The main operational benefit of sticky MAC learning is that it dynamically learns a secure MAC address and can preserve it if the configuration is saved. This combines the convenience of automatic discovery with the permanence of a manually configured secure address, meaning the switch records the first MAC it sees on the port as a secure entry without requiring an administrator to type it in. On the CCNA 200-301 v2 exam, this concept tests your understanding of how port security balances ease of deployment with access control—a common trap is assuming sticky learning alone prevents unauthorized devices, when in fact the maximum secure MAC count still enforces the limit. Remember that sticky entries exist only in the running config until you copy it to startup, so a reload without saving will lose them. For a memory tip, think “sticky saves the first, but save the config to make it stick.”
CCNA Switching and Network Access Practice Question
This 200-301 practice question tests your understanding of switching and network access. 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. A key principle to apply: sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management.. 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 switch port connected to a workstation is configured with sticky MAC learning and a maximum secure MAC count of 1. What is the main operational benefit of sticky learning in this case?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It dynamically learns a secure MAC address and can preserve it if the configuration is saved.
Sticky learning gives the convenience of dynamic discovery while still treating the learned address as a secure port-security entry. In practical terms, the switch can observe the first legitimate MAC address on the port and record it as a secure address without the administrator having to type that address manually. If the running configuration is later saved, that sticky entry can persist after a reload.
This is useful because it balances ease of deployment with access control. The maximum secure MAC count still matters, and port security is still active. Sticky learning does not replace port security; it works within it.
Key principle: Sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
It dynamically learns a secure MAC address and can preserve it if the configuration is saved.
Why this is correct
This is correct because sticky MAC learning records the observed address as a secure port-security entry.
Related concept
Sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management.
✗
It disables the maximum secure MAC limit on the interface.
Why it's wrong here
This is wrong because sticky learning does not remove the configured maximum.
When this WOULD be correct
In a different scenario where the question states that sticky MAC learning is configured without a maximum secure MAC count, option B could be correct if the context implies that the sticky learning process allows for unlimited MAC addresses to be learned, effectively disabling any limit.
✗
It automatically saves the running configuration to the startup configuration after learning the MAC address.
Why it's wrong here
This is wrong because sticky learning does not change the port role.
When this WOULD be correct
In a different scenario where a switch port is configured to allow multiple MAC addresses and the question specifically states that the port can be converted to trunk mode after learning a MAC, then option C could be correct, indicating a feature of dynamic port configuration.
✗
It prevents the port from ever generating a security violation.
Why it's wrong here
This is wrong because violations can still occur if the secure MAC limit is exceeded or the wrong device appears.
When this WOULD be correct
In a different scenario where a switch port is specifically configured to disable all security features, including sticky learning, the option could be correct if the question states that the port is designed to never generate security violations regardless of MAC address changes.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The 200-301 exam frequently reuses these exact scenarios with slightly different constraints.
✓It dynamically learns a secure MAC address and can preserve it if the configuration is saved.Correct answer▾
Why this is correct
This is correct because sticky MAC learning records the observed address as a secure port-security entry.
✗It disables the maximum secure MAC limit on the interface.Wrong answer — click to see why▾
Why this is wrong here
Option B is incorrect because sticky MAC learning does not disable the maximum secure MAC limit; it simply allows the switch to learn and retain the MAC address within that limit. The maximum secure MAC count remains enforced regardless of sticky learning.
★ When this WOULD be the correct answer
In a different scenario where the question states that sticky MAC learning is configured without a maximum secure MAC count, option B could be correct if the context implies that the sticky learning process allows for unlimited MAC addresses to be learned, effectively disabling any limit.
Why candidates choose this
Candidates might choose this option due to a misunderstanding of how sticky MAC learning interacts with security features, mistakenly believing that sticky learning inherently removes restrictions on MAC address limits.
✗It automatically saves the running configuration to the startup configuration after learning the MAC address.Wrong answer — click to see why▾
Why this is wrong here
Sticky learning does not automatically save the running configuration; it only adds the learned MAC to the running configuration, which must be explicitly saved to the startup configuration to persist across reboots.
