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Cis 155 Midterm

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* | | | Match the following VI commands to the corresponding descriptions.Answer | | | | | Question | Correct Match | Selected Match | Searches backward through a file | l. ? | l. ? | Deletes a line | m. dd | m. dd | Opens a line above the current line | f. O | f. O | Repeats the last text changes | k. . (dot) | k. . (dot) | Opens a line below the current line | b. o | b. o | Exits the vi editor and saves the file | d. wq | d. wq | Exits the vi editor without saving the file | e. q! | e. q! | Deletes a character indicated by the cursor position | i. x | i. x | Undoes the recent changes on the current line | n. u | n. u | Replaces character(s) and places vi in the text input mode | h. R | h. R | Places the cursor at the end of the current line | a. $ | a. $ | Places the cursor at the beginning of the current line | g. 0 (zero) | g. 0 (zero) | Moves the cursor one word forward | j. w | j. w | Places the vi editor in the command mode | c. Esc | c. Esc | Undoes all changes on the current line | o. U | o. U | | | | | | * Question 2
5 out of 5 points | | | Gb is about one billion bytes.Answer | | | | | Selected Answer: | True | Correct Answer: | True | | | | | * Question 3
5 out of 5 points | | | In the operating system model the service layer translates the service requests from users/programs and passes them to the kernel layer.Answer | | | | | Selected Answer: | True | Correct Answer: | True | | | | | * Question 4
5 out of 5 points | | | UNIX is a multi-user, multi-tasking operating system.Answer | | | | | Selected Answer: | True | Correct Answer: | True | | | | | * Question 5
30 out of 40 points | | | Match the following commands to the corresponding descriptions.Answer | | | | | Question | Correct Match | Selected Match | who | g. Lists users of

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