Response headers (Cache-Control, ETag) in Rest API - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the Cache-Control header to no-cache.

Rest API

response.headers['Cache-Control'] = '[1]'

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

Ano-cache

Bmax-age=3600

Cprivate

Dpublic

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'max-age=3600' which allows caching for 1 hour.

Using 'public' which allows caching by any cache.

The Cache-Control header value no-cache tells browsers not to cache the response.

2fill in blank

medium

Complete the code to set the ETag header with a unique identifier.

Rest API

response.headers['ETag'] = '[1]'

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

A12345

B"12345"

Cetag_value

D'12345'

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the ETag value.

Using single quotes instead of double quotes.

The ETag value must be a quoted string, so "12345" is correct.

3fill in blank

hard

Fix the error in setting Cache-Control to allow caching for 10 minutes.

Rest API

response.headers['Cache-Control'] = '[1]'

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

Amax-age=600

Bmax_age=600

Cmaxage=600

Dmax-age:600

Attempts:

3 left

💡 Hint

Common Mistakes

Using underscore instead of dash.

Using colon instead of equals sign.

The correct syntax for Cache-Control max age is max-age=600 (600 seconds = 10 minutes).

4fill in blank

hard

Fill both blanks to set Cache-Control to private and ETag to "abc123".

Rest API

response.headers['Cache-Control'] = '[1]'
response.headers['ETag'] = '[2]'

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

Aprivate

B"abc123"

Cpublic

Dabc123

Attempts:

3 left

💡 Hint

Common Mistakes

Setting ETag without quotes.

Using 'public' instead of 'private' for Cache-Control.

Cache-Control should be set to private to restrict caching to a single user.
ETag must be a quoted string like "abc123".

5fill in blank

hard

Fill all three blanks to set Cache-Control to no-store, ETag to "xyz789", and add a custom header X-Custom.

Rest API

response.headers['Cache-Control'] = '[1]'
response.headers['ETag'] = '[2]'
response.headers['X-Custom'] = '[3]'

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

Ano-store

B"xyz789"

Ccustom-value

Dno-cache

Attempts:

3 left

💡 Hint

Common Mistakes

Using no-cache instead of no-store.

Not quoting the ETag value.

Leaving custom header value empty.

no-store tells browsers not to store any cache.
ETag must be quoted like "xyz789".
Custom headers can have any string value like custom-value.