Moumita has Published 175 Answers

Switched Ethernet

Moumita

Moumita

Updated on 29-Jun-2020 09:32:41

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

Architecture of Classic Ethernet

Moumita

Moumita

Updated on 29-Jun-2020 09:31:57

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

Switched Ethernet vs. Classic Ethernet

Moumita

Moumita

Updated on 29-Jun-2020 09:31:11

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

What is DIX Standard?

Moumita

Moumita

Updated on 29-Jun-2020 09:29:36

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

What is Thick Ethernet?

Moumita

Moumita

Updated on 29-Jun-2020 09:29:08

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

Match any string containing one or more p's with JavaScript RegExp.

Moumita

Moumita

Updated on 23-Jun-2020 08:26:48

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 −<html>    <head>       <title>JavaScript Regular Expression</title> ... Read More

How to perform Multiline matching with JavaScript RegExp?

Moumita

Moumita

Updated on 23-Jun-2020 07:32:31

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 −<html>    <head>       <title>JavaScript Regular Expression</title>    </head>    <body>       <script>          var myStr = "Welcom\ning!"; ... Read More

How can we alter table to add MySQL virtual GENERATED COLUMNS?

Moumita

Moumita

Updated on 22-Jun-2020 14:27:39

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

After updating any value in a particular view, will MySQL updates the same in the base table and its associated views (if any)?

Moumita

Moumita

Updated on 22-Jun-2020 13:30:40

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

How BEFORE INSERT triggers can be used to emulate CHECK CONSTRAINT for inserting values in the table?

Moumita

Moumita

Updated on 22-Jun-2020 13:02:44

As we know that MySQL supports foreign key for referential integrity but it does not support CHECK constraint. But we can emulate them by using triggers. It can be illustrated with the help of an example given below −ExampleSuppose we have a table named ‘car’ which can have the fix ... Read More

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