Questions 1

Questions 1:Which of the following fields in a student file can be used as a primary key?

a. class

b. Social Security Number

c. GPA

d. Major

Question 2:Which of the following is not an advantage of the database approach

a. Elimination of data redundancy

b. Ability of associate deleted data

c. increased security

d. program/data independence

e. all of the above

Question 3:Which of the following contains a complete record of all activity that affected the contents of a database during a certain period of time?

a. report writer

b. query language

c. data manipulation language

d. transaction log

e. none of the above

Question 4:In the DBMS approach, application programs perform the

a. storage function

b. processing functions

c. access control

d. all of the above


Question 5:A set of programs that handle a firm's database responsibilities is called

a. database management system (DBMS)

b. database processing system (DBPS)

c. data management system (DMS)

d. all of above

Question 6:Which is the make given to the database management system which is able to handle full text data, image data, audio and video?

a. full media

b. graphics media

c. multimedia

d. hypertext

Question 7:A record management system

a. can handle many files of information at a time

b. can be used to extract information stored in a computer file

c. always uses a list as its model

d. both a and b

Question 8:A command that lets you change one or more fields in a record is

a. insert

b. modify

c. lookup

d. none of above

Question 9:A transparent DBMS

a. can not hide sensitive information from users

b. keeps its logical structure hidden from users

c. keeps its physical structure hidden from users

d. both b and c

Question 10:A file produced by a spreadsheet

a. is generally stored on disk in an ASCII text fromat

b. can be used as is by the DBMS

c. both a and b

d. none of the above

Answers:1.b 2.e 3.d 4.b 5.d 6.c 7.b 8.b 9.c 10.a

Questions 1:The ascending order of a data hirerchy is:a. bit-byte-record-field-file-databaseb. byte-bit-field-record-file-databasec. bit-byte-field-record-file-databased. bit-byte-file-record-field-database

Question 2:Which of the following is true of a network structure?a. t is a physical representation of the datab. It allows a many-to-many relationshipc. It is conceptually simpled. It will be dominant data base of the future

Question 3:Which of the following is a problem of file management system?a. difficult to updateb. lack of data independencec. data redundancyd. program dependencee. all of above

Question 4:One data dictionery software package is calleda. DB/DC dictionaryb. TOTALc. ACCESSd. Datapace. Data Manager

Question 5:The function of a database is ...a. to check all input datab. to check all spellingc. to collect and organize input datad. to output data

Question 6:What is the language used by most of the DBMSs for helping their users to access data?a. High level language

b. SQLc. Query Languaged. 4GL

Question 7:The model for a record management system might bea. handwritten listb. a Rolodex card filec. a business formd. all of above

Question 8:Primitive operations common to all record management system includea. printb. sortc. look-upd. all of above

Question 9:In a large DBMSa. each user can "see" only a small part of the entire databaseb. each subschema contains every field in the logical schemac. each user can access every subschema

Question 10:Information can be transferred between the DBMS and aa. spreadsheet programb. word processor programc. graphics programd. all of the above

Answers:1. c 2. b 3. e 4. a 5. c 6. c 7. d 8. c 9. a 10. D

Questions 1:Which of the following is not true of the traditional approach to information processing

a. there is common sharing of data among the various applications

b. it is file oriented

c. programs are dependent on the file

d. it is inflexible

e. all of the above are true

Question 2:Which of the following hardware component is the most important to the operation of database management system?

a. high resolution video display

b. printer

c. high speed, large capacity disk

d. plotter

e. mouse

Question 3:Generalized database management system do not retrieve data to meet routine request

a. true

b. false

Question 4:Batch processing is appropriate if

a. large computer system is available

b. only a small computer system is avilbale

c. only a few transactions are involved

d. all of the above


Question 5:Large collection of files are called

a. fields

b. records

c. database

d. sectors

Question 6:Which of the following is not a relational database?

