Question 145 of 505

Application Deployment and Security →hardMultiple ChoiceObjective-mapped

200-901 Application Deployment and Security Practice Question

This 200-901 practice question tests your understanding of application deployment and security. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.

Exhibit

{
  "network": {"id": "N_12345", "name": "Office"},
  "vlan": {"id": "1", "subnet": "192.168.1.0/24"},
  "groupPolicy": {"name": "Block Social Media", "contentFiltering": {"blockedUrlPatterns": {"id": "456"}}}
}

Refer to the exhibit. A Meraki network has a group policy 'Block Social Media' that references a content filtering rule. The policy is applied to VLAN 1. Users in that VLAN cannot access instagram.com but can access facebook.com. What is the most likely reason?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Question 1hardmultiple choice

Open the full VLAN trunking answer →

Exhibit

{
  "network": {"id": "N_12345", "name": "Office"},
  "vlan": {"id": "1", "subnet": "192.168.1.0/24"},
  "groupPolicy": {"name": "Block Social Media", "contentFiltering": {"blockedUrlPatterns": {"id": "456"}}}
}

A
The content filtering rule blocks only a specific set of URLs, but not all social media sites.
Why wrong: This statement is true, but the more precise cause is that the blocked list does not include facebook.com.
B
The group policy is not applied to the VLAN.
Why wrong: The exhibit shows the policy is applied to VLAN 1.
C
The blocked URL patterns list does not include all social media sites.
The blocked list likely contains patterns for instagram but not facebook, so users can access facebook.
D
The content filtering is not enabled on the MX appliance.
Why wrong: The group policy includes content filtering, so it is enabled.

Full breakdown with real-world context →

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

✓

The blocked URL patterns list does not include all social media sites.

Option C is correct because the group policy 'Block Social Media' references a content filtering rule that likely uses a predefined or custom URL category list. If the rule blocks only specific URL patterns (e.g., 'instagram.com') but does not include all social media sites (e.g., 'facebook.com'), then users can still access unblocked sites. Meraki content filtering operates on URL category matching or explicit URL pattern lists; if the list is incomplete, the policy will not block all intended sites.

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.

✗
The content filtering rule blocks only a specific set of URLs, but not all social media sites.
Why it's wrong here
This statement is true, but the more precise cause is that the blocked list does not include facebook.com.
✗
The group policy is not applied to the VLAN.
Why it's wrong here
The exhibit shows the policy is applied to VLAN 1.
✓
The blocked URL patterns list does not include all social media sites.
Why this is correct
The blocked list likely contains patterns for instagram but not facebook, so users can access facebook.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The content filtering is not enabled on the MX appliance.
Why it's wrong here
The group policy includes content filtering, so it is enabled.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Cisco often tests the distinction between a policy being applied (which is true here) and the rule's scope being incomplete, tempting candidates to blame the policy application or appliance configuration rather than the rule's content.

Trap categories for this question

Command / output trap
The exhibit shows the policy is applied to VLAN 1.

Detailed technical explanation

How to think about this question

Meraki MX appliances use Layer 7 content filtering based on URL categories (e.g., 'Social Networking') or custom URL patterns. When a group policy references a content filtering rule, the rule's action (allow or block) is evaluated against the URL requested. If the rule uses a custom URL list that only includes 'instagram.com' but not 'facebook.com', only the listed domains are blocked. In real-world deployments, administrators often mistakenly assume a single category or partial list covers all social media, leading to inconsistent blocking.

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 help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.

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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FAQ

Questions learners often ask

What does this 200-901 question test?

Application Deployment and Security — This question tests Application Deployment and Security — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The blocked URL patterns list does not include all social media sites. — Option C is correct because the group policy 'Block Social Media' references a content filtering rule that likely uses a predefined or custom URL category list. If the rule blocks only specific URL patterns (e.g., 'instagram.com') but does not include all social media sites (e.g., 'facebook.com'), then users can still access unblocked sites. Meraki content filtering operates on URL category matching or explicit URL pattern lists; if the list is incomplete, the policy will not block all intended sites.

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.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 24, 2026

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