Oracle 1Z0-1093-25 Online Practice Questions and Exam Preparation

Oracle 1Z0-1093-25 Online Questions & Answers

• Question 71:

  When using the OCI Console, which two options are configurable during the initial provisioning of a MySQL HeatWave DB system?

  A. The number of HeatWave nodes.
  B. The MySQL version.
  C. The character set for the database.
  D. The storage size for the database.
  E. The name of the initial database user.
  A. The number of HeatWave nodes.
  B. The MySQL version.

• Question 72:

  Before migrating to MySQL HeatWave, what is the MOST important action to take regarding user accounts and privileges?

  A. Reset all user passwords to default values.
  B. Ensure all user accounts and privileges are compatible with MySQL 8.0, and recreate any incompatible accounts on the target instance.
  C. Delete all user accounts except for the root account.
  D. Migrate all user accounts to use external authentication (e.g., LDAP).
  E. Merge all user accounts into a single 'admin' account.
  B. Ensure all user accounts and privileges are compatible with MySQL 8.0, and recreate any incompatible accounts on the target instance.

• Question 73:

  When migrating to MySQL HeatWave on Oracle Cloud Infrastructure (OCI), what is the recommended method for securely transferring large database backups?

  A. Transferring the backup files directly over the public internet using FTP.
  B. Shipping physical hard drives containing the backup files to the OCI data center.
  C. Using the Oracle Cloud Infrastructure Data Transfer Service with physical storage appliances.
  D. Creating a secure VPN connection and transferring the backup files using scp.
  E. Use of Data Pump with a database link.
  C. Using the Oracle Cloud Infrastructure Data Transfer Service with physical storage appliances.

• Question 74:

  Which statement accurately describes the function of the HeatWave service in relation to a standard MySQL database?

  A. HeatWave is a standalone database system that replaces MySQL, offering enhanced security features.
  B. HeatWave provides an in-memory, massively parallel query accelerator to MySQL, improving analytical query performance.
  C. HeatWave is a specialized version of MySQL designed solely for transactional workloads, optimized for high concurrency.
  D. HeatWave acts as a caching layer in front of MySQL, speeding up access to frequently accessed data.
  E. HeatWave is a clustering solution, where a single MySQL instance is split into multiple parts.
  B. HeatWave provides an in-memory, massively parallel query accelerator to MySQL, improving analytical query performance.

• Question 75:

  How does HeatWave address the challenges of Online Analytical Processing (OLAP) compared to traditional row-based database systems?

  A. HeatWave uses a specialized indexing technique to speed up data retrieval.
  B. HeatWave employs a columnar data format in memory, enabling faster scans and aggregations for complex queries.
  C. HeatWave leverages a distributed caching mechanism to store frequently accessed data.
  D. HeatWave automatically shards the database to distribute the workload across multiple nodes.
  E. HeatWave leverages AI-powered indexing to optimize the data retrieval.
  B. HeatWave employs a columnar data format in memory, enabling faster scans and aggregations for complex queries.

• Question 76:

  Which of the following statements accurately describes the recommended procedure for patching Grid Infrastructure in a BaseDB VM system where the database is NOT managed by Oracle Cloud Infrastructure (OCI)?

  A. Apply the Grid Infrastructure patch directly to the DB system. OCI handles the patching order for all components automatically.
  B. Apply the database patch first, then apply the Grid Infrastructure patch to ensure compatibility.
  C. Apply the Grid Infrastructure patch first, then apply the database patch, after validating the GI is working correctly.
  D. You cannot manually patch Grid Infrastructure in a BaseDB VM system; Oracle Cloud Infrastructure manages all patching operations.
  C. Apply the Grid Infrastructure patch first, then apply the database patch, after validating the GI is working correctly.

• Question 77:

  Which of the following DOES NOT directly contribute to the calculation of provisioned read capacity units (RCUs) required for a NoSQL Database Cloud Service table?

  A. Average record size being read.
  B. Number of reads expected per second.
  C. Complexity of the security roles defined on the table.
  D. Data consistency requirements.
  C. Complexity of the security roles defined on the table.

• Question 78:

  Which of the following is the recommended approach for migrating a large, mission-critical database from an on-premises Exadata system to Exadata Database Service with minimal downtime?

  A. Traditional export/import using Data Pump over a public network.
  B. Creating a physical standby database using Data Guard and switching over to the standby in OCI.
  C. Performing a full backup and restore to a new Exadata Database Service instance.
  D. Using SQL Developer to copy the data over a VPN connection.
  B. Creating a physical standby database using Data Guard and switching over to the standby in OCI.

• Question 79:

  What is the primary processing paradigm employed by the HeatWave query accelerator for analytical workloads?

  A. Row-based processing
  B. Disk-based processing
  C. Columnar processing
  D. Index-based processing
  E. Key-value pair processing
  C. Columnar processing

• Question 80:

  Oracle NoSQL Database Cloud Service supports operations on data based on keys. Which of the following best describes how data is primarily accessed and retrieved within this model?

  A. Data is accessed using structured query language (SQL) with joins and complex filtering conditions.
  B. Data is retrieved by traversing relationships between interconnected nodes in a graph structure.
  C. Data is primarily accessed using the unique key associated with the desired data item.
  D. Data is searched based on the content of the values using full-text indexing and complex search queries.
  E. Data is accessed through a predefined schema that dictates how data is organized and queried.
  C. Data is primarily accessed using the unique key associated with the desired data item.