Which one is not a software quality model?

Which among following classes is not part of Java’s collection framework?

Which of the following commands is used to absolutely assign all permissions to the owner, read and write permissions to the group and only executable permission to the others of the file note?

An algorithm is best described as________?

Computer programs are written in a high-level programming language; however, the human-readable version of a program is called ________?

The two main components of the CPU is________?