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When a database developer uses Hybrid OLAP it seperates the data among relational and specialized storage. In some certain modifications a HOLAP database may store vast amounts of data in its relational tables. Specialized data storage is used to kept data which is less detailed and more aggregate.
What is the use of fork and exec system calls? Fork is a system call by which a new process is formed. Exec is also a system call, which is used after a fork by one of the two
draw 4 bit binary to gray code
What layers are covered under end to end layer connectivity? The layers 4 to 7 of ISO-OSI reference model communicate along with peer entities into the end systems. There is n
What is an expression tree? How an expression is evaluated using an expression tree? Algebraic expressions is as given here a/b+(c-d)e That has an inherent tree-like structure
Name the appliances which are controlled by micro-processor Many household appliances which are microprocessor-controlled do not have operating systems (for example microwave o
Describe a interface 'Human' with methods as walk' and 'speak'. Describe a class 'User' implementing 'Human'. Describe a work() method in User class.Add a class 'Person' also execu
Describe about the role of bitmap indexes to solve aggregation problems? Ans) Bitmaps are very useful in begin schema to join large databases to small databases. Answer queries
Define main memory and auxiliary memory? The memory unit that communicates directly with the cpu is known as main memory [RAM].Devices that give backup storage are known as aux
Q.What is Replacement Policy in cache? When a new block has to be fetched in cache the other block may have to be replaced to make room for new block. Replacement policy determ
a. Explain Intermediate Representation? What are the desirable properties of Intermediate Representation? b. Explain Grammar of a language. Identify the dissimilar classes of gr
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