Why should UFIDs be unique across all possible file systems? How is uniqueness for UFIDs ensured?

What will be an ideal response?


Uniqueness is important because servers that may be attached to different networks may eventually be connected, e.g. by an internetwork, or because a file group is moved from one server to another. UFIDs can be made unique by including the address of the host that creates them and a logical clock that is increased whenever a UFID is created. Note that the host address is included only for uniqueness, not for addressing purposes (although it might subsequently be used as a hint to the location of a file).

Computer Science & Information Technology

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In the accompanying figure, item 2 is pointing to the ____.

A. file's hidden properties B. file tags and ratings C. libraries D. details pane

Computer Science & Information Technology

Identify the letter of the choice that best matches the phrase or definition.

A. Built-in function that calculates the payments for a loan based on constant payments and a constant interest rate B. Class that provides standard math procedures required for mathematical calculations C. Math class method that returns the absolute value of a number D. Math class method that will raise a number to a power E. Method of the Math class that returns the smaller of two numbers F. Math class constant that is the natural exponent

Computer Science & Information Technology

You can change the ____ of the rulers by pointing to the intersection of the rulers and dragging down and to the right.

a. origin b. scale c. dimensions d. size

Computer Science & Information Technology

EX Case 7-1Harry is hiking part of the Appalachian Trail this summer and using Excel to keep track of the miles he travels each day. Each time he reaches a town, he uses a public computer to update a worksheet that he stores on Windows Live SkyDrive. To send a worksheet via SkyDrive, Harry would click the ____ tab, then click Save & Send.

A. File B. Home C. Insert D. View

Computer Science & Information Technology