Operating System (Online Practice) Page 51

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


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