MTCRE_1-4

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1. Select true statements about PPTP/PPPoE server.

2. What is the proper name in OSPF terminology for a router that redistributes routes from RIP to OSPF?

3. In broadcast networks OSPF depends on the following to function correctly.

4. Which is the routing protocol used for internet routing?

5. The 'check-gateway' option is enabled for one route. Select all statements that are true:

6. A MikroTik system administrator implemented OSPF Routing protocol in the network. But realized that he has a static route on the routers. What can be done to make the static route work as a failover whenever the dynamic routing protocol fails.

7. Which route will be used to reach host 192.168.1.55?

8. If 'check-gateway' is enabled for an ECMP route and one of the gateways is unreachable, then

9. There are two routes in the routing table:

10. Mark all correct ECMP routes: 0.0.0.0/0 0.0.0.0/0 0.0.0.0/0 0.0.0.0/0

11. /ip route conguration on router,

12. When sending out an ARP request, an IP host is expecting what kind of address for an answer?

13. For a user (one entry) in local PPP Secrets/PPP Proles database, it is possible to:

14. Which of the following conditions have to be fullled for two routers on one ethernet segment to become ospf neighbors?

15. It is possible to create a conguration where VLAN and PPTP interfaces are bridged together.

16. How is PPPoE concentrator discovered?

17. When using routing option 'check-gateway=ping' what is the ICMP echo request interval (in seconds)?

18. What conditions listed below are required to set up an EoIP Tunnel?

19. Consider the following diagram. Assuming that all the necessary conguration has already been done on R2 (proxy-arp is disabled), to communicate from a device on LAN1 to a device on LAN2, which of the following congurations on R1 would enable this?

192.168.0.0/24 0.0.0.0/0

192.168.1.0/24 192.168.0.0/24

192.168.1.0/24 0.0.0.0/0

20. A routing table has following entries:

21. Select valid routing protocols:

22. If 'check-gateway' option is enabled on one route it will affect all routes with the same gateway:

23. In OSPF network it is possible to use area-id=0.0.0.0 for non backbone area

24. In OSPF protocol, which one of these router types are responsible for route distribution between different Autonomous systems?

25. The OSPF network is congured as on the attached gure. Each of the links has cost sets as on the gure. If we congure redistribution of default route on router A with command: /routing ospf instance set 0 distribute-default=always-astype-2 metric-default=5. What will be the cost of the default route on router B ?

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1. There are 6 routers running OSPF and connected with each other using point-to-point network types. How many Designated Routers are there among them?

2. The 'check-gateway' option is enabled for one route. Select all statements that are true:


5. Routing protocols used within the same AS are referred to as Exterior Gateway Protocols.


7. It is possible to lter ospf routes within a single ospf area


9. RouterOS main routing table contains static, RIP, and OSPF routes destined to the same network. Which of the following routes will be used if the administrative distance of each of the routing protocol entries is set to their default values?

10. To assign specic trac to a route - trac must be identied by a routing mark. Each packet can only have one routing mark.

11. Consider the following diagram. Assuming that all the necessary conguration has already been done on R2 (proxy-arp is disabled), to communicate from a device on LAN1 to a device on LAN2, which of the following congurations on R1 would enable this?

0.0.0.0/0

192.168.1.0/24 192.168.0.0/24

192.168.1.0/24

192.168.0.0/24

0.0.0.0/0

0.0.0.0/0 192.168.1.0/24 192.168.0.0/24

192.168.1.0/24

0.0.0.0/0

14. PPPoE server only works within one Ethernet broadcast domain that it is connected to. If there is a router between server and end-user host, it will not be able to create PPPoE tunnel to that PPPoE server.

15. Which type of ip route is the highest priority for routing decision ?

16. Which routing table is used to apply recursive routing at MikroTik RouterOS

17. In case it is not administratively dened, how is OSPF Router ID determined?

19. When creating a route, it is possible to specify the gateway to a network even if the gateway is not directly connected by using recursive next-hop resolving from an existing route.


22. For a user (one entry) in local PPP Secrets/PPP Proles database, it is possible to:

23. To securely bridge together 2 remote networks following methods need to be used:

24. RouterOS device has acquired an IP address from an ISP using DHCP client. The same router is used for assigning IP addresses to local users using DHCP server, masquerade rule is congured properly. Packets that are coming from the ISP have TTL=1. Select correct statement:


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1.There can be more than one PPPoE server in a single broadcast domain:

2. ECMP provides:

3.There are two routes in the routing table:

4. Consider the following diagram. We want to communicate from a device on LAN1 to a device on LAN2. Assuming that all necessary congurations are already included on R2, which of the following congurations in R1 would enable this communication? 192.168.1.0/24 0.0.0.0/0 0.0.0.0/0 192.168.1.0/24

192.168.0.0/24

192.168.0.0/24

5. To securely bridge together 2 remote networks you can use

6. /ip route conguration on router :

7. In broadcast networks OSPF depends on the following to function correctly.

8. The correct order for PPPOE discovery stage is

9. A network administrator checks the IP routing table (/ip route print) and notices that there are two different routes (different /ip route entries) to the destination network 10.0.0.0/8. Each one has exactly one gateway (which is different to the other) and both are active (ag A). What could cause this behaviour of 2 routing entries to the same network with both being active? (choose all possible answers)

10. PPPoE server only works within one Ethernet broadcast domain that it is connected to. If there is a router between server and end-user host, it will not be able to create PPPoE tunnel to that PPPoE server.

