Kamis, 01 Maret 2012

Soal-soal tentang Routing2

New Page 1
                19.  Refer to the graphic. R1 is unable to establish an OSPF neighbor relationship with R3. What are  possible reasons for this problem? (Choose two)
-          All of the routes need to be configured for backbone Area 1
-          R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3
-          A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established
-          The hello and dead interval timers are not set to the same values on R1 and R3.
-          EIGRP is also configured on these routes with a lower administrative distance
-          R1 and R3 are configured in different areas.

20.  Refer to the exhibit. Which two statements are true about the loopback address that is configured on Router B? (Choose two)
-          It ensures that data will be forwarded by routerB
-          It provides stability for the OSPF process on RouterB
-          It specifies that the routerID for routerB should be 10.0.0.1
-          It decreases the metric for routes that are advertised from routerB
-          It indicates that RouterB should be elected the DR for the LAN.

21.  Which statements describe the routing protocol OSPF? (Choose three)
-          It supports VLSM
-          It is used to route between authonomous systems
-          It confines network instability to one area of the network
-          It increases routing overhead on the network
-          It allows extensive control of routing updates.
-          It is simpler to configure than RIPv2

22.  A router receives information about network 192.168.10.0/24 from multiple sources. What will the router consider the most reliable information about the path to that network?
-          An OSPF update for network 192.168.0.0/16
-          A static router to network 192.168.10.0/24
-          A static router to network 192.168.10.0/24 with a local serial interface configured as the next hop
-          A RIP update for network 192.168.10.0/24
-          A directly connected interface with an address of 192.168.10.254/24
-          A default route with a next hop address of 192.168.10.1

23.  Refer to the exhibit. When running OSPF, what would cause router A not to form an adjacency with router B?
-          The loopback addresses are on different subnets
-          The value of the dead timers on the router are different
-          Route summarization is enabled on both routers
-          The process indentifier on router A is different than the process identifier on router B.

24.  What information does a router running a link-state protocol use to build and maintain its topological database? (choose two)
-          Hello packets
-          SAP messages sent by other routers
-          LSAs from other routers
-          Beacons received on point-to-point links
-          Routing tables received from other link-state routers
-          TTL packets from designated routers.

25.  OSPF routing uses the concept of areas what are the characteristics of OSPF areas? (choose three)
-          Each OSPF area requires a loopback interface to be configured.
-          Areas may be assigned any number from 0 to 65535
-          Area 0 is called the backbone area
-          Hierarchical OSPF network do not require multiple areas
-          Multiple OSPF areas must connect to area 0
-          Single area OSPF network must be configure in area 1.

26.  Refer to the exhibit. The network administrator easy configuration option and minimal routing protocol traffic. Which two option provide adequate routing table information for traffic that passes between the two routers and satisfy the request of the network administrator? (Choose two)
-          A dynamic routing protocol on internetRouter to advertise summarized routers to CentralRouter.
-          A dynamic routing protocol on CentralRouter to advertise summarized routers to InternetRouter.
-          A static route on InternetRouter to direct traffic that is destined for 172.16.0.0/16 to CentralRouter.
-          A dynamic routing protocol on InternetRouter to advertise all routers to CentralRouter.
-          A dynamic routing protocol on CentralRouter to advertise all routes to internetRouter.
-          A static, default route on CentralRouter that directs traffic to InternetRouter

27.  Which parameter or pparameters are used to calculate OSPF cost in cisco routers?
-          Bandwidth, delay, and MTU
-          Bandwidth
-          Bandwidth and MTU
-          Bandwidth, MTU, Reliability, Delay, and load.

28.  Which two statements describe the advanteges to the use of RIP over the use of OSPF? (choose two)
-          RIP require less time to converge
-          RIP use less bandwidth
-          RIP is less complex to configure
-          RIP demands fewer router resources
-          RIP has a more accurate metric

29.  The EIGRP configuration in the Glencoe router uses a single network statement. From the output shown in graph would advertise these network in EIGRP?
-          Network 172.26.168.0 area 478
-          Network 172.26.0.0
-          Network 172.26.168.128 0.0.0.127
-          Network 172.26.168.128 area 478

30.  What is the OSPF default frequency, in seconds, at with a cisco router sends hello packets on multiaccess network?
-          10
-          40
-          30
-          20

31.  Refer to the exhibit. Explain how the routes in the table are being affected by the status change on interface ethernet0.
-          The router is poisoning the routes and multicasting the new path costs via interface Ethernet1
-          The router is receiving updates about unreachable networks from router that are connected to interface Ethernet1
-          The router is poisoning the routes and broadcasting the new path costs via interface Ethernet1
-          The router is requesting updates for these networks from routers that are connected to interface ethernet1.

32.  Refer to the exhibit. After a RIP route is marked invalid on Ruter_1, how much time will elapse before that route is removed from the routing table?
-          30 seconds
-          60 seconds  à versi 9tut.com
-          90 seconds
-          180 seconds
-          240 seconds

33.  Which of the following describe the process identifier that is used to run OSPF on a router? (choose two)
-          It is locally significant
-          It is globally significant
-          It is needed to identify a unique instance of an OSPF database
-          It is an optional parameter required only if multiple OSPF processes are running on the router
-          All routers in the same OSPF area must have the same process ID if they are to exchange routing information

34. 
Jawaban :


35.  Refer to the exhibit. Based on the exhibited routing table, how will packets from a host within the 192.168.10.192/26 LAN be forwarded to 192.168.10.1?
-          The router will forward packets from R3 to R2 to R1
-          The router will forward packets from R3 to R1
-          The router will forward packets from R3 to R1 to R2
-          The router will forward packets from R3 to R2 to R1 and from R3 to R1

36.  Refer to the exhibit. How many paths can the EIGRP routing process use to forwad packets from HQ_router to a neighbor router?
-          Two equal-cost paths
-          Two unequal-cost paths
-          Three equal-cost paths
-          Three unequal-cost paths
-          Four equal-cost paths
-          Four unequal-cost paths

Tidak ada komentar:

Posting Komentar