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Oracle Exam Study Materials (video and practice questions)

Oracle 1Z0-071

Oracle Database 1Z0-071 Practice Questions 1-5

QUESTION 1
Examine the create table statements for the stores and sales tables.
SQL> CREATE TABLE stores(store_id NUMBER(4) CONSTRAINT store_id_pk PRIMARY KEY, store_name
VARCHAR2(12), store_address VARCHAR2(20), start_date DATE);
SQL> CREATE TABLE sales(sales_id NUMBER(4) CONSTRAINT sales_id_pk PRIMARY KEY, item_id NUMBER(4),
quantity NUMBER(10), sales_date DATE, store_id NUMBER(4), CONSTRAINT store_id_fk FOREIGN KEY(store_id)
REFERENCES stores(store_id));
You executed the following statement:
SQL> DELETE from stores
WHERE store_id=900;
The statement fails due to the integrity constraint error:
ORA-02292: integrity constraint (HR.STORE_ID_FK) violated
Which three options ensure that the statement will execute successfully?
A. Disable the primary key in the STORES table.
B. Use CASCADE keyword with DELETE statement.
C. DELETE the rows with STORE_ID = 900 from the SALES table and then delete rows from STORES table.
D. Disable the FOREIGN KEY in SALES table and then delete the rows.
E. Create the foreign key in the SALES table on SALES_ID column with on DELETE CASCADE option.
Correct Answer: CDE

QUESTION 2
Which three statements are true about the ALTER TABLE….DROP COLUMN…. command?
A. A column can be dropped only if it does not contain any data.
B. A column can be dropped only if another column exists in the table.
C. A dropped column can be rolled back.
D. The column in a composite PRIMARY KEY with the CASCADE option can be dropped.
E. A parent key column in the table cannot be dropped.
Correct Answer: BDE

QUESTION 3
MANAGER is an existing role with no privileges or roles.
EMP is an existing role containing the CREATE TABLE privilege.
EMPLOYEES is an existing table in the HR schema.
Which two commands execute successfully?
A. GRANT CREATE SEQUENCE TO manager, emp;
B. GRANT CREATE ANY SESSION, CREATE ANY TABLE TO manager;
C. GRANT SELECT, INSERT ON hr.employees TO manager WITH GRANT OPTION;
D. GRANT CREATE TABLE, emp TP manager;
E. GRANT CREATE TABLE, SELECT ON hr.employees TO manager;
Correct Answer: AC

QUESTION 4
Which three actions can you perform by using the ORACLE_DATAPUMP access driver? (Choose three.)
A. Read data from an external table and load it into a table in the database
B. Create a directory object for an external table
C. Execute DML statements on an external table
D. Query data from an external table
E. Read data from a table in the database and insert it into an external table
F. Create a directory object for a flat file
Correct Answer: BDE

QUESTION 5
Which two statements are true regarding the EXISTS operator used in the correlated subqueries? (Choose two.)
A. The outer query stops evaluating the result set of the inner query when the first value is found.
B. It is used to test whether the values retrieved by the inner query exist in the result of the outer query.
C. It is used to test whether the values retrieved by the outer query exist in the result set of the inner query.
D. The outer query continues evaluating the result set of the inner query until all the values in the result set are
processed.
Correct Answer: AC
References: http://www.techonthenet.com/oracle/exists.php

Oracle 1z0-062

Oracle Database Application Development 1Z0-062 Practice Questions 1-5

QUESTION 1
As part of a manual upgrade of your database to Oracle Database 12c, you plan to issue the command: SQL>
STARTUP UPGRADE
Which three statements are true about the upgrade process? (Choose three.)
A. All system triggers are disabled during the upgrade process.
B. Only queries on fixed views execute without errors until you run the catctl.pl script.
C. The COMPATIBLE parameter must be set to at least 12.1.0 before issuing the command.
D. All job queues remain active during the upgrade process.
E. Only connections AS SYSDBA are allowed during the upgrade process.
Correct Answer: ADE

