- A
Header compression using HPACK
HPACK reduces header overhead.
- B
Binary framing layer
HTTP/2 uses binary, not text.
- C
Plaintext headers for debugging
Why wrong: HTTP/2 uses compressed binary headers.
- D
Requires multiple TCP connections for parallel requests
Why wrong: HTTP/1.1 often uses multiple connections; HTTP/2 uses one.
- E
Multiplexed streams over a single TCP connection
Multiple streams can be sent concurrently.
Question 803 of 1,000
200-901 Network Fundamentals Practice Question
This 200-901 practice question tests your understanding of network fundamentals. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE of the following are characteristics of HTTP/2 compared to HTTP/1.1?
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
✓
Header compression using HPACK
HPACK compression reduces header overhead by encoding header fields, which is a key improvement over HTTP/1.1's uncompressed headers. This minimizes latency and bandwidth usage, especially for repeated headers like cookies and user-agent.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Header compression using HPACK
Why this is correct
HPACK reduces header overhead.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Binary framing layer
Why this is correct
HTTP/2 uses binary, not text.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Plaintext headers for debugging
Why it's wrong here
HTTP/2 uses compressed binary headers.
- ✗
Requires multiple TCP connections for parallel requests
Why it's wrong here
HTTP/1.1 often uses multiple connections; HTTP/2 uses one.
- ✓
Multiplexed streams over a single TCP connection
Why this is correct
Multiple streams can be sent concurrently.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that HTTP/2 is purely a performance upgrade without structural changes, leading candidates to incorrectly select plaintext headers or assume multiple TCP connections are still required.
Detailed technical explanation
How to think about this question
The binary framing layer breaks messages into frames (e.g., HEADERS, DATA) that are interleaved over a single TCP connection, enabling true multiplexing without head-of-line blocking at the application layer. HPACK uses static and dynamic tables to compress headers, achieving up to 85% reduction in header size. In real-world scenarios, this significantly improves page load times for sites with many resources, like modern web applications.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-901 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this 200-901 question test?
Network Fundamentals — This question tests Network Fundamentals — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Header compression using HPACK — HPACK compression reduces header overhead by encoding header fields, which is a key improvement over HTTP/1.1's uncompressed headers. This minimizes latency and bandwidth usage, especially for repeated headers like cookies and user-agent.
What should I do if I get this 200-901 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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.
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