1Z0-078 – Q&A PDF Exam

Description

Format: Multiple-Choice Duration: 120 Minutes Number of Questions: 77 Passing Score: 65% Validation: Exam has been validated for product version Oracle Database 19c Format: Multiple-Choice Duration: 120 Minutes Number of Questions: 77 Passing Score: 65% Validation: Exam has been validated for product version Oracle Database 19c Prepare to pass exam: 1Z0-078 The Oracle Certified Expert, Oracle Database 19c: RAC, ASM, and Grid Infrastructure Administrator certification is for Database production Systems Administrators and Database Administrators with 12-18 months of experience using RAC, ASM, and Grid Infrastructure. This exam measures your skills and knowledge on installation, configuration, backup and recovery, monitoring and tuning of these components, and increases your value to your company and the marketplace. Take recommended training Complete one of the courses below to prepare for your exam (optional): Oracle Database 19c: RAC Administration Workshop Oracle Database 19c: ASM Administration Workshop Oracle Database 19c: Clusterware Administration Workshop Additional Preparation and Information A combination of Oracle training and hands-on experience (attained via labs and/or field experience), in the learning subscription, provides the best preparation for passing the exam. Review exam topics RAC Databases and Architecture Describe the benefits of Oracle RAC Explain the necessity of global resources Describe global cache coordination Installing and Configuring Oracle RAC Install the Oracle database software Create a cluster database Convert a single instance Oracle database to RAC Administering Oracle RAC Define redo log files in a RAC environment Define undo tablespaces in a RAC environment Start and stop RAC databases and instances Modify initialization parameters in a RAC environment Managing Backup and Recovery for RAC Configure the RAC database to use ARCHIVELOG mode and the fast recovery area Configure RMAN for the RAC environment Managing Global Resources Explain the need for global concurrency control Describe the Global Resource Directory Explain how global resources are managed Explain global enqueue and instance lock management Explain global buffer cache management Explain use of Affinity to reduce Global Resource Contention RAC Database Monitoring and Tuning Identify RAC-specific tuning components Determine RAC-specific wait-events, global enqueues and system statistics Implement the most common RAC tuning practices Use the Cluster Database Performance pages Use the Automatic Workload Repository (AWR) in RAC Use Automatic Database Diagnostic Monitor (ADDM) in RAC RAC Database SGA Runtime Management Managing High Availability of Services Configure and manage services in a RAC environment Use services with client applications Configure services aggregation and tracing Managing High Availability for Connections and Applications Configure client-side connect-time load balancing and failover Configure server-side connect-time load balancing Use the Load Balancing Advisory (LBA) Explain the benefits of Fast Application Notification (FAN) Configure Transparent Application Failover (TAF) Co-location Tag for Client Routing Transparent Application Continuity Dynamic Services Fallback Upgrading and Patching Oracle RAC Plan for rolling patches and rolling updates Install a patchset with the Oracle Universal Installer (OUI) utility Install a patch with the opatch utility Managing Oracle RAC One Node Convert an Oracle RAC One Node database to a RAC database Use DBCA to convert a single-instance database to a RAC One Node database Using Oracle Database Quality of Service Management (QoS) Explain the purpose and benefits of using QoS Explain the operation of QoS Using Multitenant Architecture in a RAC Environment Describe the multitenant architecture in RAC and non-RAC environments Create a RAC multitenant container database (CDB) Create a pluggable database (PDB) in a RAC CDB Use the default CDB and PDB services Create PDB services to associate PDB services with server pools Automated PDB Patching and Relocation Grid Infrastructure Administration Introduction to Clusterware Explain the principles and purposes of clusters Describe Cluster hardware best practices Describe how Grid Plug and Play affects Clusterware Oracle Clusterware Architecture Explain the Oracle Clusterware architecture Describe Oracle Clusterware startup details Flex Clusters Explain the Flex Cluster architecture and components Describe the effect of node failure in a Flex Cluster Grid Infrastructure Installation Planning and Pre-Tasks Plan for Grid Infrastructure installation Verify system and network requirements Create groups and users Create directories Grid Infrastructure Installation Install Grid Infrastructure Verify the installation Configure ASM disk groups Optional Install for the Grid Infrastructure Management Repository Managing Cluster Nodes Perform the prerequisite steps to extend a cluster Delete a node from a cluster Use DBCA to ADD new nodes to extend the cluster Traditional Clusterware Management Perform day to day Clusterware administration tasks Perform Oracle Cluster Registry (OCR) backup and recovery Manage network settings Explain the scope and capabilities