Answer:
Binary is a set of compiled human readable instructions for the CPU to interpret.
<u>Purposes of finder </u>:-
It allows the user to do the following mentioned (below) jobs such as:
1) It provides interference in
•coping •moving •deleting etc.
2) It is also associated in the acts of openings and navigation of:
•folders •files
3) Moreover, it can also move windows anywhere on the desktop.
4) Finder is also beneficial in a way that it is capable of revealing different elements and materials or softwares like:
•Storage devices
•Applications
•Files and folders etc
DES is a commonly used symmetric encryption
A) is a commonly used symmetric encryption
<u>Explanation:</u>
DES stands for Data Encryption Standard. It is a symmetric key algorithm and is used for encrypting electronic data. It was developed in 1975. DES is one of the oldest encryption standards to be used in the industry.
The algorithm takes 16 rounds of permutations in order to encrypt data. But now, with the advent of technology, as new algorithms have been designed and put in use, DES is less preferable.
In the process of key generation, some keys generated sometimes turn out to be weak and hence are prone to attacks. If not for the weak keys generation, DES works perfectly fine and is an effective algorithm to encrypt data.
Answer:
int sumAll(int n)//function definition.
{
if(n==1)//if condition.
return 1;
else//else condition.
{
return n+sumAll(n-1);//return the value and call the function in recursive manner.
}
}
Explanation:
- The above-defined function is a recursive type function that is written in the c language, which holds the if and else condition.
- When the user passes the largest value from 1, then the else condition will be executed which adds the largest value and pass the value after the decrement of the value as an argument.
- When the value will become 1, then the function if-block will be executed which returns the value and ends the calling function recursively.
Answer: OSI system is called Open System Interconnection because It provides the collection of protocols for the connection of different system to connect with any dependence on any other system or network.
Explanation: Open system interconnection establishes a connection between the different system for the communication purpose using several protocols and software standards .It has no dependency or any network or other system to do the functioning and works using the seven layers of the OSI architecture.Thus, that is why OSI system known as open system.