QUESTION 2
You want to create a test database as a replica of your production database with minimum intervention from a DBA.
Which method would you use?
A. Use DBCA to create a template from the existing database to contain the database structure and then manually copy
the data by using Oracle Data Pump.
B. Use Database Configuration Assistant (DBCA) to create a template from the existing database to contain the
database structure.
C. Create the database by using the CREATE DATABASE. . . command and manually import data by using Data
Pump.
D. Use DBCA to create a template from the existing database to contain the database structure with data files and then
use the same template to create the database in the new location.
Correct Answer: A

QUESTION 3
In your multitenant container database (CDB) with two pluggable database (PDBs). You want to create a new PDB by
using SQL Developer.
Which statement is true?
A. The CDB must be open.
B. The CDB must be in the mount stage.
C. The CDB must be in the nomount stage.
D. Alt existing PDBs must be closed.
Correct Answer: A
* Creating a PDB
Rather than constructing the data dictionary tables that define an empty PDB from scratch, and then populating its Obj$
and Dependency$ tables, the empty PDB is created when the CDB is created. (Here, we use empty to mean containing
no customer-created artifacts.) It is referred to as the seed PDB and has the name PDB$Seed. Every CDB nonnegotiably contains a seed PDB; it is non-negotiably always open in read-only mode. This has no conceptual
significance; rather,
it is just an optimization device. The create PDB operation is implemented as a special case of the clone PDB operation.
The size of the seed PDB is only about 1 gigabyte and it takes only a few seconds on a typical machine to copy it.

QUESTION 4
Which three features work together, to allow a SQL statement to have different cursors for the same statement based
on different selectivity ranges? (Choose three.)
A. Bind Variable Peeking
B. SQL Plan Baselines
C. Adaptive Cursor Sharing
D. Bind variable used in a SQL statement
E. Literals in a SQL statement
Correct Answer: ACD

QUESTION 5
Which statement is true regarding the startup of a database instance?
A. The instance does not start up normally and requires manual media recovery after a shutdown using the abort
option.
B. Uncommitted transactions are rolled back during the startup of the database instance after a shutdown using the
immediate option.
C. There is no difference in the underlying mechanics of the startup whether the database is shut down by using the
immediate option or the abort option.
D. Media recovery is required when the database is shut down by using either the immediate option or the abort option.
E. Instance recovery is not required if the database instance was shut down by using SHUTDOWN IMMEDIATE.
Correct Answer: E
References: http://docs.oracle.com/cd/A87860_01/doc/server.817/a76956/start.htm

Oracle 1z0-144

Oracle Oracle Database Application Development 1Z0-144 Practice Questions 1-5

QUESTION 1
Which two statements are true about database triggers? (Choose two.)
A. Each trigger can be of any size.
B. Each trigger can be of a maximum size of 32 KB.
C. A trigger can contain a maximum of 32 lines of code.
D. Triggers fired by DML statements cannot cascade simultaneously.
E. Both DML and DDL statements can cascade any number of triggers.
F. Both data manipulation language (DML) and data definition language (DDL) statements can cascade up to 32
triggers.
Correct Answer: BF

QUESTION 2
Which system events can be used to create triggers that fire both at DATABASE and SCHEMA levels? (Choose two.)
A. AFTER LOGON
B. AFTER STARTUP
C. BEFORE SHUTDOWN
D. AFTER SERVERERROR
Correct Answer: AD
References: http://docs.oracle.com/cd/E11882_01/appdev.112/e25519/create_trigger.htm#LNPLS2064

QUESTION 3
Examine the following command:
SQL>ALTER SESSION SET plsql_warnings * \\’enable: severe\\’, \\’enable: performance\\’, \\’ERROR: 05003\\’;
What is the implication of the above command?
A. It issues a warning whenever ERROR: 05003 occur during compilation.
B. It causes the compilation to fail whenever the warning ERROR.05003 occurs.
C. It issues warnings whenever the code causes an unexpected action or wrong results performance problems.
D. It causes the compilation to fail whenever the code gives wrong results or contains statements that are never
executed.
Correct Answer: B

QUESTION 4
View the Exhibit to examine the PL/SQL code.

