CompSci District Test Prep Form I

A network host has an IPv4 address of 192.168.12.155. Which of the following notational systems is used to represent this IP address?

• Hexadecimal

• Decimal

• Octal

• Binary

A programmer is creating an application that needs to store a value indicating if the user is logged in or not. Which of the following would be the BEST data type to accomplish this?

• Boolean

• String

• Float

• Integer

Mark wants to include a string in his computer program that lets users know they have selected the correct option. He wants to include the option in double quotes. However, the entire string also needs to be delimited by double quotes. Which of the following is the string Mark should use to include the option in double quotes?

• "Congratulations! "Launch Audit" is the correct option."

• "Congratulations! \"Launch Audit\" is the correct option."

• "\Congratulations! "Launch Audit" is the correct option."

• "\Congratulations! "Launch Audit" is the correct option."

Which of the following does a computer use to make sure that people, hardware, and software can interface with each other?

• GUI (graphical user interface)

• Application and hardware interface

• OS (operating system)

• Device driver

Which of the following are examples of input devices? (Select two.)

• Projectors

• Keyboards

• Touch Screens

• Speakers

• Monitors

Which of the following are features of using an Excel table to store data? (Select two.)

• Column sorting

• Data correlation

• Range

• Total row

• Graphing

Firewalls, data encryption, backups, and passwords are designed to protect computing devices. These technologies are all examples of what?

• Secure transactions

• Data protection

• File compression

• Security controls

While both the integer data type and float data type can be used for whole numbers, what advantage does the float data type have over integers?

• Floats use less storage than an integer.

• Floats represent two values - True or False.

• Floats can include decimal places.

• Floats can store a word or sentence.

A developer is creating an application that requires a value to be stored with decimal precision. Which of the following data types should be used for the variables that will store these values?

• Integer

• Float

• String

• Boolean

A software developer is creating a variable to hold whole numbers and will perform numeric operations on the values stored in that variable. Which of the following data types is the BEST for this purpose?

• Float

• String

• Integer

• Boolean