Which of the following statements regarding OSPF packets is false?

Which of the following statements regarding OSPF packets is false? Hello packets are used to discover and maintain OSPF neighbor relationships and also can be used to elect DR and BDR on broadcast and NBMA networks. DD packets carry LSA header information to describe link state summary information. Two routers must send Hello packets at […]
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Which of the following statements regarding OSPF multi-instance is false?

Which of the following statements regarding OSPF multi-instance is false? OSPF multi-instance takes effect globally. An interface of a router belongs to only a certain OSPF process. Route exchange between different OSPF processes is similar to route exchange between different routing protocols. Multiple OSPF processes can run on the same router, and they are independent […]
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Which of the following statements regarding the OSPF protocol are true? (Choose all that apply.)

Which of the following statements regarding the OSPF protocol are true? (Choose all that apply.) An OSPF topology has three endpoint types: router node, stub network segment, and transit network segment. A broadcast network segment or a NBMA network segment with at least two routers are a type of transit network segment. The default bandwidth […]
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Which of the following statements regarding the OSPF shortest path tree computation phase is true?

Which of the following statements regarding the OSPF shortest path tree computation phase is true? Link State ID in Network-Summary-LSA is set as the destination network IP address. Net mask in Network-Summary-LSA is set as the network mask of the destination network segment. Metric in Network-Summary-LSA is set as the cost of a route from […]
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Which of the following statements regarding Network-Summary-LSA are true? (Choose all that apply.)

Which of the following statements regarding Network-Summary-LSA are true? (Choose all that apply.) Link State ID in Network-Summary-LSA is set as the destination network IP address. Net mask in Network-Summary-LSA is set as the network mask of the destination network segment. Metric in Network-Summary-LSA is set as the cost of a route from an ABR […]
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Which of the following statements regarding Router-LSA connection type (Type) is false?

Which of the following statements regarding Router-LSA connection type (Type) is false? Point-to-Point describes about the Point-to-Point connection from the local router to a neighboring router. TransNet describes a connection from the local router to a transit network segment. StubNet describes a connection from the local router to a stub network segment. P2MP describes connections […]
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An OSPF neighbor relationship fails to establish and the OSPF error information is displayed as follows. Which of the following is most likely the cause?

An OSPF neighbor relationship fails to establish and the OSPF error information is displayed as follows. Which of the following is most likely the cause? Router IDs conflict. Area IDs are mismatched. Network masks are inconsistent.  Authentication types are inconsistent.
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When a client on PE2 accesses this route, what are the outer and inner labels in the packet transmitted over the carrier network?

On a carrier’s MPLS VPN network, PE1 and PE2 transmit data packets between VPNs. After PE1 receives VPN route 172.16.1.0/24 from a client, it converts the route into a VPNv4 route and distributes label 1027 to the packet. After the packet arrives at PE2, PE2 distributes label 1025 to the packet. When a client on […]
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