Records in a sequential file are not usually updated in place. Instead ________.

a. the updated data is placed in a “surrogate” file
b. the entire file is usually rewritten
c. the file is truncated
d. The above statement is false—records in sequential files are usually updated in place.


b. the entire file is usually rewritten

Computer Science & Information Technology

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Draw a UML activity diagram describing the dependency between activities for a life cycle in which requirements, design, implementation, test, and maintenance occur concurrently. (This is called an evolutionary life cycle.)

What will be an ideal response?

Computer Science & Information Technology

Which chart element cannot be chosen from the Chart Elements dialog box?

A) Chart Title B) Error Bars C) Axis Titles D) Format Back Wall

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Which of the following terms is the time it takes a signal to travel from one location to another on a network?

A. latency B. symmetry C. frequency D. delay register

Computer Science & Information Technology

An investor purchases 75 shares of Reebok stock at $41.68 per share. Find the cost of the stock. If the broker charges 1.75% of the cost of the stock plus 12 cents per share, find his commission on this purchase. Please round your answers to the nearest cent.The cost of the stock is $__________. The commission is $__________.

What will be an ideal response?

Computer Science & Information Technology