a. dBase IV

b. 4th Dimension

c. FoxPro

d. Reflex

Question 7:In order to use a record management system

a. you need to understand the low level details of how information is stored

b. you need to understand the model the record management system uses

c. bother a and b


Question 8:Sort/Report generators

a. are faster than index/report generators

b. require more disk space than indexed/report generators

c. do not need to sort before generating report

d. both a and b

Question 9:If a piece of data is stored in two places in the database, then

a. storage space is wasted

b. changing the data in one spot will cause data inconsistency

c. in can be more easily accessed

d. both and b

Question 10:An audit trail

a. is used to make backup copies

b. is the recorded history of operations performed on a file

c. can be used to restore lost information

d. none of the aobve

Answers:1.a 2.c 3. b 4.e 5.c 6.d 7.b 8.b 9.d 10.b

Questions 1:The relational database environment has all of the following components except

a. users

b. separate files

c. database

d. query languages

e. database

Question 2:Database management systems are intended to

a. eliminate data redundancy

b. establish relationship among records in different files

c. manage file access

d. maintain data integrity

e. all of the above

Question 3:One approach to standardization storing of data?

a. MIS

b. structured programming

c. CODASYL specification


Question 4:The language used application programs to request data from the DBMS is referred to as the

a. DML

b. DDL

c. query language

d. any of the above


Question 5:The highest level in the hierarchy of data organization is called

a. data bank

b. data base

c. data file

d. data record

Question 6:Choose the RDBMS which supports full fledged client server application development

a. dBase V

b. Oracle 7.1

c. FoxPro 2.1

d. Ingress

Question 7:Report generators are used to

a. store data input by a user

b. retrieve information from files

c. answer queries

d. both b and c

Question 8:A form defined

a. where data is placed on the screen

b. the width of each field

c. both a and b


Question 9:A top-to-bottom relationship among the items in a database is established by a

a. hierarchical schema

b. network schema

c. relational schema

d. all of the above

Question 10:The management information system (MIS) structure with one main computer system is called a

a. hierarchical MIS structure

b. distributed MIS structure

c. centralized MIS structure

d. decentralized MIS structure

Answers:1.b 2.e 3.c 4.a 5.b 6. b 7.d 8.a 9.a 10.c

What does the abbreviation DBMS stand for?

Digital Base Mapping System.

Database Manipulation Software.

Data Borrowing and Movement Software.

Database Management System.

The advantages of Standard Query Language (SQL) include which of the following in relation to GIS databases?

It is widely used.

It is good at handling geographical concepts.

It uses a pseudo-English style of questioning.

It is simple and easy to understand.

Which of the following are characteristics of an RDBMS?

Keys may be unique or have multiple occurrences in the database.

Tables are linked by common data known as keys.

It cannot use SQL.

Queries are possible on individual or groups of tables.

Data are organized in a series of two-dimensional tables each of which contains records for one entity.

What is a 'tuple'?

Another name for a table in an RDBMS.

A row or record in a database table.

Another name for the key linking different tables in a database.

An attribute attached to a record.

Which of the following are issues to be considered by users of large corporate GIS databases?

The need to manage long transactions.

The need for concurrent access and multi-user update.

The need for manual transfer of records to paper.

The need for multiple copies of the same data and subsequent merging after separate updates.

The need for multiple views or different windows into the same databases.

Which of the following are features of the object-oriented approach to databases?

The ability to represent the world in a non-geometric way.

The ability to develop more realistic models of the real world.

The ability to develop database models based on location rather than state and behaviour.

The ability to develop databases using natural language approaches.

The need to split objects into their component parts.

Redundancy is minimised with a computer based database approach.

True

False

The relational database model is based on concepts proposed in the 1960s and 1970s.

True

False

A row in a database can also be called a domain.

True

False

A first step in database creation should be needs analysis.

True

False

In entity attribute modelling a many to many relationship is represented by M:M.

True

False

In a networked web based GIS all communications must go through an internet map server.

True

False

In an OO database approach 'object = attributes + behaviour'.

True

False

In an OO database objects may inherit some or all of the characteristics of other objects.

True

False

1. What does the abbreviation DBMS stand for?

Your

Database Management System.

Answer:

2. The advantages of Standard Query Language (SQL) include which of the following in relation to GIS databases?

Your Answer:

It is widely used.

Correct Answers:

It is good at handling geographical concepts.

It is widely used.

It uses a pseudo-English style of questioning.

3. Which of the following are characteristics of an RDBMS?

Your Answer:Tables are linked by common data known as keys.

It cannot use SQL.

Correct Answers:

Tables are linked by common data known as keys.

Queries are possible on individual or groups of tables.

Data are organized in a series of two-dimensional tables each of which contains records for one entity.

