A(n) __________ shows which functions were executing at the time the exception was raised.
a. string
b. back trace
c. trace
d. extension
b. back trace
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Modify rolo from this chapter so that a person running the program can keep their phone book file in whatever directory they prefer. This can be done by requiring that the user have set a variable called PHONEBOOK to be the name of the phone book file. Check to make sure that it's a valid file and default to the phone book file being in their $HOME directory if the variable's not set.
Here is an example: $ PHONEBOOK=/users/steve/personal lu Gregory Gregory 973-747-0370 $ PHONEBOOK=/users/pat/phonebook lu Toritos El Toritos 973-945-2236 $ In the preceding example, we assume that the user steve has been granted read access to pat's phone book file. Solution
What is the best case scenario in the naive search algorithm?
a. Pattern P at the beginning of text T b. Pattern P not in text T c. Pattern P at the end of text T d. Pattern P is in the middle of text T
A(n) ____________________ signals an end to an e-mail message using words such as "Thank you" or "Regards."
Fill in the blank(s) with the appropriate word(s).
A user calls the helpdesk using a Windows XP computer. They are trying to save files to a ROM DVD but they cannot get the files to save. Why is this?
a. The DVD is not formatted with NTFS b. The DVD is not formatted with DOS c. The DVD is read only d. XP doesn't support DVD media