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Suppose an instruction takes 1 nanosecond to execute (on average), a page fault takes 20 microseconds of processor time, and it takes 300 microseconds of disk time to read or write a single page. Suppose that on average, 1/2 of the pages are modified. What is the average number of instructions between page faults that would cause the disk to be busy doing page transfers all the time?
why three level architecture had been developed/
What is MySQL? MySQL is a relational database management system which has eleven million installations. It can be used for both Linux and Window. Managing database includes add
What are the advantages of object ID? The main advantages of Object IDs are as below: i) IDs are not changing ii) IDs are completely independent of the changes in data v
Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is: If R has m tuples and S has n tuples then maximum siz
Types of data independence Data independence can be classified into the following two types: Physical Data Independence: This means that for any change made in the physi
what is Nested relational model? Explain with examples.
Ask Write the SQL code that will create the table structure for a table named EMP _1. This table is a subset of the EMPLOYEE table. The basic EMP_1 table structure is summarized in
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
Give some encryption techniques? A) DES B) AES C) Public key encryption
Introductory course and so does not require any fancy coding. I will provide a guidance document to help you in producing the solutions.
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