Answer:
(b) int **arr = new int*[10];
Explanation:
An <em>array of pointers</em> is simply an array containing pointer variables. These pointer variables may be Strings, integers, doubles e.t.c
To declare such arrays of pointers, for example, of integers, in C++, we write;
int **arr = new int*[10];
The left hand side of the above code snippet i.e int ** arr, suggests that arr is a pointer that points to a pointer to integer variables.
The right hand side i.e new int* [10], creates a new array of 10 integer pointer variables.
Now, put together, int **arr = new int*[10] will create/declare an array of pointers of integers having a size of 10.
Answer:
Using version control tools like Git and Github.
Explanation:
Version control is a vital tool in programming in recent times. it helps to prevent loss of source codebase and creating unwanted folders for storing multiple codebases to prevent excess storage usage and time consumption.
Git and Github is a platform that handles version control and collaboration between co-workers. When a repository is created, its initial branch is called the master branch and when a staged code is committed, the commit is recorded. These records can be retrieved using the commit hash value and resetting the current unstaged file or code. A new branch can created to hold a different version of an application and merged later with the master branch.
Answer:
Traditional database system is the system that contains all the data in the computer files on a computer system. The organization of the data is done in the form of files sets. In this system, large amount of data is not properly accessible due to inefficiency and also consumes lot of time.
Instead of the traditional system,database system is used, which has the collection of the data that gets stored in the database management system(DBMS).They can be managed by the operating system.
They have qualities like consuming large amount of data, any type of information, independent to work ,less time-taking development of application for etc. which is not present in traditional system.Thus database system are chosen over the traditional system.