Which statement is true about the exception handlers in the PL/SQL code?
A. All the exceptions in the code are trapped by the exception handler.
B. All the “no data found” errors in the code are trapped by the exception handler.
C. The PL/SQL program does not execute because an exception is not declared in the DECLARE section.
D. An exception handler in the code traps the “no data found” error after executing the handler code and the program
flow returns to the next line of code.
Correct Answer: B

QUESTION 5
View the Exhibit and examine the code and its outcome on execution: What would be the effect on the two procedures if
the value of debug is set to FALSE? (Choose two.)

A. MY_PROC2 is not recompiled.
B. MY_PROC1 is recompiled but remains unchanged.
C. MY_PROC2 is recompiled but remains unchanged.
D. MY_PROC1 is recompiled without the debugging code.
Correct Answer: CD

Oracle 1z0-750

Oracle Database 1Z0-750 Practice Questions 1-5

QUESTION 1
Which four tasks can you perform using the Shared Components section in Application Builder? (Choose four.)
A. Edit the No Data Found messages for multiple report regions in the application
B. Manage translatable text messages for the application
C. Review debug messages generated by the application
D. Change the application alias
E. Manage application upgrade scripts
F. Change navigational components of the application
G. Add different application roles and configure their role assignment
H. Delete multiple application pages
Correct Answer: ABDG

QUESTION 2
Which best describes how Session State Protection works?
A. saves sensitive data in Oracle Application Express session state tables in encrypted form, stopping users from
tampering with the data
B. adds checksums to Page Access Protection attributes and Session State Protection item attributes to prevent
alteration of session state
C. saves data in Oracle Application Express session state tables in encrypted form and uses the Page Access
Protection attributes and the Session State Protection item attributes with checksums to prevent alteration of session
state
D. encrypts the values supplied in the URL to prevent reading of the values
Correct Answer: B
Reference: https://docs.oracle.com/database/121/HTMDB/sec_dev.htm#HTMDB12002

QUESTION 3
Which two actions can be done by a Page Process of type Automatic Row Processing (DML)? (Choose two.)
A. Perform automatic detection of lost updates.
B. Perform CRUD operations on multiple tables.
C. Log a user-defined message when an exception is raised.
D. Apply a SQL WHERE clause to append to all generated INSERT, UPDATE, and DELETE statements at run time.
E. generate a primary key column value on a SQL INSERT statement.
F. Invoke PL/SQL code to perform the inserts, updates, and deletes.
Correct Answer: DF
Reference: https://docs.oracle.com/html/E39147_04/app_forms004.htm

QUESTION 4
Martin has a text field on a page that he wants to protect with Session State Protection.
Select the four valid protection levels available to Martin. (Choose four.)
A. Checksum Required: User Level
B. Hidden Item
C. Checksum Required: Workspace Level
D. Unrestricted
E. Checksum Not Required
F. Checksum Required: Session Level
G. Restricted: May not be set from browser
H. Checksum Required: Application Level
Correct Answer: AFGH
Reference: https://docs.oracle.com/database/121/HTMDB/sec_dev.htm#HTMDB25976

QUESTION 5
Michael has developed an app for tracking product defects. His navigation menu lists each product. He has defined
application items and computations to hold the number of defects for each product. For example, for Hedgers, he has
defined the application item HEDGER_DEFECTS.
How can Michael add the number of open defects in the navigation menu entries?
A. Update the Navigation Menu template to be Include Count.
B. Update Template Options and set Display Count to True.
C. Update the List Entry Label for Hedgers to Hedgers andHEDGER_DEFECTS., and similarly for other products.
D. Add andHEDGER_DEFECTS. to User Defined Attribute 01 in the navigation menu for Hedgers, and similarly for
other products.
Correct Answer: C

Oracle 1z0-1084-20

Oracle Cloud 1Z0-1084-20 Practice Questions 1-5

QUESTION 1
As a cloud-native developer, you are designing an application that depends on Oracle Cloud Infrastructure (OCI) Object
Storage wherever the application is running. Therefore, provisioning of storage buckets should be part of your
Kubernetes deployment process for the application.
Which should you leverage to meet this requirement? (Choose the best answer.)
A. OCI Service Broker for Kubernetes
B. OCI Container Engine for Kubernetes
C. Open Service Broker API
D. Oracle Functions
Correct Answer: A
Reference: https://blogs.oracle.com/cloud-infrastructure/introducing-service-broker-for-kubernetes

