What is the meaning of “Atomic” with regards to atomic transactions in relational databases? a. A correctly executed transaction is not susceptible to system failures. b. Concurrent execution of transactions does not lead to incorrect results. c. Execution of a transaction does not invalidate the data. d. a) A transaction is either executed completely or not at all.
What is the meaning of “Atomic” with regards to atomic transactions in relational
| a. |
A correctly executed transaction is not susceptible to system failures.
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| b. |
Concurrent execution of transactions does not lead to incorrect results.
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| c. |
Execution of a transaction does not invalidate the data.
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| d. |
a) A transaction is either executed completely or not at all.
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How does taxation handle the issue of spider traps while computing PageRank?
| a. |
a) It allows a random surfer to teleport to a random web page with a certain probability.
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| b. |
It prevents a surfer from going to any web page that is part of a spider trap.
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| c. |
It repositions a random surfer to the starting web page when it visits a web page that is part of a spider trap.
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| d. |
None of the above |
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