Advanced JSON Topics and Best Practices

Question 1 of 20

What is the main purpose of using JSON Schema in complex data systems?

Choose 1 answer

A. To define JSON data structures and validation rules

B. To optimize JSON data for faster transmission

C. To convert JSON data into XML format

D. To encrypt JSON data for secure communication

Question 2 of 20

True or False: JSON Schema validation can enforce constraints on nested objects and arrays.

Choose 1 answer

A. True

B. False

Question 3 of 20

Which JSON Schema keyword allows specifying the data type of a property? (Select all that apply)

Choose 1 answer

A. type

B. format

C. pattern

D. enum

E. minimum

Question 4 of 20

When handling large JSON files, which technique can help mitigate performance issues? (Select all that apply)

Choose 3 answers

A. Using streaming to process data incrementally

B. Compressing JSON data

C. Loading the entire file into memory at once

D. Using JSONPath to filter data before processing

E. Increasing server resources to handle large files

Question 5 of 20

True or False: JSONPath allows you to perform calculations on JSON data directly within its expressions.

Choose 1 answer

A. True

B. False

Question 6 of 20

Which of the following are best practices for JSON data formatting? (Select all that apply)

Choose 3 answers

A. Use meaningful and consistent key names

B. Avoid using nested structures where possible

C. Include comments within JSON data for clarity

D. Use appropriate data types for values

E. Keep JSON data as flat as possible to reduce complexity

Question 7 of 20

What is the JSON Schema keyword 'pattern' used for?

Choose 1 answer

A. To define a regular expression pattern that a string must match

B. To specify the maximum number of items in an array

C. To define a default value for a property

D. To specify a set of allowed values for a property

Question 8 of 20

Which of the following tools or libraries can be used for JSON Schema validation in Node.js? (Select all that apply)

Choose 3 answers

A. Ajv

B. Joi

C. jsonschema

D. Yup

E. lodash

Question 9 of 20

In JSONPath, what does the expression '$..[*].name' select?

Choose 1 answer

A. All 'name' values in the JSON data

B. The first 'name' value in each object

C. The 'name' property in the top-level array

D. All objects with a 'name' property

Question 10 of 20

What approach is typically used to handle JSON data that is too large to fit into memory? (Select all that apply)

Choose 3 answers

A. Use streaming parsers to process data in chunks

B. Compress the JSON data before processing

C. Increase available system memory

D. Use database storage for large datasets

E. Load the entire data set into an in-memory cache

Question 11 of 20

True or False: The 'additionalProperties' keyword in JSON Schema can be used to allow or disallow properties that are not explicitly defined in the schema.

Choose 1 answer

A. True

B. False

Question 12 of 20

Which JSON Schema keyword is used to specify that a property must be a string of a specific length?

Choose 2 answers

A. minLength

B. maxLength

C. length

D. pattern

Question 13 of 20

Which tool or library is commonly used for querying JSON data using JSONPath in JavaScript applications? (Select all that apply)

Choose 2 answers

A. jsonpath

B. jmespath

C. lodash

D. jq

E. json-query

Question 14 of 20

Which keyword in JSON Schema is used to define that a property is an array of unique items?

Choose 1 answer

A. uniqueItems

B. distinctItems

C. items

D. arrayItems

Question 15 of 20

What does the 'format' keyword in JSON Schema validate? (Select all that apply)

Choose 3 answers

A. Email addresses

B. Dates

C. IP addresses

D. Numeric ranges

E. JSON structure

Question 16 of 20

What is a common technique for querying large JSON datasets efficiently?

Choose 1 answer

A. Using JSONPath to filter and extract specific data

B. Compressing JSON data to reduce its size

C. Converting JSON data to a relational database

D. Increasing application memory to handle large datasets

Question 17 of 20

True or False: The 'additionalProperties' keyword in JSON Schema allows for specifying additional properties that are not defined in the schema.

Choose 1 answer

A. True

B. False

Question 18 of 20

In JSON Schema, which keyword is used to define the default value of a property if no value is provided?

Choose 1 answer

A. default

B. value

C. initial

D. fallback

Question 19 of 20

What does the 'items' keyword in JSON Schema define for an array? (Select all that apply)

Choose 2 answers

A. The type of items in the array

B. The number of items allowed in the array

C. Constraints on each item in the array

D. The default value for array items

Question 20 of 20

Which method is recommended for parsing large JSON data streams in a browser environment?

Choose 2 answers

A. Using a streaming JSON parser library

B. Using JSON.parse() directly on the entire data

C. Using Web Workers to process data in the background

D. Loading the data into IndexedDB and querying it

Practice Test

Question 1 of 20

Choose 1 answer

Question 2 of 20

Choose 1 answer

Question 3 of 20

Choose 1 answer

Question 4 of 20

Choose 3 answers

Question 5 of 20

Choose 1 answer

Question 6 of 20

Choose 3 answers

Question 7 of 20

Choose 1 answer

Question 8 of 20

Choose 3 answers

Question 9 of 20

Choose 1 answer

Question 10 of 20

Choose 3 answers

Question 11 of 20

Choose 1 answer

Question 12 of 20

Choose 2 answers

Question 13 of 20

Choose 2 answers

Question 14 of 20

Choose 1 answer

Question 15 of 20

Choose 3 answers

Question 16 of 20

Choose 1 answer

Question 17 of 20

Choose 1 answer

Question 18 of 20

Choose 1 answer

Question 19 of 20

Choose 2 answers

Question 20 of 20

Choose 2 answers

Quick Link

Query

Follow Us