- A
Binary framing layer
Why wrong: Binary framing is part of the protocol, but multiplexing is the feature that allows concurrent streams.
- B
Multiplexing
Correct. Multiplexing allows multiple streams over one TCP connection.
- C
Server push
Why wrong: Server push proactively sends resources but is not about multiplexing.
- D
Header compression (HPACK)
Why wrong: HPACK reduces header size but does not enable multiple streams.
Question 361 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.
An HTTP/2 connection uses multiple concurrent streams over a single TCP connection. Which feature of HTTP/2 enables this?
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
✓
Multiplexing
Multiplexing is the HTTP/2 feature that allows multiple concurrent streams to share a single TCP connection. This eliminates head-of-line blocking at the application layer by enabling the interleaving of frames from different streams, so a slow response on one stream does not block others.
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.
- ✗
Binary framing layer
Why it's wrong here
Binary framing is part of the protocol, but multiplexing is the feature that allows concurrent streams.
- ✓
Multiplexing
Why this is correct
Correct. Multiplexing allows multiple streams over one TCP connection.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Server push
Why it's wrong here
Server push proactively sends resources but is not about multiplexing.
- ✗
Header compression (HPACK)
Why it's wrong here
HPACK reduces header size but does not enable multiple streams.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between the enabling mechanism (binary framing) and the resulting capability (multiplexing), so candidates mistakenly choose 'binary framing layer' because it sounds technical, but it is the foundation, not the feature that directly enables concurrency.
Detailed technical explanation
How to think about this question
Under the hood, HTTP/2 multiplexing works by assigning each stream a unique identifier (31-bit integer) within the same TCP connection. Frames from different streams are interleaved at the byte level, and the receiver reassembles them based on the stream ID. In real-world scenarios, this significantly improves page load times by allowing multiple resource requests (e.g., CSS, JS, images) to be sent simultaneously without opening multiple TCP connections.
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.
Visual reference
Quick reference
OSI Model Reference
| Layer | Name | PDU | Key Protocols / Devices |
|---|---|---|---|
| 7 | Application | Data | HTTP, HTTPS, DNS, SMTP, FTP, SSH |
| 6 | Presentation | Data | TLS / SSL, JPEG, ASCII encoding |
| 5 | Session | Data | NetBIOS, RPC, SIP |
| 4 | Transport | Segment / Datagram | TCP, UDP |
| 3 | Network | Packet | IP, ICMP, OSPF — Routers |
| 2 | Data Link | Frame | Ethernet, Wi-Fi, PPP — Switches, Bridges |
| 1 | Physical | Bits | Cables, NICs, Hubs, Repeaters |
What to study next
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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: Multiplexing — Multiplexing is the HTTP/2 feature that allows multiple concurrent streams to share a single TCP connection. This eliminates head-of-line blocking at the application layer by enabling the interleaving of frames from different streams, so a slow response on one stream does not block others.
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.
About these practice questions
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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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