MTCNA Exam Dumps - MikroTik MTCNA - MikroTik Training Questions and Answers

To bridge two networks over a wireless link (i.e., perform Layer 2 bridging), MikroTik offers several wireless modes that support bridging:

WDS (Wireless Distribution System) is MikroTik’s mechanism to forward Layer 2 frames over wireless

pseudobridge and pseudobridge-clone attempt to mimic Layer 2 bridging, with some limitations

Option analysis:

A.✔Correct–Using AP mode on both ends and enabling WDS allows full Layer 2 bridging

B.✔Correct–pseudobridge-clone allows limited bridging by spoofing the MAC address of the connected host

C.✔Correct–station-pseudobridge enables partial bridging (one client per MAC)

D.✘Incorrect–station mode alone does not support Layer 2 bridging; it performs routing/NAT instead

Extract from MTCNA Course Material – Bridging and Wireless Section:

"To bridge over wireless, you can use WDS or station-pseudobridge(-clone). WDS provides true Layer 2 bridging, while pseudobridge methods simulate it for single hosts."

Extract from René Meneses Study Guide – Wireless Bridging:

“WDS is most reliable for bridging. pseudobridge and pseudobridge-clone work with one client and should be used cautiously.”

Extract from Terry Combs Notes – Wireless Bridging:

“station mode alone is not sufficient for bridging. Use WDS or pseudobridge options.”

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The “Area” parameter is a user-defined tag in the wireless interface configuration that works with the Access List in MikroTik RouterOS. It allows grouping of clients or APs for filtering or configuration logic.

When an Access List rule includes an area name, it will only apply to devices matching that area.

Option breakdown:

A. Connect List → Incorrect. Area is not used here.

B. Access List →✔Correct. “Area” is matched directly in Access List rules.

C. None of these → Incorrect.

D. Security Profile → Incorrect. Security Profiles control authentication/encryption, not area filtering.

Extract from Official MTCNA Course Material – Wireless Access List:

"The Area field allows you to group wireless interfaces and filter clients based on Access List rules that include this tag."

Extract from Terry Combs Notes – Wireless Configuration:

“Area is a label that can be referenced in Access List rules to apply rules selectively.”

Extract from MikroTik Wiki – Wireless Access List Section:

"Area is used in Access List to assign rules based on interface groups or locations."

Bridging loops occur when there are multiple active paths between switches or bridge interfaces, causing broadcast storms or MAC table instability. MikroTik RouterOS supports both STP (Spanning Tree Protocol) and RSTP (Rapid Spanning Tree Protocol) to detect and block redundant paths.

A.✔RSTP – Faster and preferred protocol to prevent loops.

B.✔STP – The original protocol, slower convergence but still effective.

C.✘Connection tracking – Not related to Layer 2 loop prevention.

D.✘UDP filter – Filters specific traffic types, doesn’t handle loops.

E.✘ICMP filter – Not relevant to Layer 2 loop protection.

Extract from Official MTCNA Course Material – Bridging and STP:

“STP or RSTP must be enabled to prevent bridging loops. RSTP is the recommended version due to faster convergence.”

Extract from René Meneses MTCNA Study Guide – Bridging:

“Always enable STP or RSTP when using bridges with multiple paths to prevent Layer 2 loops.”

Extract from MikroTik Wiki – STP / RSTP:

“STP and RSTP are loop prevention mechanisms for bridges. They dynamically block redundant links.”

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