4. What is a 'tuple'?

Your Answer:

(blank)

5. Which of the following are issues to be considered by users of large corporate GIS databases?

Your Answer:

The need for concurrent access and multi-user update.

Correct Answers:

The need for multiple views or different windows into

the same databases.

The need for concurrent access and multi-user

update.

The need to manage long transactions.

6. Which of the following are features of the object-oriented approach to databases?

Your Answer:

The ability to develop more realistic models of the real

world.

The ability to develop database models based on location rather than state and behaviour.

Correct Answers:

The ability to develop more realistic models of the real

world.

The ability to represent the world in a non-geometric

way.

The ability to develop databases using natural language approaches.

7. Redundancy is minimised with a computer based database approach.

Your Answer:

True

8. The relational database model is based on concepts proposed in the 1960s and 1970s.

Your Answer:

True

9. A row in a database can also be called a domain.

Your Answer:

(blank)

10.

A first step in database creation should be needs analysis.

Your Answer:

(blank)

11.

In entity attribute modelling a many to many relationship is represented by M:M.

Your Answer:

True

Correct Answer:

False

12.

In a networked web based GIS all communications must go through an internet map server.

Your Answer:

True

Correct Answer:

False

13.

In an OO database approach 'object = attributes + behaviour'.

Your Answer:

True

Correct Answer:

False

14.

In an OO database objects may inherit some or all of the characteristics of other objects.

Your Answer:

True

1. Which of the following languages is used to define the schema of the database?

DCL

DDL

DML

None of these

The DDL (Data Definition Language) is used to define the schema of the database and relations between entities.

2. A group of associated fields is called a _______.

field

record

table

attribute

Each record contains values for the corresponding attributes. The values of the attributes for a record are interrelated. For example, different cars have different values for the same specifications (length, color, engine capacity, etc.).

3. The security features of the database are set up by the _______.

Online Users

Database

Administrator

Application Programmer

Naive Users

The Database Administrator has the total control of the database and is responsible for the setting up and maintaining the database.

4. The DML is used for: a) Creating tablesb) Retrieving datac) Deleting usersd) Inserting datae) Deleting data

b,d,e

b,c,d

None of these

All of these

The DML (Data Manipulation Language) enables us to access and operate upon the data in the database.

5. Which of the following are the roles of the Database Administrator:a) Managing security issuesb) Storage structure definitionc) Develop application programsd) Take backups of the database

a

a,b,c

a,b,d

All of these


6. Which language is used to permit or prohibit access to a table?

DCL

DDL

DML

All of these

The DDL is used to design the schema of the database, the DML to operate upon the

data and DCL is used to control the access to the database.

7. Which language is used to define the integrity constraints?

DDL

DCL

DML

None of these

The DDL is used to design the schema of the database, the DML to operate upon the data and DCL is used to control the access to the database.

8. The relationship between data is defined in the _______.

view level

logical level

physical level

The logical level of abstraction defines the type of data that is stored in the database and the relationship between them.

9. The database oriented approach _______ the redundancy of data compared to the file oriented approach.

increases

reduces

In the database oriented approach, we store the common data in one table and access it from the required tables. Thus the same data is not stored at multiple places.

10. The database oriented approach does not support multiple views of the same data.

True

False

The database oriented approach supports multiple views of the same data. For example, a clerk may only be able to see his details, whereas the manager can view the details of all the clerks working under him.


b,d,e

b,c,d

None of these

All of these

The DML (Data Manipulation Language) enables us to access and operate upon the data in the database.


DDL

DCL

DML

None of these



DCL

DDL

DML

All of these



table

field

record

attribute



view level

physical level

logical level



reduces

increases



DCL

DDL

DML

None of these


8. The database oriented approach does not support multiple views of the same data.

True

False




Database Administrator

Online Users

Naive Users



a

a,b,c

a,b,d

All of these



Naive Users

Online Users

Database Administrator




a

a,b,c

a,b,d

All of these



DCL

DDL

DML

All of these



DDL

DCL

DML

None of these



increases

reduces



b,d,e

b,c,d

None of these

All of these

The DML (Data Manipulation Language) enables us to access and operate upon the

data in the database.


field

record

attribute

table



DCL

DDL

DML

None of these



physical level

logical level

view level


10. The database oriented approach does not support multiple views of the same

data.

True

False


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Questions 1