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A file has r=20,000 STUDENT records of fixed-length. Each record has the following fields: NAME (30 bytes), SSN (9 bytes), ADDRESS (40 bytes), PHONE (9 bytes), BIRTHDATE (8 bytes), SEX (1 byte), MAJORDEPTCODE (4 bytes), MINORDEPTCODE (4 bytes), CLASSCODE (4 bytes, integer), and DEGREEPROGRAM (3 bytes). An additional byte is used as a deletion marker.
(a) Calculate the record size R in bytes.(b) Calculate the blocking factor bfr and the number of file blocks b assuming anunspanned organization.(c) Assume the file is ordered by SSN; calculate the number of blocks it takes to search for a record given its SSN value by doing a binary search.
Write down a program that uses the paint component method to draw the current value of a JSlider on a subclass of JPanel.
How various bits are required to address a 1M × 8 main memory if Main memory is byte-addressable.
On the basis of this relational database; provide an expression in the relational algebra in order to express each of following queries: Determine the names of all students who have GPA greater than 3.
An editor has 100 KB of program text, 30 KB of initialized data, and 50 KB of BSS (Block started by symbol). The initial stack is 10 KB. assume that three copies of this editor are started simultaneously.
Discuss or describe one or more LAN based attacks (also known as layer 2 attacks or lower layer attacks) or share any additional thoughts you may have on the LAN based attacks.
How can worms and viruses be introduced to a Web site. What is the most common process to ensure client security.
Java program that asks the user to enter two numbers x and b.
Develop a verilog system which utilizes a block code for the error management. The system must accept a 15-word block of 8-bit data words one word at a time.
You are developing a new information system for The Fitness Center, company that has five fitness centers in your metropolitan area, with about 650 members and 30 employees in each location.
The cipher block chaining (CBC) mode has the property that it recovers from errors in cipher text blocks. Show that if an error occurs in the transmission of a block , but all the other blocks are transmitted correctly, after that this affects onl..
Write down a simple Java payroll code. It needs to ask for the employee name, hours worked, and hourly rate.
Sterling Co. wants you to plan a network infrastructure for them. They have five divisions with several hundred users at each division across the United States.
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