Prüfungsfragen und antworten 1Z0-804 Oracle

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1Z0-804 Java SE 7 Programmer II Exam Die rasante Entwicklung im Bereich der Informationstechnik macht es zwingend, sich regelmäßig fortzubilden. Weisen Sie Ihr IT-Können nach, absolvieren Sie Ihre Prüfung. Bei Ihrer Zertifizierungsvorbereitung werde Ihnen zertifizierung-portal.de sehr gut helfen.

Prüfungsfragen und antworten 1Z0-804 Oracle

QUESTION NO: 1
Given:
import java.io.File;
import java.nio.file.Path;
public class Test12 {
static String displayDetails(String path, int location) {
Path p = new File(path).toPath();
String name = p.getName(location).toString();
return name;
}
public static void main(String[] args) {
String path = “project//doc//index.html”;
String result = displayDetails(path,2);
System.out.print(result);
}
}
What is the result?

A. doc
B. index.html
C. an IllegalArgumentException is thrown at runtime.
D. An InvalidPthException is thrown at runtime.
E. Compilation fails.

Answer: B

QUESTION NO: 2
Given the code fragment:
public void otherMethod() {
printFile(“”);
}
public void printFile(String file) {
try (FileInputStream fis = new FileInputStream(file)) {
System.out.println (fis.read());
} catch (IOException e) {
e.printStackTrace();
}
Why is there no output when otherMethod is called?

A. An exception other than IOException is thrown.
B. Standard error is not mapped to the console.
C. There is a compilation error.
D. The exception is suppressed.

Answer: D

Explanation: The code compiles fine
The line FileInputStream fis = new FileInputStream(file))
will fail at runtime since file is an empty string.
Note:
public void printStackTrace()
Prints this throwable and its backtrace to the standard error stream.

QUESTION NO: 3
Given the code fragment:
public void ReadFile (String source) {
char[] c = new char [128];
int cLen = c.length;
try (FileReader fr = new FileReader (source)) {
int count = 0;
int read = 0;
while ((read = fr.read(c)) != -1) {
count += read;
}
System.out.println(“Read: ” + count + ” characters.”);
} catch (IOException i) {
}
What change should you make to this code to read and write strings instead of character arrays?

A. ChangeFileReader to Readers.
B. ChangeFileReader to DataReader.
C. ChangeFileReader to File.
D. ChangeFileReader to BufferReader.

Answer: D

Prüfungsfragen und antworten 1Z0-804 Oracle

Prüfungsfragen und antworten 1Z0-147 Oracle

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1Z0-147 Oracle9i program with pl/sql Die rasante Entwicklung im Bereich der Informationstechnik macht es zwingend, sich regelmäßig fortzubilden. Weisen Sie Ihr IT-Können nach, absolvieren Sie Ihre Prüfung. Bei Ihrer Zertifizierungsvorbereitung werde Ihnen zertifizierung-portal.de sehr gut helfen.

Prüfungsfragen und antworten 1Z0-147 Oracle

QUESTION 1
You want to create procedures, functions and packages Which privilege do you need?
A. EXECUTE CODE object privilege
B. CREATE ANY CODE object privilege
C. CREATE PACKAGE system privilege
D. CREATE PROCEDURE system privilege
E. CREATE FUNCTION, CREATE PROCEDURE, CREATE PACKAGE system privileges

Answer: D

Explanation/Reference:
The privilege CREATE PROCEDURE gives the grantee the right to create procedures, functions, and packages within their schema. This privilege does not give the right to drop or alter the program constructs.
Incorrect Answers
A, B & C are not valid object or system privileges.

QUESTION 2
You have created a stored procedure DELETE_TEMP_TABLE that uses dynamic SQL to remove a table in your schema. You have granted the EXECUTE privilege to user A on this procedure. When user A executes the DELETE_TEMP_TABLE procedure, under whose privileges are the operations performed by default?
A. SYS privileges
B. Your privileges
C. Public privileges
D. User A’s privileges
E. User A cannot execute your procedure that has dynamic SQL.

Answer: B

Explanation/Reference:
When you create a procedure, it will be executed under the privileges of the creator, unless the procedure has the following statement AUTHID CURRENT_USER. If you specify AUTHID CURRENT_USER, the privileges of the current user are checked at run time, and external references are resolved in the schema of the current user. Like this example
SQL> CREATE OR REPLACE PROCEDURE delete_temp_table(v_table varchar2)
2 AUTHID CURRENT_USER
3 IS
4 BEGIN
5 EXECUTE IMMEDIATE ‘DROP TABLE ‘||V_TABLE;
6 END;
7 /
Procedure created.
If the procedure is create in this way then the EXECUTE IMMEDIATE statement will be execute under the privilege of the user who executes the procedure, but if we skip line 2 then the procedure will be executed under the privilege of the owner of the procedure.
Incorrect Answers
A: SYS privilege has nothing with is.
C: What is the public privileges? There is nothing called public privileges.
D: This will be true if the procedure contains the AUTHID CURRENT_USER.
E: There is no problem in having a dynamic SQL statement in Procedure.

QUESTION 3
When creating a function, in which section will you typically find the RETURN keyword?
A. HEADER only
B. DECLARATIVE
C. EXECUTABLE and HEADER
D. DECLARATIVE,EXECUTABLE and EXCEPTION HANDLING

Answer: C

Prüfungsfragen und antworten 1Z0-147 Oracle

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1Z0-053 Oracle Database 11g: Administration II Alle Lernmaterialien werden rechtzeitig nach der Änderung der Prüfung aktualisiert, damit Sie immer mit der neuesten Version auf Ihrere Prüfung vorbereiten können. Bevor Sie unsere Produkte einkaufen, können Sie auch kosteblos bei zertifizierung-portal.de demo downloaden.