of what-if command evaluation Secure Cluster Communication Policy-Based Cluster Management Explain the architecture and components of policy-based cluster management Administer server categorization Administer a policy set Activate a policy Upgrading and Patching Grid Infrastructure Explain the types of patches and upgrades available Plan for rolling patches and rolling upgrades Compare software versions with the active version Install a patchset with the Oracle Universal Installer (OUI) Install a patch with the opatch utility Zero-Downtime Oracle Grid Infrastructure Patching Troubleshooting Oracle Clusterware Locate the Oracle Clusterware log files and use diagcollection.pl Enable resource debugging Enable component-level debugging Troubleshoot the Oracle Cluster Registry (OCR) file Making Applications Highly Available with Oracle Clusterware Explain the hivh availability components of Oracle Clusterware Explain policy-managed and administration-managed databases Create an application Virtual IP (VIP) Manage application resources Automatic Storage Management (ASM) Administration Overview of ASM Explain the Automatic Storage Management (ASM) architecture Describe the components of ASM Administering ASM Instances Explain and apply initialization parameters for ASM instances Manage ASM instances and associated processes Monitor ASM instances using the V$ASM dynamic performance views FLEX ASM Describe the architecture and components of Flex ASM Install and configure Flex ASM Manage Flex ASM Administering ASM Disk Groups Create and delete ASM disk groups Set the attributes of an existing ASM disk group Perform ongoing maintenance tasks on ASM disk groups Explain key performance and scalability considerations for ASM disk groups Administering ASM Files, Directories and Templates Use client tools to access ASM files Describe the format of a fully qualified ASM file name Explain how ASM files, directories and aliases are created and managed Describe and manage disk group templates Administering Oracle CloudFS Administer ASM Dynamic Volume Manager Manage ASM volumes Implement ASM Cluster File System (ACFS) Use ACFS snapshots Oracle CloudFS Advance Topics Configure ACFS auditing Implement ACFS encryption Configure and manage ACFC replication Implement ACFS tagging Configure High Availability NFS Sample Questions and Answers QUESTION 1 Examine this sequence of commands: The cluster consists of nodes HOST01, HOST02, HOST03 and HOST04, and the clusterware is running on all four nodes. Which three statements are true about the result of the root user running these commands on HOST01? (Choose three.) A. The Oracle Clusterware stack is stopped on all nodes. B. The Oracle Clusterware stack is prevented from being automatically started on host01. C. The Oracle Clusterware stack is prevented from being automatically started on all nodes. D. The Oracle Clusterware stack is stopped on all nodes except host01. E. The Oracle Clusterware stack is started on all nodes except host01. F. The Oracle Clusterware stack is started on all nodes. Answer: A, B, F QUESTION 2 Secure Cluster Communication protects the cluster interconnect from common security threats when used together with Single Network Support. Secure Cluster Communication includes message digest mechanisms, protection against fuzzing, and uses Transport Layer Security (TLS) to provide privacy and data integrity between the cluster members. Which statement is true about securing cluster interconnect communication? A. Security for the cluster interconnect is invoked automatically as part of a new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c and Database administrators or cluster administrators do not need to make any configuration changes for this feature. B. Security for the cluster interconnect is invoked automatically as part of a new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c using an autogenerated encryption key that is stored locally on each node of the cluster in an Oracle Wallet and Database administrators or cluster administrators must provide a valid path for the Wallet file. C. Security for the cluster interconnect is invoked by auto-generated server certificates that will be assigned to each cluster node as part of a new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c. D. Database administrators or cluster administrators must provide an encryption key during new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c to secure the interconnect communication. E. Database administrators or cluster administrators must provide a valid server certificate and an Oracle Wallet for each node during new Oracle Grid Infrastructure 19c deployment or an upgrade to Oracle Grid Infrastructure 19c to secure the interconnect communication. Answer: A QUESTION 3 Which three resources are managed using global concurrency control in an Oracle 19c RAC multiinstance database? (Choose three.) A. Database block buffers B. Mutexes C. Redo log buffers D. Latches E. Enqueues F. Cursors Answer: B, D, E QUESTION 4 Examine this command: SQL> CREATE PLUGGABLE DATABASE pdb3 FROM pdb1; Which three conditions must be true for successful execution of this command on a RAC database? (Choose three.) A. 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