200-901 Network Fundamentals Practice Question
A network engineer configures an HTTP/2 server. Which feature of HTTP/2 reduces overhead by compressing headers using HPACK?
⚠ Common exam trap
Cisco often tests the distinction between features that improve performance (multiplexing, server push) versus the specific mechanism for header compression (HPACK), leading candidates to confuse multiplexing or binary framing with compression.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
HPACK
HPACK is the header compression mechanism specified for HTTP/2 (RFC 7541). It reduces overhead by encoding HTTP headers into a compact binary format using static and dynamic tables, eliminating redundant header data across requests. This directly addresses the question's focus on reducing overhead through header compression.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Server push
Why it's wrong here
Server push sends resources proactively, not header compression.
- ✗
Binary framing layer
Why it's wrong here
Binary framing is the format, but HPACK does the compression.
- ✓
HPACK
Why this is correct
HPACK is specifically designed for HTTP/2 header compression.
- ✗
Multiplexed streams
Why it's wrong here
Multiplexing allows multiple streams over a single connection, but does not compress headers.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-901 exam.