★ When this WOULD be the correct answer
In a different scenario where a switch port is configured to allow multiple MAC addresses and the question specifically states that the port can be converted to trunk mode after learning a MAC, then option C could be correct, indicating a feature of dynamic port configuration.
Why candidates choose this
Candidates may find this option tempting because they might confuse sticky MAC learning with dynamic trunking protocols, leading them to believe that learning a MAC address could trigger a change in the port type.
✗It prevents the port from ever generating a security violation.Wrong answer — click to see why▾
Why this is wrong here
This option is incorrect because sticky MAC learning does not prevent security violations; it only allows the learned MAC address to be retained across reboots if saved. A security violation can still occur if an unauthorized MAC address is detected on the port.
★ When this WOULD be the correct answer
In a different scenario where a switch port is specifically configured to disable all security features, including sticky learning, the option could be correct if the question states that the port is designed to never generate security violations regardless of MAC address changes.
Why candidates choose this
Candidates may be drawn to this option because they associate sticky learning with enhanced security features, mistakenly believing that it inherently prevents any violations on the port.
Analysis generated from the official 200-301blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
Be careful not to confuse sticky learning with allowing multiple MAC addresses or automatic removal of unauthorized addresses.
Detailed technical explanation
How to think about this question
Sticky MAC learning is a feature of Cisco switch port security that allows a switch to dynamically learn MAC addresses on a port and then convert those learned addresses into secure MAC addresses. This means the switch automatically records the MAC address of the first device connected to the port and treats it as a secure entry, preventing unauthorized devices from connecting without manual configuration. The learned MAC addresses are stored in the running configuration and can be saved to the startup configuration, ensuring persistence across reboots.
The key operational rule with sticky MAC learning is that it combines the flexibility of dynamic learning with the security of static port security entries. When a port is configured with sticky MAC learning and a maximum secure MAC count (in this case, 1), the switch will learn the first MAC address it sees and lock it as the only allowed address. If a different device attempts to connect, the port security violation mechanism triggers, enforcing access control. Sticky learning does not disable or alter the maximum secure MAC count; it works within these limits to enhance security management.
A common exam trap is to assume sticky MAC learning disables port security limits or automatically changes port roles, such as converting access ports to trunks. In reality, sticky learning only affects how MAC addresses are learned and stored. It does not disable the maximum secure MAC count or change the port type. Understanding this distinction is critical for correctly answering questions about port security behavior and avoiding confusion about how sticky MAC addresses interact with other port security features.
KKey Concepts to Remember
Sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management.
A switch port configured with sticky MAC learning and a maximum secure MAC count enforces that only the learned MAC addresses can access the port.
Sticky MAC addresses are stored in the running configuration and can be saved to the startup configuration to persist after a reboot.
Port security violation mechanisms still apply when the maximum secure MAC count is exceeded or an unauthorized MAC address is detected on a sticky port.
Sticky MAC learning does not disable the maximum secure MAC count configured on the interface; it works within the port security limits.
Sticky MAC learning does not change the port type or role, such as converting an access port into a trunk port.
The main benefit of sticky MAC learning is balancing ease of deployment with strong access control by automating secure MAC address configuration.
Misunderstanding sticky MAC learning can lead to exam mistakes, such as assuming it disables security limits or alters port behavior.
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
Sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-301 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. Sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 200-301 question in full detail.
Review sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management., then practise related 200-301 questions on the same topic to reinforce the concept.
Switching and Network Access — This question tests Switching and Network Access — Sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management..
What is the correct answer to this question?
The correct answer is: It dynamically learns a secure MAC address and can preserve it if the configuration is saved. — Sticky learning gives the convenience of dynamic discovery while still treating the learned address as a secure port-security entry. In practical terms, the switch can observe the first legitimate MAC address on the port and record it as a secure address without the administrator having to type that address manually. If the running configuration is later saved, that sticky entry can persist after a reload.
This is useful because it balances ease of deployment with access control. The maximum secure MAC count still matters, and port security is still active. Sticky learning does not replace port security; it works within it.
What should I do if I get this 200-301 question wrong?
Review sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management., then practise related 200-301 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Sticky MAC learning allows a switch to dynamically learn and save MAC addresses as secure entries on a port, simplifying port security management.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This 200-301 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 200-301 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.