Oracle 1Z0-1093-23リアル試験問題テストエンジン問題集トレーニングには57問あります
1Z0-1093-23実際の問題解答PDFには100%カバー率リアル試験問題
質問 # 11
Which two statements are true about cloning a Virtual Machine DB System? (Choose two.)
- A. Cloning only creates a copy of a source Virtual Machine DB system as it exists at the time of the cloning operation, but does not include the storage configuration software and database volumes.
- B. Cloning creates a copy of a source Virtual Machine DB system as it exists at the time of the cloning operation, including the storage configuration software and database volumes.
- C. When creating a clone of the Virtual Machine DB system, you need to specify a new SSH key and admin password.
- D. When creating a clone, you must use the same SSH key and admin password as the source Virtual Machine DB system.
正解：B、C
質問 # 12
Which statement is true about MySQL Database Service?
- A. It is a fully managed Oracle Cloud Infrastructure (QCI) native service.
- B. It is a public cloud service built on MySQL Community Edition.
- C. Its users are responsible for database and operating system patching tasks.
- D. It supports MySQL Enterprise Edition version 5.7 with InnoDB Storage Engine.
正解：A
質問 # 13
Which two external databases can be monitored by the Oracle Cloud Infrastructure (OCI) Database Management Service? (Choose two.)
- A. Oracle 11gR2 Database deployed on an Oracle Private Cloud
- B. Oracle 18c Database deployed on Oracle Exadata Cloud@Customer
- C. Oracle 12cR1 Database deployed on an Oracle Exadata Database Machine
- D. Oracle Autonomous Database 19c deployed on an OCI Tenant
正解：B、C
質問 # 14
You define a maintenance window for your MySQL DB systems.
When the automatic maintenance process takes place, which two activities does the system perform while its status is set to UPDATING?
- A. It upgrades the associated compute instance to the latest Linux operating system version.
- B. It patches the MySQL server itself along with any underlying hardware.
- C. It analyzes, rebuilds, and optimizes MySQL database tables and indexes.
- D. It patches the underlying operating system of the MySQL database.
正解：B
質問 # 15
Which statement is FALSE about updating your Virtual Machine DB System database?
- A. Updating the DB system updates the Grid Infrastructure for two-node RAC DB Systems with Automatic Storage Management (ASM) storage management software.
- B. Ensuring/uOl has 15 GB of free space.
- C. Updating the DB System also updates the operating system.
- D. Updating the DB System does NOT update the operating system.
正解：D
質問 # 16
On the Add HeatWave Cluster dialog, you are asked to provide the shape for the HeatWave nodes. Which detail does the shape selection provide to HeatWave?
- A. The Disk partition count for the HeatWave cluster
- B. The private IP address for the Analytic Cluster
- C. The number of CPUs for the Analytic cluster
- D. The associated database system network
正解：C
解説：
The detail that the shape selection provides to HeatWave is the number of CPUs for the Analytic cluster. This is because the shape determines the amount of CPU and memory resources allocated to each HeatWave node, which affects the performance and scalability of the HeatWave cluster1. The shape also determines the pricing of the HeatWave cluster, as the cost is based on the number of OCPUs used by the HeatWave nodes1. The shape does not provide any information about the associated database system network, the disk partition count, or the private IP address for the HeatWave cluster, as these are not related to the shape selection1. Therefore, the correct answer is D. References:
* 5: Overview of HeatWave - Oracle Help Center
質問 # 17
What permissions do you need to perform actions on a NoSQL table?
- A. NOSQL_TABLE_WRITE, NOSQL_ROWS_INSERT
- B. NOSQL_ROWS_READ, NOSQL_ROWS_DELETE
- C. NOSQL_TABLE_DESTROY, NOSQL_TABLE_ALTER
- D. NOSQL_TABLE_INSPECT, NOSQL_TABLE_UPDATE
正解：A
解説：
To perform actions on a NoSQL table, such as creating, updating, deleting, or querying rows, you need to have the appropriate permissions granted by an IAM policy. The permissions are defined by the combination of the verb and the resource type. For example, the NOSQL_TABLE_WRITE permission allows you to create or update a table, and the NOSQL_ROWS_INSERT permission allows you to insert rows into a table1.
