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The problem of managing the blocks of an external data fi le indexed by either a B-tree or an external hashing scheme is similar to that of managing memory for internal structures. When an external structure such as a data fi le needs more memory (for example, to insert a new record), it gets a new block from a free list that the system manages. That is, if the fi le contains n blocks, the system can allocate to it an ( n + 1) th block. When the fi le no longer needs a block, you can deallocate it and return it to the system. The complication in the management of external storage is that a block allocated to a fi le may have available space interspersed with data. For example, after you have removed a record from the middle of a data fi le, the block that contained that record will have space available for at least one record. Therefore, you must be able to keep track of blocks that have space available for one or more records as well as recognize when blocks are completely empty (so that you can return them to the system). Assuming the existence of allocate Block and return Block functions that get empty blocks from and return empty blocks to the system, write pseudo code implementations of the following external memory-management functions:
What data structure is appropriate to support these operations? You may assume that you can distinguish slots of a block that do not contain a record from those that do. You can make this distinction either by having a convention for null values within a record or by adding an empty/full flag.
Use any built in functions for finding the calculations in this assignment.
Use the equation pi/4 = tan^-1(1/2) + tan^-1(1/3) to evaluate the value of pi. Howmany iterations does it require? Comment on the difference. Submit matlab code.
Suppose that an array contains angles in degrees. Write a function that converts any angles outside of the interval [0,360] to an equivalent angle in that interval. For example, an angle of 380.5 degrees should be converted to 20.5 degrees.
Using enterprise architecture to assist in the decision-making process, write a 1500 words paper in which you do the following:Determine activities that you believe would be appropriate for outsourcing.
Why would the other architectures not be a good choice?
Advancements in technology have certainly made our lives easier over the last twenty years. They've also changed the nature of how many of us do our jobs. A great example is right here in this course...professors can teach from home!
Evaluate the level of impact of IT / enterprise architecture on information management (e.g., the flow of information throughout the company / organization, etc.) within a company or industry of your choice
Write some code that assigns True to a variable duplicates if there are two adjacent elements in the list that have the same value, but that otherwise assigns False to duplicates otherwise. In order to accomplish this, you may, if you wish, use o..
Who was the first president of Kenya? Explain his town of origin.
Why do the UNION, INTERSECTION, and DIFFERENCE operations require that the relations on which they are applied be union compatible?
How do you code an interactive hangman game using the string method
Explain how to determine the process state and what are the states a process can be in. (Hint: use the man pages! You may have to do some cross referencing
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