2021-04-20 == Course : MTCNA-EN Name E-mail 1. ARP is used to:Determine the IP address of the router to use when wanting to communicate with devices on other networksAssociate a TCP port to a MAC addressLimit an application’s trafficAssociate an IP address to a MAC address2. When the firewall "passthrough" action is applied to a packet, there will be no further processing of this packet. Is this true or false?FalseTrue3. A route in the routing table has the "DAC" flags. The "D" means:“Disabled”. The routing process will not use it until the administrator activates it“Discovered”. It will disappear after 5 minutes“Dynamic”. It was added by the routing process and the administrator cannot remove it“Discontinuous”. An error in IP addressing was found and has to be corrected by the network admin4. A "Bridge" interface is:A software interface managed by the “switch chip"A physical interface already in the router that has to be activated before useA software interface created via RouterOS menusA physical interface that must be purchased separately and installed in the router5. In "Simples Queues", what is the sampling rate of a client’s traffic to determine if he can “burst”?"Burst-limit" / "Max-limit" in secondsHalf of "Burst-time" in seconds1/16 of "Burst-time" in secondsEvery 1/100th of a second, regardless of other parameters entered6. Access to MikroTik routers can be done the following ways: (Select all valid responses) A web browser (Browser) Console Port Telnet / SSH WinBox7. You have RB751 and RB951 routers that need upgrading. You have chosen to use Netinstall. In which port will you plug your computer before you start?Any port will do as long as you configure it as a DHCP-clientPort 1Port 5Port 28. You are using a "Simple Queue" to limit the use of bandwidth on a 1Mbps link. You have 5 clients on your network. Choose the statement that best summarizes what might happen.The 5 customers will share the bandwidth; in the worst of cases, each get 200kbpsThe 5 customers will share the bandwidth; in the worst of cases, each gets 200kbps. But, with the bursting, they may go up to 300Kbps for short periods of timeCustomers will all get 1Mbps simultaneously. "Simple Queues" are not the best approach for this scenarioClients will all be limited to 200kbps, even if there is only one client on the network9. There is an automated way of creating a DHCP server by answering a few questions. Is this true or false?FalseTrue10. Static routing reacts very well and quickly to network failures. Is this true or false?TrueFalse11. What unwanted side effect can you expect to see when you start “Snooper” on a live wireless network?All registered wireless clients will operate at half speed for the duration of the snooping.All registered wireless clients will experience lost packets for the duration of the snooping.Nothing bad has ever been reported when snooping a wireless network.All registered wireless clients will lose connectivity for the duration of the snooping.12. Your colleague would like to access the office server while meeting his customers. He wants you to create a PPPoE server on your router. As for him, he’ll create a PPPoE client on his laptop and connect it to his mobile phone to gain access to the Internet. What do you tell him?It will not work because PPPoE is a layer 2 protocol. It must be on the same subnet as the router for it to workNo problem to do itIn addition to enabling PPPoE, you must create a PPP account on your router. That's allTo make this work, he’ll have to use IP v4 as PPPoE does not support IP v6 yet13. As far as packet throughput is concerned, using a bridge interface is as quick and efficient as using the switch chip. Is this true or false?TrueFalse14. The firewall’s "Custom Chains" can be used to: (Select all that apply) Limit the use of physical resources (memory and CPU) Accelerate packet processing through the firewall Encrypt configuration files Simplify rules management15. When configuring a SSTP server, it is necessary to assign the service to a specific interface. Is this true or false?FalseTrue16. To protect your router from traffic aimed at it, what basic firewall chain will you use?Any chain will doForwardInputOutput17. In the 802.11a/b/g/n protocols, the three channels that do not overlap are: (Pick all valid answers) 6 11 1 718. If you disable the firewall’s "Connection Tracking" feature, the following functions will also be disabled. Select all that apply. NAT Simple Queues P2P Connection-state19. The "Firewall" has two sections; what are they?"Sources" and "Destinations""Protocols" and "Ports""Matchers" and "Accept""Matchers" and "Actions"20. When enabled in "Queues", which value indicates the maximum allowed data rate during "Bursting"?Burst-limitMax-limitBurst-maxLimit-burst21. A route in the routing table has the "DAC" flags. This means that:The route was added by the routing process after being discovered through OSPFThe route was added by the routing process after being discovered through RIPIt's a static routeThe route was added by the routing process because a local interface has an IP address and is up and running22. When creating a "Simple Queue", which parameter must be specified?Max-limitBurst-limitDestinationTarget23. To protect your devices from traffic coming from the Internet, what basic firewall chain will you use?InputAny chain will doForwardOutput24. Bridges work at which layer(s) of the OSI model?Layer 3 onlyLayers 2 and 3Layer 2 onlyLayers 3 and 425. You support an old network with 50 computers on an old hub. What impact would replacing the hub with a switch having "full duplex" ports have?As each switch port is a broadcast domain, computers no longer hear the other computers broadcasts, thus reducing the unnecessary burden on computersFull duplex ports make data rates 4 times faster than on a hubIt is now possible to deploy a firewallAs each switch port is a collision domain, it eliminates collisions between computer data transfers and improves network performanceAvez-vous des commentaires pour nous? Do you have comments for us? End of quizz for "MTCNA-EN" MTCNA-EN
