- A
HTTP probe
HTTP probe analyzes HTTP traffic to identify device type.
- B
DNS probe
Why wrong: DNS probe is not a standard profiling probe in ISE.
- C
DHCP probe
DHCP probe analyzes DHCP packets for device fingerprinting.
- D
SNMP probe
SNMP probe queries devices via SNMP for information.
- E
RADIUS probe
Why wrong: RADIUS is used for authentication, not profiling.
Question 811 of 988
350-701 Endpoint Security and Identity Practice Question
This 350-701 practice question tests your understanding of endpoint security and identity. 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.
Cisco ISE can profile endpoints using various probes. Which three probes are used for device profiling? (Choose three.)
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
✓
HTTP probe
The HTTP probe (A) is correct because Cisco ISE uses it to profile endpoints by inspecting HTTP user-agent strings and other HTTP header fields, which reveal the operating system or browser type. This passive fingerprinting helps classify devices like smartphones, tablets, or PCs without requiring credentials.
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.
- ✓
HTTP probe
Why this is correct
HTTP probe analyzes HTTP traffic to identify device type.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
DNS probe
Why it's wrong here
DNS probe is not a standard profiling probe in ISE.
- ✓
DHCP probe
Why this is correct
DHCP probe analyzes DHCP packets for device fingerprinting.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
SNMP probe
Why this is correct
SNMP probe queries devices via SNMP for information.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
RADIUS probe
Why it's wrong here
RADIUS is used for authentication, not profiling.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between authentication/authorization protocols (RADIUS) and profiling probes, leading candidates to mistakenly select RADIUS because it is commonly associated with endpoint identity in ISE.
Detailed technical explanation
How to think about this question
Cisco ISE profiling probes include DHCP (to capture Option 55 parameter request list and vendor class identifier), SNMP (to query MIB objects like sysDescr and sysObjectID from network devices), and HTTP (to parse user-agent strings). These probes work together in the profiling policy engine to build a fingerprint, and the order of probe evaluation can affect accuracy—for example, a device that does not generate HTTP traffic may rely solely on DHCP and SNMP data.
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 junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 350-701 question test?
Endpoint Security and Identity — This question tests Endpoint Security and Identity — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: HTTP probe — The HTTP probe (A) is correct because Cisco ISE uses it to profile endpoints by inspecting HTTP user-agent strings and other HTTP header fields, which reveal the operating system or browser type. This passive fingerprinting helps classify devices like smartphones, tablets, or PCs without requiring credentials.
What should I do if I get this 350-701 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 350-701 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 350-701 exam.
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