Suppose you need to make two overloaded operator functions for the minus operator, placing them both in the same struct definition. You can do this as long as:
A. their parameters are of different types
B. one passes in one parameter, and the other passes in two parameters
C. the return types are different for both
D. both the return types and the parameters are of different types
A
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As you work, the History panel records your steps and lists the last twenty of them, called ____, in the panel.
A. samples B. snapshots C. multiples D. states
Suppose that a disk unit has the following parameters: seek time s=20 msec; rotational delay rd=10 msec; block transfer time btt=1 msec; block size B=2400 bytes; interblock gap size G=600 bytes. An EMPLOYEE file has the following fields: SSN, 9 bytes; LASTNAME, 20 bytes; FIRSTNAME, 20 bytes; MIDDLE INIT, 1 byte; BIRTHDATE, 10 bytes; ADDRESS, 35 bytes); PHONE, 12 bytes); SUPERVISORSSN, 9 bytes; DEPARTMENT, 4 bytes; JOBCODE, 4 bytes; deletion marker, 1 byte. The EMPLOYEE file has r=30000 STUDENT records, fixed-length format, and unspanned blocking. Write down appropriate formulas and calculate the following values for the above EMPLOYEE file:
(a) The record size R (including the deletion marker), the blocking factor bfr, and the number of disk blocks b. (b) Calculate the wasted space in each disk block because of the unspanned organization. (c) Calculate the transfer rate tr and the bulk transfer rate btr for this disk (see Appendix B for definitions of tr and btr). (d) Calculate the average number of block accesses needed to search for an arbitrary record in the file, using linear search. (e) Calculate the average time needed in msec to search for an arbitrary record in the file, using linear search, if the file blocks are stored on consecutive disk blocks and double buffering is used. (f) Calculate the average time needed in msec to search for an arbitrary record in the file, using linear search, if the file blocks are not stored on consecutive disk blocks. (g) Assume that the records are ordered via some key field. Calculate the average number of block accesses and the average time needed to search for an arbitrary record in the file, using binary search.
The ________ attribute specifies the amount of space in pixels that will appear on the left and right sides of a frame
Fill in the blank(s) with correct word
A condition that occurs when the value of one non-key field is functionally dependent on the value of another non-key field.
What will be an ideal response?