If an input mask is used, data will not be restricted during entry.

Which of the following is not a disadvantage of trying to modify a sequential access file?

a. Modifying data can potentially destroy other data. b. It may be necessary to rewrite every record in the file to make a slight change. c. Things that are stored in the same number of “raw data” bytes internally may not take up the same amount of space in a file. d. Overwriting a record with another record of the same size is very difficult.

?Any Internet traffic that is not explicitly permitted into the internal network is denied entry through a firewall.

Answer the following statement true (T) or false (F)