The other options are not correct permissions to perform actions on a NoSQL table. The NOSQL_ROWS_READ and NOSQL_ROWS_DELETE permissions only allow you to read or delete rows from a table, but not to insert or update them1. The NOSQL_TABLE_INSPECT and NOSQL_TABLE_UPDATE permissions only allow you to list or modify the properties of a table, but not to create or delete it1. The NOSQL_TABLE_DESTROY and NOSQL_TABLE_ALTER permissions only allow you to drop or alter a table, but not to create or update it1. References:
* Oracle NoSQL Database Cloud Service Policies Reference
質問 # 18
Which of the following resources can be scaled up and down on your VM cluster on Exadata Cloud@Customer?
- A. CPU, Memory, Local Storage, and Flash Storage
- B. CPU, Memory, Local Storage, and Exadata Storage
- C. CPU, Memory, Local Storage, and Network
- D. CPU, Grid Infrastructure Bandwidth, Memory, Local Storage, and Exadata Storage
- E. CPU, Persistent Memory (PMEM), Local Storage, and Exadata Storage
正解：E
質問 # 19
NoSQL Database Cloud Service supports all three types of big data.
Which is NOT considered big data?
- A. semi-structured data
- B. unstructured data
- C. structured data
- D. free-structured data
正解：D
解説：
Big data is a term that refers to large and complex data sets that are beyond the capacity of traditional data processing systems. Big data can be classified into three types based on the structure and format of the data1:
* Structured data: This is data that has a predefined schema and can be easily stored, queried, and analyzed in relational databases. Examples of structured data include customer records, sales transactions, product catalogs, etc.
* Semi-structured data: This is data that does not have a fixed schema, but has some elements of structure that can be extracted and processed. Examples of semi-structured data include XML, JSON, HTML, log files, etc.
* Unstructured data: This is data that has no structure or format and cannot be easily stored or analyzed in relational databases. Examples of unstructured data include text, images, audio, video, social media
* posts, etc.
Therefore, statement D is incorrect, and statements A, B, and C are correct. Free-structured data is not a valid term for describing big data types. NoSQL Database Cloud Service supports all three types of big data by providing a flexible and scalable data model that can store and query data in various formats, such as JSON, key-value, or fixed-schema2. References: 1: [Oracle Cloud Infrastructure Documentation], Big Data 2:
[Oracle Cloud Infrastructure Documentation], NoSQL Database Cloud Service Overview
質問 # 20
What capability in the OCI Database Management Service is available using Database Groups?
- A. Predict long-term capacity trends for the databases.
- B. Install patches for the databases.
- C. View database log events.
- D. Execute a SQL query for the databases.
正解：D
質問 # 21
You enable automatic backups on your Exadata Cloud@Customer.
Which type of file is NOT backed up by default and is the customer's responsibility to back up?
- A. server parameter file
- B. Transparent Data Encryption (TDE) keystore (wallet)
- C. database control files
- D. database archiveloq files
正解：B
解説：
The type of file that is NOT backed up by default and is the customer's responsibility to back up is the Transparent Data Encryption (TDE) keystore (wallet). This is because the TDE keystore contains the encryption keys that are used to protect the data in the database, and it is not included in the automatic backups feature of Exadata Cloud@Customer1. The customer must manually back up the TDE keystore to a secure location and restore it when needed1. The TDE keystore backup is essential for recovering the encrypted data in the database, as the data cannot be decrypted without the corresponding keys1.
