[Dec 20, 2025] MTCNA Questions Truly Valid For Your MikroTik Exam!
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NEW QUESTION # 50
If you wanted to delete the configuration stored in NVRAM, what would you type?
- A. erase startup
- B. erase nvram
- C. delete nvram
- D. erase running
Answer: A
Explanation:
In Cisco IOS (used as a common reference in networking), the startup configuration is stored in NVRAM. To delete it and reset the device to factory defaults upon reboot, you use:
Command: erase startup-config or write erase
Networking Fundamentals - Cisco CLI:
"To remove the startup-config file from NVRAM, use erase startup-config. This will delete saved settings and reboot will load default settings." Rene Meneses MTCNA Study Guide - Cisco Integration:
"erase startup-config is used to clear saved configuration. Running-config is stored in RAM, and 'erase running' is invalid." Other options:
* B and C: Not valid Cisco commands
* D: erase running is invalid - running-config must be cleared manually or overwritten
NEW QUESTION # 51
What is a stub network?
- A. A network with more than one exit and entry point.
- B. A network that has only one entry and exit point.
- C. A network with more than one exit point.
- D. A network with only one entry and no exit point.
Answer: B
Explanation:
A stub network is defined as a network segment that is accessible by only one path (single entry/exit point). It does not serve as a transit network for routing between other networks. Traffic entering or leaving the stub network must pass through a single interface.
MTCNA Course Material - Routing Concepts:
"A stub network is one that is connected to the rest of the network by a single router interface. It has only one entry and one exit point." Rene Meneses MTCNA Study Guide - Routing Terms:
"Stub networks do not forward packets for other networks. They are endpoints with one route in and out." Other options:
* A/B: Describe transit networks, not stub
* C: Misleading-stub has both entry and exit, but only through one path
* D:#Correct definition
NEW QUESTION # 52
What is the default TTL (time to live) on a router that an IP packet can experience before it will be discarded?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 53
Which of the following are layers in the TCP/IP model?
Application
Session
Transport
Internet
Data Link
Physical
- A. 3, 4 and 5
- B. 1, 3 and 4
- C. 1 and 2
- D. 2, 3 and 5
Answer: B
Explanation:
The TCP/IP model has four layers:
* Application
* Transport
* Internet
* Network Access (includes Data Link & Physical in OSI terms)
Session is part of the OSI model, not TCP/IP.
MTCNA Course Material - TCP/IP vs OSI Model:
"The TCP/IP model has Application, Transport, Internet, and Network Access layers. Application includes OSI's Session, Presentation, and Application layers." Rene Meneses MTCNA Guide - Model Comparison:
"The TCP/IP model consists of: Application, Transport, Internet, and Network Access (which covers Data Link and Physical). Session layer is part of OSI." So, correct TCP/IP layers from the given list:
* Application (#)
* Transport (#)
* Internet (#)
Session is not part of TCP/IP model.
NEW QUESTION # 54
Action=redirect allows you to make:
- A. Forward DNS to another device IP address
- B. Enable Local Service
- C. Transparent HTTP Proxy
- D. Transparent DNS Cache
Answer: C
Explanation:
In RouterOS, action=redirect is used in NAT rules to redirect traffic destined for specific ports to local services. This is often used for:
* Transparent web proxy (redirect port 80 to a local proxy service)
* Transparent DNS interception (if RouterOS is the DNS server)
In most practical MikroTik use cases, redirect is associated with Transparent HTTP Proxy.
MTCNA Course Material - NAT Configuration:
"action=redirect rewrites the destination address to the router's own IP. It is commonly used to create transparent web proxies." MikroTik Wiki - NAT Redirect:
"Redirect is used for redirecting traffic to local services like web proxy or DNS cache on the router." Breakdown:
* A: Possible, but limited use; DNS cache works better with dst-nat
* B: Incorrect - to forward to another IP, use dst-nat
* C: Misleading - enabling local services doesn't require redirect
* D:#Correct-redirect enables transparent proxy setup
NEW QUESTION # 55
Consider the following network diagram. In R1, you have the following configuration:
/ip route
add dst-address=192.168.1.0/24 gateway=192.168.99.2
/ip firewall nat
add chain=srcnat out-interface=Ether1 action=masquerade
On R2, if you wish to prevent all access to a server located at 192.168.1.10 from LAN1 devices, which of the following rules would be needed?
