In one sentence, what does updating a master file record involve?
What will be an ideal response?
Updating a master file record involves changing the value of one or more of its variable fields to reflect the effects of a transaction.
PTS: 1
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The quickest way to save a table is to click the Save button on the ____________________ toolbar.
Fill in the blank(s) with the appropriate word(s).
Suppose that only 80% of the STUDENT records from Exercise 17.28 have a value for PHONE, 85% for MAJORDEPTCODE, 15% for MINORDEPTCODE, and 90% for DEGREEPROGRAM, and we use a variable-length record file. Each record has a 1-byte field type for each field occurring in the record, plus the 1-byte deletion marker and a 1-byte end-of-record marker. Suppose we use a spanned record organization, where each block has a 5-byte pointer to the next block (this space is not used for record storage).
(a) Calculate the average record length R in bytes. (b) Calculate the number of blocks needed for the file.
During a Linux security audit at a local college, it was noted that members of the dean's group were able to modify employee records in addition to modifying student records, resulting in an audit exception. The college security policy states that the dean's group should only have the ability to modify student records. Assuming that the correct user and group ownerships are in place, which of the following sets of permissions should have been assigned to the directories containing the employee records?
A. R-x---rwx B. Rwxrwxrwx C. Rwx----wx D. Rwxrwxr—
Images make web pages visually stimulating and more exciting than pages that contain only text.
Answer the following statement true (T) or false (F)