The other types of files, such as database archivelog files, server parameter file, and database control files, are backed up by default by the automatic backups feature of Exadata Cloud@Customer1. The automatic backups feature supports Recovery Service and Object Storage as the backup destination to provide a fully automated cloud backup solution1. The automatic backups feature performs daily incremental backups and weekly full backups of the database, and also backs up the configuration files and metadata of the database1. The customer can also perform on-demand full backups of the database using the Console, the API, or the CLI1. The customer can restore the database from the backups stored in Recovery Service or Object Storage using the Console, the API, the CLI, or the dbaascli utility1. References:
* 3: Back Up and Recovery in Base Database Service - Oracle Help Center
質問 # 22
What statement is FALSE regarding the differences between the Exadata Cloud@Customer X8M and X8 Infrastructure?
- A. X8M has more total OCPUs available than an equivalent X8 configuration.
- B. Both X8M and X8 Exadata System models use InfiniBand for their internal network fabric.
- C. X8 uses InfiniBand for its internal network fabric whereas X8M uses RoCE.
- D. X8M uses Persistent Memory (PMEM).
正解：B
解説：
The statement that both X8M and X8 Exadata System models use InfiniBand for their internal network fabric is false. X8 uses InfiniBand for its internal network fabric whereas X8M uses RoCE (Remote Direct Memory Access over Converged Ethernet)12. RoCE is a faster and more efficient network fabric that reduces latency and increases throughput2. X8M also uses Persistent Memory (PMEM) as an additional tier of storage, which boosts performance by allowing direct access to data in memory123. X8M has more total OCPUs available than an equivalent X8 configuration because it supports more database servers and storage servers per rack13.
References:
* Overview of X8M and X9M Scalable Exadata Infrastructure
* Exadata X8 vs X8M - oracle-mosc - Oracle Community
* Exadata Cloud@Customer X8M: The Best "In Datacenter" Database Cloud Platform
* Exadata Cloud Service X8M-No Database Workload is Too Large
* Oracle Exadata Database Service on Exadata Cloud@Customer X8M
質問 # 23
The /u02 directory containing Oracle Homes (OH) is 80% utilized and you need to free up space in it. You own two Oracle Homes OH193_A and OH193_B with test databases 193A and 193B, respectively. You decide to consolidate both databases into a single Oracle Home (OH193_A) to free up space.
Which two actions must you perform? (Choose two.)
- A. Schedule a downtime window with the team using the 193B database.
- B. Use the Move Database option from the console to relocate the database to the target Oracle Home.
- C. Create a new container database under OH193B and migrate the Pluggable Databases (PDBs) from
193B to 193A. - D. Copy the sqlnet.ora and spfile from OH193_B to OH193_A and restart PDBs.
正解：A、B
解説：
To consolidate two databases into a single Oracle Home, you need to perform the following actions1:
* Schedule a downtime window with the team using the 193B database. This is necessary because you need to stop the database service and detach the pluggable databases (PDBs) from the source Oracle Home before moving them to the target Oracle Home2.
* Use the Move Database option from the console to relocate the database to the target Oracle Home. This is the easiest and fastest way to move the database and its PDBs to a different Oracle Home. You can use the Oracle Cloud Infrastructure Console or the API to initiate the move operation, which will automatically copy the required files, update the configuration, and restart the database service in the target Oracle Home3.
Therefore, statements A and D are correct, and statements B and C are incorrect. Copying the sqlnet.ora and spfile from OH193_B to OH193_A and restarting PDBs is not sufficient to move the database to a different Oracle Home, as it does not update the Oracle Inventory, the Oracle Restart configuration, or the database registry4. Creating a new container database under OH193B and migrating the PDBs from 193B to 193A is not necessary, as you can move the existing PDBs directly to the target Oracle Home without creating a new container database5. References: 1: Oracle Base Database Services 2023 Professional, Section 4.2.2: Moving a Database to a Different Oracle Home 2: Base Database Service, Section 4.2.2.1: Prerequisites for Moving a Database to a Different Oracle Home 3: Base Database Service, Section 4.2.2.2: Moving a Database to a Different Oracle Home 4: [Oracle Database Administrator's Guide], Section 2.4.1: Moving Oracle Database to a New Oracle Home 5: [Oracle Database Administrator's Guide], Section 19.1.1: Overview of Pluggable Database Migration
質問 # 24
Which statement is FALSE related to loading a table into HeatWave?
