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MikroTik Routers and Wireless

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[Back To Main Menu] 1. Same IP address can be included in multiple address-lists, and these lists can be used separate from one another.

00:23:44 last save: 2013-12-13 13:27:05

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2. The Simple Queue Total tab controls both upload and download totals aggregated together. A. True B. False 3. Mark the queue types that are available in RouterOS A. DRR - Deficit Round Robin B. LIFO - Last In First Out C. RED – Random Early Detect (or Drop) D. PCQ – Per Connection Queuing E. SFQ – Stochastic Fairness Queuing F. FIFO - First In First Out (for Bytes or for Packets) 4. 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 filter add chain=forward src-address=192.168.0.0/24 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 nat add chain=dstnat src-address=192.168.99.1 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 5. If a packet comes to a router and starts a new, previously unseen connection, which connection state would be applied to it? A. new B. unknown C. invalid D. established E. no connection state would be applied to such packet 6. You have a queue structure: queue "MK" max-limit=23M -queue "A" parent="MK" limit-at=10M max-limit=18M --queue "AA" parent="A" limit-at=3M max-limit=5M priority=1 --queue "AB" parent="A" limit-at=1M max-limit=2M priority=2 --queue "AC" parent="A" limit-at=4M max-limit=8M priority=4 -queue "B" parent="MK" limit-at=10M max-limit=18M

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MikroTik Routers and Wireless

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--queue "BA" parent="B" limit-at=1M max-limit=10M priority=1 --queue "BB" parent="B" limit-at=2M max-limit=3M priority=3

Select the correct answer for the worst case scenario when all queues are trying to get all available traffic. A. queue "AA" will get 5M, "AB" 2M, "AC" 4M, "BA" 10M, "BB" 2M B. queue "AA" will get 3M, "AB" 1M, "AC" 8M, "BA" 1M, "BB" 3M C. queue "AA" will get 5M, "AB" 2M, "AC" 8M, "BA" 10M, "BB" 3M

00:23:44 last save: 2013-12-13 13:27:05

D. queue "AA" will get 3M, "AB" 2M, "AC" 4M, "BA" 10M, "BB" 2M

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E. queue "AA" will get 5M, "AB" 2M, "AC" 8M, "BA" 10M, "BB" 2M 7. You have a queue structure: queue "GP" max-limit=10M - queue "M" parent="GP" limit-at=4M max-limit=6M - - queue "C1" parent="M" limit-at=1M max-limit=7M priority=4 - - queue "C2" parent="M" limit-at=1M max-limit=4M priority=1 - - queue "C3" parent="M" limit-at=3M max-limit=7M priority=8 - queue "F" parent="GP" limit-at=5M max-limit=8M - - queue "D1" parent="F" limit-at=3M max-limit=4M priority=5 - - queue "D2" parent="F" limit-at=2M max-limit=5M priority=2 If queues "C2" and "C3" are not requiring any traffic, how is all the available bandwidth going to be distributed in worst case scenario when all other queues are trying to get all available traffic? A. queue "C1" will get 5M, "D2" 2M, "D1" 3M B. queue "C1" will get 4M, "D2" 3M, "D1" 3M C. queue "C1" will get 4M, "D2" 7M, "D1" 4M D. queue "C1" will get 3M, "D2" 3M, "D1" 5M E. queue "C1" will get 2M, "D2" 5M, "D1" 3M 8. Is it possible to use the serial port of MikroTik to communicate with an external device connected by null-modem cable? A. Yes, when other is a MikroTik router. B. Yes, if port is not being used C. Yes, it is always possible by /system serial-terminal command. 9. An IP packet has matched all the conditions of a firewall rule and the action reject and the option icmp-network-unreachable was initiated for that packet. What will happen with the packet content ? A. The packet header will receive a flag of \\\"icmp-network-unreacheble\\\" B. The packet will be rejected only if the destination network is unreachable C. The whole packet will be forwarded back to the sender regardless of its contents D. The packet will be discarded regardless of its content 10. You have a queue structure: queue "GP" max-limit=10M - queue "M" parent="GP" limit-at=4M max-limit=6M - - queue "C1" parent="M" limit-at=1M max-limit=7M priority=4 - - queue "C2" parent="M" limit-at=1M max-limit=4M priority=1 - - queue "C3" parent="M" limit-at=2M max-limit=7M priority=8 - queue "F" parent="GP" limit-at=5M max-limit=8M - - queue "D1" parent="F" limit-at=3M max-limit=4M priority=5 - - queue "D2" parent="F" limit-at=2M max-limit=5M priority=2 Which queue will get more than limit-at in worst case scenario?

