Nodejs: Error Handling

Which of the following is a type of error?

• Programmer error

• Operational/System Error

• None of the options

• All of the options

Which of the following is NOT an example of Programmer Error?

• Array index out of bounds

• Syntax Error

• Socket hang up Error

• Reference Error

Which of the following is not an Operational Error

• Request Timeout Error

• Socket hang up

• Out of memory Error

• Reference Error

Which of the following are ways to handle errors in Nodejs

• try...catch block

• if...else statement

• for...in loop

• .then().catch()

In an inbuilt Nodejs callback function, what is the first parameter of the function

• req

• res

• err

• next

When an error occurs, which of the following can we use to indicate where the error is coming from?

• database

• file

• stack trace

• imagination

Error at Object.<anonymous> (/Users/adesojidaniel/Desktop/Workspace/alt_school/example-nodejs-server-express/api.js:50:22)


Looking at the above stack trace error, which of the following is not true?

• The error is coming from line 22

• The error is coming from a file api.js

• 50 is the line of code where the error occurd

• 22 is the column in the line

When using promises, which function handles the error?

• resolve

• reject

• revolve

• rebuke

Whenever an error occurs somewhere in the application, what can we use to handle that error?

• Local error handler

• Global error handler

• Wide Error handler

• System error handler

What is the HTTP status code for Server Error

• 200

• 300

• 400

• 500