- Home
- Networking
- CCNP Routing 300-101
86.
Process EIGRP 1 is redistributing routes from process OSPF 2. Which of the following
methods can be used to set the metrics of the redistributed routes? (Choose
two.)
- A.Let the metrics default.
- B.Set the metric components using the redistribute command’s metric keyword.
- C.Set the metric components using the default-metric subcommand under router configuration mode.
- D.Set the integer (composite) metric using the redistribute command’s metric keyword.
- Answer & Explanation
- Report
Answer : [B and C]
Explanation :
Explanation :
| Because the metrics come from a different routing protocol than EIGRP, the metric must be set. The metric must be set with five components; EIGRP will then use those components as it would for an internal route. The metric components can be set as listed in the two correct answers, plus using a route map as referenced by the redistribute command. |
87.
Examine the following excerpt from the show ip eigrp topology 10.2.2.0/24 command
on Router R1. Which answer can be verified as definitely true based on this
output?
External data: Originating router is 10.1.1.1 AS number of route is 1 External protocol is OSPF, external metric is 64 Administrator tag is 0 (0x00000000)
- A.R1 is the router that redistributed the route.
- B.R1’s metric to reach subnet 10.2.2.0/24 is 64.
- C.The route was redistributed on a router that has a router ospf 1 command configured.
- D.R1 is redistributing a route to prefix 10.2.2.0/24 into OSPF.
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| This output is the external data section of a detailed view of an EIGRP topology table entry for an external route. This output confirms that this route was redistributed into EIGRP. If R1 were the redistributing router, the output would include the phrase “(this system)”; this example does not include that notation. The output means that on the router that did the redistribution, the route was redistributed from OSPF process 1, and the OSPF metric was 64. R1’s metric is not based on the OSPF metric of the route. |
88.
Router R1 has a connected route for 10.1.1.0/24 off interface Fa0/0. Interface Fa0/0
has been enabled for OSPF because of a router ospf 1 and network 10.1.1.0
0.0.0.255 area 0 command. R1 also has EIGRP configured, with the redistribute
ospf 1 metric 1000 100 10 1 1500 command configured under EIGRP. Which of
the following is true?
- A.R1 will not redistribute 10.1.1.0/24 into EIGRP, because R1 knows it as a connected route and not as an OSPF route.
- B.For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 1 Mbps of bandwidth.
- C.For any OSPF routes redistributed into EIGRP, the metric components include a value equivalent to 100 microseconds of delay.
- D.No subnets of network 10.1.1.0 will be redistributed because of the omission of the subnets parameter
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| The redistribute ospf command will attempt to redistribute OSPF routes and connected routes from interfaces on which OSPF is enabled. The metric components include 1000 kbps (or 1 Mbps), 100 tens-of-microseconds (or 1000 microseconds), 10 for the loading, 1 for the reliability, and 1500 for MTU. The EIGRP version of the redistribute command does not include a subnets option. |
89.
Process OSPF 1 is redistributing routes from process OSPF 2. Which of the following
methods can be used to set the metrics of the redistributed routes? (Choose
two.)
- A.Let the metrics default.
- B.Use each redistributed route’s OSPF metric using the redistribute command’s metric transparent keywords
- C.Set the metric using the default-metric subcommand under router configuration mode.
- D.Redistribution is not allowed between two OSPF processes
- Answer & Explanation
- Report
Answer : [A and C]
Explanation :
Explanation :
| Because the routes come from OSPF and feed into OSPF, the metrics can be set with the usual tools or the metric can default. When taking routes from OSPF into another OSPF process, the default metric is taken from the source route’s OSPF cost. Alternatively, the metric can be set for all routes, regardless of the route source, using the default-metric OSPF subcommand. The metric transparent keywords cannot be used for an OSPF redistribute command. |
90.
Examine the following excerpt from the show ip ospf database asbr-summary command
on Router R1 (RID 1.1.1.1). Which answer can be verified as definitely true
based on this output?
LS Type: Summary Links (AS Boundary Router) Link State ID: 9.9.9.9 (AS Boundary Router address) Advertising Router: 3.3.3.3 LS Seq Number: 8000000D Checksum: 0xE43A Length: 28 Network Mask: /0 TOS: 0 Metric: 100
- A.The output describes the contents of a Type 5 LSA.
- B.3.3.3.3 identifies a router as being the router performing redistribution
- C.R1’s metric for its best route to reach the router with RID 9.9.9.9 is 100.
- D.The router with RID 3.3.3.3’s metric for its best route to reach the router with RID 9.9.9.9 is 100.
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| This command lists the output of Type 4 Summary ASBR LSAs. The LSID identifies the redistributing ASBR (9.9.9.9). The advertising router is the ABR that created and flooded the LSA (3.3.3.3), and the metric is the ABR’s best metric route to reach the ASBR |
|
|
||||||||||||||||||||||||||||
