ibm db2 test 302

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Nedle 11 listopadu 2012

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Vyberte jednu

odpov

a. db2 terminate

b. db2 connect finalize

c. db2 connect kill

d. db2 connect end

Assuming that you are currently connected to a DB2 database, which of the following

commands will terminate your connection?

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odpov

a. IBM Data Studio is based on Eclipse

b. IBM Data Studio IDE package allows for shell-sharing

c. IBM Data Studio can be used to develop stored procedures, UDFs and SQL or

XQuery scripts

d. IBM Data Studio is free, open source software

Which of the following is false about IBM Data Studio?

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Vyberte jednu

odpov

a. Oliver, Rodney, Tom

b. Tom

c. Oliver, Rodney, Tom, Vincenzo

d. Rodney, Tom

Given the following table:

GUESTS

------------------

name age

----- -----

Jenny 34

Rodney 36

Oliver 21

Angie 42

Tom 28

Vincenzo 25

What names would be displayed as the result of the following SQL query

SELECT name FROM GUESTS WHERE name LIKE '%o_'

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Vyberte jednu

odpov

a. DB2 Command Line Processor

b. DB2 Control Center

c. DB2 Command Line Advisor

d. DB2 Health Center

Which of the following tools would you use if you need to execute SQL statements against a DB2 database

from the command line?

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Vyberte jednu a. It allows definition of a policy to guarantee quality of service to applications.

Which of the following is a characteristic of High Availability?

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odpov b. . It allows high performance of a DB2 server by distributing workload across several

machine.

c. It allows compression of data.

d. It allows replication of data to a standby server that can take over in case of failure.

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odpov

a. There is a conflict if you attempt to create a table space in Database A with a table

space name that has already been used in the same tablespace

b. A TCPIP port uniquely identifies a DB2 instance

c. There is a conflict if you attempt to create a database in instance B with a

database name that has already been used in instance A

d. There can be more thah one instance running at given time

Which of the following is false about the DB2 environment?

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odpov

a. Automatic storage is a function of DB2 allows tables to be backed up automatically

on a set schedule

b. Automatic Storage can be used to automatically reorganize the data on the

physical media in order to improve performance

c. Automatic storage simplifies storage management by allowing you to specifystorage paths where the database manager can place table space data

d. Automatic storage is an option that allows transactions that are written to the

database to be automatically committed

What functionality does automatic storage provide?

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Vyberte jednu

odpov

a. The statement will only succeed if every record in the EMPLOYEES table has a

null value in the WORKDEPT column

b. The statement will only succeed if the data retrieved by the subquery does not

Given the following UPDATE statement:

UPDATE employees SET workdept =

(SELECT deptno FROM department WHERE deptno = 'A01')

WHERE workdept IS NULL

Which of the following describes the result if this statement is executed?

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contain multiple records

c. The statement will fail because an UPDATE statement cannot contain a subquery

d. The statement will succeed if the data retrieved by the subquery contains multiple

records, only the first record will be used to perform the update

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odpov

a. DB2 Command Editor

b. All of the Above

c. DB2 CLP

d. IBM Data Studio

Which of the following tools can be used to develop stored procedures?

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Vyberte jednu

odpov

a. REVOKE ACCESS FROM USER tom ON sample

b. REVOKE CONNECT ON sample FROM USER tom

c. REVOKE ACCESS FROM USER tom ON DATABASE

d. REVOKE CONNECT ON DATABASE FROM USER tom

Which of the following statements revoke access to SAMPLE database from user TOM?

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odpov

a. B. One-to-one, and many-to-many are relationships you can represent in an ERD

b. D. In a ERD, an Entity is represented with a rectangle

c. A. Attributes in the relational model map to rows in a relational database

d. C. Entities in the relational model map to tables in a relational database

Which of the following statements is false?

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Vyberte jednu

odpov

a. ADD

b. INSERT

Given the options below, which of the following statements can add records to a table?

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c. ADDREC

d. ADDRECORD

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Vyberte jednu

odpov

a. DEFAULT.table_1

b. SYSIBM.table_1

c. DB2INST1.table_1

d. You get an error because your query is ambiguous, as the table schema is not

specified

Consider the following scenario. You have 3 tables with the same name (TABLE_1) under 3 different schemas

(SYSIBM, DEFAULT and DB2INST1). You are connected to a DB2 database in your Linux server as db2inst1

and issue the following statement:

SELECT * FROM table_1

Which table will you be selecting data from:

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Vyberte jednu

odpov

a. Database

b. Comma delimited data files

c. Spreadsheets

d. Text files

What data storage method is the most optimal solution for the company?

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odpov

a. SYSCATSPACE table space

b. IBMDEFAULT buffer pool

c. TEMPSPACE1 table spaced. All of the above

Which of the following is created when a DB2 database is created?