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QUESTION 1
Examine the following command used to perform incremental level 0 backup:

RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE;

To enable the block change tracking, after the incremental level 0 backup you issued the following command:

SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘/mydir/
rman_change_track.f’;

To perform incremental level 1 cumulative backup, you issued the following command:

RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;

Which two statements are true in the above situation? (Choose two.)

A. The block change tracking data will be used only from the next incremental 0 backup.
B. The incremental backup will use change tracking data for accomplishing the backup.
C. The incremental backup will not use change tracking data for accomplishing the backup.
D. The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0
backup.

Answer: AC
Section: Backup, Recovery & Recovery Manager (RMAN)

Explanation/Reference:
Section: Backup, Recovery & Recovery Manager (RMAN)

http://www.pythian.com/documents/Pythian-oracle-block-change.pdf After enabling change tracking, the first level 0 incremental backup still has to scan the entire datafile, as the change tracking file does not yet reflect the status of the blocks. Subsequent incremental backup that use this level 0 as parent will take advantage of the change tracking file. When some a chunk needs to be marked dirty for the first time after incremental backup, version information in bitmap extent headers (X$KRCFBH) is initialized – XFLAGS is set to 2, CURR_VERCNT and CURR_VERTIME
filled from datafile descriptor. If file had no changes since last incremental backup – nothing is written to the bitmap. There is no difference in handling different backup levels. Version is created in the same way whether its level 0, level 1 or level 4 backup. By the way, it seems that Oracle 10g documentation officially mentions only support for levels 0 and 1. However, I checked incremental backup levels up to 4 and they do work (10.2.0.2). Oracle Press 1Z1-053 Exam Guide, Chapter 4: Creating RMAN Backups The first incremental level 0 backup reads every block in the datafile, and subsequent incremental level 1 backups use the block change tracking file. No reference to create bitmap found. http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/bkup004.htm#i1032148

RMAN’s change tracking feature for incremental backups improves incremental backup performance by recording changed blocks in each datafile in a change tracking file. If change tracking is enabled, RMAN uses the change tracking file to identify changed blocks for incremental backup, thus avoiding the need to scan every block in the datafile. Using change tracking in no way changes the commands used to pe form incremental backups, and the change tracking files themselves generally require little maintenance after initial configuration.

QUESTION 2
You want to use the automatic management of backup and recovery operations features for your database.

Which configuration must you set?

A. Enable the flash recovery area and specify it as the archived redo log destination.
B. Disable the flash recovery area and start the database instance in ARCHIVELOG mode.
C. Enable the flash recovery area but do not specify it as the archived redo log destination.
D. Disable the flash recovery area and start the database instance in NOARCHIVELOG mode.

Answer: A

QUESTION 3
Which three types of files can be automatically placed in the flash recovery area (fast recovery area in 11g Release 2)? (Choose three.)

A. Alert log file
B. Archived redo log files
C. Control file autobackups
D. Server Parameter file (SPFILE)
E. Recovery Manager (RMAN) backup piece

Answer: BCE

Fragenkatalog 1Z0-053 Oracle demo downloaden

Prüfungsfragen und antworten 1Z0-052 Oracle

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1Z0-052 Oracle Database 11g: Administrator I Die rasante Entwicklung im Bereich der Informationstechnik macht es zwingend, sich regelmäßig fortzubilden. Weisen Sie Ihr IT-Können nach, absolvieren Sie Ihre Prüfung. Bei Ihrer Zertifizierungsvorbereitung werde Ihnen zertifizierung-portal.de sehr gut helfen.

Prüfungsfragen und antworten 1Z0-052 Oracle

QUESTION NO: 1
Your database instance is currently configured to support 1,500 connections. The Web application that uses the database allows a large number of users to work with the database simultaneously.
Some users of the Web application do not interact with the server all the time. You want to
increase the scalability by configuring the database instance to handle more connections. As a DBA, which configuration would you set to support more than 1,500 connections at a time?

A. You would configure more listeners for the database.
B. You would configure the database in shared server mode to use the connection pooling feature.
C. You would increase the value of the PGA_AGGREGATE_TARGET initialization parameter that assigns more session memory to users.
D. You would decrease the value of the PRIVATE_SGA resource limit in the profiles used by the users to accommodate more session information.

Answer: B

QUESTION NO: 2
Which two statements describe good practices for an application developer to reduce locking conflicts in Oracle database? (Choose two.)

A. Avoid coding unnecessary longrunning transactions.
B. Allow the database to handle locks in default locking mode.
C. Always explicitly code the locks as per the requirement of the application.
D. Allow escalation of row locks to block locks if too many row locks cause problem.

Answer: A,B

QUESTION NO: 3
These are points that describe the contents of different memory components:
1: Descriptive information or metadata about schema objects that are queried by using SQL statements
2: The runtime area for data manipulation language (DML) or data definition language (DDL) statements
3: Results of SQL queries and PL/SQL functions
4: Executable forms of SQL cursors, PL/SQL programs, and Java classes
5: The information necessary to reconstruct changes made to the database by a transaction
Which of these will be stored in the Shared Pool if the necessary configurations are done?

A. 1 and 2
B. 2 and 5
C. 1,3, and 4
D. 3,4 and 5
E. 1,2,3 and 4

Answer: C

Prüfungsfragen und antworten 1Z0-052 Oracle