- A
Cisco Umbrella SIG
Umbrella SIG provides DNS-layer security as a cloud service.
- B
Cisco Firepower NGFW
Why wrong: Firepower is a next-generation firewall, not a cloud DNS security solution.
- C
Cisco WSA
Why wrong: WSA is a web security appliance, not a cloud DNS service.
- D
Cisco ESA
Why wrong: ESA is an email security appliance, not a cloud DNS security solution.
Question 462 of 988
350-701 Content Security Practice Question
This 350-701 practice question tests your understanding of content security. 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 Cisco cloud-based security solution provides DNS-layer security to block requests to malicious domains?
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
✓
Cisco Umbrella SIG
Cisco Umbrella SIG (Security Internet Gateway) is a cloud-delivered security solution that provides DNS-layer security by intercepting and analyzing DNS queries. When a user attempts to resolve a domain, Umbrella checks the request against its threat intelligence database and blocks the resolution if the domain is known to be malicious, preventing the connection before it is established.
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.
- ✓
Cisco Umbrella SIG
Why this is correct
Umbrella SIG provides DNS-layer security as a cloud service.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Cisco Firepower NGFW
- ✗
Cisco WSA
Why it's wrong here
WSA is a web security appliance, not a cloud DNS service.
- ✗
Cisco ESA
Why it's wrong here
ESA is an email security appliance, not a cloud DNS security solution.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between DNS-layer security (Umbrella) and proxy-based security (WSA), so the trap here is that candidates may confuse Cisco WSA's URL filtering with Umbrella's DNS-layer blocking, not realizing that WSA operates at the application layer after the DNS resolution has already occurred.
Detailed technical explanation
How to think about this question
Cisco Umbrella's DNS-layer security works by redirecting all DNS queries to Umbrella's global resolvers, which evaluate each query against real-time threat intelligence from Cisco Talos and other sources. If a domain is categorized as malicious, Umbrella returns a sinkhole IP address (e.g., 146.112.61.104) instead of the legitimate IP, effectively blocking the connection at the earliest possible stage. This approach is effective against malware that uses domain generation algorithms (DGAs) because it blocks the DNS resolution before any HTTP request is made, even if the traffic is encrypted.
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 350-701 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
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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Content Security — study guide chapter
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FAQ
Questions learners often ask
What does this 350-701 question test?
Content Security — This question tests Content Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Cisco Umbrella SIG — Cisco Umbrella SIG (Security Internet Gateway) is a cloud-delivered security solution that provides DNS-layer security by intercepting and analyzing DNS queries. When a user attempts to resolve a domain, Umbrella checks the request against its threat intelligence database and blocks the resolution if the domain is known to be malicious, preventing the connection before it is established.
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.
About these practice questions
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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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