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Vyberte jednu

If circular logging is used, the following types of backup are allowed:

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odpov a. Offline full backup

b. Online full backup

c. Offline incremental backup

d. Online incremental backup

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Oznate

vechny

sprvn

odpovdi

a. Column name

b. NOT NULL constraint

c. Table name

d. Column data type

e. Default constraint

Which two are optional and do not have to be specified when creating a table?


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odpov

a. XMLEXISTS

b. XMLCAST

c. EXISTS

d. XMLQUERY

Which of the following is NOT a SQL/XML function in DB2 9.7?

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odpov

a. TABLEXML

b. XMLTABLE

c. XML2TABLE

d. XML2RELATIONAL

In DB2 9.7, which of the following functions can be used to create tables from XML documents?

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Body: 1Which of the following programming languages can be used to develop applications that require access to a

DB2 database?

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Vyberte jednu

odpov

a. PHP

b. Java

c. All of the above

d. C#

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Vyberte jednu

odpov

a. Columns must be designated a specific data type

b. Columns are also known as records

c. Columns are where the individual pieces of information are stored for each record

d. Each column consists of one or more records

Which of the following is true about columns?

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odpov

a. It has a 2GB database size limit

b. It is free to develop, deploy and distribute

c. The C in the name stands for the C language

d. All of the above

Which of the following is a characteristic of DB2 Express-C?


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odpov

a. DROP TABLE users

b. DELETE TABLE users

c. REMOVE TABLE users

d. ALTER TABLE users

Which of the following SQL statements can be used to remove data from table "users":

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Vyberte jednu

odpov

a. None of the above

What is the default isolation level in DB2 9.7 for Linux, Unix and Windows for new databases?

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b. Cursor Stability with Currently Committed semantics

c. Cursor Stability

d. Uncommitted Read

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odpov

a. Name Domain = (Set of all Possible Names)

b. Manager Domain = (N)

c. ID Domain = (1, 2, 3)

d. Extension Doman = (53412)

Which of the following options best describes a domain found in the table below?

CREATE TABLE EMPLOYEE (

ID INTEGER NOT NULL,

NAME VARCHAR(30) NOT NULL,

EXTENSION INTEGER NOT NULL,

MANAGER VARCHAR(30) NOT NULL

PRIMARY KEY (ID))

TERMINATE

ID NAME EXTENSION MANAGER

1 John S 53412 Y

2 Susan P 54123 N

3 Jennifer L 51234 N

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odpov

a. If instance 'A' is down, databases in this instance are inaccessible

b. If instance 'A' crashes, no other instance running in the system will work either

c. Within an instance you can only create one and only one database

d. Instances are related between each other through the dbm cfg

Which of the following is true about DB2 instances?

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odpov

a. EXEC CONNECT TO SAMPLE

b. EXEC DB2 CONNECT TO DATABASE SAMPLE

c. DB2 CONNECT TO DB SAMPLE

d. EXEC SQL CONNECT TO SAMPLE

In embedded SQL, which of the following is an example of how to establish a connection to the SAMPLE

database in DB2?

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Vyberte jednu

odpov

a. INSERT

b. IMPORT

c. LOAD

d. CLP

You are assigned the task of importing a large amount of data into a DB2 database. Considering you must log

all the information about the rows imported and that you want to perform the load as fast as possible, which is

the best tool to use for this job?

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odpov

a. Primary keys can contain NULLs.

b. Primary keys uniquely identify each tuple of the relation.

c. A relation can have multiple foreign keys.

d. Primary keys are defined by a subset of attributes of a relation.

Which of the following is NOT true about keys in the relational model?

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odpov

a. A database can only have one Buffer Pool.

b. The size of a Buffer Pool can be automatically resized by STMM

c. Buffer Pools work as a cache, storing data that is read from table spaces.

d. Pages in a Buffer Pool can be 4k, 8k, 16k and 32k in size.

Which of the following statements is FALSE regarding Buffer Pools?

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odpov

a. SQL/XML is a communication protocol for DB2 databases.

b. SQL/XML is a language that provides various publishing functions to transform

XML data into relational form and vice versa.

c. SQL/XML is an extension to SQL standard and provides various publishing

functions to transform XML data into relational form and vice versa.

d. SQL/XML is part of the XQuery standard and provides various publishing functions

to transform XML data into relational form and vice versa.

What is SQL/XML?

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odpov

a. Pointers, sets, constraints

b. Relations, attributes, tuples

c. Tables, rows, degree

d. Instances, record types, entities

Which are some components of the Relational Data Model?

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Vyberte jednuodpov

a. Data is stored in a hierarchical model.

b. You can use normalization to avoid redundant data in your tables.

c. Define your database schema using a Data Definition Language (DDL).

d. Accesses data using Data Manipulation Language (DML) such as SQL.

When using a Relational Database, which of the following does NOT apply?

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Body: 1Vyberte jednu

odpov

a. Rows are also known as fields of the table

b. A table consists of columns and rows

c. Rows in the same table can have a different set of columns

d. Relational databases cannot store video or audio

Which of the following is true about Relational Databases?

