Let’s see json interview questions and answers.

What is MIME format type JSOn file content

MIME abbreviated as Multipurpose Internet Mail Extensions, is a format used to send in requests and responses, transferred between client and server across the internet. Content-Type and Accept headers in a request object specified with this format following is the mime type for these documents


The request contains the below value for INI data sending over the internet.

Content-type : application/json

How to open a json file.

JSON files are with keys and values with extensions. It includes plain text content with special rules.

All the popular IDEs support the json file and provide plugins to validate the json file content.

  • Notepad++
  • Eclipse
  • Visual Studio Code

What is the JSON file used for?

The JSON file transfers data between the Client and Server using HTTP APIs. It uses to store environment information for configuration.

The following are use cases.

  • API Communication with the producer adds the JSON object, And the Consumer consumes it
  • Serialization of data between different machines.

What is an extension of a JSON object file?

JSOn content placed in a file with the extension .json.

JSON files can be created and updated with any text editor IDE or simple notepad.

What is full-form JSON?

JSON full form is JavaScript Object Notation.

What is the difference between JSON and XML?

JSON is a simple javascript object notation with the key and value of data types XML is an Extensible markup language with data of no type

Javascript object notationExtensible markup language
Complex data format based on schemaLightweight data format
Easy to read by humansIt is difficult to read by humans
Data is represented as keys and values like objectsIt has start and end tags
Supports Array with a list of valuesNo support for arrays
Comments are not supportedAllows Comments
Limited Security supportSecurity is good
Encoding is UTF-8Supports all encoding such as UTF-8, ISO-8859-1, etc