Backup servers in Nginx - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a backup server in the upstream block.

Nginx

upstream backend {
    server backend1.example.com;
    server [1] backup;
}

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

Abackend2.example.com

Bbackend3.example.com

Cbackend4.example.com

Dbackend5.example.com

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to add the 'backup' keyword after the server address.

Using the wrong server address.

The backup server is defined by adding the backup keyword after the server address. Here, backend2.example.com is set as the backup server.

2fill in blank

medium

Complete the code to set the proxy_pass directive to use the upstream group.

Nginx

location / {
    proxy_pass http://[1];
}

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

Alocalhost

Bbackend1.example.com

Cbackend

Dbackup

Attempts:

3 left

💡 Hint

Common Mistakes

Using a server address instead of the upstream group name.

Forgetting to use the upstream group name.

The proxy_pass directive should point to the upstream group name, which is backend in this case.

3fill in blank

hard

Fix the error in the upstream block to correctly mark the backup server.

Nginx

upstream backend {
    server backend1.example.com;
    server backend2.example.com [1];
}

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

Asecondary

Bbackup_server

Cstandby

Dbackup

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect keywords like 'backup_server' or 'secondary'.

Omitting the backup keyword.

The correct keyword to mark a backup server in nginx is backup. Other options are invalid and cause errors.

4fill in blank

hard

Fill both blanks to define two servers, one main and one backup, in the upstream block.

Nginx

upstream backend {
    server [1];
    server [2] backup;
}

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

Amain.example.com

Bbackup.example.com

Cprimary.example.com

Dsecondary.example.com

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping main and backup servers.

Not adding the backup keyword to the backup server.

The first server is the main server, and the second is the backup server marked with the backup keyword.

5fill in blank

hard

Fill all three blanks to create a dictionary of servers with their status, marking the backup server correctly.

Nginx

servers = {
    '[1]': 'active',
    '[2]': 'backup',
    '[3]': 'active'
}

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

Aserver1.example.com

Bserver2.example.com

Cserver3.example.com

Dserver4.example.com

Attempts:

3 left

💡 Hint

Common Mistakes

Marking the wrong server as backup.

Using the same server twice.

The dictionary lists servers with their status. The second server is marked as backup.