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more and more traffic is being moved to wireless networks of various types write a 500-word paper that discusses the
for this assignment discuss file management which is the concept of how one would physically manage folders and files
read the case study and answer the accompanied questionscase studycongestion control refers to the techniques and
private and corporate information is under attack from an array of resourceswhat are the various threats to information
compare and contrast forward error correction fec and automatic repeat request arq explain various types of fec and
the task is as followgreen foods has 5 canteens and each canteen has a manger and an assistant each staff will be
data marts and data miningdiscuss data marts and data mining in your assignment answer the following questions what are
what is a minimal set of functional dependencies does every set of dependencies have a minimal equivalent set is it
tutorial 3 production test 3 instructionseva lorraine needs to analyze the monthly costs for the chain of lasala
why can we not guarantee that bcnf relation schemas will be produced by dependency-preserving decompositions of
running argument cstep 1 write a program that reads in information for two runners in a race and swaps their
apply algorithm 162a to the relation in exercise 1524 to determine a key for r create a minimal set of dependencies g
suppose we want to create a linear hash file with a file load factor of 07 and a blocking factor of 20 records per
why is accessing a disk block expensive discuss the time components involved in accessing a disk
what are the reasons for having variable-length records what types of separator characters are needed for
what are the typical record-at-a-time operations for accessing a file which of these depend on the current file
discuss the advantages and disadvantages of using a an unordered file b an ordered file and c a static hash file with
discuss the techniques for allowing a hash file to expand and shrink dynamically what are the advantages and
consider a disk with the following characteristics these are not parameters of any particular disk unit block size b
a file has r 20000 student records of fixed length each record has the following fields name 30 bytes ssn 9 bytes
suppose that only 80 percent of the student records from exercise 1728 have a value for phone 85 percent for
suppose that a disk unit has the following parameters seek time s 20 msec rotational delay rd 10 msec block transfer
a parts file with part as the hash key includes records with the following part values 2369 3760 4692 4871 5659 1821
load the records of exercise 1731 into an expandable hash file using linear hashing start with a single disk block
suppose that a static hash file initially has 600 buckets in the primary area and that records are inserted that create