Max fails and fail timeout in Nginx - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the maximum number of failed attempts before marking a server as down.

Nginx

server backend1.example.com max_fails=[1] fail_timeout=10s;

Drag options to blanks, or click blank then click option'

A3

B5

C0

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Setting max_fails to 0 disables failure counting, which is not intended here.

Using a string like 'five' instead of a number.

The max_fails directive sets how many failed attempts are allowed before the server is considered unavailable. Here, 3 is a common choice.

2fill in blank

medium

Complete the code to set the fail timeout period after max fails is reached.

Nginx

server backend2.example.com max_fails=3 fail_timeout=[1];

Drag options to blanks, or click blank then click option'

A10s

B30s

C5s

D60s

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the time unit causes a syntax error.

Setting fail_timeout too low or too high without reason.

The fail_timeout directive sets how long to consider the server down after max_fails is reached. 10 seconds is a typical value.

3fill in blank

hard

Fix the error in the server block to correctly set max_fails and fail_timeout.

Nginx

server backend3.example.com max_fails=[1] fail_timeout=10s;

Drag options to blanks, or click blank then click option'

A-1

B3

Cfive

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using words instead of numbers.

Using zero or negative numbers.

The max_fails value must be a positive integer. 'five' is invalid, 0 disables failure counting, and negative numbers are invalid.

4fill in blank

hard

Fill both blanks to set max_fails to 4 and fail_timeout to 20 seconds.

Nginx

server backend4.example.com max_fails=[1] fail_timeout=[2];

Drag options to blanks, or click blank then click option'

A4

B10s

C20s

D5

Attempts:

3 left

💡 Hint

Common Mistakes

Using a number without a time unit for fail_timeout.

Setting max_fails to zero.

max_fails is set to 4, and fail_timeout must include a time unit, here 20 seconds.

5fill in blank

hard

Fill all three blanks to configure max_fails as 2, fail_timeout as 15 seconds, and add a weight of 5.

Nginx

server backend5.example.com max_fails=[1] fail_timeout=[2] weight=[3];

Drag options to blanks, or click blank then click option'

A2

B15s

C5

D10

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting the time unit in fail_timeout.

Using invalid values for weight.

max_fails is 2, fail_timeout is 15 seconds with unit, and weight is set to 5 to influence load balancing.