最新版的MTCNA認證指南，免費下載MTCNA學習資料得到妳想要的MikroTik證書NewDumps是一個學習MikroTik技術的人們都知道的網站。它受到了參加MTCNA認定考試的人的一致好評。這是一個可以真正幫助到大家的網站。為什麼NewDumps能得到大家的信任呢？那是因為NewDumps有一個MikroTik業界的精英團體，他們一直致力於為大家提供最優秀的考試資料。因此，NewDumps可以给大家提供更多的优秀的MTCNA参考书，以满足大家的需要。 最新的 MTCNA - MikroTik Training MTCNA 免費考試真題 (Q95-Q100):問題 #95
How long is level 1 (demo) license valid?
A. 1 year
B. 24 hours
C. Infinite time
D. 1 month
答案：C
解題說明：
RouterOS Level 1 license is the demo license that comes with all RouterOS installations (particularly on x86 or CHR before activation). It is unrestricted in time, meaning it never expires, but functionality is extremely limited.
* A. 24 hours # Incorrect. There is no such time-limited restriction.
* B. Infinite time # Correct. Level 1 license is perpetual but has limited features.
* C. 1 month # Incorrect. MikroTik does not impose monthly timeouts on license levels.
* D. 1 year # Incorrect. No temporary time-bound license is assigned by default.
Extract from Official MTCNA Course Material - Licensing Section:
"Level 1 (demo) license is unlimited in time but has very limited functionality. It is designed for testing purposes only." Extract from Rene Meneses MTCNA Study Guide - RouterOS Licensing:
"The Level 1 license is not time-limited, but it cannot be used in production due to its lack of key features." Extract from MikroTik Wiki - Licensing Model:
"License level 1 is a free demo license that does not expire."
問題 #96
How often are BPDUs sent from a Layer 2 device?
A. Every 10 minutes
B. Every 30 seconds
C. Every 2 seconds
D. Never
答案：C
解題說明：
BPDU (Bridge Protocol Data Units) are messages exchanged by switches in a Spanning Tree Protocol (STP) topology to maintain loop-free Layer 2 networks. By default, switches send BPDUs every 2 seconds.
MTCNA Course Material - STP Operation:
"Switches send BPDUs to maintain spanning tree and detect topology changes. The default transmission interval is 2 seconds." Cisco STP Documentation:
"BPDUs are transmitted by the root bridge and propagated every 2 seconds by default, controlled by the hello- time timer." Other options:
* A: Incorrect - BPDUs are essential for loop prevention
* C & D: Not correct - default is 2 seconds, not minutes
問題 #97
When using routing option check-gateway=ping, after how many timeouts is the gateway considered unreachable?
A. 0
B. 1
C. 2
D. 3
答案：C
解題說明：
In MikroTik RouterOS, if you enable check-gateway=ping on a static route, RouterOS sends periodic ICMP echo requests (ping) to the specified gateway.
By default, the gateway is considered unreachable after:
* 2 consecutive ping timeouts ##
This status will cause the router to remove the route from the routing table until the gateway responds again.
Evaluations:
* A. 4 ##Too many
* B. 1 ##Too sensitive; only one timeout doesn't mark it unreachable
* C. 2 ##Correct default behavior
* D. 3 ##Incorrect default
MTCNA Course Manual - Gateway Checking:
"When using check-gateway=ping, the router waits for two failed pings before declaring the route inactive." Rene Meneses Study Guide - Static Routing Behavior:
"check-gateway=ping disables the route after two ping failures."
Terry Combs Notes - Route Monitoring:
"Ping-based route checks fail after 2 missed responses - that route becomes inactive."
問題 #98
Netinstall can be used to
A. Reinstall software without losing licence
B. Install different software version (upgrade or downgrade)
C. Keep configuration, but reset a lost admin password
D. Install package for different hardware architecture
答案：A,B
解題說明：
Netinstall is a MikroTik utility used to reinstall or repair RouterOS on RouterBOARD devices. It can be used to:
* Reinstall RouterOS while preserving the existing license (#B)
* Install a different version of RouterOS - either older or newer (#C)
Limitations:
* A.#Incorrect - Netinstall will erase the configuration; it cannot recover a lost admin password without wiping the device.
* D.#Incorrect - You can only install software meant for the specific hardware architecture of the RouterBOARD.
Extract from Official MTCNA Course Material - Netinstall Tool:
"Netinstall can be used to reinstall RouterOS and change its version. It does not erase the license key." Extract from Rene Meneses MTCNA Study Guide - Recovery Tools:
"Netinstall allows you to load any RouterOS version compatible with your device. It does not delete the license." Extract from MikroTik Wiki - Netinstall Overview:
"Netinstall reinstalls the OS, can change versions, and retains license. It cannot recover configuration or passwords."
問題 #99
What does this simple queue do (check the image)?
A. Queue guarantees download data rate of one megabit per second for host 192.168.1.10
B. Queue limits host 192.168.1.10 download data rate to one megabit per second.
C. Queue guarantees upload data rate of one megabit per second for host 192.168.1.10
D. Queue limits host 192.168.1.10 upload data rate to one megabit per second.
