2900502
Frage 1
Frage
Which of the following is true
Antworten
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Entities can have more than one access point at a time
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An entity may change access points
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Access points should not be tied to a specific address
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Access points should have a flat name
Frage 2
Frage
Which of the following are examples of Flat Naming
Antworten
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An auto-increment ID
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A phone number
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A file path
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A hash of file contents used to identify the file
Frage 3
Frage
The Domain Name System is an example of a flat name resolution mechanism
Antworten
- True
- False
Frage 4
Frage
Which of the following is true about the home-based approach for resolving flat names
Antworten
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Entities have home location that keeps track of entity’s current location
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Used in Mobile IP
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The care-of-address stays static but the home address changes as the entity moves
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When communicating with a mobile entity, the sender first checks the last location for a pointer to the home address
Frage 5
Frage
In a recursive name resolution system, name servers communicate directly with each other except for the root name server which also communicates with the client.
Antworten
- True
- False
Frage 6
Frage
Which of the following is not a technique for resolving a flat name
Antworten
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Distributed Hash Tables
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Broadcasting the ID requesting the entity to return its current address
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Leaving pointers when the entity moves
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Polling the address space
Frage 7
Frage
Which of the following is true
Antworten
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Recursive approach has higher performance demand on name servers
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Iterative approach can use result caching more effectively
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Iterative approach has higher communication costs
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In iterative name resolution the client contacts each name server directly at each level
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