Answer:
Four types of errors program should test for user input are given in explanation
Explanation:
1. Program should test that extension contains exactly three letters
2. Program should test that extension doesn't contain any number or special character
3. Program should test that extension doesn't contain any white space
4. Program should test that extension doesn't contain any punctuation mark
Web 2.0 Tools can aid in searches using key words
Explanation:
Web 2.0 Tools can aid in searches using key words .The followings are some tool like face book and you tube and google search that allow users to searches using key words. web 2.0 tools can be used to teach curriculum content, store data, create and edit video, edit photos,etc.,
Web 2.0 tools are easy to use websites designed to encourage creativity, team work, also helps in higher order thinking skills in classroom .The important thing is to teach students to think critically with whatever tools they have in front of them using key words while searching.
Answer:
Business Context
Explanation:
The input "business context" is an input to Program Increment Planning that helps understand what is the vision in Product Management.
Charles should type in Https:web.com but should visit the sites containing ".org,".Gov'" and make sure they've been updated recently.
He should also check for authors and dates.
Or he can go to a library online if he is doing a research paper.
Answer:
Mainframes
Explanation:
Mainframes are utilized by many major corporations and government agencies. They are also used in banking, accounting, and healthcare to name a few.
