The document above showcases a series of multiple choice questions with answers provided ranging from previous/last year assignments and exams questions and answers
2. _______ has been enhanced with extensions that support OLAP type
processing and data generation.
[1] SQL
[2] DBMS
[3] DBLC
[4] SDLC.
3. Data stored in the company database must be protected from access by
unauthorized users. Data measures include all of the following EXCEPT….
[1] User authentication
[2] Physical security
[3] Data encryption
[4] Top down authentication
4. The following is NOT a factor that influences the choice of database design
strategies.
[1] The company’s market knowledge
[2] The company’s structure
[3] The company’s scope
[4] The company’s management style
5. What describes the extent to which modules are independent of one another?
[1] Module cohesivity
[2] Module coupling
[3] Module collaboration
[4] Module connectivity
5
, INF3703/201
6. What are the three main types of indexes?
[1] Primary, Secondary, and Mixed index
[2] Primary, Secondary, and Multi-level index
[3] Primary, Secondary, and Maintenance index
[4] Primary, Secondary, and Mandatory index
7. The ____ lock allows concurrent transactions to access the same row as long
as they require the use of different fields within that row.
[1] Table-level
[2] Page-level
[3] Row-level
[4] Field-level
8. The following are the deadlock control techniques.
[1] Prevention, avoidance and uniqueness
[2] Prevention, detection and avoidance
[3] Prevention, isolation and detection
[4] Prevention, time-stamping and avoidance
9. Concurrency control with optimistic methods moves through which phases?
[1] Read, validation and growing
[2] Read, write and growing
[3] Growing, write and shrinking
[4] Validation, write and read
6
, INF3703/201
10. _____________design is the process of selecting the data storage and data
access characteristics of the database.
[1] Time
[2] Network
[3] Logical
[4] Physical
11. In the ________________ stage, data modeling is used to create an abstract
database structure that represents real-world objects in the most realistic way
possible.
[1] Physical design
[2] ER verification
[3] Conceptual design
[4] Logical design
12. What is the first step in converting the ER model from the conceptual design
phase into a set of relations?
[1] Create Relations for Strong Entities
[2] Map multivalued attributes
[3] Create Relations for Weak Entities
[4] Map binary relations
13. A ______ is often used on multidimensional data held in data warehouses.
[1] Bitmap index
[2] B-tree
[3] Pashing algorithm
[4] Primary index
7
, INF3703/201
14. In the following relation, what is the primary key?
RENT_LINE (RENT_NUM*, RENT_LINE_NUM*, RENT_LINE_CHARGE, DATE,
COPY_CODE*).
[1] RENT_NUM
[2] RENT_LINE_NUM
[3] RENT_NUM and RENT_LINE_NUM
[4] RENT_NUM, RENT_LINE_NUM and COPY_CODE
15. ______ is a brief and precise narrative description of a policy, procedure or
principle within a specific organization’s environment.
[1] End-user brief
[2] Operational description
[3] Conceptual model
[4] Business rule
16. Indexes should NOT be used when_______
[1] Tables have low sparsity
[2] Tables have high sparsity
[3] Attributes appear often in the WHERE clause
[4] Using joints
17. If several concurrent transactions are executed over the same data set and the
second transaction updates the database before the first transaction is
finished, the ____ property is violated and the database is no longer consistent.
[1] Atomicity
[2] Consistency
[3] Durability
[4] Isolation
8
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller JayJo. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.46. You're not tied to anything after your purchase.