WEBTECH QUIZES\

Question 1

What is the difference between v-show and v-if directives?

Answer 1

v-show renders an element to the DOM and then uses the CSS display property to show/hide elements based on expression

Question 2

What is the difference between computed properties and methods?

Answer 2

Computed properties will cache the result

Question 3

Which of the following is NOT a vue life cycle state?

Answer 3

afterCreated

Question 4

Assume items is an array defined in the data option of a Vue instance, in Vue 2, which of the following operations on this array cannot be detected by Vue?

Answer 4

items[2] = newValue

Question 5

Which of the following has error?

Answer 5

<img></img>

Question 6

In Vue 3, which of the following is not an option (properties we used in Vue’s constructor) used to create a Vue instance?

Answer 6

el

Question 7

Which part of the code corresponds to the first “V” in MVVM?

Answer 7

HTMLs in div with id=”app”

Question 8

Which directive provides two-way data binding?

Answer 8

v-model

Question 9

How does Vue.js change the CSS class of a div?

Answer 9

Using v-bind

Question 10

Think about Vue’s life cycle, when does Vue get ready (In other words, Vue becomes reactive and can help you bind data to html

Answer 10

mounted

Question 11

Which of the following is NOT an option in a Vue component?

Answer 11

slots

Question 12

How to register component A inside another one, say component B?

Answer 12

Using component B’s option “components

Question 13

How does a parent component pass data to its child component?

Answer 13

using props defined in the child component

Question 14

What is a slot in Vue.js?

Answer 14

It is used to pass content from parent to child component

Question 15

When do you need to use named slots?

Answer 15

When a child component needs to receive multple contents from its parent component

Question 16

What is Element Plus?

Answer 16

It is a free Vue 3.0 component library

Question 17

If a child component emits an event called “item-changed”, what is the syntax for its parent to capture this event?

Answer 17

@item-changed

Question 18

How many Spring projects are there as of March 2023?

Answer 18

21

Question 19

How do you inject a dependency bean to a dependent bean in Spring?

Answer 19

Using constructor argument

Question 20

Which one of the following statements is correct?

Answer 20

Spring Boot is an extension of Spring framework.

Question 21

Which of the following about Maven is correct?

Answer 21

A popular Java build tool

Question 22

Which of the following HTTP method should be used to fetch resource using RESTful web service?

Answer 22

GET

Question 23

Which of the following is NOT a REST constraint?

Answer 23

responsive

Question 24

Which of the following is a REST API endpoint?

Answer 24

/students/178965285

Question 25

Which of the following is NOT correct

Answer 25

One web application needs only one unit test