What is included in the /etc/passwd file? What was included in it in the past, and why was this changed?
What will be an ideal response?
The /etc/passwd file stores user information such as the user name, the UID, the home directory, and the login shell.
In the past, /etc/passwd also contained the password hash. However, because the file needs to be readable by all (for instance, to show user and group names when using ls -l), the hashed password is now stored in /etc/shadow, which is only readable by root and members of the shadow group.
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Which of the following cannot be an Enum’s underlying type?
a) SByte b) Integer c) ULong d) Double
What happens after line 4 is run?
``` 1 string s = “math is fun!”; 2 int f = s.at(0) 3 int t = s.size(); 4 int n = s.at(5); 5 int y = s.at(s.5); ``` A. The value of y is space. B. The value of y is i. C. The program will not compile. D. The program crashes when it runs.
A local variable that is declared as ____ causes the program to keep the variable and its latest value even when the function that declared it is finished executing.
A. auto B. static C. extern D. register
When you use information hiding by selecting which properties and methods of a class to make public, you are assured that your data will be altered only by the properties and methods you choose and only in ways that you can control.
Answer the following statement true (T) or false (F)