Options: a. When you use multiplication, division, or exponentiation in a formula b. When you use addition and subtraction in a formula c. Because excel uses hidden decimal places in computation d. When you show the results of formulas with different decimal places that the calculated results
Options: as parallel run involves two different terminals accessing a common database, computers are essential for systems Analysis, Flow of information in an organization is always vertical, alpha testing is the verification process a system goes through for the first time
Options: a set of physical layer standards developed by EIA and intended to replace RS-232-C., a check bit appended to an array of binary digits to make the sum of the all the binary digits, a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression the resulting expression will not conform to the rules of construction and thus the presence of the errors is detected, the ratio of the number of data units in error to the total number of data units
. 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
An intrusion detection system does not perform which of the following?
Options: Tries to identify attempts to hack into a computer system., May monitor packets passing over the network., May transmit message packets to the correct destination., Set up deception systems that attempt to trap hackers.