Carrier Sense Multiple Access with Collision Detection (CSMA/CD) is a network protocol for carrier transmission that operates in the Medium Access Control (MAC) layer. It senses or listens whether the shared channel for transmission is busy or not, and defers transmissions until the channel is free.When more than one stations ... Read More

Ethernet is a set of technologies and protocols that are used primarily in LANs. It was first standardized in 1980s as IEEE 802.3 standard. Ethernet is classified into two categories: classic Ethernet and switched Ethernet.In switched Ethernet, the hub connecting the stations of the classic Ethernet is replaced by a ... Read More

Ethernet is a set of technologies and protocols that are used primarily in LANs. It was first standardized in 1980s as IEEE 802.3 standard. Ethernet is classified into two categories: classic Ethernet and switched Ethernet.Classic Ethernet is the original form of Ethernet that provides data rates between 3 to 10 ... Read More

Ethernet is a set of technologies and protocols that are used primarily in LANs. It was first standardized in 1980s as IEEE 802.3 standard.Ethernet can be broadly classified into two types −What are classic Ethernet and switched Ethernet?Classic Ethernet is the original form of Ethernet that provides data rates between ... Read More

DIX standard is a popular standard for Ethernet that was put forth in 1978. The name DIX is an abbreviation of the three organizations who implemented it, namely DEC, Intel and Xerox. DIX Ethernet provides data speed of 10 Mbps.DIX Ethernet is also known as Ethernet II framing. The main ... Read More

Thick Ethernet was the first commercially available form of cabling supported by Ethernet. It is technically known as 10-BASE-5. Here, 10 is the maximum throughput, i.e. 10 Mbps, BASE denoted use of baseband transmission, and 5 refers to the maximum segment length of 500 metres (1, 600 ft). This type ... Read More

To match any string containing one or more p’s with JavaScript RegExp, use the p+ Quantifier.ExampleYou can try to run the following code to match any string containing one or more p’s. Here p is considered as a number of occurrences −           JavaScript Regular Expression ... Read More

To perform multiline matching, use the M modifier available in JavaScript Regular Expression.ExampleYou can try to run the following code to perform multiline matching −           JavaScript Regular Expression                        var myStr = "Welcoming!";          var reg = /^ing/m;          var match = myStr.match(reg);                    document.write(match);          

For adding MySQL virtual GENERATED COLUMNS in a table, we can use the same syntax as adding a column just adding “AS(expression)” after the data type. Its syntax would be as follows −SyntaxALTER TABLE table_name ADD COLUMN column_name AS(expression);Examplemysql> ALTER TABLE employee_data ADD COLUMN FULLName Varchar(200) AS(CONCAT_WS(" ", 'First_name', 'Last_name')); ... Read More

Yes, MySQL will update the value, if it is updated in a view, in the base table as well as in its associated views. To illustrate it we are taking the example of table Student_info having the following data −mysql> Select * from student_info; +------+---------+------------+------------+ | id   | Name ... Read More