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Section 15.4 contained several statements about the permissions required for various file-system operations. Use shell commands or write programs to verify or answer the following:
a) Removing all owner permissions from a file denies the file owner access, even though group and other do have access.
b) On a directory with read permission but not execute permission, the names of files in the directory can be listed, but the files themselves can't be accessed, regardless of the permissions on them.
c) What permissions are required on the parent directory and the file itself in order to create a new file, open a file for reading, open a file for writing, and delete a file? What permissions are required on the source and target directory to rename a file? If the target file of a rename operation already exists, what permissions are required on that file? How does setting the sticky permission bit (chmod +t) of a directory affect renaming and deletion operations?
Trace the route to another machine off campus. For example, if you have a friend you send email to, try tracing that route.
Computer Crime Techniques
How you would take any number of values of any type, and then remove the duplicates while at the same time storing the datat in the most efficient manner you can so that you can print out the data as an ordered list? Write a method to do this?
Write down two recent virus threats, are they minor or major threats? What software would you utilize to remove these threats?
The details of material stocked in a company are given below with the unit cost and the an consumption in Rs. Classify the material in to Aclass, Bclass and Cclass by ABCanalysis. S.No. Item Code No. Annual consumption in pieces Unit price in Paise.
Research at least two articles on the topic of managerial issues of a networked organization.
How many searches for items that are not in the list would you have to do to make sorting and using binary search a better strategy than using linear search?
Determine how to configure and deploy printers. Compare and contrast the advantages and disadvantages of different application server options. Be specific in your configuration specifications
C# in a Windows Forms Application. Design a program that asks the user to enter the amount that he or she has budgeted for a month. Use labels to list expediencies and text boxes to hold the expense (such as housing, entertainment, fuel, power, mi..
What does a Java class contain that identifies it as a Java application?
American Express discloses the following pension footnote in its 10-K report. How much pension expense does American Express report in its 2005 income statement?
The functions square and double take a single int parameter and return an int result.The function compute takes a value n and a function f, and returns the result of calling that function f with n as its parameter.So, compute(3,square) evaluate..
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