Download Oracle 1z0-915-1 Mock Test Study Material [Q20-Q39]

5/5 - (1 vote)

Download Oracle 1z0-915-1 Mock Test Study Material

1z0-915-1 Questions Prepare with Learning Information

Oracle 1z0-915-1 Exam Syllabus Topics:

Topic	Details
Topic 1	Backing up and restoring DB systems: For database administrators and disaster recovery specialists, this section of the exam covers backing up and restoring a DB system, managing automatic backups, and performing point-in-time recovery.
Topic 2	Data Migrations: For data migration specialists and database administrators, this part of the exam covers creating a DB system with data import, importing data into a DB system, and exporting data from MySQL servers and DB systems.
Topic 3	Managing DB systems: For network administrators and cloud infrastructure specialists, this domain of the exam covers demonstrating a command of DRG and DRG Attachments, applying BGP in the OCI environment, evaluating OCI VPN Services, and validating the various FastConnect products from OCI.
Topic 4	HeatWave Cluster: For database performance specialists and cloud architects, this section of the exam covers
Topic 5	Describe the architecture of the HeatWave cluster, adding a HeatWave cluster to a DB system, and determine whether a query is offloaded to HeatWave cluster for execution.
Topic 6	Read Replicas: For database architects and replication specialists, this domain of the exam covers creating and managing read replicas, describing the read replica load balancer, connecting to a read replica, etc.

NEW QUESTION 20
You want to enable high availability of a stand-alone DB system. Which two conditions are required? (Choose two.)

The DB system delete protection must be enabled.

The DB system crash recovery must be enabled.

The DB system point-in-time recovery must be enabled.

The DB system must be active.

The DB system automatic backup must be enabled.

NEW QUESTION 21
You want to create a second user called admin2 with the same privileges as the administrator specified when creating the DB system.
Which statement helps you achieve this?

CREATE USER admin2 IDENTIFIED BY ‘Password’ DEFAULT ROLE ‘administrator’;

CREATE USER admin2 IDENTIFIED BY ‘Password’; GRANT SUPER ON *.* TO admin2 WITH GRANT OPTION;

CREATE USER admin2 IDENTIFIED BY ‘Password’; GRANT AUDIT_ADMIN,
BACKUP_ADMIN, SESSION_VARIABLES_ADMIN ON *.* TO admin2 WITH GRANT OPTION;

CREATE USER admin2 IDENTIFIED BY ‘Password’; GRANT ALL PRIVILEGES ON *.* TO admin2 WITH GRANT OPTION;

NEW QUESTION 22
Which two are true about data loaded into a MySQL HeatWave cluster? (Choose two.)

Data is replicated across cluster nodes for high availability.

Data is partitioned across cluster nodes for scalability.

Data is stored locally in each cluster node’s solid state disks (SSD) to increase I/O performance.

Data is stored in hybrid columnar format to speed up analytic queries.

Data rows are sorted on the primary key to speed up range search.

NEW QUESTION 23
You want to deploy a high-availability MySQL DB system in a region with multiple availability domains.
Which two types of subnet provide maximum redundancy? (Choose two.)

A public AD-specific subnet

A private regional subnet

A public regional subnet

A private AD-specific subnet

NEW QUESTION 24
You want to create a read replica on a DB system.
Which is true about the read replica?

It must have at least 4 OCPUs.

It must have at least 1 TB of storage

It must be a bare metal shape

lt must have at least 64 GB of memory.

NEW QUESTION 25
Which MySQL HeatWave AutoML routine evaluates a model?

ML_EXPLAIN

ML_EXPLAIN_TABLE

ML_TRAIN

ML_SCORE

ML_PREDICT_TABLE

NEW QUESTION 26
Automatic backup retention of a DB system is disabled. Which operation deletes all automatic backups of the DB system?

Deleting the DB system

Disabling point-in-time recovery

Disabling delete protection

Enabling point-in-time recovery

NEW QUESTION 27
You have an inbound replication channel that replicates data from one DB system to another DB system. Both DB systems are created with the default configuration.
You encountered the following error on the target DB system:

What is the possible cause?

The missingGTID set has been archived to object storage and is no longer available.

The target DB system relay log file destination is full.

The channel has been disabled for more than 2 hours.

The administrator has deleted the binary log files from the source DB system.

NEW QUESTION 28
You have successfully provisioned a MySQL DB system on Oracle Cloud Infrastructure by using OCI Console. You have installed the standard MySQL client libraries and MySQL Shell on your workstation that is not connected to any VPN, FastConnect, or SSH tunnel.
You CANNOT connect directly to the DB system endpoint from your workstation connected to the Internet.
What is the reason?

