DATABASE ATTCKS we have list of most critical database attacks, & they are: 1. Excessive privileges: When users (or applications) are granted database privileges that exceed the requirements of their job function, these privileges may be used to gain access to confidential information. For example, a university administrator whose job requires read-only access to student … Read more
INTRODUCTION Data means groups of information that represent the qualitative or quantitative attributes of a variable or set of variables.Data is the raw form of information stored as columns and rows in our databases, network servers and personal computers. This may be a wide range of information from personal files and intellectual property to market … Read more
Merge Sort Algorithm Merge Sort is a Divide and Conquer algorithm. It divides input array in two halves, calls itself for the two halves and then merges the two sorted halves. The merge() function is used for merging two halves. The merge(arr, l, m, r) is key process that assumes that arr[l..m] and arr[m+1..r] are sorted and merges … Read more
Linear Search vs Binary Search A Linear Search is the most basic type of searching algorithm. A Linear Search sequentially moves through your collection (or data structure) looking for a matching value. In other words, it looks down a list, one item at a time, without jumping. Think of it as a way of finding your way in a phonebook Binary … Read more
Matrix multiplication program in C Matrix multiplication in C language to calculate the product of two matrices (two-dimensional arrays). A user inputs the orders and elements of the matrices. If the multiplication isn’t possible, an error message is displayed. You may have studied the method to multiply matrices in Mathematics. Matrix multiplication in C language … Read more
PROTECTING YOUR PASSWORD AND LOGGING ON SECURELY Hackers who know your password do not have to resort to technological exploits; they can log on and do anything that you can do on the computer or network. Keeping your password secret is one of the most important things you can do to protect against security breaches. … Read more
SOFTWARE SECURITY FOR PORTABLE COMPUTERS The best defense for portable computers is theft prevention, but there are ways to minimize the impact if your portable does get stolen. Setting a startup password is a first step, although thieves may be able to defeat this by resetting the password or using a master password that is … Read more
PROTECTING YOUR COMPUTER AND NETWORK PHYSICALLY SECURING LAPTOP/NOTEBOOK/HANDHELD COMPUTERS Portable computers can be even more vulnerable because it is so easy to steal the entire computer. A thief might then be able to access the data stored on the hard disk and log on to the organization ̳s network remotely, if additional protective measures … Read more
NETWORKING DEVICES Computer networking devices are also called network equipment, Intermediate Systems (IS) or interworking Unit (IWU). Common basic networking devices which are very commonly used nowadays are: 1. Repeater – A repeater operates at the physical layer. Its job is to regenerate the signal over the same network before the signal becomes too weak … Read more
C Program to Check whether an Alphabet is Vowel or Consonant This program takes the character value(entered by user) as input and checks whether that character is a vowel or consonant using if-else statement. Since a user is allowed to enter an alphabet in lowercase and uppercase, the program checks for both uppercase and lowercase … Read more