To achieve actual throughput of 100 Mbps, you must use 802.11n, which supports higher data rates through technologies such as MIMO (Multiple Input, Multiple Output) and channel bonding. 802.11n provides theoretical speeds up to 150 Mbps per stream and actual throughput above 100 Mbps under good conditions.
802.11a/b/g maxes out around 20–25 Mbps real throughput
802.11n (especially in 5 GHz band via 802.11a/n) is required to exceed 100 Mbps actual throughput
MTCNA Course Material – Wireless Standards and Data Rates:
“802.11n with proper channel width and MIMO can achieve over 100 Mbps of real throughput.”
René Meneses MTCNA Study Guide – Wireless Performance:
“Only 802.11n can reach 100+ Mbps in practical use. Legacy modes (a/b/g) fall short due to modulation limits.”
Breakdown:
A/B/C: Do not support 100 Mbps throughput
D:✔802.11a/n supports 100+ Mbps
E: While also valid, D is more precise for the specific requirement (focused on a/n only)
Final Answer: DQUESTION NO: 156 [Firewall – Mangle Chains]
It is possible to add user-defined chains in ip firewall mangle.
A. True
B. False
Answer: A
RouterOS allows users to define custom chains in the mangle table, giving more flexibility for organizing and managing rules. This is particularly useful in complex routing and QoS configurations.
MikroTik Wiki – Firewall Mangle:
“Custom chains can be created using the add chain=your_chain_name command. Then you can jump to them from built-in chains.”
MTCNA Course Material – Mangle & Packet Flow:
“User-defined chains help separate logic and simplify processing. You can jump into them from prerouting, forward, or postrouting.”
Final Answer: AQUESTION NO: 157 [Firewall – NAT and Redirect Actions]
Action=redirect allows you to make:
A. Transparent DNS Cache
B. Forward DNS to another device IP address
C. Enable Local Service
D. Transparent HTTP Proxy
Answer: D
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
Final Answer: DQUESTION NO: 158 [Routing – Automatically Created Routes]
What letters appear next to a route, which is automatically created by RouterOS when user adds a valid address to an active interface?
A. I
B. D
C. A
D. S
E. C
Answer: E
In RouterOS, when an IP address is assigned to an interface, a connected route is automatically created. These routes are marked with the letter “C” in the routing table, denoting “Connected.”
MikroTik Wiki – Routing Table Flags:
“C – directly connected routes (assigned via /ip address), added automatically when interface is active.”
MTCNA Course Material – Static vs Dynamic Routes:
“Connected (C) routes are added automatically when IP is assigned to an interface.”
Flag meanings:
C:✔Connected
S: Static
D: Dynamic
A: Active (not a route type)
I: Invalid or intermediate (not shown for connected)