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odpov

a. GRANT INSERT ON TABLE tab1 TO USER John

b. GRANT ADD ON TABLE tab1 TO USER John

c. GRANT ADD ON TABLE tab1 TO John

d. GRANT INSERT ON TABLE tab1 TO John

Which of the following statements grants user John the ability to insert data to table tab1?

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odpov

a. Hierarchical

b. Entity-Relationship

c. Semi-structured

d. Relational

Which Data Model was created with the focus of providing better data independence?

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odpov

a. BRANCH and PRODUCT are parents of EMPLOYEE

b. BRANCH is dependant on EMPLOYEE, PRODUCT is parent of EMPLOYEE

c. EMPLOYEE is parent of PRODUCT and BRANCH

d. PRODUCT is the parent of BRANCH and EMPLOYEE

Your company has asked you to create a database to store and organize data about the structure of the

company. You want to store branch, employee data, and product information in three tables BRANCH,

EMPLOYEE and PRODUCT. An employee is assigned to work at a branch on a specific product. With this

information, indicate what would be the relationship you should use between these tables considering

normalization.

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Vyberte jednu

odpov

a. CONTROL

b. REFERENCES

c. CREATEIN

d. ALTER

Which of the following privileges permits a user to create objects within a schema?

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odpov

a. DELETE * FROM sales WHERE YEAR(sales_date) = 1995

b. DROP * FROM sales WHERE YEAR(sales_date) = 1995

c. DELETE FROM sales WHERE YEAR(sales_date) = 1995

d. DROP FROM sales WHERE YEAR(sales_date) = 1995

Given the following table definition:

SALES

--------------------------

SALES_DATE DATE

SALES_PE RSON CHAR(20)

REGION CHAR(20)

SALES INTEGER

Which of the following SQL statements will remove all rows that had a SALES_DATE in the year

1995?

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Vyberte jednu

odpov

a. DEL

b. REMOVE

c. DROP

d. DELETE

Given the options below, which of the following statements can remove a table from a database?

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Vyberte jednu

odpov

a. Creation of a temporary table space called mytbsp1 that is managed automatically

b. Creation of a large table space called mytbsp1 that is managed automatically

c. Creation of a user table space called mytbsp1 that is managed automatically

d. This command will return a syntax error to the user

Consider the following command:

CREATE TABLESPACE MYTBSP1 MANAGED BY AUTOMATIC

What will be the result of running this command?

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Vyberte jednu

odpov

a. SELECT

b. UPDATE

c. INSERT

d. ALTER

Which of the following is NOT a DML statement?

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Vyberte jednuodpov

a. DB2 Express Edition

b. DB2 Everyplace

c. DB2 Enterprise Server Edition

d. DB2 Workgroup Server Edition

Which of the following is the lowest cost DB2 product that can be legally installed on a Linux server that has 2

CPUs?

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Vyberte jednu

odpov

a. Primary keys uniquely identify each tuple of the relation.

b. Primary keys define the relationship between two tables.

c. A relation can have multiple foreign keys.

d. Primary keys are defined by a subset of attributes of a relation.

Which of the following is NOT true about keys in the relational model?

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odpov

a. When the user disconnects from a database.

b. When the user connects to the database.

c. It is part of DB2 server startup process

d. Just before DB2 executes a SQL statement sent by a client application.

When does authentication takes place?

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odpov

a. Databases are cheaper to use than other alternatives.

b. Databases store data in an unstructured way for faster insert performance.

c. Databases allow multiple users to handle and change the data without losing data

and its consistency.

d. Databases are an intrinsic functionality of most Operating Systems, thus it's widely

available to applications.

Which of the following is a reason for using databases to store data INSTEAD of the many alternatives?

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odpov

a. SELECT student_name FROM student_marks WHERE phys is NULL

b. SELECT student_name FROM student_marks WHERE phys = ' '

c. SELECT student_name FROM student_marks WHERE phys = NULL

d. SELECT student_name FROM student_marks WHERE phys = 0

Giving the following create table statement

CREATE TABLE student_marks

(student_name CHAR(20) NOT NULL,

student_number INTEGER NOT NULL,

math INTEGER,

phys INTEGER,

engl Integer)

Which of the following statements will retrieve the student's name who does NOT have a phys mark?

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Vyberte jednu

odpov

a. In a ERD, an Entity is represented with a rectangle

b. One-to-one, and many-to-many are relationships you can represent in a ERD

c. Entities in the relational model map to tables in relational database

d. Attributes in the relational mode map to rows in a relational database

Which of the following statements is false?

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odpov

a. All of the above

b. Reduces network traffic

c. Access to features that exist only on the server

d. Enforcement of business rules

What are the advantages of using Stored Procedures?


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odpov

a. Storage Optimization

b. Advanced Access Control

c. Performance Optimization

d. pureXML

Which of the following is NOT a Feature Pack that can add extra functionality to a DB2 server?

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Stedn kola informatiky a spoj, Brno, ichnova 23. Kontakt:[email protected].

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