1Z0-1072-26 Practice Test 15 — 15 Questions

Question 1

You have an Oracle Exadata Database Service on Dedicated Infrastructure. You need to scale the storage server grid independently of the compute servers to accommodate a massive data ingestion project. How should you accomplish this?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Add additional storage servers (storage cells) to the Exadata infrastructure resource.. Exadata Database Service on Dedicated Infrastructure allows you to add storage servers (storage cells) independently of compute servers through the OCI console or APIs.

Answer

Migrate the database to a Bare Metal DB system with larger local NVMe drives.

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Scale up the Exadata VM cluster shape by adding more OCPUs.

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Attach OCI Block Storage volumes directly to the Exadata database nodes via iSCSI.

Question 2

You are planning disaster recovery for an Exadata Database Service on Dedicated Infrastructure. You need to configure Oracle Active Data Guard with real-time apply. What unique capability does Active Data Guard provide over standard Data Guard?wirtschaft

Accepted Answer

It allows read-only queries to run on the physical standby database while real-time redo apply is active.. Active Data Guard allows the physical standby database to be open for read-only queries while simultaneously applying redo received from the primary database in real time.

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It replicates data at the block level across heterogeneous database engines (e.g., PostgreSQL to Oracle).

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It automatically shards the primary database tables across multiple standby regions.

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It allows read-write operations on the standby database while synchronizing with the primary.

Question 3

What is the primary benefit of using Oracle Autonomous Database's autoscaling feature for CPU and storage?

Accepted Answer

It automatically increases OCPU or storage capacity when workload spikes, and scales down when demand drops.. Autoscaling allows the database to automatically allocate additional CPU or storage resources when workload demands increase, without manual intervention.

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It automatically pauses billing when the database is idle for more than one hour.

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It automatically converts your database from Transaction Processing to Data Warehouse workloads.

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It automatically migrates the database to a different cloud region during high load.

Question 4

Which TWO storage options are available when provisioning an Oracle Base Database System?

Accepted Answer

OCI Block Volume storage managed via Automatic Storage Management (ASM). Base Database Systems in OCI support Grid Infrastructure with ASM on OCI Block Volume storage, and Bare Metal systems also feature local NVMe drives.

Answer

Google Cloud Persistent Disk

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Local floppy disk drives

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Amazon S3 object storage buckets

Question 5

Your serverless application built on OCI Functions needs to process events coming from OCI Object Storage when a new file is uploaded. What is the primary mechanism to trigger the function?

Accepted Answer

OCI Events Service. OCI Events service listens to resource state changes and can trigger an OCI Function when an object is created in Object Storage.

Answer

Direct polling of Object Storage buckets by the function container

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Scheduled Cron Jobs in Compute

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API Gateway direct integration

Question 6

You need to run a dedicated compute instance where no other tenant's virtual instances can share the underlying physical hardware. Which OCI service or feature should you use?

Accepted Answer

Dedicated Virtual Machine Hosts. Dedicated Virtual Machine Hosts provide physical servers dedicated solely to your organization, allowing you to run virtual machines on dedicated hardware.

Answer

Bare Metal Instances

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Instance Pools

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Protected Compute Shapes

Question 7

What is the minimum OCPU allocation required when configuring an OCI Ampere A1 Compute flexible shape (VM.Standard.A1.Flex)?

Accepted Answer

1 OCPU. Ampere A1 flexible shapes allow provisioning starting at 1 OCPU up to maximum limits depending on tenancy quotas.

Answer

4 OCPUs

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2 OCPUs

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8 OCPUs

Question 8

You are managing an Oracle Base Database System and need to configure automated backups to retain backups for a custom period (e.g., 60 days). Where can you configure this retention period?

Accepted Answer

In the DB system backup configuration settings within the OCI Console. In OCI Base Database Systems, you can configure automated backup retention and backup windows during creation or by editing the backup configuration in the OCI Console.

Answer

By modifying retention rules on Object Storage lifecycle policies

Answer

Backup retention is fixed at 30 days and cannot be modified.

Answer

By editing the 'init.ora' parameter file using SQL*Plus

Question 9

You are setting up Oracle Data Guard between a primary Base Database System in the us-ashburn-1 region and a standby database in the us-phoenix-1 region. Which networking configuration is mandatory to enable redo transport across regions?

Accepted Answer

Configuring a Dynamic Routing Gateway (DRG) and Remote VCN Peering between the regions. Cross-region Data Guard requires Remote VCN Peering or DRG attachments with appropriate security list rules allowing traffic on listener ports (e.g., port 1521) between the primary and standby subnets.

Answer

A Public Load Balancer fronting the standby database listener

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Enabling NAT gateways in both regions to route private database redo packets

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Installing an IPSec VPN appliance directly on the database node operating systems

Question 10

Which feature of Oracle Autonomous Database automatically inspects and tunes SQL statements, creates indexes, and optimizes execution plans without human intervention?

Accepted Answer

Automatic Indexing and SQL Tuning Advisor. Autonomous Database includes built-in automated SQL tuning and indexing capabilities as part of its self-tuning architecture.

Answer

Oracle Enterprise Manager Tuning Pack

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Database Resource Manager

Answer

Automatic Storage Management (ASM)

Question 11

Which THREE network components must be correctly configured in a VCN to allow an application instance in a private subnet to connect to an Autonomous Database with a private endpoint?

Accepted Answer

Security lists or network security groups allowing traffic on port 1522. Private endpoints require a subnet in the VCN, appropriate security rules, and DNS resolution/service gateways or VCN peering if accessing across VCNs.

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An Internet Gateway attached to the private subnet

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A Public Load Balancer fronting the private IP address

Question 12

A development team needs to deploy an application that requires exactly 6 OCPUs and 32 GB of memory. Which compute option best satisfies this requirement efficiently without wasting resources?

Accepted Answer

VM.Standard.E4.Flex configured with 6 OCPUs and 32 GB of RAM. Flexible shapes allow you to independently configure OCPUs and memory to match exact workload requirements.

Answer

VM.Standard1.16

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BM.Standard.E3.128

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VM.Standard2.8

Question 13

Which OCI service allows you to deploy and manage managed Kubernetes clusters without having to administer the underlying control plane nodes?

Accepted Answer

Oracle Container Engine for Kubernetes (OKE). OCI Container Engine for Kubernetes (OKE) is a fully managed, scalable, and highly available service that you can use to deploy your containerized applications to the cloud.

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OCI Functions

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Compute Instance Pools

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Container Instances

Question 14

You have an instance pool with 5 instances. You update the associated instance configuration with a new custom image containing security patches. How do you apply this new configuration to the existing instances in the pool?

Accepted Answer

Use the instance pool update action to trigger a rolling update or instance replacement with the new configuration.. To update existing instances in an instance pool with a new instance configuration, you must perform a rolling update or recreate the instances in the pool using the instance pool rollout/update action.

Answer

Delete the instance pool and create a completely new pool, as instance configurations cannot be updated once linked.

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Reboot each instance individually via the OS command line.

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Attach the new custom image directly as a secondary boot volume to all running instances.

Question 15

Which OCI compute feature allows you to group multiple compute instances together into a low-latency, high-bandwidth physical placement group?

Accepted Answer

Cluster Placement Groups. Cluster Placement Groups allow you to place compute instances in close physical proximity to each other to achieve low network latency and high-performance interconnects.

Answer

Dynamic Routing Groups

Answer

IAM Security Zones

Answer

Autonomous Linux Pools