Rest API - Caching Strategies
Which of the following is the correct syntax to send an
If-Modified-Since header in an HTTP request?Which of the following is the correct syntax to send an If-Modified-Since header in an HTTP request?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall HTTP header date format
HTTP headers use the RFC 1123 date format likeSun, 01 Jan 2023 12:00:00 GMTfor date/time values.Step 2: Match options to correct format
If-Modified-Since: Sun, 01 Jan 2023 12:00:00 GMT matches the correct header syntax and date format. Other options use invalid syntax or date formats.Final Answer:
If-Modified-Since: Sun, 01 Jan 2023 12:00:00 GMT -> Option DQuick Check:
If-Modified-Since uses RFC 1123 date format [OK]
Quick Trick: Use RFC 1123 date format for If-Modified-Since header [OK]
Common Mistakes:
MISTAKES- Using ISO 8601 instead of RFC 1123 format
- Using '=' instead of ':' in header
- Using arrow '->' instead of colon
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