MikroTik MTCNA Dumps Questions Answers

The redirect action is only valid in the dstnat chain. It is used to redirect traffic to a service running on the router itself (e.g., redirecting HTTP to a local proxy server).

A.✘srcnat – Not compatible with redirect

B.✘forward – Redirect doesn’t apply in this chain

C.✔dstnat – This is the correct and only supported chain for action=redirect

Extract from Official MTCNA Course Material – NAT Actions:

“The redirect action is used within the dstnat chain to forward packets to the router’s local services.”

Extract from MikroTik Wiki – NAT Rule Actions:

“Redirect is used in dstnat chain and changes destination address to a local router IP and port.”

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When using a hub, all connected devices share the total bandwidth. Since it’s a 10 Mbps half-duplex hub, all 10 users share the same collision domain and 10 Mbps. However, when calculating potential access to the server from any single host, each host can use the full 10 Mbps — as long as no other users are transmitting simultaneously.

More importantly, the connection to the server is also 10 Mbps half-duplex, so regardless of the internal collisions, each client could use the full 10 Mbps to the server — just not concurrently with others.

Cisco CCNA Curriculum – Hubs and Bandwidth Sharing:

“In a hub, all ports share bandwidth. However, each host is capable of utilizing the full bandwidth if no contention exists.”

René Meneses MTCNA Study Guide – Hub Limitations:

“A hub provides shared bandwidth, but each device can use the full rate momentarily, assuming no collisions.”

Hence, the correct answer is based on potential — not divided bandwidth.

Final Answer: DQUESTION NO: 146 [Cisco IOS – Configuration Management]

What command is used to create a backup configuration?

A. copy running backup

B. copy running-config startup-config

C. config mem

D. wr mem

Answer: B

The command copy running-config startup-config saves the current active configuration in RAM (running-config) to NVRAM (startup-config). This ensures that the configuration persists after a reboot.

Cisco IOS Configuration Guide – Saving Configs:

“To save the active configuration, use: copy running-config startup-config.”

René Meneses MTCNA Study Guide – IOS Management:

“Saving configuration ensures the device boots with the same settings. Use copy running-config startup-config or its shortcut: wr.”

Breakdown:

A: Invalid syntax — no such keyword as “backup”

C: config mem is outdated and not used in modern IOS

D: wr mem is a shortcut for “write memory” — still valid but less commonly used

Final Answer: BQUESTION NO: 147 [Cisco IOS – Access Control Lists]

What are the two main types of access control lists (ACLs)?

Standard

IEEE

Extended

Specialized

A. 1 and 3

B. 2 and 4

C. 3 and 4

D. 1 and 2

Answer: A

Cisco IOS supports two primary types of ACLs:

Standard ACLs: Filter traffic based only on source IP address

Extended ACLs: Filter traffic based on source, destination IP, protocol type, and port numbers

Cisco IOS Security Guide – ACL Fundamentals:

“Standard ACLs use only source IP for filtering. Extended ACLs can match based on source, destination, ports, and protocols.”

René Meneses MTCNA Study Guide – ACL Types:

“Two types of IP ACLs: standard and extended. IEEE or specialized ACLs do not exist in Cisco terminology.”

Other options:

IEEE: Refers to Ethernet or wireless standards, not ACLs

Specialized: Not a defined ACL type

The “Backup” function in WinBox (located under Files → Backup) creates a binary backup file (.backup) of the router’s full configuration, including sensitive data like usernames, passwords, IPsec keys, wireless keys, etc.

A.✔Correct – By default, the backup file name includes the router identity and timestamp.

B.✘Incorrect – The file is saved on the router’s internal storage (Files menu), not on the user’s computer. You must download it manually to store it locally.

C.✔Correct – Unlike an “Export” file, a .backup file includes all configuration, including encrypted credentials.

D.✔Correct – You can specify a name and optionally a password to encrypt the backup.

Extract from MTCNA Course Material – Backup & Restore:

“The backup file includes all settings and can be encrypted with a password. It is saved on the router under the Files menu.”

Extract from René Meneses Study Guide – Backup Options:

“A .backup file contains everything including usernames and secrets. You can assign a filename and encryption password.”

Extract from Terry Combs Notes – Backup and Export:

“Backup saves a full binary copy. Use the download button to copy it to your PC.”

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