WebTechFinal

Question 1

Describe three different ways to create a JS object.

Answer 1

Object Literal Notation

Constructor Function

Object.create() Method

Question 2

What is DOM and BOM?

Answer 2

a programming interface for web documents.

a programming interface for web browsers.

Question 3

What is a JS Promise?

Answer 3

JavaScript object for managing asynchronous operations’ outcomes.

Question 4

Why do we need to use JWT?

Answer 4

Secure data transmission and authentication in web apps.

Question 5

Briefly describe the HTTP protocol

Answer 5

Hypertext Transfer Protocol for transmitting hypermedia documents over the internet.

Question 6

What is the difference between v-model and v-bind?

Answer 6

v-model for two-way binding, v-bind for one-way binding.

Question 7

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

Answer 7

Child components emit events, parent components listens.

Question 8

What is dependency injection in Spring Framework?

Answer 8

Injecting external dependencies in Spring.

Question 9

What is CORS?

Answer 9

Allows web page resource request to other domains securly

Question 10

Explain IoC and DI

Answer 10

IoC shifts control to frameworks

DI externally provides dependencies to classes.

Question 11

What is TDD and why it is useful?

Answer 11

Writing tests before code for better-designed software.

Question 12

Why do we need to use a Key Vault?

Answer 12

Secure storage and management of sensitive information.

Question 13

List 2 benefits of using CI/CD.

Answer 13

Faster delivery.
Continuous integration.

Question 14

What is a Spring Data JPA query method?

Answer 14

method signature used for auto-generating queries

Question 15

What is the major benefit of using a Docker container?

Answer 15

Efficient deployment and scalability.

Question 16

Why do we need pagination?

Answer 16

Efficiently manage large datasets.