Compare an incremental backup and a differential backup.
What will be an ideal response?
Both an incremental backup and a differential backup will back up only files with the archive bit turned on. The difference is that an incremental backup will turn off the archive bit of each file it backs up, while a differential backup will not. This makes a differential backup a cumulative backup.
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____ refers to controlling the way the value of a variable is printed or displayed.
A. Debugging B. Initialization C. Formatting D. Declaration
Calculate the blocking factor bfr and the number of file blocks b assuming an unspanned organization.
Consider a disk with block size B=512 bytes. A block pointer is P=6 bytes long, and a record pointer is P R =7 bytes long. A file has r=30,000 EMPLOYEE records of fixed-length. Each record has the following fields: NAME (30 bytes), SSN (9 bytes), DEPARTMENTCODE (9 bytes), ADDRESS (40 bytes), PHONE (9 bytes), BIRTHDATE (8 bytes), SEX (1 byte), JOBCODE (4 bytes), SALARY (4 bytes, real number). An additional byte is used as a deletion marker.
Most Web pages begin with "www" (which indicates that the page is on the World Wide Web), followed by a dot, or period, and then the Web site's name, known as the ____.
A. filename B. http C. domain name D. URL
Which of the following content controls do you insert when you want users to select from a list or add a new item to a list?
A. Building Block Gallery B. Drop-Down List C. Check Box D. Combo Box