CIST 1401 Section 7.1-7.4 PQ

When multiple routes to a destination exist, what is used to select the best possible route?
Click the card to flip 👆
1 / 36
Terms in this set (36)
When multiple routes to a destination exist, what is used to select the best possible route?
Metric
What information does the next hop entry in a routing table identify?
The first router in the path to the destination network.
A router is connected to network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. The router is also configured with a static route of 0.0.0.0 with a mask of 0.0.0.0.
The router receives a packet addressed to network 10.1.0.0/16. What will the router do with the packet?
Forward the packet to the next hop router specified by the route to network 0.0.0.0.
A router is connected to network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. There is no default route configured on the router.
The router receives a packet addressed to network 10.1.0.0/16. What will the router do with the packet?
Drop the packet.
Which of the following is a characteristic of static routing when compared to dynamic routing?
All routes must be manually updated on the router.
Which of the following tasks do routers perform? (Select two.)
Route data based on logical network addresses.
Maintain information about paths through an internetwork.
Which of the following routing protocols uses relative link cost as the metric?
OSPF
Which of the following routing protocols is used by routers on the internet for learning and sharing routes?
BGP
Which of the following routing protocols divides the network into areas, with all networks required to have an area 0 (area 0 identifying the backbone area)?
OSPF
Which of the following routing protocols is classified as a hybrid routing protocol?
EIGRP
What are the main differences between the OSPF and IS-IS routing protocols?OSPF requires an area 0, while IS-IS does not.Which of the following protocols has a limit of 15 hops between any two networks?RIPUnder which of the following circumstances might you implement BGP on your company network and share routes with Internet routers?If the network is connected to the Internet using multiple ISPs.Which of the following statements about RIP is true?RIP uses hop counts as the cost metric.Which of the following best describes OSPF?OSPF is a classless link state routing protocol.You have a private network connected to the internet. Your routers will not share routing information about your private network with internet routers. Which of the following best describes the type of routing protocol you would use?IGPA router is connected to network 192.168.1.0/24 and network 192.168.2.0/24. The router is configured to use RIP and has learned of networks 192.168.3.0/24 and 192.168.4.0/24. The next hop router for network 192.168.3.0 has changed. You need to make the change with the least amount of effort possible. What should you do?Wait for convergence to take place.You have a network configured to use the OSPF routing protocol. Which of the following describes the state when all OSPF routers have learned about all other routes in the network?ConvergenceWhich of the following routing protocols uses paths, rules, and policies instead of a metric for making routing decisions?BGPWhich of the following techniques allows incoming traffic addressed to a specific port to move through a NAT router and be forwarded to a specific host?Port forwardingYour computer has an IP address of 161.13.5.15. Your computer is on a:Public networkWhich of the following IP addresses is a valid IP address for a host on a public network?142.15.6.1Which of the following is not one of the ranges of IP addresses defined in RFC 1918 that are commonly used behind a NAT server?169.254.0.1 - 169.254.255.254Which of the following associates a port number with a host on a private network?PATYou have a small network at home that is connected to the internet. On your home network, you have a server with the IP address of 192.168.55.199/16. You have a single public address that is shared by all hosts on your private network. You want to configure the server as a web server and allow internet hosts to contact the server to browse a personal website. What should you use to allow access?Static NATYou are the network administrator for a small company that implements NAT to access the internet. You recently acquired five servers that must be accessible from outside your network. Your ISP has provided you with five additional registered IP addresses to support these new servers, but you don't want the public to access these servers directly. You want to place these servers behind your firewall on the inside network, yet still allow them to be accessible to the public from the outside. Which method of NAT translation should you implement for these five servers?StaticYou want to connect your small company network to the internet. Your ISP provides you with a single IP address that is to be shared between all hosts on your private network. You do not want external hosts to be able to initiate connections to internal hosts. What type of network address translation (NAT) should you implement?DynamicYou have a computer that is connected to the internet through a NAT router. You want to use a private addressing scheme for your computer. Which of the following IP addresses could you assign to the computer? (Select all that apply.)10.0.12.15 172.18.188.67 192.168.12.253You have a small network at home that is connected to the internet. On your home network, you have a server with the IP address of 192.168.55.199/16. All computers on your home network can connect to the internet. From your work office, you try to access your home computer using its IP address, but are unable to communicate with the server. You are able to connect to other hosts on the internet. Why can't you access the server?Private addresses are not accessible through the internet."Packet needs to be fragmented but DF set." What does this mean?One of the intermediate routers is an MTU black hole.You have just connected a new computer to your network. The network uses static IP addressing. You find that the computer can communicate with hosts on the same subnet, but not with hosts on a different subnet. No other computers are having a problem. Which of the configuration values would you most likely need to change?Default gatewayYou manage a network with multiple subnets connected to the internet. A user reports that she can't access the new server used in the accounting department. You check the problem and find out that her computer cannot access any server on that subnet. However, the computer does access other computers on other subnets as well as the internet. Which of the following is most likely the cause of the problem?Missing route on the default gateway routerYou manage a network with multiple subnets connected to the internet. A user reports that she can't access the internet. You investigate the problem and find that she can access all hosts on the private network, including subnets, but no hosts on the internet. Which of the following is likely the cause of the problem?Missing default route on a routerExamine the following output: 4 22 ms 21 ms 22 ms sttlwa01gr02.bb.ispxy.com [154.11.10.62] 5 39 ms 39 ms 65 ms plalca01gr00.bb.ispxy.com [154.11.12.11] 6 39 ms 39 ms 39 ms Rwest.plalca01gr00.bb.ispxy.com [154.11.3.14] 7 40 ms 39 ms 46 ms svl-core-03.inet.ispxy.net [205.171.205.29] 8 75 ms 117 ms 63 ms dia-core-01.inet.ispxy.net [205.171.142.1] Which of these commands produced this output?tracertWhich of the following utilities would you use to view the routing table?routeWhat TCP/IP utility can you use to see if a router is working properly?tracert