OSPFv2 and OSPFv3 Configuration Quiz

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Questions and Answers

What is the router ID configured on R1 for OSPFv2?

3.3.3.3

0.0.0.1

1.1.1.1 (correct)

2.2.2.2

Which command will provide information about the currently configured OSPFv2 operation on a router?

show ip interfaces

show ip neighbor

show ip protocols (correct)

show ip route

What area does the network 192.168.10.0 belong to in OSPFv2 configuration on R1?

Area 2

Area 1

Area 3

Area 0 (correct)

Which router is likely to generate Type 3 LSAs in a multiarea OSPFv2 configuration?

Area Border Routers only Signup and view all the answers

To verify connectivity to remote devices in specific areas, which command is essential to issue from R1?

ping Signup and view all the answers

What is the correct router ID configuration for router RB in the OSPFv3 setup?

2.2.2.2 Signup and view all the answers

Which command is used to verify OSPFv3 neighbor relationships?

show ipv6 ospf neighbor Signup and view all the answers

In OSPFv3, which area does Router RC's interface G0/1 belong to?

Area 2 Signup and view all the answers

What step is necessary before configuring OSPFv3 on any router?

Enable IPv6 routing. Signup and view all the answers

Which of the following is a valid process ID for OSPFv3 configuration on RA?

1 Signup and view all the answers

What OSPFv3 area is router RA connected to through its G0/1 interface?

Area 1 Signup and view all the answers

Which network type does OSPF define that solely interconnects two routers?

Point-to-point Signup and view all the answers

Which command would you use to view the OSPFv3 routing table?

ipv6 route Signup and view all the answers

What is the primary role of the Designated Router (DR) in an OSPF network?

To manage the adjacencies and flooding of LSAs Signup and view all the answers

Which statement is true regarding the role of the Backup Designated Router (BDR)?

The BDR takes over if the DR fails Signup and view all the answers

In a network where R3 is elected as DR and R2 as BDR, what will R1 be classified as?

DROTHER Signup and view all the answers

Which command is used to verify the roles of OSPFv2 routers?

show ip ospf interface Signup and view all the answers

What factor determines the DR and BDR election process in OSPF?

The router ID of the routers Signup and view all the answers

If R3's router ID is 3.3.3.3 and R2's is 2.2.2.2, which router would be elected as the BDR?

R2 Signup and view all the answers

What is a characteristic of Nonbroadcast Multiaccess (NBMA) networks?

They require specific addressing to communicate Signup and view all the answers

Which of the following statements is correct regarding DROTHER routers?

DROTHER routers only listen to LSAs but do not send them Signup and view all the answers

What is the OSPF priority setting for router RA?

200 Signup and view all the answers

Which command can be used to reset the OSPF process on a router?

clear ip ospf process Signup and view all the answers

Which router is expected to become the DR if priorities are set as specified?

RA Signup and view all the answers

What command must R2 execute to propagate a default static route in OSPF?

ip route 0.0.0.0 0.0.0.0 Signup and view all the answers

What is the default OSPF priority of router RC?

1 Signup and view all the answers

After restoring RB's Gigabit Ethernet interface, what needs to be monitored?

New DR/BDR elections Signup and view all the answers

What command enables an edge router to be a source of the default route information?

default-information originate Signup and view all the answers

In OSPFv3, how is a default static route configured?

ipv6 route ::/0 {ipv6-address|exit-intf} Signup and view all the answers

What is the primary function of an Area Border Router (ABR)?

To summarize and distribute routing information between areas Signup and view all the answers

Which router is responsible for importing external network information into an OSPF network?

Autonomous System Boundary Router (ASBR) Signup and view all the answers

What command is used to verify OSPF neighbors in a multiarea OSPFv2 configuration?

show ip ospf neighbor Signup and view all the answers

In the provided configurations, which area is denoted as the backbone area?

Area 0 Signup and view all the answers

What is route redistribution in OSPF used for?

To share routing information between different routing protocols Signup and view all the answers

Which command would be used to summarize OSPF routing information from multiple areas at an ABR?

aggregate-address Signup and view all the answers

In OSPF, what is the purpose of the router-id?

