CompTIA Linux+ Guide to Linux Certification (MindTap Course List)
4th Edition
ISBN: 9781305107168
Author: Jason Eckert
Publisher: Cengage Learning
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Textbook Question
Chapter 5, Problem 13RQ
Which of the following statements are true? (Choose all that apply.)
- a. Quotas can only limit user space.
- b. Quotas can only limit the number of files a user can own.
- c. Quotas can limit both user space and the number of files a user can own.
- d. Hard limits can never be exceeded.
- e. Hard limits allow a user to exceed them for a certain period of time.
- f. Soft limits can never be exceeded.
- g. Soft limits allow a user to exceed them for a certain period of time.
- h. Either a hard limit or a soft limit can be set, but not both concurrently.
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Which of the following statements are true? (Choose all that apply.)a. Quotas can only limit user space.b. Quotas can only limit the number of files a user can own.c. Quotas can limit both user space and the number of files a user can own.d. Hard limits can never be exceeded.e. Hard limits allow a user to exceed them for a certain period of time.f. Soft limits can never be exceeded.g. Soft limits allow a user to exceed them for a certain period of time.h. Either a hard limit or a soft limit can be set, but not both concurrently.
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For this lab, you will write a program that creates and edits a test file called users.txtYour program should implement the following functions: add_user – Accepts a username as an argument and adds it to the file update_user – Accepts an old username and a new username as separatearguments and replaces any instance of that the old username with the newusername in the file. remove_user – Accepts a username as an argument and removes the userfrom the fileUse the following code to test your program:add_user(“bob”)add_user(“joe”)add_user(“ann”)add_user(“mike”)update_user(“joe”, “jo”)remove_user(“ann”)Your final file should look like:bobjomikeYour submission should include your source code (.py file) and either yourfinal text file or a screenshot of it.
Consider the following code segment:
done = False
while not done :
try :
filename = input("Enter the file name: ")
inFile = open (filename, "r")
except IOError :
print ("Error: File not found.")
It is supposed to keep on prompting the user for file names until the user provides the name of a file that can be
opened successfully. What line of code should be placed in the blank to achieve this goal?
Select one:
done = inFile
done = True
done = not inFile
done = False
Chapter 5 Solutions
CompTIA Linux+ Guide to Linux Certification (MindTap Course List)
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Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Which of the following statements are true?...Ch. 5 - Prob. 14RQCh. 5 - Which of the following statements regarding LVM...Ch. 5 - Prob. 16RQCh. 5 - You plug a USB flash memory drive into a system...Ch. 5 - Which command mounts all existing filesystems in...Ch. 5 - Prob. 19RQCh. 5 - Which command is used to format a partition on a...
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