Q1: Which command is used to undelete the files with extension .doc that is just deleted?
- a) undelete
- b) undelete *.doc
- c) undelete/all
- d) all
Q2: Which was the last version of MS DOS that was released separately?
- a) 5.0
- b) 6.0
- c) 6.11
- d) 6.22
Q3: Which file contains the DOS internal commands?
- a) IO.SYS
- b) COMMAND.COM
- c) MSDOS.SYS
- d) CONFIG.SYS
Q4: It is the layer of a computer system between the hardware and the user program.
- a) operating environment
- b) system environment
- c) operating system
- d) all
Q5: It transforms one interface into another interface.
- a) program
- b) software
- c) data
- d) all
