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W11: CP06 Assessment (ITNW1413)

Quiz by Bryan N. Manalaotao

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10 questions
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  • Q1
    Scenario: AAA is configuring OSPF on Router A and needs to assign it to Area 0. She configures the following: R1(config)# router ospf 1 R1(config-router)# network 10.1.1.0 0.0.0.255 area 0 AAA asks BBB for help, but BBB notices that the router's interfaces connected to the 172.16.0.0/16 network are not included in the OSPF configuration. Question: What command should AAA add to ensure that OSPF covers the 172.16.0.0/16 network?
    R1(config-router)# network 172.16.0.0 0.0.0.0 area 0
    R1(config-router)# network 172.16.0.0 0.0.0.255 area 0
    R1(config-router)# network 172.16.0.0 255.255.0.0 area 0
    R1(config-router)# network 172.16.0.0 0.0.255.255 area 0
    60s
  • Q2
    Scenario: Just like in Taylor Swift's song "All Too Well", where she sings "Maybe we got lost in translation, maybe I asked for too much," sometimes routers in a network can get "lost" and fail to form OSPF neighbor relationships. BBB is feeling the same kind of frustration when her OSPF routers aren’t forming an adjacency. Question: What could be causing BBB's routers to feel "lost in translation" and fail to form an OSPF neighbor adjacency?
    Matched Hello and Dead timers
    Matched subnet masks
    Incorrect access lists
    Mismatched area ID
    60s
  • Q3
    Scenario: CCC has just completed the OSPF configuration on Router C and wants to ensure that the configuration is correct. AAA suggests using the show ip protocols and show ip ospf neighbor commands. Question: What information will CCC find using these commands, and why are they important for verifying OSPF?
    The status of all physical and virtual interfaces; to verify interface connectivity.
    A summary of all routes learned via EIGRP; to troubleshoot connectivity issues.
    OSPF process ID, networks being advertised, and routing information; to verify that OSPF is correctly configured.
    A list of MAC addresses assigned to each switch interface; to check if interfaces are correctly configured.
    60s
  • Q4
    Scenario: AAA is setting up OSPF for Router A, and she needs to configure it to include the network 192.168.1.0/24. BBB notices that AAA is unsure about the correct wildcard mask. Question: What wildcard mask should AAA use for the network 192.168.1.0/24, and why?
    255.255.0.0 because it is a class C network.
    0.0.0.255 because the wildcard mask is the inverse of the subnet mask.
    255.255.255.0 because it's a /24 subnet mask.
    0.0.255.255 because it is a class B network.
    60s
  • Q5
    What is checked during OSPF network discovery to establish neighbors?
    OSPF area
    All of the above
    HELLO and DEAD timers
    Subnet mask
    40s
  • Q6
    How is the best path selected in OSPF?
    Random selection
    Longest path first
    Shortest path first (Dijkstra algorithm)
    Round-robin selection
    40s
  • Q7
    What is the purpose of a Wildcard Mask in OSPF?
    To configure OSPF areas
    To prevent OSPF network discovery
    To hide the router's identity
    To indicate which part of the IP address will be examined
    40s
  • Q8
    How is a Wildcard Mask related to a Subnet Mask in OSPF?
    Wildcard Mask is not used in OSPF
    Subnet Mask is not used in OSPF
    Wildcard Mask is the inverted of Subnet Mask
    They are the same thing
    40s
  • Q9
    How should you configure OSPF for a directly connected network?
    Use the "ip ospf" command
    Use the "network" statement in OSPF configuration
    Use the "ospf network" command
    Use the "configure ospf" command
    40s
  • Q10
    Does the Process ID number need to match on all routers in the OSPF network?
    No
    Yes
    Only for backbone routers
    Only in specific areas
    40s

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