In C++, variables are containers that hold data with specified data types, including fundamental types like int and float. Derived types like arrays and pointers extend functionality, while user-defined types, created with classes, allow custom data structures. Constants are used for unchanging values. Properly defining and using data types is essential for efficient and correct programming in C++.

For distinction criterion D2, learners must provide evidence of using a range (three or more) of software utilities to check the security of a computer system. The computer system could be the same system that they have been using throughout the assessment of this unit. The evidence should include information relating to the security check being carried out, the software utility being used, the result of the check, issues identified if any www.ocr.org.uk 10 and remedial action to be taken if an...

This it the Level 2 BTEC Unit 2 - P1 which has been marked and passed.