Answer: d) Hierarchy of data
Explanation:
- Hierarchy of data is defined as arrangement of data in systematic way .The arrangement of files,character,records etc is done in a particular order usually in terms of highest level and lowest level .
- According to the question ,hierarchy of data should be used for organizing data from smallest stage to highest stage for database designing.
- Other options are incorrect alphabetical designing is based on alphabetical order. Detail structure is a model made on basis of details and features.
- Data design is the model or structure that includes data and related factors as building block.Logical order is the organizing elements on basis of particular logic.
- Thus, the correct option is option(d).
Answer:
Yes
Explanation:
Spreadsheets should be used to capture the results of science experiments because they are good for sorting data. They make results easier and information easier to see and use.
Answer:
1.Use passwords that can't be easily guessed, and protect your passwords.
2.Minimize storage of sensitive information.
3.Beware of scams.
4.Protect information when using the Internet and email.
5.Make sure your computer is protected with anti-virus and all necessary 6.security "patches" and updates.
7.Secure laptop computers and mobile devices at all times: Lock them up or carry them with you.
8.Shut down, lock, log off, or put your computer and other devices to sleep before leaving them unattended, and make sure they require a secure password to start up or wake-up.
9.Don't install or download unknown or unsolicited programs/apps.
Secure your area before leaving it unattended.
10.Make backup copies of files or data you are not willing to lose.
Explanation:
The answer is (c.) synthetic rubber
The impeller pump in some outboard motor is made of synthetic rubber. The purpose of the impeller in the motor is for the cooling. It is used to pump the water to the engine from below. It has a standard design and it only uses rubber as the material.
