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¿Qué es la tercera forma normal (3NF)?

Una tabla en 2NF sin dependencias transitivas

100%

Una tabla con atributos repetitivos

Una tabla en 1NF sin dependencias funcionales

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¿Qué es una dependencia transitiva en el contexto de la 3NF?

Cuando un atributo no clave depende de otro atributo no clave

100%

Cuando un atributo no clave depende de una clave externa

Cuando un atributo no clave depende de la clave primaria

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¿Qué es una dependencia funcional completa?

Cuando un atributo depende de otro atributo no clave

Cuando un atributo depende de toda la clave primaria y no de un subconjunto

100%

Cuando un atributo depende de un subconjunto de la clave primaria

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¿Qué práctica se recomienda para cerrar conexiones a bases de datos en Java a partir de JDBC 4.1?

¿Cuál es una característica que comparten herramientas como DBeaver y HeidiSQL?

Son multiplataforma y compatibles con varios motores

100%

Solo funcionan con un tipo de base de datos

Son exclusivas para bases de datos Oracle

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Is the component below defined correctly?

Please, select the correct statements regarding fixes/improvements that can be done with the component.

someProp should be placed in the dependency array

100%

doSomething should be placed in the dependency array

everything is good

it is better to place the doSomething function inside of the effect

100%

it is better to remove the second argument of the effect

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What the dependency array of useCallback should be in the code below?

we should remove the dependency array at all

it should be like this: [addValue]

100%

it should be left empty as it is

it should be like this: [addValue, setCount]

it should be like this: [setCount]

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Please, select what can be passed as a second argument of connect function

mapState function

state

mapDispatch function

100%

dispatch function

an object filled in with action creators

100%

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Will the ErrorBoundary component handle the error in the code below?

No, because error boundary component can handle only issues of children components wrapped with this error boundary component

100%

It will work as if the whole SimpleComponent was wrapped inside of ErrorBoundary

Error that happens in the js does not affect rendering of SimpleComponent. ErrorBoundary is not needed here

Yes, it will handle the jsx inside of it

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Suppose, we have the next code:

What will happen if ComponentA updates value by calling setValue?

value will be updated, ComponentA will not be rerendered

value will not be updated, ComponentA will not be rerendered

value will be updated, ComponentA will be rerendered

100%

error

Infinite loop

value will not be updated, ComponentA will be rerendered

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