Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Solved Assignments
Asked Questions
Answered Questions
the spiral model of software developmentcontains project risks evaluation during every iteration
what are the three generic phases of software engineeringa definitionb developmentc
write and test a simple perl program on the linux platform you may use any linux system you wish including the suse linux installed in the
fast stands for -fast- facilitated application specification
which phase is not available in software life cycleabstraction is the only phase which in not available in software life
explain the difference between the three storage types - volatile non volatile and stable ans volatile
explain pipelining ans in order to describe pipelining in simple terms think of it as breaking down processor functions into
explain the rules for creating a labelled precedence graph for testing view serializability ans a schedule
the level at which the software uses scarce resourcesefficiency
illustrate the statement projection operation distributes over the union operation give an example ans pile1 cup e2 pile1 cup
define and differentiate between ordered indexing and hashingans ordered indexing to gain fast random access to records in a file we can make of an
describe sequential file organization explain the rules for i inserting a new record ii deleting an existing
the most important feature of spiral model is risk management is the important feature of spiral
what are the problems if one were not to normalize when do these problems surface ans database
define the division operation of relational algebralet r be a relation comprising attributes a1apap1an and s comprising attributes ap1an def
what is completeness constraint on generalization define the variation between total and partial design constraint give an example
explain the b tree b tree is a type of tree which denotes sorted data in a way that permits for efficient insertion retrieval and removal of records
define assertions in sqla an assertion is a predicate that is expressing a condition we wish the database to always satisfy b domain constraints
what is data dictionarya data dictionary is a reserved space in a database that is employed to store information about the database itselfa data
views in relational algebra 1 basic expression contains either a a relation in the databaseb a constant relation2 general expressions
what are the costs to be considered when a transaction has to be rolled back when recovering from deadlock ans a few
compare wait-die deadlock prevention scheme with wait-wound scheme ans wait-die scheme a based upon a nonpreemptive technique b if
explain the acid properties of a transactionans acid properties are a significant concept for databases the acid stands for atomicity consistency
compare the nested-loop join and block-nested loop joinans nested loop join - it is costly as worst case cost no of block accesses needed is nr
villa la fourche ltd is a small family business situated in the east coast of mauritius more precisely trou deau douce the compound comprises