Q82.
c
Section
8-2 System component
Answer
Explanation
Initial costs are costs that occur when an information system is installed. Operator costs,
equipment maintenance costs, and equipment leasing costs are costs that occur after the information system is installed.
Q83.
d
Section
7-2 Algorithms and programming
Answer
Explanation
JavaBeans is a Java class developed in Java. It is a technical specification for creating Java
programs that are partitioned into components (beans).
Advantages of JavaBeans include development of new programs and increased development
efficiency through reuse and combination of programs partitioned into components.
Q84.
b
Section
9-4 Network
Answer
Explanation
The length of time the line is used to transmit the daily report data is 50 minutes 30 seconds,
and this is rounded up to 51 minutes for the calculation. The connection fee (monthly) for
transmitting the daily report data is,
Basic fee 2,600 yen/month + (40 yen/minute × 51 minutes/day × 20 days) = 43,400 yen/
month
If the data is compressed, the length of time the line is used is,
50 minutes 30 seconds × 0.6 = 30 minutes 18 seconds *Rounded up to 31 minutes
If the data is compressed, the connection fee (monthly) is,
Basic fee 2,600 yen/month + (40 yen/minute × 31 minutes/day × 20 days) = 27,400 yen/
month
The difference between the connection fees (monthly) before and after data compression is,
43,400 yen/month − 27,400 yen/month = 16,000 yen/month
The number of months required to recover the cost of purchasing the software (112,000 yen)
is,
112,000 yen ÷ 16,000 yen/month = 7 months
Q85.
c
Section
9-1 Human interface
Answer
Explanation
Pull-down and pop-up menus display options in list format, enabling an option to be selected
and inputted. Therefore, when newly registering product data, by using a pull-down or pop-up
menu for the “product category” that is selected from among five (5) categories determined
beforehand, the product category can be inputted efficiently and input errors can be avoided.
“Product number”, “product name”, and “price”, are items that are suited to direct input from
the keyboard.
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