11. It is possible to lter ospf routes within a single ospf area

12.You have a router with the following IP addresses:

10.50.1.0/30

10.40.1.0/24,10.250.1.0/30 10.251.1.0/30 10.50.2.0/30

0.0.0.0/0 10.0.0.0/8

10.50.1.0/30

10.40.1.0/24 10.250.1.0/30 10.251.1.0/24 10.50.2.0/30 10.50.1.0/30 10.50.2.0/30

10.50.1.0/30

10.40.1.0/24,10.250.1.0/30 10.251.1.0/30 10.50.2.0/30


14. When using routing option 'check-gateway=ping' after how many timeouts is gateway considered unreachable:



17. An OSPF backbone area is only necessary when more than one area is used on your network. Backbone area could be removed, when only one area exists.

18.There are two routes in the routing table:


20.A routing table has following entries:

21. In OSPF protocol, which one of these router types are responsible for route distribution between different Autonomous systems?

22. When adding a static route, you must always ensure that you add both the gateway and the interface.

23. Router A and B are both running as PPPoE servers on different broadcast domains of your network. It is possible to set Router A to use "/ppp secret" accounts from Router B to authenticatePPPoE customers.


25. When sending out an ARP request, an IP host is expecting what kind of address for ananswer?


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2. The correct order for PPPOE discovery stage is


4. OSPF area ID does not need to be unique within the AS.

5. Router A and B are both running as PPPoE servers on different broadcast domains of your network. It is possible to set Router A to use "/ppp secret" accounts from Router B toauthenticate PPPoE customers.

6. Which static-route rule will have priority for destination 192.168.0.18? 192.168.0.0/24 192.168.0.0/26 192.168.0.0/28 192.168.0.0/26 192.168.0.0/28

192.168.0.0/24




10. To assign specic trac to a route – trac must be identied by a routing mark. Each packet can only have one routing mark.

11. There is no way to establish OSPF adjacency when the link doesn't support multicast trac

12. If one of two gateways is unreachable in an ECMP route with check gateway set, 50% of packets will be lost .

13. In OSPF interface conguration what effect will a “passive=yes” option have on aspecic interface ?


15. /ip route can have DS ags simultaneously.

16. Consider the following diagram. We want to communicate from a device on LAN1 to adevice on LAN2. Assuming that all necessary congurations are already included on R2,which of the following congurations in R1 would enable this communication? 0.0.0.0/0

192.168.1.0/24 192.168.0.0/24

192.168.0.0/24

0.0.0.0/0

192.168.1.0/24

0.0.0.0/0

0.0.0.0/0 192.168.1.0/24

17. EOIP tunnels can not be bridged because they are not true layer 2 tunnels.

18. When using routing option 'check-gateway=ping' after how many timeouts is gatewayconsidered unreachable:

19. When adding a static route, you must always ensure that you add both the gateway and the interface.

20. Consider two geographically separate sites. At each site, there is a RouterOS device.Ether1 is connected to the LAN and Ether2 is connected to the Internet.An EoIP tunnel is created between the two routers. And on both routers a Bridge interfacewith the EoIP tunnel and Ether1 as ports.10 users are connected at site A and 30 users at site B. All users are congured to use aDHCP server to obtain IP address conguration.What is the minimum number of DHCP servers needed, (select correct conguration):

21. What is the administrative distance of OSPF routes?

22. You have a router with the following IP addresses:

10.0.0.0/8 0.0.0.0/0

10.40.1.0/24 10.250.1.0/30 10.251.1.0/30 10.50.1.0/30,and 10.50.2.0/30 10.50.1.0/30 10.50.2.0/30

10.40.1.0/24 10.250.1.0/30 10.251.1.0/24 10.50.1.0/30 10.50.2.0/30

23. RouterOS device has acquired an IP address from an ISP using DHCP client. The samerouter is used for assigning IP addresses to local users using DHCP server, masquerade rule is congured properly. Packets that are coming from the ISP have TTL=1. Select correct statement:

24. Router needs to send packets to 192.168.3.240. Which gateway will be used if you add route:

25. A MikroTik system administrator implemented OSPF Routing protocol in the network.But realized that he has a static route on the routers. What can be done to make the staticroute work as a failover whenever the dynamic routing protocol fails.


MTCRE_1-4

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