A. C2 B. C3

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C. D1 D. C1 E. D2 11. SFQ - Stochastic Fairness Queuing (SFQ) is ensured by hashing and round-robin algorithms. How many different hash values (substreams) can SFQ have ?

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A. 65535 B. 1024

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C. 128 D. depends on free memory 12. Which of these techniques equalizes the flow between connections when the link is completely full:

A. PFIFO B. PCQ C. FIFO D. SFQ E. RED 13. An ISP is running a transparent proxy on the router. You want to restrict certain clients from accessing the proxy. Which firewall chain would you create the rule in: A. Postrouting B. Output C. Prerouting D. Input E. Forward 14. There can be more than one DHCP relay between DHCP server and DHCP client. false

15. You have default configuration, the firewall filter configuration is /ip firewall filter add chain=input src-address=192.168.0.1 action=accept /ip firewall filter add chain=input action=log /ip firewall filter add chain=input action=drop Which host is allowed to access the router? A. IP address 5.8.8.8, MAC-address 00:0C:42:01:02:03 B. IP address 192.168.0.1, MAC-address 00:0C:42:05:05:01 C. IP address 192.168.0.1, MAC-address 00:0C:42:01:01:02 D. IP address 192.168.0.2, MAC-address 00:0C:42:01:01:02 16. To be able to do NAT the connection tracking does not need to be enabled. false

17. You want to offer a static route to your DHCP clients (besides the default-route). What is the best way to do that? A. There is no way to send a static-route to DHCP clients B. Set DHCP options 3 C. Set DHCP options 121

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D. Set a static IP into /ip route and it will automatically be sent to clients 18. Is it possible for a client to get an IP address but no gateway after a successful DHCP request? true

19. Which of the following is true for mangle facility in RouterOS? A. Mangle facility is used to mark IP packets with special marks for future processing B. Mangle facility can be used to modify some fields in the IP header and TTL fields

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C. The mangle mark can be transmitted across the network, and used by other routers D. Marks packet can be used by other router facilities like routing and bandwidth management 20. Possible actions of ip firewall filter are: A. add-to-list B. tarpit C. bounce D. accept E. log F. tarp 21. Simple Queue number 0 defines 2M for upload and download for target IP 10.10.0.33. Simple Queue number 1 defines 4M for upload and download for target IP 10.10.0.33. Client 10.10.0.33 is be able to obtain A. 0M upload/download B. 2M upload/download C. 4M upload/download D. 6M upload/download 22. You have a DHCP server on your MikroTik router. The IP addresses 10.1.2.2-10.2.2.20 are distributed in the DHCP network. Additionally, 3 static IP address are defined for your servers: 10.1.2.31-10.1.2.33. After a while 20 more IP addresses need to be distributed in the network. Is it possible to distribute the extra IP address without adding another DHCP Server? true

23. You can set ANY "DHCP option" from 1 to 254, including private use DHCP options (224-254) on MikroTik RouterOS DHCP server. true

24. Using the mangle facility, it is more efficient (uses less router CPU) to mark packets than to mark connections. false

25. RouterOS router can act as a radius client and authenticate through a radius server different services. Which of the following can authenticate using this method? A. Wireless clients B. IPSEC users C. PPTP users D. PPPoE users E. RouterOS users Finish

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