MTCNA Exam Dumps : MikroTikCertified Network Associate Exam

/27 subnet = 255.255.255.224 → block size of 32

To determine the subnet range:

Start by finding block base:15.242.55.62 falls in the 15.242.55.32/27 subnetRange: 15.242.55.32 – 15.242.55.63Network Address = 15.242.55.32Broadcast Address = 15.242.55.63Usable Host Range = 15.242.55.33 to 15.242.55.62

Evaluation:

A. 15.242.55.33 – 15.242.55.62 →✅Valid host range

B. 15.242.55.32 – 15.242.55.63 →❌Includes network and broadcast addresses

C. 15.242.55.31 – 15.242.55.62 →❌15.242.55.31 is outside this subnet

D. 15.242.55.33 – 15.242.55.63 →❌Includes broadcast address

MTCNA Course Slides – Subnetting:

“In a /27 subnet (block size 32), the first address is the network, last is broadcast. Only the IPs in between are valid host addresses.”

René Meneses Guide – Subnetting Examples:

“A /27 includes 32 addresses. For subnet 192.168.1.32/27, usable IPs are 192.168.1.33–62.”

Terry Combs Notes – Addressing Exercises:

“Subtract 2 from total IPs in subnet for host count. Don't use .0 (network) or .255 (broadcast) equivalents.”

Answer: A 

To determine if two hosts can communicate directly, their IP addresses must:

Belong to the same subnet

Have matching subnet boundaries (based on their masks)

Let’s evaluate each:

A. 192.168.17.15/29 → Subnet: 192.168.17.8 – 192.168.17.15

192.168.17.20/28 → Subnet: 192.168.17.16 – 192.168.17.31

→ Different subnets →❌

B. 10.5.5.1/24 → Subnet: 10.5.5.0 – 10.5.5.255

10.5.5.100/25 → Subnet: 10.5.5.0 – 10.5.5.127

→ Different masks → Host with /25 may treat others outside /25 as unreachable →❌

C. 10.10.0.17/22 → Range: 10.10.0.0 – 10.10.3.255

10.10.1.30/23 → Range: 10.10.0.0 – 10.10.1.255

→ Both addresses fall within same larger /22 range →✅

D. 192.168.0.5/26 → Subnet: 192.168.0.0 – 192.168.0.63

192.168.0.100 → Not enough info; assume default /24

→ /26 and /24 will not overlap fully → likely unreachable →❌

MTCNA Course Manual – IP Subnetting:

“Hosts can communicate directly if they are in the same IP range and have the same subnet mask. Different subnet boundaries require routing.”

René Meneses Guide – Mask Comparison:

“Be cautious of overlapping address ranges. Matching IPs in same range with differing subnet masks may fail to communicate.”

Terry Combs Notes – Direct Connectivity Rules:

“Same subnet mask and same address block = direct communication. If masks differ, communication needs a router.”

To configure a MikroTik wireless interface as a basic access point (AP), the minimum required parameters are:

Mode → Must be set to ap-bridge or bridge

SSID → Defines the wireless network name to broadcast

Band → Determines which frequency ranges are used (e.g., 2.4GHz b/g/n or 5GHz a/n/ac)

Frequency → Specifies the actual channel used for broadcasting

Options reviewed:

A. radio name →✘Optional. A cosmetic label used to identify the radio in Winbox.

B. scan-list →✘Optional. Used to define which frequencies the interface should scan.

C.✔Required

D.✔Required

E.✔Required

F. DFS mode →✘Optional and auto-configured based on regulatory domain.

G. WDS →✘Only needed for bridging or extending networks.

Extract from Official MTCNA Course Material – Wireless Configuration:

“The minimal settings to enable an Access Point include: mode, SSID, band, and frequency. Without these, the interface won’t broadcast.”

Extract from René Meneses Study Guide – Wireless Basics:

“To turn on an AP: Set the mode to ap-bridge, define SSID, band, and frequency. Other settings are optional or advanced.”

Extract from Terry Combs Notes – Wireless Setup:

“Essential: mode, frequency, SSID, band. Others like WDS and DFS are situational.”

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