Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Question: Consider a disk with block size B = 512 bytes. A block pointer is P = 6 bytes long, and a record pointer is PR = 7 bytes long. A file has r = 30,000 EMPLOYEE records of fixed length. Each record has the following fields: Name (30 bytes),Ssn (9 bytes), Department_code (9 bytes), Address (40 bytes), Phone (10 bytes), Birth_date (8 bytes), Sex (1 byte), Job_code (4 bytes), and Salary (4 bytes, real number). An additional byte is used as a deletion marker.
Suppose that the file is not ordered by the key field Ssn and we want to construct a B+-tree access structure (index) on Ssn. Calculate (i) the orders p and pleaf of the B+-tree; (ii) the number of leaf-level blocks needed if blocks are approximately 69% full (rounded up for convenience); (iii) the number of levels needed if internal nodes are also 69% full (rounded up for convenience); (iv) the total number of blocks required by the B+-tree; and (v) the number of block accesses needed to search for and retrieve a record from the file-given its Ssn value-using the B+-tree.
Repeat part g, but for a B-tree rather than for a B+-tree. Compare your results for the B-tree and for the B+-tree.
A company uses public Internet to carry its phone service. The voice data will be encrypted before sending to Internet.
You must first determine what entities want to track. Next determine what attributes are needed for each entity, and what relations exist between these entities. You should draw an E-R diagram to show these relations. Be sure to indicate all keys...
COMP 30005 Communication Server Administration Assignment Help and Solution, Middle East College - Assessment Writing Service
How can integrating DevOps practices influence these activities? Provide an example of where this occurred in the marketplace and what may have contributed
What impact would more open ports have on the ability of your honeypot to attract hackers? Can hackers tell that you have a honeypot running?
Write the type definitions necessary to contain information in a direct file. How many book records can a computer with 1,440,000 characters of file space hold?
Write a static Web page that includes the basic structure of a valid HTML (not XHTML) document. Make sure to include the language attribute of the html element.
How can Alice allocate integers to queues to optimize her chances of winning? What is her chance of winning?
Write and test an HTML document that describes an unordered list of at least five popular books. The bullet for each book must be a small image of book's cover.
The authentication protocol described in the text allows an intruder to send arbitrarily. What weakness does this observation introduce into the system?
Internet-related crime occurs every minute. Cybercriminals steal millions of dollars with near impunity. For everyone that is captured nearly 10,000.
What is the pipeline clock cycle? How long it takes to perform n operations without pipelining using the clock cycle in (a)
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd