HOMEWORK 9.., Basic Computer Science

Assignment Help:
AsBased on Chapter Review Problems from the book.
1

#1. What is meant by data independence? Explain your answer.
#2. Identify two benefits of separating application software from the database management system.
#3. Design a relational database containing information about music composers, their lives, and their compositions. (Avoid redundancies similar to those in Figure 9.4)
#4. Suppose a sequential file contains 50,000 records, and 5 milliseconds are required to interrogate an entry. How long should we expect to wait when retrieving a record from the middle of the file?
#5. The chapter drew parallels between a traditional file index and the file directory system maintained by an operating system. In what ways does an operating system’s file directory differ from a traditional index?


2
When would you choose to implement distributed databases, rather than local databases? Would you go for this design if all your computers were localized in one building? What if they are spread out in your country? What would you recommend when they are spread worldwide? When would you mirror databases and when would you use databases tailored for the local environment?

3
Design a hashed file of words that could be used as a spell checker. What would you use as a hash function? Would your choice of a hash function depend on the language from which the words are chosen? Why should such a file not be stored as a sequential file?
question #Minimum 100 words accepted#

Related Discussions:- HOMEWORK 9..

The skill of Assembly Language, The skill of Assembly Language Programming ...

The skill of Assembly Language Programming (AoA), Randy Hyde''s acclaimed text on assembly language programming, is the most-frequently recommended book on 80x86 assembly language

Explain the probability and non-probability sampling methods, Question 1 W...

Question 1 Write a program to read four floating point numbers and find their sum and average. Question 2 Differentiate string constants and character constants with one exam

Pseudocode, Design a program that will read a file of sales records and pro...

Design a program that will read a file of sales records and produce a sales report. Each record in the file contains a customer’s ID, name, a sales amount, and a validated GST code

Computer programming, outline and explain in detail any 10 application area...

outline and explain in detail any 10 application areas of vb.net

Client - server architecture, Client/ Server Architecture:   As the ca...

Client/ Server Architecture:   As the capacity and power of personal computers improved, the need to share the processing demands between the host server and the client workst

What is Kernel-Level Thread in operating system?, In this technique, the ...

In this technique, the kernel knows about and handles the threads. No runtime system is required in this case. In place of thread table in each process, the kernel has a thread tab

Provide a goms description of the procedure, Question : (a) You want to...

Question : (a) You want to perform the task of sending an e-mail message to three of your friends. You can assume that the email addresses, of the people you want to send the e

Types of search engine, Types of Search Engine:   Some of the basic ca...

Types of Search Engine:   Some of the basic categories of Search engines are :  a. Primary Search Engines: Such search engines use web crawlers or spiders to traverse the w

Explain the important features of creational patterns, Question 1 Explain ...

Question 1 Explain the role of object oriented designers in developing a software system Question 2 What are the four essential elements of design patterns? Explain Question 3

What are the features that bash shell provides, Question 1 What are the fe...

Question 1 What are the features that Bash shell provides? Question 2 Explain Runlevels Question 3 Discuss the following                           1) Links 2) Doma

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd