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Computers

1. Which of the following statements about operating system is correct? (a) It controls the operation of all software including application software. (b) It provides systems security. (c) It provides the graphical user interface between the user and the computer. (d) All of the above. 2. The main purpose of the secondary storage device is to: (a) increase the speed of computer (b) take backup (c) share the data on networking (d) store data
3. If you want every student to input his roll number and scan his finger for attendance, you need to have a combination of: (a) Keypad, Mouse, OCR Scanner and Monitor (b) Touch Screen and Biometric Scanner (c) Touch Screen and Keypad (d) Mouse, Monitor and Biometric Scanner
4. Which of the following DOS commands will display the IP address of your computer? (a) comp_ip (b) ip_config (c) ipconfig (d) configip 5. In MS Windows, which of the following utility programs provides most appropriate way of deleting unnecessary files and freeing up space on the hard disk? (a) Disk defragmenter (b) Task manager (c) Disk cleanup (d) Check disk
6. Which of the following syntaxes is correct for using VLOOKUP in MS Excel? (a) VLOOKUP(table_array, col_index_num, [range_lookup]) (b) VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup]) (c) VLOOKUP(lookup_value, table_array, row_index_num, [range_lookup]) (d) VLOOKUP(row_value, table_array, col_index_num, [range_lookup])
7. The maximum number of IF functions that can be nested as value_if_true and value_if_false arguments is: (a) 4 (b) 16 (c) 32 (d) 64
8. In an MS Excel

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