Minggu, 17 November 2019

Latihan Soal MikroTik Certified Traffic Control Engineer (MTCTCE) Exam Part 2



1. What does this simple queue do (check the image)?

A. Queue limits host 192.168.1.10 download data rate to one megabit per second.
B. Queue guarantees upload data rate of one megabit per second for host 192.168.1.10
C. Queue limits host 192.168.1.10 upload data rate to one megabit per second.
D. Queue guarantees download data rate of one megabit per second for host 192.168.1.10

A. DHCP service is not possible in this setup
B. Ethernet and wireless interfaces
C. every bridge port
D. only on bridge interface


3. Mark the queue types that are available in RouterOS

A. PCQ – Per Connection Queuing
B. DRR - Deficit Round Robin
C. FIFO - First In First Out (for Bytes or for Packets)
D. RED – Random Early Detect (or Drop)
E. SFQ – Stochastic Fairness Queuing
F. LIFO - Last In First Out


4. You need to change default web-proxy error page. What page should you edit?



A. /error.html
B. /file
C. /hotspot.html
D. /webproxy/error.html
E. /webproxy/issue.html


5. What RouterOS feature should be used to redirect user HTTP requests as result opening completely different page?

A. web-proxy access-list
B. web-proxy cache-list
C. firewall nat action redirect
D. web-proxy direct-list


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
--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" 8M, "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
D. queue "AA" will get 5M, "AB" 2M, "AC" 4M, "BA" 10M, "BB" 2M
E. queue "AA" will get 3M, "AB" 2M, "AC" 4M, "BA" 10M, "BB" 2M


7. You set your client's simple queue:

0 name="Your Client" target-addresses=1.1.1.1/32 dst-address=0.0.0.0/0
interface=all parent=none direction=both priority=8
queue=default-small/default-small limit-at=0/0 max-limit=0/0
burst-limit=0/0 burst-threshold=0/0 burst-time=0s/0s
total-queue=default-small total-max-limit=10M

The client starts downloading from a website that gives him a download speed of 7 Meg, then starts uploading a file to a hosted server. This server can transfer at 5 Meg bandwidth.

Which upload speed is allowed for the client?

A. 4 Meg
B. 2 Meg
C. 5 Meg
D. 3 Meg


8. Someone has installed an illegal DHCP server on your broadcast domain. While organizing everything for removal of the server, you want to minimize the problems caused on your network. On your DHCP server, you should

A. specify "Src. Address"
B. enable authoritative mode
C. enable "Always Broadcast"
D. increase "delay-threshold" value


9. Firewall NAT rules process only the first packet of each connection.



10. DST-NAT can process traffic sent from and through the router.



11. Which action do you need to use with an NAT rule, to NAT a private address range to public address range?

A. Netmap
B. Src-nat
C. Same
D. Masquerade


12. 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 4M, "D2" 3M, "D1" 3M
B. queue "C1" will get 3M, "D2" 3M, "D1" 5M
C. queue "C1" will get 5M, "D2" 2M, "D1" 3M
D. queue "C1" will get 4M, "D2" 7M, "D1" 4M
E. queue "C1" will get 2M, "D2" 5M, "D1" 3M


13. You want to offer a static route to your DHCP clients (besides the default-route). What is the best way to do that?

A. Set DHCP options 3
B. Set a static IP into /ip route and it will automatically be sent to clients
C. Set DHCP options 121
D. There is no way to send a static-route to DHCP clients


14. What is the recommended sequence for traffic marking by mangle for QoS?

A. Add mark-connection then mark-packet
B. Add only mark-packet
C. Add action=passtrough
D. Add only mark-connection


15. A MikroTik Router has the following configuration
/ip address
add address=1.1.1.2/30 interface=ether1
add address=2.2.2.2/30 interface=ether2
add address=192.168.10.1/24 interface=ether3

/ip firewall mangle
add action=mark-connection chain=prerouting
dst-port=80 new-connection-mark=web_c passthrough=yes protocol=tcp
add action=mark-routing chain=prerouting
connection-mark=web_c new-routing-mark=web passthrough=no

/ip firewall nat
add action=masquerade chain=srcnat
out-interface=ether3

/ip route
add gateway=1.1.1.1
add gateway=2.2.2.2 routing-mark=web

What can be said about the Web Access (port 80) by a customer connected at ether3 interface with IP 192.168.10.2/24, gateway 192.168.10.1 ?

A. The customer will access the Web using the gateway 2.2.2.2
B. The Customer is unable to access the Web.
C. The customer will access the Web using the gateway 1.1.1.1
D. The Customer will access the Web by ECMP, by using both gateways 1.1.1.1 and 2.2.2.2


16. In normal Network Conditions which types of addresses will never be a source address in an IP packet in your physical network.

A. loopback address
B. multicast address
C. public address
D. broadcast address
E. unicast address
F. private address


17. If we change TTL to 2 in mangle chain prerouting

A. packet will be forwarded to the next 2 L3 devices
B. packet will be forwarded only to next L3 device
C. packet will not be forwarded
D. packet will always reach its destination


18. DHCP server is configured on a router’s ether1 interface. IP address 192.168.0.100/24 is assigned to the interface. Possible IP pools, that can be used by this DHCP server, are:



A. 192.169.0.1-192.169.0.254
B. 192.168.0.1-192.168.0.14
C. 192.168.0.1-192.168.0.99,192.168.0.101-192.168.0.254
D. 192.168.0.1-192.168.0.255


19. What is marked by connection-state=established matcher?

A. Packet belongs to an existing connection,for example a reply packet or a packet which belongs to already replied connection
B. Packet is related to, but not part of an existing connection
C. Packet does not correspond to any known connection
D. Packet begins a new TCP connection


20. Which of these techniques equalizes the flow between connections when the link is completely full:



A. PCQ
B. RED
C. PFIFO
D. FIFO
E. SFQ


21. 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. C1
B. D1
C. C3
D. C2
E. D2


22. Select types of Load Balancing methods

A. PCC
B. PCQ
C. NTH
D. ECMP


23. log messages are stored on disk by default



24. Same IP address can be included in multiple address-lists, and these lists can be used separate from one another.



25. 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 whole packet will be forwarded back to the sender regardless of its contents
C. The packet will be discarded regardless of its content
D. The packet will be rejected only if the destination network is unreachable




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