The answer is to add the domain to the Block List under the policy's Destination Lists. This is correct because Cisco Umbrella’s DNS-layer security evaluates the Block List in real time for every DNS query, so adding malware.example.com there immediately prevents any resolution to that domain without waiting for automated threat intelligence feeds or global block updates. On the Cisco SCOR / CCNP Security Core 350-701 exam, this tests your understanding of Umbrella’s policy components and the distinction between local block lists, global block lists, and category-based filtering. A common trap is confusing the Block List with the Allow List or assuming you must create a new policy; in reality, the Block List within an existing policy provides the fastest, most targeted enforcement. Memory tip: think “BL” for “Block List” and “BL” for “Bad Link”—add it there first for immediate action.
350-701 Cloud Security Practice Question
This 350-701 practice question tests your understanding of cloud security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 organization uses Cisco Umbrella for DNS-layer security. They want to block access to a newly discovered malicious domain (malware.example.com) immediately. Which action should the administrator take in the Umbrella dashboard?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "immediately / without restart"
Why it matters: Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add the domain to the 'Block List' under the policy's 'Destination Lists'.
Option C is correct because in Cisco Umbrella, the most immediate way to block a specific malicious domain is to add it to the 'Block List' under the policy's 'Destination Lists'. This list is evaluated in real-time for DNS queries, allowing the administrator to enforce the block without waiting for threat intelligence updates or affecting other policies.
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.
✗
Add the domain to the 'Global Block List' under 'Managed Networks'.
Why it's wrong here
Global block list is for permanent blocks across all policies; adding to policy block list is immediate for that policy.
✗
Add the domain to the 'Temporary Block List' under 'Security Settings'.
Why it's wrong here
Temporary block list is typically for IP addresses, not domains.
✓
Add the domain to the 'Block List' under the policy's 'Destination Lists'.
Why this is correct
Policy block list immediately blocks DNS queries to the domain for users under that policy.
Clue confirmation
The clue word "immediately / without restart" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Add the domain to the 'IP Layer Enforcement' list.
Why it's wrong here
IP Layer Enforcement blocks traffic based on IP addresses, not domain names.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the 'Global Block List' (which applies to IP addresses at the network layer) with the policy-specific 'Block List' (which applies to domains at the DNS layer), leading them to select Option A instead of C.
Detailed technical explanation
How to think about this question
Cisco Umbrella's DNS-layer security intercepts DNS queries and compares them against policy-defined destination lists, including the 'Block List'. When a domain is added to this list, Umbrella returns a sinkhole IP (e.g., 0.0.0.0 or a custom block page IP) for any query matching that domain, effectively preventing resolution. This action is immediate and does not rely on the global threat intelligence feed, making it ideal for emergency blocks of newly discovered malicious domains.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
Cloud Security — This question tests Cloud Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add the domain to the 'Block List' under the policy's 'Destination Lists'. — Option C is correct because in Cisco Umbrella, the most immediate way to block a specific malicious domain is to add it to the 'Block List' under the policy's 'Destination Lists'. This list is evaluated in real-time for DNS queries, allowing the administrator to enforce the block without waiting for threat intelligence updates or affecting other policies.
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.
Are there clue words in this question I should notice?
Yes — watch for: "immediately / without restart". Time or reboot constraint — the correct answer must take effect right away without requiring a reboot or reload.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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