Question 687 of 1,420
mediumMultiple SelectObjective-mapped
350-401 Practice Question: Which two statements about classification and…
Which two statements about classification and marking in QoS are true? (Choose two.)
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
✓
Classification can be based on IP precedence, DSCP, or CoS values.
Classification can be based on various Layer 2 and Layer 3 fields such as IP precedence, DSCP, and CoS values. The 'match ip dscp' command is used in class maps to match packets based on DSCP values. Marking is performed using the 'set' command in a policy-map class configuration, but the statement in B is considered too absolute because marking can also be done using other methods like 'police' for marking. Therefore, options A and E are correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Classification can be based on IP precedence, DSCP, or CoS values.
Why this is correct
Correct. Classification can use IP precedence, DSCP, or CoS values.
- ✗
Marking is performed using the 'set' command in a policy-map class configuration.
Why it's wrong here
Incorrect. While the 'set' command is commonly used for marking, it is not the only method; marking can also be performed via 'police' or other commands.
- ✗
Layer 2 CoS marking uses the first 6 bits of the 802.1Q tag.
Why it's wrong here
Incorrect. Layer 2 CoS marking uses the first 3 bits of the 802.1Q tag, not 6 bits.
- ✗
DSCP uses the first 3 bits of the ToS byte and is not compatible with IP precedence.
Why it's wrong here
Incorrect. DSCP uses the first 6 bits of the ToS byte and is backward-compatible with IP precedence.
- ✓
The 'match ip dscp' command can be used in a class map to match packets based on DSCP values.
Why this is correct
Correct. The 'match ip dscp' command is valid in a class map for matching DSCP values.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jun 18, 2026
This 350-401 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 350-401 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.