problem is sometimes emphasized before the interview in the

and the server formally start to transmit data. Ideally, once a TCP connection is established, the TCP connection will remain until either of the two parties closes the connection. When a TCP connection is disconnected, both the server and client can initiate a request to disconnect the TCP

Differences between linux soft connection and Hard connection 1. Linux Link concepts Linux links are divided into two types: Hard Link and Symbolic Link ). By default, the ln command generates a hard link. [Hard connection] Hard connection refers to the connection through th

Why is TCP using three handshake to establish a connection, if two handshakes can be used, please explain the reason?　　No. A three-time handshake is used to prevent the failure of the connection request message segment from being transmitted to the server abruptly, resulting in an error. When the client sends a connection request message segment for some reason d

1. Linux link conceptLinux links are classified into two types: Hard Link and Symbolic Link ). By default, the ln command generates a hard link. [Hard connection]Hard connection refers to the connection through the index node. In a Linux File System, a file stored in a disk partition is assigned with an Index node number (Inode Index) No matter what type it is ).

Compared with socket developers, the TCP creation and link Division processes are automatically created by the TCP/IP protocol stack. therefore, developers do not need to control this process. however, it is helpful to understand the underlying TCP operation mechanism.In addition, a written examination such as a network protocol engineer is almost mandatory. the enthusiasm of the company for this issue is beyond my expectation :-). This problem is sometimes emphasized before the interview in the

Difference Between TCP persistent connection and short connection 1. TCP connection when the network communication adopts the TCP protocol, a connection must be established between the server and the client before the real read/write operations. After the read/write operations are complete, when the two sides no longer

Java database connection pool configuration methods (take MySQL database as an example), database connection mysqlSeveral configuration methods for Java Database Connection Pool (taking MySQL database as an example) 1. Tomcat configuration data source: Prerequisites: You need to put the jar package for connecting to the MySQL database driver into the lib director

configuration information in Oracle Net Manager management, and then link the string to the following notation: Data SOURCE=TORCL; User Id=myusername; Password=mypassword; Other ways of connecting, refer to the following, from other websites: Oracle Connection string Summary Oracle XE Standard connection Oracle XE (or Oracle Database 10g Express Edition) is a simple, free release version. The

Jsp jdbc-based database connection instance and jspjdbc database connection This example describes the JDBC-based database connection class of JSP. We will share this with you for your reference. The details are as follows: /*** TODO To change the template for this generated file go to * Window-Preferences-Java-Code Style-Code Templates */package com. yanek. test

Can it be said: "circuit switching is equivalent to connection orientation, while group switching and connectionless are equivalent "? A: No. This is quite different in concept. The following is an example. Circuit Switching is the start of communication between A and B. A connection from A to B must be established first (there may be many exchange nodes in the middle ). After the

There are two cases where there is no local connection, one is that the local connection in the lower-right corner of the taskbar is missing, and the other is that there is no local connection in the network connection, although the local connection icon is missing in both c

three important parameters for Tomcat connection pool The three key parameters of the Tomcat connection pool, the configuration of the connection pool is very important, the configuration is not easy to cause the operation of the program is stable, the following common problems summed up under: A. If set to true Tomcat automatically checks for recovery reuse and

Label: What is a long connection? In fact, a long connection is relative to the usual short connection, that is, long time to maintain the client and the server connection state. The usual short connection operation steps are: Connect-"data transfer-" close the

This is a creation in Article, where the information may have evolved or changed. The Golang itself does not provide a driver to connect to MySQL, but it defines a standard interface for third-party development drivers. Here to connect MySQL can use third-party libraries, third-party libraries recommend the use of Https://github.com/Go-SQL-Driver/MySQL this driver, update maintenance is better. The following shows the specific use, the complete code example can refer to the last. Download driv

Java. io. IOException: the software in your host suspends a established connection ., Abort connection exception 1. Error description [19:13:48-ddmlib] the software in your host suspends a established connection. Java. io. IOException: the software in your host suspends a established connection. At sun. nio. ch. socke

TCP provides reliable transmission by using three-time handshakes to establish a reliable connection when establishing a connection.In socket programming, the client executes connect (). Will trigger a three-time handshake.Example: Host a runs the client, b runs the server program, the TCP processes at both ends belong to the closed (off) state, a actively opens the connection, B passively opens the connect

#.3-time handshake process statusFirst handshake: When a connection is established, the client sends a SYN packet (SYN=J) to the server and enters the Syn_send state, waiting for the server to confirm;Second handshake: The server receives the SYN packet, it must confirm the customer's SYN (ACK=J+1), and also send itself a SYN packet (syn=k), that is, the Syn+ack packet, when the server enters the SYN_RECV state;Third handshake: The client receives the

What is a connection object?A connection object describes the physical connection to the data source. You can use odbc or ole db to connect to the data source. When you open a connectiont object, you attempt to connect to the database. The state attribute of the Connection object tells us whether the