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4 years ago

When data are normalized, attributes in the table depend only on the secondary key?

1 answer:

3 0

False
They depend only on the secondary key and not the primary key. Normalization analyzes and reduces a relational database to its streamlined form for min redundancy, and data integrity. A primary key uniquely identifies all table records. They typically appear as columns in a relational DB.

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A design tool helps you plan, evaluate, and explain your ideas to create a product. Some examples of design tools are outlines,

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I might be true and might not which chances are 50%

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3 years ago

Drag the tiles to the correct boxes to compete the pairs. Identify the types of chemical reactions occurring in the chemical equ

ioda

The question is incomplete. The complete question is :

Drag the tiles to the correct boxes to compete the pairs. Identify the types of chemical reactions occurring in the chemical equations.

combustion reaction , photosynthesis , respiration

water + carbon dioxide + sunlight → oxygen + glucose

methane + oxygen → water + carbon dioxide + heat

glucose + oxygen → carbon dioxide + water + energy

Solution :

The chemical reactions that is occurring in the following chemical equations are :

Photosynthesis

water + carbon dioxide + sunlight → oxygen + glucose

Plants uses the light energy from the sun in the presence of water and carbon dioxide produces food by the process of photosynthesis. It produces glucose and oxygen.

Respiration

glucose + oxygen → carbon dioxide + water + energy

The cellular respiration process produces ATP with the breakdown of the glucose and oxygen. During respiration process, carbon dioxide is obtained along with water and energy.

Combustion reaction

methane + oxygen → water + carbon dioxide + heat

Combustion reaction is a chemical reaction in which methane is the main ingredient. Combustion takes place as things burn in the presence to methane and oxygen to form carbon dioxide, water and heat.

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3 years ago

How do you download a video from sendvid

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You copy the url and paste it in the box on the website

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4 years ago

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A construction firm is building a power plant at a remote and isolated mine site and needs to connect the data network of the pl

Artist 52 [7]

Answer: Satellite Internet

Explanation:

Satellite internet is the internet access facility which is generated through satellites.Its a rapid and secured access that can be connected to communication and geostationary based satellite.

It is somewhat expensive access. It can be accessed in those regions where internet infrastructure is not present.
According to the question, satellite internet should be used for communication between corporation and mine site.It can access communication and monitoring through satellites.

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3 years ago

A device that filters data traffic at a network boundary

Semmy [17]

Answer:

Bridges

Explanation:

A bridge is a transition effects that separates network traffic at the network's edge. By splitting a local area network into two parts, bridges minimise the number of bandwidth.

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3 years ago