Answer the following questions about data on external storage in a DBMS: 1. Why does a DBMS
Question:
1. Why does a DBMS store data on external storage?
2. Why are I/O costs important in a DBMS?
3. What is a record id? Given a record's id, how many I/Os are needed to fetch it into main memory?
4. What is the role of the buffer manager in a DBMS? What is the role of the disk space manager? How do these layers interact with the file and access methods layer?
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 70% (10 reviews)
The answer to each question is given below 1 A DBMS stores data on external storage because the quan...View the full answer
Answered By
JAPHETH KOGEI
Hi there. I'm here to assist you to score the highest marks on your assignments and homework. My areas of specialisation are:
Auditing, Financial Accounting, Macroeconomics, Monetary-economics, Business-administration, Advanced-accounting, Corporate Finance, Professional-accounting-ethics, Corporate governance, Financial-risk-analysis, Financial-budgeting, Corporate-social-responsibility, Statistics, Business management, logic, Critical thinking,
So, I look forward to helping you solve your academic problem.
I enjoy teaching and tutoring university and high school students. During my free time, I also read books on motivation, leadership, comedy, emotional intelligence, critical thinking, nature, human nature, innovation, persuasion, performance, negotiations, goals, power, time management, wealth, debates, sales, and finance. Additionally, I am a panellist on an FM radio program on Sunday mornings where we discuss current affairs.
I travel three times a year either to the USA, Europe and around Africa.
As a university student in the USA, I enjoyed interacting with people from different cultures and ethnic groups. Together with friends, we travelled widely in the USA and in Europe (UK, France, Denmark, Germany, Turkey, etc).
So, I look forward to tutoring you. I believe that it will be exciting to meet them.
3.00+
2+ Reviews
10+ Question Solved
Related Book For
Database management systems
ISBN: 978-0072465631
3rd edition
Authors: Raghu Ramakrishan, Johannes Gehrke, Scott Selikoff
Question Posted:
Students also viewed these Computer Sciences questions
-
Answer the following questions about the digital hierarchy in Figure 6.23: a. What is the overhead (number of extra bits) in the DS-1 service? b. What is the overhead (number of extra bits) in the...
-
Answer the following questions about Extendible Hashing: 1. Explain why local depth and global depth are needed. 2. After an insertion that causes the directory size to double, how many buckets have...
-
Answer the following questions about Figure 2.2 when the communication is from Maria to Ann: a. What is the service provided by layer 2 to layer 3 at Marias site? b. What is the service provided by...
-
Discuss the methodology of logical positivism and falsification in questions of a pre history of science and technology studies
-
Describe the circumstances under which a firm may find a merger or acquisition a more favorable market entry strategy than a joint venture with a firm in the local country.
-
What, according to you, are the reasons why safety has often not been managed as effectively as some other business functions? What may be done about this?
-
Heath has \(\$ 495\) in an account. They will collect two paychecks this week, one for \(\$ 150\) and the other for \(\$ 250\). Heath also will pay three bills, one for \(\$ 50\), one for \(\$ 110\),...
-
On January 1, 2017, Harter Company had Accounts Receivable $139,000, Notes Receivable $25,000, and Allowance for Doubtful Accounts $13,200. The note receivable is from Willingham Company. It is a...
-
PLEASE ANSWER ASAP You are a manager at Northern Fibre, which is considering expanding its operations in synthetic fibre manufacturing. Your boss comes into your office, drops a consultant's report...
-
What is happening in your internship or workplace? How are you relating what you have learned in Module 1 to what is happening in your workplace? Reflect on the process of identifying the level of...
-
TechnoBooks.com is in the process of reorganizing its website. A major issue is how to efficiently handle a large number of search results. In a human interaction study, it found that modem users...
-
Consider the following relations: Emp(eid: integer, ename: varchar, sal: integer, age: integer, did: integer) Dept(did: integer, budget: integer, floor: integer, mgr eid: integer) Salaries range from...
-
Soon after Boyds audit report was issued, Boyd learned of certain related party transactions that occurred during the year under audit. These transactions were not disclosed in the notes to the...
-
A cylinder provided with a movable piston contains an ideal gsa at a pressure P 1 , specific volume v 1 and temperature T 1 . The pressure and volume are simultaneously increased so that at every...
-
Question 3.0 Simplify: (1.1) (2.2) (3.3) 4 If the given expression is undefined enter as your answer. Provide your answer below: Content attribution FEEDBACK MORE IN
-
CASE STUDY: DISCORD INVESTMENTS Case Synopsis Discord Investments brought in a global information technology (IT) consulting firm to implement a new client/server network. The company was not going...
-
4 capacitors are in a circuit. A combination of 3 capacitors each with a capacitance of 2 . 5 F are in parallel with each other, and this combination is in series with a 3 . 0 F capacitor. ( 1 )...
-
An adiabatic compressor takes air (assumed as ideal gas) flowing at a rate of 0.3 kg/s from 100 kPa and 22 C to 800 kPa. Assuming constant values of cp 1.020 kj/kg K, cv = 0.733 kJ/kg K, k = 1.391,...
-
Fox News is an environment offering news and reports from all walks of life. How did the culture take the News out of Fox News and made it acceptable for managers to engage in sexual harrassment?
-
Vectors are drawn from the center of a regular n-sided polygon in the plane to the vertices of the polygon. Show that the sum of the vectors is zero.
-
Use Armstrongs axioms to prove the soundness of the union rule. Use the augmentation rule to show that, if , then . Apply the augmentation rule again, using , and then apply the transitivity rule.
-
Use Armstrongs axioms to prove the soundness of the decomposition rule.
-
Use Armstrongs axioms to prove the soundness of the pseudotransitivity rule.
-
Cuk if n = - origin nodes, 0 if na destination node in the origin-destination pair k = (s, n) otherwise,
-
How can an organization gain trust between the business and the development? a. Give teams access to the Program Kanban b. Reduce the amount of Features c. Pair up IT with Epic Owners for all IT...
-
J. Barnes Cycle Company manufactures bicycles. The chart below could possibly be used to illustrate the cost of Total Cost $6,000 $5,000 $4,000 $3,000 $2,000 $1,000 Total Cost $0 100 200 300 400...
Study smarter with the SolutionInn App