MySQL DB system allows only SSL-encrypted connections.

MySQL DB system endpoint does not have a public IP address.

MySQL DB system allows only connections through a proxy server.

MySQL DB system cannot use the standard MySQL client libraries.

NEW QUESTION 29
Which two are true about read replica load balancer? (Choose two.)

It has the same endpoint as the DB system.

It distributes connections among the source DB system and all read replicas.

User accounts containing a client host name cannot connect to the read replica load balancer.

It is created when the DB system is first created.

It distributes connections among read replicas.

NEW QUESTION 30
You want to change the configuration of an active stand-alone DB system. The DB system is configured as the target of a channel, and the channel is currently active.
Which sequence of steps must you perform?

Edit the DB system and change the configuration.

Stop the DB system, edit the DB system, change the configuration, and start the DB system.

Delete the channel, edit the DB system, change the configuration, and re-create the channel.

Stop the channel, edit the DB system, change the configuration, and start the channel.

NEW QUESTION 31
The first query has an estimated cost of 100,000,000 and is offloaded to a HeatWave cluster for execution:
SELECT flightno, departure, country FROM flight JOIN airport_geo ON ‘from’=airport_id; The second query has an estimated cost of 10,000 and is NOT offloaded to the Heatwave cluster for execution:
SELECT DISTINCT country FROM airport_geo ORDER BY country;
Which two methods can offload the second query to the Heatwave cluster for execution? (Choose two.)

SET use_secondary_engine=FORCED;

SET secondary_engine_cost_threshold=1000;

SET optimizer_trace=”enabled=on”;

CALL sys.heatwave_load(‘[“airport_geo”]’);

CALL sys.heatwave_advisor(JSON_OBJECT(“auto_enc”, JSON_OBJECT(“mode”, “recommend”)));

NEW QUESTION 32
Which two are available when creating a new MySQL DB system in OCI Console? (Choose two.)

High availability

Lakehouse

Standalone server

Read replica

HeatWave cluster

NEW QUESTION 33
How can you determine the uptime of a DB system?

By using the Audit section in Logging information in the OCI Web console

By checking the DB system details in the OCI Web console

By querying performance_schema.global_status from a connected MySQL client

By executing mysql db-system get –db-system-id with OCI CLI

NEW QUESTION 34
What must you do to minimize a DB system down time caused by automatic maintenance operations?

Create read replicas.

Add HeatWave cluster.

Enable crash recovery.

Enable high availability.

NEW QUESTION 35
Which sequence of steps must you perform to change the configuration of a high-availability DB system?

Disable high availability, edit the DB system, change the configuration, and enable high availability.

Stop the DB system, edit the DB system, change the configuration, and start the DB system.

Edit and change the configuration of all secondary instances, switch over to a secondary instance, andedit and change the configuration of the former primary instance.

Edit the DB system and change the configuration.

NEW QUESTION 36
You have a MySQL DB system with five active read replicas. The workload consists of 5% writes and 95% reads.
Which connection method provides the fastest query response time?

Connect to the source DB system to perform read-only operations.

Connect to a specific read replica to perform read-only operations.

Connect to the read replica load balancer to perform read-only operations.

Connect to the read replica load balancer to perform read/write operations.

NEW QUESTION 37
Which two are benefits of read replicas? (Choose two.)

Reduce query latency.

Reduce down time.

Reduce network latency.

Scale read queries.

Speed up analytical queries.

NEW QUESTION 38
Which two are true about creating a Bastion service to connect to a MySQL DB system? (Choose two.)

The Bastion service must have a public IP address.

The Bastion service must be in the same VCN as the DB system.

The Bastion CIDR block allowlist must include the IP address of all valid client machines.

The Bastion CIDR block allowlist must include the IP address of the DB system.

TheBastion subnet must have an ingress rule to allow stateful connections on the MvSQL DB system port number.

NEW QUESTION 39
Which two methods can you use to import data into a MySQL DB system by using MySQL Shell? (Choose two.)

util.importTable()

util.dumpInstance()

util.dumpSchemas()

util.loadDump()

Most Reliable Oracle 1z0-915-1 Training Materials: https://www.braindumpsit.com/1z0-915-1_real-exam.html

IT Certification Exam Braindumps

Free exam braindumps helps you pass exam for sure.

IT Certification Exam Braindumps

Free exam braindumps helps you pass exam for sure.

Download Oracle 1z0-915-1 Mock Test Study Material [Q20-Q39]

Oracle 1z0-915-1 Exam Syllabus Topics:

Leave a comment Cancel reply