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Descriptive Statements:
- Demonstrate knowledge of how information (e.g., text, image, sound) can be represented digitally by binary data.
- Demonstrate knowledge of characteristics of binary, decimal, and hexadecimal number systems.
- Demonstrate knowledge of basic computer architecture and peripherals (e.g., processors, memory, storage, sensors).
- Demonstrate knowledge of the characteristics and functions of operating systems.
- Apply knowledge of strategies for troubleshooting basic hardware and software problems.
Sample Item:
The hexadecimal number 4F is equivalent to what decimal number?
- 19
- 79
- 154
- 415
Correct Response and Explanation (Show Correct ResponseHide Correct Response)
B. In hexadecimal notation, the symbols 0 – to 9 are used to represent the numbers 0 – to 9 and the symbols A – to F represent the numbers 10 – to 15. Hexadecimal is a base-16 system. The hexadecimal number 4F can be converted to a decimal number as follows: 4 × 161 + 15 × 160 = 4(16) + 15(1) = 64 + 15 = 794 times 16 superscript 1 plus 15 times 16 superscript 0 equals 4 left parenthesis 16 right parenthesis plus 15 left parenthesis 1 right parenthesis equals 64 plus 15 equals 79.
Descriptive Statements:
- Demonstrate knowledge of terminology and concepts related to computer networks (e.g., client, server, bandwidth, protocol).
- Identify the basic structure and features of the Internet.
- Demonstrate knowledge of concepts related to data transfer on the Internet (e.g., routing, packet switching, https).
- Demonstrate knowledge of terminology and concepts related to mobile technologies (e.g., apps, wireless connectivity, security) and the interaction between mobile devices and networks.
- Demonstrate knowledge of cybersecurity issues related to networks and the Internet (e.g., firewalls, data encryption, malware).
Sample Item:
A client-side scripting language would most likely be used for which of the following tasks?
- rerouting messages
- storing information in a database
- adding interactivity to a web page
- executing code on a web server
Correct Response and Explanation (Show Correct ResponseHide Correct Response)
C. In client-side scripting, source code is transferred from the web server to a user's computer over the Internet and run directly in the browser. Client-side scripting allows a web page to behave differently in response to mouse or keyboard actions. Rollover buttons, pop-up balloons, and filters for search criteria are all examples of interactive features that can be produced with client-side scripting.
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