- A
Disable SSID broadcast
Why wrong: Disabling SSID broadcast hides the network name but does not control which devices can connect.
- B
Enable WPA3 encryption
Why wrong: WPA3 encrypts wireless traffic but does not restrict access based on MAC addresses.
- C
Configure MAC filtering
MAC filtering allows only devices with approved MAC addresses to access the network, meeting the requirement.
- D
Change the default admin password
Why wrong: Changing the default password secures the router but does not control which laptops can connect.
Question 495 of 750
220-1202 Logical Security Concepts Practice Question
This 220-1202 practice question tests your understanding of logical security concepts. 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.
A small business wants to ensure that only authorized employees can access the file server from their laptops. Each laptop has a unique MAC address. Which security measure should be implemented on the network switch?
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
✓
Configure MAC filtering
Option C is correct because MAC filtering on a network switch allows the administrator to create an access control list (ACL) that permits or denies traffic based on the source MAC address. By configuring the switch to allow only the MAC addresses of authorized employee laptops, the small business can restrict file server access to those specific devices, even if they connect via a wired Ethernet port.
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.
- ✗
Disable SSID broadcast
Why it's wrong here
Disabling SSID broadcast hides the network name but does not control which devices can connect.
- ✗
Enable WPA3 encryption
Why it's wrong here
WPA3 encrypts wireless traffic but does not restrict access based on MAC addresses.
- ✓
Configure MAC filtering
Why this is correct
MAC filtering allows only devices with approved MAC addresses to access the network, meeting the requirement.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Change the default admin password
Why it's wrong here
Changing the default password secures the router but does not control which laptops can connect.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse wireless security features (SSID, WPA3) with wired network access controls, or they mistakenly think changing the admin password restricts user access to network resources rather than just protecting the switch itself.
Detailed technical explanation
How to think about this question
MAC filtering on a switch uses port security or MAC ACLs to compare the source MAC address of incoming frames against a configured list. If the MAC is not in the allowed list, the switch can drop the frame or even disable the port (errdisable state). In a real-world scenario, an attacker could spoof an authorized MAC address, so MAC filtering is often combined with 802.1X authentication for stronger device-level security.
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 security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
Visual reference
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
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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Logical Security Concepts — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1202 question test?
Logical Security Concepts — This question tests Logical Security Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure MAC filtering — Option C is correct because MAC filtering on a network switch allows the administrator to create an access control list (ACL) that permits or denies traffic based on the source MAC address. By configuring the switch to allow only the MAC addresses of authorized employee laptops, the small business can restrict file server access to those specific devices, even if they connect via a wired Ethernet port.
What should I do if I get this 220-1202 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
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