Discussion
Home ‣ Networking ‣ EIGRP and OSPF Comments
- Question
Which two of the following commands will place network 10.2.3.0/24 into area 0?
- router eigrp 10
- router ospf 10
- network 10.0.0.0
- network 10.2.3.0 0.0.0.255 area0
- network 10.2.3.0 0.0.0.255 area 0
Options- A. 1 and 4
- B. 2, 4, and 5
- C. 2 and 5
- D. 3 and 4
- Correct Answer
- 2 and 5
ExplanationTo enable OSPF, you must first start OSPF using a Process ID. The number is irrelevant; just choose a number from 1 to 65,535 and you're good to go. After you start the OSPF process, you must configure any network that you want advertised via OSPF using wildcards and the area command. Statement (4) is wrong because there must be a space after the parameter area and before you list the area number. - 1. Your company is running IGRP using an AS of 10. You want to configure EIGRP on the network but want to migrate slowly to EIGRP and don't want to configure redistribution. What command would allow you to migrate over time to EIGRP without configuring redistribution?
Options- A. router eigrp 11
- B. router eigrp 10
- C. router eigrp 10 redistribute igrp
- D. router igrp combine eigrp 10 Discuss
- 2. Which EIGRP information is held in RAM and maintained through the use of Hello and update packets?
- Neighbor table
- STP table
- Topology table
- DUAL table
Options- A. 2 only
- B. 4 only
- C. 1 and 3
- D. All of the above Discuss
- 3. What is the administrative distance of OSPF?
Options- A. 90
- B. 100
- C. 110
- D. 120 Discuss
- 4. Which of the following protocols support VLSM, summarization, and discontiguous networking?
- RIPv1
- IGRP
- EIGRP
- OSPF
- BGP
- RIPv2
Options- A. 1 and 4
- B. 2 and 5
- C. 3, 4 and 6
- D. All of the above Discuss
- 5. Which of the following network types have a designated router and a backup designated router assigned?
- Broadcast
- Point-to-point
- NBMA
- NBMA point-to-point
Options- A. 1, 2 and 3
- B. 1 and 3
- C. 3 and 4
- D. All of the above Discuss
- 6. A network administrator needs to configure a router with a distance-vector protocol that allows classless routing. Which of the following satisfies those requirements?
Options- A. IGRP
- B. OSPF
- C. RIPv1
- D. EIGRP
- E. IS-IS Discuss
- 7. If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?
Options- A. The lowest IP address of any physical interface
- B. The highest IP address of any physical interface
- C. The lowest IP address of any logical interface
- D. The highest IP address of any logical interface Discuss
- 8. Which of the following are true regarding OSPF areas?
- You must have separate loopback interfaces configured in each area.
- The numbers you can assign an area go up to 65,535.
- The backbone area is also called area 0.
- If your design is hierarchical, then you don't need multiple areas.
- All areas must connect to area 0.
Options- A. 1 only
- B. 1 and 2 only
- C. 3 and 4 only
- D. 3, 4 and 5 Discuss
- 9. Which of the following describe the process identifier that is used to run OSPF on a router?
- 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.
Options- A. 1, 2 and 4
- B. 1 and 3
- C. 3 and 5
- D. All of the above Discuss
- 10. Which type of OSPF network will elect a backup designated router?
- Broadcast multi-access
- Non-broadcast multi-access
- Point-to-point
- Broadcast multipoint
Options- A. 1 and 2
- B. 3 and 4
- C. 3 only
- D. None of the above Discuss
EIGRP and OSPF problems
Search Results
Correct Answer: router eigrp 10
Explanation:
If you enable EIGRP on a router with the same autonomous system (AS) number, EIGRP will automatically redistribute IGRP into EIGRP. You will see the IGRP injected routes as external (EX) routes with an EIGRP AD of 170. This is a nice feature that lets you migrate slowly to EIGRP with no extra configuration.
Correct Answer: 1 and 3
Explanation:
EIGRP holds three tables in RAM: neighbor, topology, and routing. The neighbor and topology tables are built and maintained with the use of Hello packets.
Correct Answer: 110
Explanation:
The administrative distance (AD) is a very important parameter in a routing protocol. The lower the AD, the more trusted the route. If you have IGRP and OSPF running, by default IGRP routes would be placed in the routing table because IGRP has a lower AD of 100. OSPF has an AD of 110. RIPv1 and RIPv2 both have an AD of 120, and EIGRP is the lowest, at 90.
Correct Answer: 3, 4 and 6
Explanation:
RIPv1 and IGRP are true distance-vector routing protocols and can't do much, really-except build and maintain routing tables and use a lot of bandwidth! RIPv2, EIGRP, and OSPF build and maintain routing tables, but they also provide classless routing, which allows for VLSM, summarization, and discontiguous networking.
Correct Answer: 1 and 3
Explanation:
No DR is assigned on any type of point-to-point link. No DR/BDR is assigned on the NBMA point-to-multipoint due to the hub/spoke topology. DR and BDR are elected on broadcast and non-broadcast multi-access networks. Frame Relay is a non-Broadcast Multi-Access (NBMA) network by default.
Correct Answer: EIGRP
Explanation:
In this question, we're calling EIGRP just plain old distance vector. EIGRP is an "advanced" distance-vector routing protocol, sometimes called a hybrid routing protocol because it uses the characteristics of both distance-vector and link-state routing protocols.
Correct Answer: The highest IP address of any physical interface
Explanation:
At the moment of OSPF process startup, the highest IP address on any active interface will be the Router ID (RID) of the router. If you have a loopback interface configured (logical interface), then that will override the interface IP address and become the RID of the router automatically.
Correct Answer: 3, 4 and 5
Explanation:
Loopback interfaces are created on a router, and the highest IP address on a loopback (logical) interface becomes the RID of the router but has nothing to do with areas and is optional, so (1) is wrong. The numbers you can create an area with are from 0 to 4,294,967,295 option (2) is wrong. The backbone area is called area 0, so option (3) is correct. All areas must connect to area 0, so option (5) is correct. If you have only one area, it must be called area 0. This leaves option (4), which must be correct; it doesn't make much sense, but it is the best answer.
Correct Answer: 1 and 3
Explanation:
The Process ID for OSPF on a router is only locally significant and you can use the same number on each router, or each router can have a different number-it just doesn't matter. The numbers you can use are from 1 to 65,535. Don't get this confused with area numbers, which can be from 0 to 4.2 billion.
Correct Answer: 1 and 2
Explanation:
DR and BDR are elected on broadcast and non-broadcast multi-access networks. Frame Relay is a non-broadcast multi-access (NBMA) network by default. No DR is assigned on any type of point-to-point link. No DR/BDR is assigned on the NBMA point-to-multipoint due to the hub/spoke topology.
Comments
There are no comments.Programming
Copyright ©CuriousTab. All rights reserved.