The approach used in top-down analysis and design is
Options: to identify the top level functions by combining many smaller components into a single entity, to prepare flow charts after programming has been completed, to identify a top level function an d then create a hierarchy of lower-level modules and components., All of the above
. In a punched card system, data is processed by a
Options: A) Keypunch machine, sorter and posting machine
B) Accounting machine, posting machine, and billing machine
C) Sorter, posting machine, and billing machine
D) Accounting machine, keypunch machine and sorter
Two computers that communicate with each other use a simple parity check to detect errors for ASCII transmissions. Which of the following events will always lead to an undeleted error?
Options: one bit or any odd number of bits inverted in a block of data during transmission, two bits or any even number of bits inverted in a block during transmission, one bit or any odd number of bits inverted in a byte during transmission, two bits or any even number of bits inverted in a byte during transmission
. Which of the following statements about calculated fields is NOT true?
Options: a. A calculated field does not store data in a recordset.
b. Calculated fields use an expression or formula as its data source.
c. Data contained in a calculated field is created the first time a query is run.
d. A calculated field can be created using the Expression Builder dialog box.