Note: Considering the Voice Track? Start the journey correctly with Cisco Voice over IP - check it out atLAST WEEK'S ANSWER: Answer: b
Issues: What is the meaning of this parameter? What is the default value and what does the default mean?
Solutions: Specifying the infinity keyword causes the router never to move to the shortest-path tree (SPT); it remains on the shared tree. The default for this value is 0. 0 causes the router to join the SPT immediately upon the first data packet it receives.
More Information: How to Optimize PIM Sparse Mode in a Large IP Multicast DeploymentLAST WEEK'S QUESTION: 7.12.1 You notice the command ip pim spt-threshold infinity used in the multicast configuration on a router in your infrastructure. What does the infinity keyword do?
a. It allows unlimited multicast streams to use the shortest-path tree b. It causes the router never to move to the shortest-path tree c. It causes the router to join the shortest-path tree immediately upon the first data packet it receives d. None of these options are correct
THIS WEEK'S QUESTION:4-13-2. Examine the router output shown in the Exhibit. Which type of area is this router most likely residing in?
a. NSSA b. Totally Stubby c. Stub d. Normal - Backbone e. Normal - Nonbackbone Exhibit 1 R2#show ip ospf database
OSPF Router with ID (172.16.1.2) (Process ID 1)
Router Link States (Area 20)
Link ID ADV Router Age Seq# Checksum Link count172.16.1.2 172.16.1.2 342 0x80000002 0x009185 2
172.16.1.6 172.16.1.6 344 0x80000001 0x00C020 2
Summary Net Link States (Area 20)
Link ID ADV Router Age Seq# Checksum10.10.10.10 172.16.1.6 339 0x80000001 0x008A85
126.96.36.199 172.16.1.6 339 0x80000001 0x000CFC
Summary ASB Link States (Area 20)
Link ID ADV Router Age Seq# Checksum172.16.1.1 172.16.1.6 27 0x80000001 0x00A5D3
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag100.100.100.0 172.16.1.1 32 0x80000001 0x002A8A 0
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