To uniquely identify each router in an OSPF domain Signup and view all the answers

Which statement describes OSPFv3's support for IPv6?

OSPFv3 uses the same commands as OSPFv2 Signup and view all the answers

What action must be taken to ensure that OSPF adjacency is maintained between R1 and R2?

Set the hello and dead timers to the same values on both routers. Signup and view all the answers

In the context of the addressing table, which interface of R2 is configured for area 0?

S0/0/0 Signup and view all the answers

What command is used to set the OSPF hello interval on R1?

ip ospf hello-interval 15 Signup and view all the answers

Which command is NOT used for verifying multiarea OSPFv2 operation?

ping Signup and view all the answers

Why must the bandwidth on R1's Serial 0/0/0 interface be adjusted?

To influence OSPF route calculations using the metric. Signup and view all the answers

What is the expected outcome after tracing the path from PC1 to the web server located at 64.100.1.2?

The path will be routed through R2 initially but will switch to R3 after bandwidth adjustment. Signup and view all the answers

What must be verified after modifying the OSPF settings on R1?

All PCs can ping each other and the web server. Signup and view all the answers

Study Notes

Networking Protocols Lab

This lab focuses on networking protocols, specifically Multiarea OSPFv2 and OSPFv3.
Multiarea OSPF divides large networks into smaller areas to reduce CPU load and database size.
The backbone area (Area 0) is central, connecting other areas.
Routers within an area communicate with each other.
OSPF is hierarchical, with a two-layer area structure for large networks.
Regular (non-backbone) areas connect to the backbone area.
OSPF enforces a two-layer architecture.
Traffic between different areas goes through the backbone area.
Router configuration guidelines often limit the number of routers per area and neighbors per router.

Course Plan

The course is titled "networks protocols lab" and is part of the "Computer and networks engineering" department.
The course code is 30106432.
It has one credit hour.
The prerequisite is course 30106431.
The instructor is Dr. Belal_ayyoub.
There are office hours, including days, times, and room numbers.
The class timetable for the week of week 6 is given.

Lab 5: Multiarea OSPFv2 and OSPFv3

Multiarea OSPF is used to divide large OSPF networks to reduce the workload on routers.
Too many routers in one area increase the load on the CPU and the link-state database.
It partitions a single area into multiple areas, with Area 0 functioning as the backbone.
Hierarchical design (two-layer area hierarchy) is used for multiarea OSPF implementation.
This includes backbone and regular areas.
Regular areas can be of different subtypes (standard, stub, totally stubby, and NSSA).
Subtypes are not in this particular course.
OSPF enforces this rigid two-layer area hierarchy.
All non-backbone areas connect directly to the backbone area (Area 0).
Inter-area traffic travels through the backbone area.

Types of OSPF Routers

Internal routers have all interfaces in the same area.
Backbone routers reside in Area 0.
Area Border Routers (ABRs) connect multiple areas.
They maintain separate LSDBs for each connected area and route between areas.
Autonomous System Boundary Routers (ASBRs) connect to external networks.
ASBRs connect different routing domains like EIGRP or other OSPF networks.
ASBRs can import and export routing information.
A static route can be redistributed as an external route.

Configuring Multiarea OSPFv2/v3

Instructions on configuring various features and the commands for setting up OSPF networking.
Examples, like different commands for OSPFv2 and OSPFv3 router configurations.
Network information, such as IP addresses, subnet masks, and OSPF areas of the routers, is given.

Addressing Table

The given table lists the IP addresses, subnet masks, OSPFv2 areas, and other important information for different devices (like R1, R2, R3, etc).
It’s essential for network configuration.

Objectives

The objectives for each part of the lab are listed.
Configuration of Multiarea OSPFv2 and OSPFv3 configurations.
Verification and analysis of the OSPFv2 and OSPFv3 configuration.

Reflection Questions

These questions guide the students in understanding the concepts of multiarea OSPF.
The questions help determine types of routers based on their roles in OSPF networks.
Other questions help students understand how routers and areas interact and their role in the process of forwarding traffic.

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Description

Test your knowledge on OSPFv2 and OSPFv3 configuration with this quiz. You'll answer questions about router IDs, network areas, commands for verification, and the OSPF process. Perfect for network engineers and students studying networking protocols.