Messages
Proposals
Get Urgent Writing Help In Your Essays, Assignments, Homeworks, Dissertation, Thesis Or Coursework & Achieve A+ Grades.
Privacy Guaranteed - 100% Plagiarism Free Writing - Free Turnitin Report - Professional And Experienced Writers - 24/7 Online Support
ATTEMPT ALL QUESTIONS
a) Why the top three layers in the reference architecture for distributed database systems are often referred to as site-independent schemas? Define physical image of a global relation at a site. 5 marks
b) Comment on the different types of dependency for the bottom layers in the reference architecture of DDBMS. Explain the role of local mapping schema towards the integration of heterogeneous multi-site databases in this context. 5marks
c) Differentiate between transaction recovery and crash recovery. 5 marks
d) Briefly explain the objectives of distributed transaction management. 5 marks
e) Write down the responsibilities of transaction manager and transaction coordinator. 5 marks
f) Define distributed serializability. How is it ensured in a DDBMS? 5 marks
g) Compare and contrast Pessimistic and Optimistic Concurrency Control techniques. 5 marks
h) Describe quorum-based protocol for distributed concurrency control. 5 marks
2) Discuss how distributed systems are used in organizations 10 marks
3) Discuss the techniques used to facilitate distributed query processing and Optimization. 10 marks
| Writer | Writer Name | Amount | Client Comments & Rating |
|---|---|---|---|
ONLINE |
Instant Homework Helper |
$36 |
She helped me in last minute in a very reasonable price. She is a lifesaver, I got A+ grade in my homework, I will surely hire her again for my next assignments, Thumbs Up! |
Custom Original Solution And Get A+ Grades
Custom Original Solution And Get A+ Grades
Custom Original Solution And Get A+ Grades
| Writer | Writer Name | Offer | Chat |
|---|---|---|---|
ONLINE |
Assignment HubI have read and understood all your initial requirements, and I am very professional in this task. |
$20 | Chat With Writer |
ONLINE |
Innovative WriterI have read and understood all your initial requirements, and I am very professional in this task. |
$31 | Chat With Writer |
ONLINE |
Finance MasterI will cover all the points which you have mentioned in your project details. |
$29 | Chat With Writer |
ONLINE |
Accounting & Finance SpecialistHello, I an ranked top 10 freelancers in academic and contents writing. I can write and updated your personal statement with great quality and free of plagiarism |
$43 | Chat With Writer |
ONLINE |
Essay Writing HelpI have read and understood all your initial requirements, and I am very professional in this task. |
$23 | Chat With Writer |
ONLINE |
Professional Coursework HelpGive me a chance, i will do this with my best efforts |
$25 | Chat With Writer |
Let our expert academic writers to help you in achieving a+ grades in your homework, assignment, quiz or exam.