The correct answer is to configure both switchport port-security maximum 1 and switchport port-security mac-address sticky. The maximum 1 command restricts the port to learning only a single secure MAC address, while the sticky command dynamically captures the MAC address of the first connected device and saves it to the running configuration, effectively locking the port to that specific host. Together, these two features ensure that if any other device connects, the port will trigger a security violation and, by default, enter an error-disabled state. On the Cisco SCOR 350-701 exam, this scenario tests your understanding of port security fundamentals and the interaction between sticky learning and address limits—a common trap is forgetting that sticky alone does not enforce a count, or that maximum alone does not lock the learned address. Remember the mnemonic: “Sticky locks, maximum clocks”—sticky locks the first MAC, and maximum 1 clocks the count to one.
350-701 Security Concepts Practice Question
This 350-701 practice question tests your understanding of security concepts. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 network administrator is configuring port security on a Cisco switch port connected to a single endpoint. The requirement is that only the first device that connects to the port is allowed, and any subsequent device that attempts to connect must trigger an error-disabled state. Which two features must be configured to meet this requirement?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "first"
Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
switchport port-security mac-address sticky
Option B is correct because the 'switchport port-security mac-address sticky' command dynamically learns the MAC address of the first connected device and saves it as a sticky secure MAC address in the running configuration. Option E is correct because setting the maximum number of secure MAC addresses to 1 ensures that only the first device's MAC address is allowed; any additional device will trigger a security violation. Together, these two features enforce that only the first device can connect, and subsequent devices cause the port to enter an error-disabled state when combined with the shutdown violation mode.
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.
✗
switchport port-security aging type inactivity
Why it's wrong here
Aging is not required for this requirement.
✓
switchport port-security mac-address sticky
Why this is correct
Sticky learning dynamically learns and remembers the first MAC.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that the 'violation shutdown' command must be explicitly configured, when in fact it is the default violation mode for port security, so candidates incorrectly include it as a required feature instead of recognizing that the maximum and sticky commands are the two necessary configurations.
Detailed technical explanation
How to think about this question
Port security uses secure MAC addresses stored in the CAM table; sticky learning converts dynamically learned MACs into secure MACs that persist across reboots if saved to startup-config. The maximum command sets the limit of allowed secure MACs, and when exceeded, the configured violation mode (default shutdown) triggers an errdisable state, which can be recovered manually or via errdisable recovery. In real-world scenarios, this is commonly used on access ports in high-security environments to prevent rogue device connections, but note that sticky MACs are stored in the running config and can be spoofed if an attacker knows the allowed MAC.
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.
Security Concepts — This question tests Security Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: switchport port-security mac-address sticky — Option B is correct because the 'switchport port-security mac-address sticky' command dynamically learns the MAC address of the first connected device and saves it as a sticky secure MAC address in the running configuration. Option E is correct because setting the maximum number of secure MAC addresses to 1 ensures that only the first device's MAC address is allowed; any additional device will trigger a security violation. Together, these two features enforce that only the first device can connect, and subsequent devices cause the port to enter an error-disabled state when combined with the shutdown violation mode.
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: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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