MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Unix knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which one of the following command is invalid? |
| A. | /printf |
| B. | ?scanf |
| C. | :%/abd/mash/wc |
| D. | :1,%/file01/file02/g |
| Answer» E. | |
| 2. |
Which one of the following commands will be used to delete all the instances of string ‘manager’ in file003? |
| A. | 1,$s/manager/ /g |
| B. | %s/manager/director/g |
| C. | 1,$s/professor/director |
| D. | %s/manager/ / |
| Answer» B. %s/manager/director/g | |
| 3. |
Which of the following flag will be used for interactive substitution? |
| A. | g |
| B. | G |
| C. | gc |
| D. | cg |
| Answer» D. cg | |
| 4. |
Which of the following commands can be used to replace ‘professor’ with ‘director’ throughout the whole file? |
| A. | 1,$s/professor/director/g |
| B. | %s/professor/director/g |
| C. | 1,$s/professor/director |
| D. | 1,$s/professor/director/g and %s/professor/director/g |
| Answer» E. | |
| 5. |
The target pattern is optional. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
We cannot leave the flag field empty while performing the substitution. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
____ searches for a first instance of a pattern in the backward direction. |
| A. | / |
| B. | % |
| C. | & |
| D. | ? |
| Answer» E. | |
| 8. |
WE_CANNOT_LEAVE_THE_FLAG_FIELD_EMPTY_WHILE_PERFORMING_THE_SUBSTITUTION.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Which of the following commands can be used to replace ‘professor’ with ‘director’ throughout the whole file?$# |
| A. | 1,$s/professor/director/g |
| B. | %s/professor/director/g |
| C. | 1,$s/professor/director |
| D. | 1,$s/professor/director/g and %s/professor/director/g |
| Answer» E. | |
| 10. |
The_target_pattern_is_optional.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
Search and replace operations can also use regular expressions for matching multiple patterns. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Which one of the following commands will be used to delete all the instances of string ‘manager’ in file003?$ |
| A. | 1,$s/manager/ /g |
| B. | %s/manager/director/g |
| C. | 1,$s/professor/director |
| D. | %s/manager/ / |
| Answer» B. %s/manager/director/g | |
| 13. |
Which_of_the_following_flag_will_be_used_for_interactive_substitution? |
| A. | g |
| B. | G |
| C. | gc |
| D. | cg |
| Answer» D. cg | |
| 14. |
Which of the following is a correct syntax for performing substitution on a file? |
| A. | :address/source_pattern/target_pattern/flag |
| B. | :address/target_pattern source_pattern/flag |
| C. | :address/flag |
| D. | :address |
| Answer» B. :address/target_pattern source_pattern/flag | |
| 15. |
Which of the following symbol is used for substitution command? |
| A. | n |
| B. | N |
| C. | s |
| D. | S |
| Answer» D. S | |
| 16. |
Substitution command is an ex-mode command. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
Which command is used to reverse the direction of repeating the search? |
| A. | n |
| B. | N |
| C. | nn |
| D. | NN |
| Answer» C. nn | |
| 18. |
Which command is used for repeating the search in the same direction? |
| A. | n |
| B. | N |
| C. | nn |
| D. | NN |
| Answer» B. N | |
| 19. |
____ searches for a first instance of a pattern in forwarding direction. |
| A. | / |
| B. | % |
| C. | & |
| D. | ? |
| Answer» B. % | |
| 20. |
Which of the following symbols are used for searching a pattern in vi? |
| A. | / |
| B. | ? |
| C. | % |
| D. | / and ? |
| Answer» E. | |