QUESTION 2
What is one of the differences between a microservice and a serverless function? (Choose the best answer.)
A. Microservices are used for long running operations and serverless functions for short running operations.
B. Microservices always use a data store and serverless functions never use a data store.
C. Microservices are stateless and serverless functions are stateful.
D. Microservices are triggered by events and serverless functions are not.
Correct Answer: B

QUESTION 3
You want to push a new image in the Oracle Cloud Infrastructure (OCI) Registry. Which two actions do you need to
perform? (Choose two.)
A. Assign a tag via Docker CLI to the image.
B. Generate an auth token to complete the authentication via Docker CLI.
C. Generate an API signing key to complete the authentication via Docker CLI.
D. Assign an OCI defined tag via OCI CLI to the image.
E. Generate an OCI tag namespace in your repository.
Correct Answer: AB

QUESTION 4
You are developing a polyglot serverless application using Oracle Functions.
Which language cannot be used to write your function code? (Choose the best answer.)
A. PL/SQL
B. Python
C. Node.js
D. Go
E. Java
Correct Answer: A
Reference: https://static.rainfocus.com/oracle/oow19/sess/1550723907257001SAfg/PF/Serverless%20%20A%20Game%20Changer%20in%20Cloud%20Computing%20%281%29_1568730727062001IhkS.pdf (18)

QUESTION 5
You have two microservices, A and B running in production. Service A relies on APIs from service B. You want to test
changes to service A without deploying all of its dependencies, which includes service B. Which approach should you
take to test service A? (Choose the best answer.)
A. Test against production APIs.
B. Test using API mocks.
C. There is no need to explicitly test APIs.
D. Test the APIs in private environments.
Correct Answer: B
Reference: https://docs.oracle.com/cloud/apiary/tools/mock-server/index.html

Oracle 1z0-1085-20

Oracle Cloud 1Z0-1085-20 Practice Questions 1-5

QUESTION 1
Which is an example of Edge Services in Oracle Cloud Infrastructure (OCI)?
A. Virtual Firewall
B. Object Storage
C. Virtual Cloud Network (VCN)
D. Web Application Firewall
Correct Answer: D
Reference: https://blogs.oracle.com/cloudsecurity/inside-3-new-oracle-cloud-edge-services

QUESTION 2
What characteristics are defined by an Oracle Cloud Infrastructure Compute shape?
A. Availability Domain and Fault Domain locations
B. Number of vCPU, amount of RAM, bandwidth
C. Number of OCPU, amount of RAM, bandwidth
D. Public or private visibility of the Compute instance
Correct Answer: C
Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/Concepts/computeoverview.htm

QUESTION 3
Which gateway can be used to provide internet access to an Oracle Cloud infrastructure compute instance in a private
subnet?
A. Internet Gateway
B. NAT Gateway
C. Service Gateway
D. Dynamic Routing Gateway
Correct Answer: B
Reference: https://blogs.oracle.com/cloud-infrastructure/access-resources-on-the-public-internet-through-an-oraclecloud-infrastructure-nat-gateway-v2

QUESTION 4
Which offers the lowest pricing for storage (per GB)?
A. Oracle Cloud Infrastructure Archive Storage
B. Oracle Cloud Infrastructure Object Storage (standard tier)
C. Oracle Cloud Infrastructure Block Volume
D. Oracle Cloud Infrastructure File Storage
Correct Answer: C
Reference: https://www.oracle.com/cloud/storage/pricing.html

QUESTION 5
Which three methods can you use to create or modify Oracle Cloud Infrastructure (OCI) resources? (Choose three.)
A. REST APIs
B. OCI Console
C. Secure Shell (SSH)
D. Remote Desktop Protocol (RDP)
E. OCI desktop client
F. Commands-line Interface
G. Serial console connection
Correct Answer: ABF
Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/ResourceManager/Concepts/resourcemanager.htm

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