Protocols are a set of rules that have to be followed by two systems to communicate with one another.Some protocols are
HTTP-Hyper text transfer protocol
FTP- file transfer protocol
Q2 . What is HTTP?
SOLUTION
It is protocol that is used to transmit hypertext or data or even exchange data across the internet.
Q3 . What is FTP?
SOLUTION
It is a protocol used to transfer files from or to directory.
Q4 . What is the IEEE standard for ETHERNET?
SOLUTION
It is the protocol that controls the flow of data across a LAN or ethernet.The IEEE standard is 802.3
Q5 . What is the difference between webserver and Web application server?
SOLUTION
>Webservers are used for static content
>Web application servers are used for the dynamic content in the web
>A application server usually contains a web server but it does not apply vice versa
>An application server can host applications where as ,A
Q6 . Do you know what ACID transactions are from Database point of view?
SOLUTION
Acid transactions stand for
Atomicity
Consistency
Isolation
Durability
.A database process is condered to be a transaction post completion of the ACID steps
Q7 . What is a primary key in Database?
SOLUTION
In a database ,a field or column used to identify a row (tuple) uniquely in a table is called a primary key
Q8 . What are foreign keys in DataBase?
SOLUTION
When we are trying to collaborate data from multiple tables let us say two then we take a unique field from one table and reference it with a unique field(can also be the primary key) from the second table in order to manipulate the data in both tab
Q9 . What are DDL queries and list some of them?
SOLUTION
DDL stands for Data Definition language .These are used to define the structure of the database.Like for example creating tables or altering their structure.
Q10 . What are DML queries and list of them?
SOLUTION
DML stands for Data Manipulation Language.These are used to manipulate the data in tables.Like select,insert , update queries and so on.