The major carriers of network traffic on the Internet are known collectively as the ____________________.
Fill in the blank(s) with the appropriate word(s).
Internet backbone
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Consider a brokerage ?rm database with relations Holdings(AccountId, StockSymbol, CurrentPrice, Quantity) and Balance(AccountId, Balance). Write the triggers for maintaining the correctness of the account balance when stock is bought (a tuple is added to Holdings or Quantity is incremented), sold (a tuple is deleted from Holdings or Quantity is decremented), or a price change occurs. Solve the
problem using both row-level and statement-level triggers. Give an example of a situation when row-level triggers are more appropriate for the above problem and when statement-level triggers are more appropriate. What will be an ideal response?
The total number of items that can be stored on a gigabyte will vary, depending on file size, quality of media, and other factors.
Answer the following statement true (T) or false (F)
A synchronous password token has to operate at the same pace as the receiver. That is, the token has to advance to the next random number at the same time the receiver advances. Because of clock imprecision, the two units will not always be perfectly together; for example, the token’s clock might run 1 second per day slower than the receiver’s. Over time, the accumulated difference can be significant. Suggest a means by which the receiver can detect and compensate for clock drift on the part of the token.
What will be an ideal response?
____________________ is the mathematical process that produces the message digest or "hash."
Fill in the blank(s) with the appropriate word(s).