- A. Data is partitioned by primary key unless data placement keys are defined.
- B. Data is read from InnoDB using batched, multi-threaded reads.
- C. Data is converted into columnar format and sent over the network.
- D. Data is distributed among analytics nodes by slicing tables by vertically.
正解：C
質問 # 25
Which statement is true about scaling storage for a Virtual Machine DB System?
- A. You can independently scale the storage used by the VM DB System but the Available Data storage size cannot be decreased, whereas the Recovery Area storage size can be decreased.
- B. You must concurrently scale up or down the storage used by the VM DB System for the Available Data storage size and the Recovery Area storage size.
- C. You can independently scale the storage used by the VM DB System but the Available Data storage size and Recovery Area storage size cannot be decreased.
C You must concurrently scale up the storage used by the VM DB System for the Available Data storage size and the Recovery Area storage size
正解：C
解説：
You can independently scale the storage used by the VM DB System but the Available Data storage size and Recovery Area storage size cannot be decreased. This is because the VM DB System uses block volumes to store the database data files and the recovery area files, and the block volumes cannot be downsized1. However, you can increase the storage size of the block volumes at any time, either individually or together, to accommodate the growth of your database1. You can also scale the compute resources of the VM DB System independently of the storage resources, by adding or removing CPU cores or changing the shape of the VM DB System1. Scaling the storage or compute resources of the VM DB System does not affect the availability of the database, as the scaling operations are performed online1. References:
* 1: Scaling a Virtual Machine DB System - Oracle Help Center
* Independent Scaling: Oracle VM DB Systems allow you to scale the Available Data storage (the main storage for your database) and the Recovery Area storage (used for backups, Flashback logs, etc.) separately.expand_more This provides flexibility.
* No Decreasing Storage: Once provisioned or scaled up, neither the Available Data storage nor the Recovery Area storage can be scaled pen_spark down.exclamation This is likely to protect data integrity.
質問 # 26
Which are the three strategies to migrate Oracle Database to Oracle Cloud Infrastructure (OCI)? (Choose three.)
- A. Autonomous migration
- B. Migration Workbench
- C. Zero Downtime Migration
- D. Real Application Clusters
- E. GoldenGate
正解：B、C、E
質問 # 27
Which characteristic is NOT a factor that impacts the capacity units for provisioning a NoSQL Database Cloud Service table?
- A. Data model
- B. Durability level
- C. Record size
- D. Query pattern
正解：D
解説：
The characteristic that is NOT a factor that impacts the capacity units for provisioning a NoSQL Database Cloud Service table is the query pattern. The query pattern refers to the frequency and complexity of the queries that are executed on the table. The query pattern does not affect the capacity units, which are based on the write and read throughput and the storage capacity of the table1.
The other options are factors that impact the capacity units for provisioning a NoSQL Database Cloud Service table because:
* A. Record size: The record size affects the write and read units, which are defined as the throughput of up to 1 KB of data per second for a write or read operation. If the record size is larger than 1 KB, then more write or read units are required to achieve the same throughput1.
* B. Durability level: The durability level affects the read units, which are defined as the throughput of up to 1 KB of data per second for an eventual consistent read operation. If the durability level is set to absolute consistent, which guarantees that the data returned is the most recent, then twice as many read units are required to achieve the same throughput1.
* C. Data model: The data model affects the storage capacity, which is defined as the amount of storage space used by the table. The data model determines the number and type of fields in each record, which in turn affects the storage size of each record. The more fields and complex data types in the record, the more storage capacity is required1.
References: 1: Oracle NoSQL Database Cloud Service Capacity Planning
質問 # 28
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Oracle 1Z0-1093-23 認定試験の出題範囲：
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