NodeJs: Cron jobs

What is a cron job in the context of Node.js?

• A web server

• A scheduled task

• An asynchronous function

• A database query

Which npm package is commonly used for scheduling cron jobs in Node.js?

• express

• mongoose

• node-schedule

• nodemon

What is the purpose of a cron expression in Node.js?

• To define a function

• To specify a time schedule

• To handle errors

• To declare variables

In a cron expression, what does "0 0 ***" represent?

• Every minute

• Every hour

• Every midnight

• Every second

What is a recommended approach for testing cron jobs in a Node.js project?

• Using unit tests for the scheduled function

• Manually running the cron job and checking the logs

• Running integration tests

• All of the options

Every 15 minutes, we want to check the users that just signed up on our platform. Which expression can we use?

• */15 * * * *

• • * */15 * * *

• • * * */15 * *

• • * * * */15 *

We have written our cron job task in main.js. How do we start the process for the cron job

• node-schedule main.js

• schedule main.js

• node main.js

• npm start:main

• * * * * *
  
  What does the first asterisk signify

• days

• hours

• weeks

• minutes

What would be the expression for at every half hour

• */60 * * * *

• */30 * * * *

• • * */60 * * *

• • * */30 * * *

One of the following is not suitable for cron jobs

• Data cleanups

• Renewing subscriptions

• Uploading/Processing images or videos

• System maintenance