- A. /ip firewall nat add chain=dstnat src-address=192.168.99.1 dst-address=192.168.1.10 action=drop
- B. /ip firewall filter add chain=forward src-address=192.168.99.1 dst-address=192.168.1.10 action=drop
- C. /ip firewall filter add chain=forward src-address=192.168.0.0/24 dst-address=192.168.1.10 action=drop
- D. /ip firewall filter add chain=input src-address=192.168.99.1 dst-address=192.168.1.10 action=drop
Answer: C
Explanation:
The key requirement is to block traffic from LAN1 to the internal server at 192.168.1.10. Given that R1 uses masquerade (srcnat), all packets arriving at R2 from LAN1 will appear as if they come from R1's IP (192.168.99.1). Therefore, filtering by the original IP (LAN1 clients like 192.168.0.x) won't work unless you stop the traffic before it's NATed.
So the correct way is to drop the packets before they reach the server by identifying the original subnet (LAN1), which is 192.168.0.0/24, in the forward chain.
* A. Wrong: You're filtering based on the post-NAT address (192.168.99.1), not the source LAN subnet.
* B. Correct: Block traffic coming from 192.168.0.0/24 (LAN1) before it hits the NAT rule.#
* C. Wrong chain: input is only for traffic destined to the router itself.
* D. Incorrect chain: dstnat is for translating destination IP, not filtering.
MTCNA Firewall Module - NAT and Forwarding Concepts:
"Filter before NAT to match pre-NAT source addresses. Masquerade masks real source IP." Rene Meneses MTCNA Guide - Practical Firewall Rules:
"When masquerade is applied, forward chain rules using original IP must be placed before the NAT rule." Terry Combs Notes - Firewall Filtering:
"Forward chain handles routed traffic. Use it to block routed traffic between subnets."
NEW QUESTION # 56
Which of the following is the decimal and hexadecimal equivalents of the binary number 10011101?
- A. 155, 0x9B
- B. 185, 0xB9
- C. 157, 0x9D
- D. 159, 0x9F
Answer: C
Explanation:
Binary to Decimal:
10011101
= 1×2^7 + 0×2^6 + 0×2^5 + 1×2^4 + 1×2^3 + 1×2^2 + 0×2^1 + 1×2^0
= 128 + 0 + 0 + 16 + 8 + 4 + 0 + 1
= 157
Decimal to Hexadecimal:
157 ÷ 16 = 9 remainder 13 # 13 = D
So, 157 = 0x9D
MTCNA Course Material - Binary and Hex Conversion:
"Convert binary to decimal by summing powers of 2. Then convert decimal to hexadecimal by dividing by
16."
Rene Meneses MTCNA Study Guide - Number Systems:
"For binary 10011101, the decimal is 157, and hex is 9D."
Only Option B is correct: 157, 0x9D.
NEW QUESTION # 57
You want to transfer existing '/ip firewall filter' configuration from one router to a new system.
Choose the best possible way to do:
- A. Export only '/ip firewall filter'
- B. Create backup, edit backup file and restore on target router
- C. Export global configuration and remove everything apart from '/ip firewall filter'
- D. Create backup only of '/ip firewall filter' rules
Answer: A
Explanation:
The best way to transfer only the firewall filter rules is to use the export command for just that section:
Command:
/ip firewall filter export
This produces a readable script containing only the firewall filter rules. This method is safer than editing binary backups and more efficient than exporting the global configuration and deleting unrelated parts.
Evaluation:
* A.#Correct - clean and script-based approach
* B.#You cannot selectively back up just firewall rules using the backup function (it's system-wide)
* C.#Editing a backup file is not recommended and often not possible (it's binary)
* D.#Too cumbersome and error-prone
MTCNA Course Manual - Configuration Transfer:
"Use export to get script output of specific sections. Backups are for full system restore." Rene Meneses Guide - Migrating Configurations:
"Export is recommended for transferring specific configurations like firewall rules." Terry Combs Notes - Export vs Backup:
"Backups = full system. Use export for clean, readable configuration transfer."
NEW QUESTION # 58
Is ARP used in the IPv6 protocol?
- A. True
- B. False
Answer: B
Explanation:
In IPv6, the Address Resolution Protocol (ARP) is not used. Instead, IPv6 uses the Neighbor Discovery Protocol (NDP), which is part of the ICMPv6 suite. NDP handles address resolution, router discovery, and reachability.
MTCNA Course Material - IPv6 Address Resolution:
"IPv6 replaces ARP with Neighbor Discovery Protocol. NDP uses ICMPv6 to perform tasks like address resolution and router discovery." Rene Meneses MTCNA Study Guide - IPv6 Fundamentals:
"There is no ARP in IPv6. It uses NDP messages for neighbor solicitation and advertisement." Thus, ARP is not used in IPv6.
