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OCA OCA Quiz am OCA-12-Uderstanding Oracle Network Architecture, erstellt von Jamonero Blanco am 30/01/2017.

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Jamonero Blanco
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OCA-12-Uderstanding Oracle Network Architecture

Frage 1 von 20

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1. Which of the following files must be present on the Oracle server to start a nondefault
Oracle listener?

Wähle eine oder mehr der folgenden:

  • A. listener.ora

  • B. lsnrctl.ora

  • C. sqlnet.ora

  • D. tnsnames.ora

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Frage 2 von 20

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2. Which of the following is the correct way to start a listener called LISTENER ?

Wähle eine oder mehr der folgenden:

  • A. lsnrctl startup listener

  • B. lsnrctl start

  • C. netca start

  • D. netmgr start listener

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Frage 3 von 20

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3. When dynamic service registration is used, you will not see the service listed in which
of the following files where it would normally be located?

Wähle eine oder mehr der folgenden:

  • A. sqlnet.ora

  • B. tnsnames.ora

  • C. listener.ora

  • D. None of the above

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Frage 4 von 20

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4. Connection Manager provides which of the following?

Wähle eine oder mehr der folgenden:

  • A. Multiplexing

  • B. Cross-protocol connectivity

  • C. Network access control

  • D. All of the above

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Frage 5 von 20

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5. Which is a requirement for using host naming?

Wähle eine oder mehr der folgenden:

  • A. You must use tnsnames.ora on the client.

  • B. You must be using TCP/IP.

  • C. You must have an OID present.

  • D. You must have a sqlnet.ora file present on the client.

  • E. None of the above.

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Frage 6 von 20

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6. Which statements regarding Database Resident Connection Pooling (DRCP) are true?
(Choose two.)

Wähle eine oder mehr der folgenden:

  • A. When a DRCP pooled server connection is made by an application, it is equivalent
    to a dedicated server connection.

  • B. When a database has DRCP enabled, all connections default to a pooled connec-
    tion unless DEDICATED server is explicitly specified in the connect string.

  • C. When an application using the DRCP connection disconnects, the server connec-
    tion (process) is handed off to the broker.

  • D. When using the Oracle Net Easy Connect method, it is not possible to utilize DRCP.

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Frage 7 von 20

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7. A client receives the following error message:
"ORA-12154 TNS:could not resolve the connect identifier specified"
Which of the following could be possible causes of the error? Choose all that apply.

Wähle eine oder mehr der folgenden:

  • A. The listener is not running on the Oracle server.

  • B. The user entered an invalid net service name.

  • C. The user supplied the correct net service name, but the net service name is mis-
    spelled in the tnsnames.ora file on the client file.

  • D. The listener is not configured to listen for this service.

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Frage 8 von 20

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8. What portion of the tnsnames.ora file specifies the name or IP address of the server
where the listener process is listening?

Wähle eine oder mehr der folgenden:

  • A. CONNECT_DATA

  • B. SERVER

  • C. SERVICE_NAME

  • D. HOST

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Frage 9 von 20

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9. A client wants to connect to the database service dbprod.com located on the dbprod.com
server through a nondefault port (1522) using Oracle Easy Connect. Which of the fol-
lowing connect strings are the choices for the client to use? (Choose two.)

Wähle eine oder mehr der folgenden:

  • A. CONNECT scott/tiger@dbprod.com:1522

  • B. CONNECT scott/tiger@1522:dbprod.com/dbprod.com

  • C. CONNECT scott/tiger@//dbprod.com/1522:dbprod.com

  • D. CONNECT scott/tiger@dbprod.com:1522/dbprod.com

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Frage 10 von 20

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10. All of the following are reasons to configure the server using Shared Server except
which one?

Wähle eine oder mehr der folgenden:

  • A. Overall memory utilization is reduced.

  • B. The system is predominantly used for decision support with large result sets
    returned.

  • C. The system is predominantly used for small transactions with many users.

  • D. The number of idle connections on the server is reduced.

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Frage 11 von 20

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11. Which of the following is true about Shared Server?

Wähle eine oder mehr der folgenden:

  • A. Dedicated connections cannot be made when Shared Server is configured.

  • B. It is recommended that DSS type batch jobs be performed when connected via
    Shared Server.

  • C. The database can be started when connected via Shared Server.

  • D. The database cannot be stopped when connected via Shared Server.

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Frage 12 von 20

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12. The administrator wants to allow a user to connect via a dedicated connection
into a database configured in Shared Server mode. Which of the following options
accomplishes this?

Wähle eine oder mehr der folgenden:

  • A. (SERVER=DEDICATED)

  • B. (CONNECT=DEDICATED)

  • C. (INSTANCE=DEDICATED)

  • D. (MULTITHREADED=FALSE)

  • E. None of the above

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Frage 13 von 20

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13. In which of the following files would you find the Shared Server configuration
parameters?

Wähle eine oder mehr der folgenden:

  • A. listener.ora

  • B. mts.ora

  • C. init.ora

  • D. tnsnames.ora

  • E. sqlnet.ora

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Frage 14 von 20

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14. What is the first step that the dispatcher performs after it receives a request from the user?

Wähle eine oder mehr der folgenden:

  • A. Pass the request to a shared server.

  • B. Place the request in a request queue in the PGA.

  • C. Place the request in a request queue in the SGA.

  • D. Process the request.

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Frage 15 von 20

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15. When configured in Shared Server mode, which of the following is contained in the PGA?

Wähle eine oder mehr der folgenden:

  • A. Cursor state

  • B. Sort information

  • C. User session data

  • D. Stack space

  • E. None of the above

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Frage 16 von 20

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16. Which of the following is false about request queues?

Wähle eine oder mehr der folgenden:

  • A. They reside in the SGA.

  • B. They are shared by all the dispatchers.

  • C. Each dispatcher has its own request queue.

  • D. The shared server processes remove requests from the request queue.

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Frage 17 von 20

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17. What is the process that notifies the listener after a database connection is established?

Wähle eine oder mehr der folgenden:

  • A. SMON

  • B. PMON

  • C. LREG

  • D. LGWR

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Frage 18 von 20

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18. Which network architecture connection uses session memory from the SGA?

Wähle eine oder mehr der folgenden:

  • A. Dedicated Server

  • B. Shared Server

  • C. Database Resident Connection Pooling

  • D. All of the above

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Frage 19 von 20

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19. Communication between two Oracle databases is configured using:

Wähle eine oder mehr der folgenden:

  • A. Database Resident Connection Pooling

  • B. Database link

  • C. Connection Manager

  • D. Oracle Net Manager

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Frage 20 von 20

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20. DBA user MIKE ran the SQL statement CREATE DATABASE LINK SCOTT.SALES_LINK
.BJS.COM CONNECT TO SALES_INT IDENTIFIED BY SALESPWD1 USING 'ocasvr:1522/
ocadb' . Choose the option that is true.

Wähle eine oder mehr der folgenden:

  • A. Use of 'ocasvr:1522/ocadb' is invalid in database link definition.

  • B. A private database link is created under user MIKE.

  • C. A private database link is created under user SCOTT.

  • D. If the SALES_INT user does not exist or its password is not SALESPWD1 , the database
    link will not be created.

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