Connection pooling to upstream in Nginx - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define an upstream block named 'backend'.

Nginx

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

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

Aupstream_pool

Bproxy

Cbackend

Dserver_pool

Attempts:

3 left

💡 Hint

Common Mistakes

Using generic names like 'proxy' or 'server_pool' that don't match usage.

The upstream block name is 'backend' to match the server group.

2fill in blank

medium

Complete the code to enable keepalive connections with 32 connections.

Nginx

upstream backend {
    server backend1.example.com;
    [1] 32;
}

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

Akeepalive

Bmax_fails

Cfail_timeout

Dmax_conns

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing 'max_fails' or 'fail_timeout' with connection pooling.

The 'keepalive' directive sets the number of idle keepalive connections to upstream servers.

3fill in blank

hard

Fix the error in the proxy_pass directive to use the upstream named 'backend'.

Nginx

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

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

Abackend1.example.com

Bserver_pool

Cupstream

Dbackend

Attempts:

3 left

💡 Hint

Common Mistakes

Using direct server hostname disables connection pooling.

The proxy_pass should point to the upstream group name 'backend' to use connection pooling.

4fill in blank

hard

Fill both blanks to configure proxy settings for connection reuse and timeout.

Nginx

location / {
    proxy_http_version [1];
    proxy_set_header Connection [2];
    proxy_pass http://backend;
}

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

A1.1

Bclose

Ckeep-alive

D1.0

Attempts:

3 left

💡 Hint

Common Mistakes

Using HTTP/1.0 or 'close' disables connection pooling.

HTTP version 1.1 and 'keep-alive' header enable connection reuse with upstream servers.

5fill in blank

hard

Fill all three blanks to create an upstream with two servers and enable keepalive connections.

Nginx

upstream backend {
    server [1];
    server [2];
    [3] 16;
}

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

Abackend1.example.com

Bbackend2.example.com

Ckeepalive

Dmax_fails

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'max_fails' instead of 'keepalive' for connection pooling.

Two servers are listed and 'keepalive' is set to 16 to enable connection pooling.