NEW QUESTION # 59
Mark all packages required for PPPoE server on MikroTik RouterOS
- A. synchronous
- B. system
- C. user-manager
- D. ppp
- E. radius
Answer: D
NEW QUESTION # 60
Mark all features that are compatible with Nstreme
- A. Encryption
- B. WDS between a device in ap-bridge mode with a device in station-wds mode
- C. WDS between a device in station-wds mode and a device in station-wds mode
- D. Bridging a device in station mode with a device in ap-bridge mode
Answer: A,B
Explanation:
Nstreme is a proprietary point-to-point wireless protocol developed by MikroTik to improve performance on long-distance wireless links. It enhances frame aggregation, reduces latency, and replaces standard 802.11 MAC timing behavior with a custom approach. Because of its specific mechanism, it imposes certain compatibility restrictions:
* A. WDS between two station-wds devices is not compatible with Nstreme. This setup doesn't conform to proper AP-client architecture required by Nstreme, which operates in a master/slave role - typically ap-bridge and station.
* B. Encryption (e.g., using WEP or WPA) is supported in Nstreme; however, MikroTik recommends encryption at higher layers like IPsec when performance is critical.
* C. WDS between ap-bridge and station-wds is compatible with Nstreme. This is the standard pairing used when bridging two networks via wireless.
* D. Bridging a station with an ap-bridge device using standard station mode (not station-wds or station- bridge) is not compatible for full Layer 2 bridging. Only station-wds or station-bridge supports bridging with ap-bridge mode.
Extract from Official MTCNA Course Material - Wireless Section:
"Nstreme is supported only between a device in ap-bridge mode and a device in station or station-wds mode.
Both ends must support Nstreme. WDS is supported with station-wds and ap-bridge combinations. Encryption is supported, although optional." Extract from Terry Combs MTCNA Notes - Nstreme Notes:
"Only ap-bridge <-> station-wds (or station-bridge in RouterOS v6+) is valid for bridging over Nstreme.
Encryption like WPA2 is supported but optional."
Extract from Rene Meneses Study Guide - Wireless Features:
"Nstreme does not support station-station WDS. Proper implementation requires ap-bridge on one side and station-wds or station-bridge on the other. Basic encryption (WEP/WPA) is allowed."
NEW QUESTION # 61
Select valid MAC-address:
- A. G2:60:CF:21:99:H0
- B. AEC8:21F1:AA44:54FF:1111:DDAE:0212:1201
- C. 192.168.0.0/16
- D. 00:00:5E:80:EE:B0
Answer: D
Explanation:
A valid MAC address must meet the following criteria:
* Be 6 bytes (48 bits) in length
* Consist of only hexadecimal digits (0-9, A-F)
* Written in six groups separated by colons or hyphens (e.g., 00:1A:2B:3C:4D:5E) MTCNA Course Material - RouterOS MAC Address Basics:
"MAC addresses are 48-bit identifiers written as six pairs of hexadecimal digits. Invalid characters or incorrect length disqualifies an address." Rene Meneses MTCNA Guide - MAC Addressing Section:
"Each MAC is made up of 12 hexadecimal characters (6 octets). If a character like 'G' appears, or if it's longer than 6 bytes, it is invalid." MikroTik Wiki - MAC Addressing Rules:
"Valid MAC format: XX:XX:XX:XX:XX:XX using only 0-9 and A-F. 192.168.0.0/16 is an IP subnet, not a MAC."
* Option A: Invalid - "G" and "H" are not hexadecimal characters
* Option B: Valid - proper format and hex content
* Option C: Invalid - Too long (appears to be IPv6 or malformed)
* Option D: Invalid - this is an IP network (CIDR notation), not a MAC
Only Option B is correct.
NEW QUESTION # 62
Which of the following is used in standard 802.11 wireless networks?
- A. CSMA/CA
- B. CSMA/CD
- C. CDMA
- D. FDD
Answer: A
NEW QUESTION # 63
Action=redirect applies to
- A. Firewall Filter rules
- B. DST-NAT rules
- C. SRC-NAT rules
- D. Route rules
Answer: B
NEW QUESTION # 64
Which are necessary sections in /queue simple to set bandwidth limitation?
- A. target-address, max-limit
- B. max-limit
- C. target-address, dst-address
- D. target-address, dst-address, max-limit
Answer: A
NEW QUESTION # 65
MikroTik RouterOS commands can be run once a day by:
- A. /system scheduler
- B. /system cron
- C. /system watchdog
Answer: A
NEW QUESTION # 66
In order to use dynamic keys in your wireless security profile for an AP, you MUST set up the DHCP server to provide the dynamic keys.
- A. true
- B. false
Answer: B
Explanation:
MikroTik RouterOS supports dynamic key exchange for wireless networks using WPA/WPA2 (with PSK or EAP). These dynamic keys are not provided by the DHCP server but are instead part of the wireless security profile configured under /interface wireless security-profiles.
