What is the principle purpose of the primary key? (points : 3) primary keys uniquely identify a row of data within a database table.
keys used in first normal form are known as primary keys. second normal form keys are known as secondary keys, and 3nf keys are called tertiary keys.
primary keys uniquely identify a column of data within a database table.
the primary key secures the table by locking it against unauthorized access.

You are working as a security analyst in a company xyz that owns the whole subnet range of 23.0.0.0/8 and 192.168.0.0/8. while monitoring the data, you find a high number of outbound connections. you see that ip's owned by xyz (internal) and private ip's are communicating to a single public ip. therefore, the internal ip's are sending data to the public ip. after further analysis, you find out that this public ip is a blacklisted ip, and the internal communicating devices are compromised. what kind of attack does the above scenario depict?

In the insert table dialog box, you select the checkbox to create the first row as the header of the table.

Write an assembly language program to input a string from the user. your program should do these two things: 1. count and display the number of words in the user input string. 2. flip the case of each character from upper to lower or lower to upper. for example if the user types in: "hello there. how are you? " your output should be: the number of words in the input string is: 5 the output string is : hello there. how are you?