25. In BASIC, description comments are put in the source program with the

26. Which command is used to display all the files having the (.exe) extension but different filename?

27. CHKDSK command is used to

28. In which year the first operating system was developed

29. Which command should be used to display all files within the specified subordinate directory of the subdirectory?

30. In communication satellite, multiple repeaters are known as

31. Which of the following is an advantage to using fiber optics data transmission?

32. The channel in the data communication model can be