DHCP only assigns IP addresses and other network configuration parameters - it does not provide encryption keys.
MTCNA Wireless Security Module - WPA/WPA2 Explained:
"Dynamic keys are negotiated during the WPA/WPA2 authentication process, not via DHCP." Rene Meneses Guide - Wireless Authentication:
"Security profiles define pre-shared or dynamic key exchange (WPA-EAP). DHCP is unrelated." Terry Combs Notes - Misconceptions in Wireless Setup:
"DHCP and wireless encryption are separate layers. Keys are not assigned through DHCP."
NEW QUESTION # 67
Which of the following commands will allow you to set your Telnet password on a Cisco router?
- A. line telnet 0 4
- B. line vty 0 4
- C. line aux 0 4
- D. line con 0
Answer: B
NEW QUESTION # 68
What is the default TTL (time to live) on a router that an IP packet can experience before it will be discarded?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
Explanation:
TTL (Time to Live) is a field in the IP header that limits the number of hops a packet can travel. Each router that processes the packet decrements the TTL by 1. When TTL reaches 0, the packet is dropped.
Default TTL values vary by operating system, but in RouterOS and many Linux-based systems, the default TTL is 64.
* A. 60 # Incorrect, used in some systems but not the MikroTik default
* B. 30 # Incorrect
* C. 1 # Incorrect; would allow only one hop
* D. 64 ##Correct
Extract from Official MTCNA Course Material - TTL Field Explanation:
"The default TTL in RouterOS and most Unix-like systems is 64. Each router decrements this by 1 until the packet is discarded." Extract from Rene Meneses Study Guide - IP Protocol Details:
"TTL is initialized to 64 by default in MikroTik RouterOS."
Extract from MikroTik Wiki - IP Protocol Section:
"RouterOS sets default TTL of 64 unless manually configured otherwise."
NEW QUESTION # 69
Using wireless connect-list it's possible to prioritize connection to one Access Point over another Access Point by changing the order of the entries.
- A. True
- B. False
Answer: B
NEW QUESTION # 70
What letters appear next to a route, which is automatically created by RouterOS when user adds a valid address to an active interface?
- A. D
- B. S
- C. C
- D. A
- E. I
Answer: A,C,D
NEW QUESTION # 71
For a Simple Queue to apply a bandwidth restrictions on a bridged interface, following must be done:
- A. Use mangle to mark the connections
- B. Enable 'Use IP Firewall' in bridge settings
- C. Configure an IP address on the bridge interface
- D. Associate the Simple Queue to the bridge interface
Answer: A
NEW QUESTION # 72
Is ARP used in the IPv6 protocol?
- A. True
- B. False
Answer: B
NEW QUESTION # 73
[VLAN Management - VTP and Cisco Switching] Which one of the following is true regarding VLANs?
- A. Two VLANs are configured by default on all Cisco switches.
- B. VTP is used to send VLAN information to switches in a configured VTP domain.
- C. VLANs only work if you have a complete Cisco switched internetwork. No off-brand switches are allowed.
- D. You should not have more than 10 switches in the same VTP domain.
Answer: B
Explanation:
VTP (VLAN Trunking Protocol) is a Cisco proprietary protocol used to manage and propagate VLAN information throughout a switch fabric. It helps maintain consistency across switches by distributing VLAN configurations from a VTP server to client switches in the same domain.
Cisco Switching Guide - VTP Concepts:
"VTP advertises VLAN definitions on a LAN to ensure consistency. It reduces misconfigurations by centralizing VLAN management." Rene Meneses MTCNA Study Guide - VLAN and VTP Notes:
"VTP sends VLAN updates across switches in the same VTP domain. Switches must be compatible and share the domain name." Breakdown:
* A: Only VLAN 1 exists by default
* B: VLANs are not Cisco-exclusive
* C: There is no limit of 10 switches in a VTP domain
* D:#Correct
NEW QUESTION # 74
In MikroTik RouterOS, Layer3 communication between 2 hosts can be achieved by using an address subnet of:
- A. /31
- B. /30
- C. /32
- D. /29
Answer: B,C,D
NEW QUESTION # 75
......
To obtain the MTCNA certification, candidates must pass a comprehensive exam that covers a range of topics related to networking and MikroTik routers. MTCNA exam is available in multiple languages and can be taken online or at a testing center. Once certified, MTCNA holders can demonstrate their expertise in MikroTik networking, which can lead to better job opportunities and higher salaries. Overall, the MTCNA certification is a valuable credential for any IT professional who works with MikroTik routers and wants to improve their skills and knowledge.
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