Oracle 1Z0-950 問題集

質問 1：
When working with the Linux operating system on a Database Cloud Service instance (non RAC), which user accounts are available for database and non-database administration?
A. cloud-admin, oracle, and root
B. opc, oracle, and root through sudo
C. Administrator, ora-cloud, and oracle
D. admin, opc, and oracle
E. root, opc-admin, and oracle through sudo
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 2：
You are going to use the Data Pump Transportable Tablespace method to migrate an Oracle Database 12c CDB database from on-premises to an Oracle Database 12c database in Oracle Database Cloud. Which four steps must you perform to accomplish this task?
A. On the source database host, set all tablespaces that will be transported to READ ONLY mode.
B. On the Database Cloud Service compute node, invoke Data Pump Import and import the data into the database using the TRASNPORT_DATAFILES option.
C. On the Database Cloud Service database, set the tablespaces to READ WRITE mode.
D. On the Database Cloud Service compute node invoke Data Pump Export to perform the transportable tablespace export.
E. On the source database host, invoke Data Pump Import and import the data into the database using the TRANSPORT_DATAFILES option.
F. On the source database host, invoke Data Pump Export to perform the transportable tablespace export.
正解：A,C,D,F
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Cloud customers are rightfully concerned about security in the public cloud. What is Oracle's default policy for databases backed up in the Oracle Storage cloud?
A. Oracle does not offer encryption for database cloud storage.
B. Oracle offers strong third-party encryption choices at a reasonable cost to cloud database customers.
C. Encryption of backups is the responsibility of the customer depending on their security needs.
D. Database users will need to use encryption commands to send and retrieve as well as manipulate data in the cloud.
E. All databases stored in the Oracle Storage cloud are encrypted by default.
正解：D

質問 4：
You get a Maintenance notification about your Oracle MySQL Cloud Service. What are the implications?
A. There are no maintenance operations planned. You need to do them manually.
B. You need to agree to the maintenance windows. If not, you are not affected by the outage.
C. Depending on the planned outage, you may not be affected by it. You need to read the maintenance details in the support notice.
D. You can expect an outage of your MySQL Cloud Service during the planned time.
正解：C

質問 5：
The DBA is attempting a cloud database connection and the connection is failing with the following Oracle net error: ORA-12660: Encryption or crypto-checksumming parameters incompatible. What is the cause of the problem?
A. The DBA has set ENCRYPTION_SERVER and CRYPTO_CHECKSUM_SERVER to "required" in the sqlnet.ora file. This will create an unencrypted connection, which will automatically fail because it's insecure.
B. The DBA has not enabled native Oracle net encryption in the cloud through the CLOUD_ENCRYPTION_SERVER and CLOUD_CRYPTO_CHECKSUM_SERVER parameters in their cloud instance sqlnet.ora file.
C. There sre no values assigned to the two sqlnet.ora parameters, CLOUD_ENCRYPTION_SERVER and/or CLOUD_CRYPTO_CHECKSUM_SERVER or they don't exist on the client.
D. They've specified an RSA key size that's too small to interface with the cloud.
E. They have explicitly set ENCRYPTION_CLIENT and CRYPTO_CHAECKSUM_CLIENT as
"rejected" in sqlnet.ora. This will create an unencrypted connection, which will automatically fail because it's insecure.
正解：B
解説: (Topexam メンバーにのみ表示されます)

質問 6：
Acme Corporation has two environments: an on-premise Oracle Database environment and a new Oracle Database Cloud environment. Because of this, Acme users have to manage their user accounts and passwords in two places, on premises and in the cloud. What step should be taken to help eliminate the multiple sign-on, multiple password issue?
A. Enable federated login by establishing the Federated User Login and pointing all on-premises accounts to the federated login account.
B. When the service account is created, the service administrator can automatically connect the on-premises domain with the newly created cloud service domain by selecting the Federated Login Required check box and filling in the domain name.
C. Acme should assign an identity domain administrator and instruct him/her to duplicate the on-premises accounts to the cloud, and then send emails to the users instructing them to duplicate their passwords.
D. Acme could implement identity federation between the on-premises and cloud environments to achieve single sign on.
E. Identity federation is not possible between Oracle environments on premises and in the cloud.
正解：D

質問 7：
You plan to use the unplug/plug method to move your Oracle Database 12c on-premises PDB to an Oracle Database 12c database in the Cloud. Which four tasks must you perform to unplug the PDB and then plug it into the Oracle Database Cloud Service database?
A. Close the on-premises PDB.
B. Transfer the XML file from the ALTER PLUGGABLE DATABASE . . . UNPLUG INTO command and the PDB datafile(s) to the Oracle Database Cloud Service compute node.
C. Execute the ALTER PLUGGABLE DATABASE . . . UNPLUG INTO command on the on-premises database to generate an XML file.
D. Transfer only the datafiles of the PDB to the Oracle Database Cloud Service compute node.
E. Transfer only the XML file from the ALTER PLUGGABLE DATABASE . . . UNPLUG INTO command to the Oracle Database Cloud Service compute node.
F. Execute the CREATE PLUGGABLE DATABASE command on the Oracle Database Cloud Service database to plug in the PDB.
G. Set the open mode of the on-premises PDB to read-only.
正解：A,C,D,F
解説: (Topexam メンバーにのみ表示されます)