Ccna3 Chapter 5

Front 1

Refer to the exhibit. What three conclusions can be drawn from the displayed output? (Choose three.)

Back 1

* The DR can be reached through the GigabitEthernet 0/0 interface.
* The router ID values were not the criteria used to select the DR and the BDR.
* There have been 9 seconds since the last hello packet sent.

Front 2

Refer to the exhibit. Which conclusion can be drawn from this OSPF multiaccess network?​

Back 2

* With an election of the DR, the number of adjacencies is reduced from 6 to 3.

Front 3

When checking a routing table, a network technician notices the following entry:O*E2 0.0.0.0/0 [110/1] via 192.168.16.3, 00:20:22, Serial0/0/0What information can be gathered from this output?

Back 3

* This route is a propagated default route.

Front 4

Which command will a network engineer issue to verify the configured hello and dead timer intervals on a point-to-point WAN link between two routers that are running OSPFv2?

Back 4

* show ip ospf interface serial 0/0/0

Front 5

A network engineer suspects that OSPFv3 routers are not forming neighbor adjacencies because there are interface timer mismatches. Which two commands can be issued on the interface of each OSFPv3 router to resolve all timer mismatches? (Choose two.)

Back 5

* no ipv6 ospf hello-interval
* no ipv6 ospf dead-interval

Front 6

Refer to the exhibit. What kind of OSPF authentication has been configured on this interface?

Back 6

* MD5

Front 7

Which two pieces of information are used by the OSPF MD5 algorithm to generate a signature? (Choose two.)

Back 7

* secret key
* OSPF message

Front 8

What is a recommended method of authentication for OSPFv3?

Back 8

* IPsec to secure routing updates

Front 9

A network engineer is troubleshooting convergence and adjacency issues in an OSPFv2 network and has noted that some expected network route entries are not displayed in the routing table. Which two commands will provide additional information about the state of router adjacencies, timer intervals, and the area ID? (Choose two.)

Back 9

* show ip ospf interface
* show ip ospf neighbor

Front 10

When OSPFv2 neighbors are establishing adjacencies, in which state do they elect a DR and BDR router?

Back 10

* Two-Way state

Front 11

A network engineer is troubleshooting an OSPFv2 network and discovers that two routers connected by a point-to-point WAN serial link are not establishing an adjacency. The OSPF routing process, network commands and area ID are all confirmed as correct, and the interfaces are not passive. Testing shows that the cabling is correct, that the link is up, and pings between the interfaces are successful. What is most likely the problem?

Back 11

* The subnet masks on the two connected serial interfaces do not match.

Front 12

A network engineer is troubleshooting OSPFv2 routing issues on two connected routers. Which two requirements to form an adjacency need to be verified? (Choose two.)

Back 12

* Verify that the interfaces that connect the two routers are in the same subnet.
* Verify that the interfaces that connect the two routers are in the same area.

Front 13

Which command is used to verify that OSPF is enabled and also provides a list of the networks that are being advertised by the network?​

Back 13

* show ip protocols

Front 14

A fully converged five router OSPF network has been running successfully for several weeks. All configurations have been saved and no static routes are used. If one router loses power and reboots, what information will be in its routing table after the configuration file is loaded but before OSPF has converged?

Back 14

* Directly connected networks that are operational will be in the routing table.

Front 15

Refer to the exhibit. R1 and R2 are connected to the same LAN segment and are configured to run OSPFv3. They are not forming a neighbor adjacency. What is the cause of the problem?

Back 15

* The timer intervals of R1 and R2 do not match.

Front 16

Refer to the exhibit. Four routers are connected to an Ethernet LAN segment and are configured to run OSPFv3. However, none of the routers are receiving routing updates. What is the cause of the problem?

Back 16

* All of the routers have an OSPFv3 interface priority of 0.

Front 17

Refer to the exhibit. These two routers are configured to run OSPFv3 but they are not forming a neighbor adjacency. What is the cause of the problem?

Back 17

* The routers are configured with the same router ID.

Front 18

During verification or troubleshooting of the OPSFv3 configuration on a router, which three parameters are displayed by the show ipv6 ospf interface command? (Choose three.)

Back 18

* the hello and dead intervals
* the OSPFv3 area that the interface is in
* the process ID that is assigned to the interface

Front 19

The command _____ can be issued on router R2 to verify the propagation of a static default route from R1 to R2.

Back 19

show ipv6 route

Front 20

When IPv4 and OSPFv2 are being used, the command ______ is used to verify that a router has formed an adjacency with its neighboring routers.

Back 20

show ip ospf neighbor

Front 21

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.Which task has to be performed on Router 1 for it to establish an OSPF adjacency with Router 2?

Back 21

* Change the subnet mask of interface FastEthernet 0/0 to 255.255.255.0.