Oracle 1Z0-1085-24 Online Practice Questions and Exam Preparation

Oracle 1Z0-1085-24 Online Questions & Answers

• Question 101:

  Which resource do you manage in an Infrastructure-as-a-services (IAAS) offering?

  A. Operating system
  B. Network
  C. Storage
  D. Servers
  A. Operating system

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  Explanation/Reference:

  Infrastructure as a service (IaaS) is a type of cloud service model in which computing resources are hosted in the cloud. Businesses can use the IaaS model to shift some or all of their use of on- premises or colocated data center

  infrastructure to the cloud, where it is owned and managed by a cloud provider. These infrastructure elements can include compute, network, and storage hardware as well as other components and software.

  How Does IaaS Work?

  In a typical IaaS model, a business--which can be of any size--consumes services like compute, storage, and databases from a cloud provider. The cloud provider offers those services by hosting hardware and software in the cloud. The

  business will no longer need to purchase and manage its own equipment, or space to host the equipment, and the cost will shift to a pay-as-you-go model.

  When the business needs less, it pays for less. And when it grows, it can provision additional computing resources and other technologies in minutes.

  

  Reference: https://www.oracle.com/in/cloud/what-is-iaas/

• Question 102:

  A customer wants a dedicated connection with minimal network latency from their on-premises data center to Oracle Cloud Infrastructure (OCI). Which service should they choose?

  A. Public internet
  B. Virtual Cloud Network Remote Peering
  C. OCI FastConnact
  D. IPSec Virtual Private Network (VPN)
  C. OCI FastConnact

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  Explanation/Reference:

  Oracle Cloud Infrastructure FastConnect provides an easy way to create a dedicated, private connection between your data center and Oracle Cloud Infrastructure. FastConnect provides higher-bandwidth options, and a more reliable and consistent networking experience compared to internet- based connections.

  

  Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Network/Concepts/fastconnectoverview.htm#FastConnect_Overview

• Question 103:

  Which statement about the Oracle Cloud Infrastructure (OCI) shared-security model is true?

  A. You are responsible for securing all data that you place in OCI
  B. You are not responsible for any aspect of security in OCI
  C. You are responsible for securing the hypervisor within OCI compute service
  D. You are responsible for managing security controls within the physical OCI network
  A. You are responsible for securing all data that you place in OCI

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  Explanation/Reference:

  Oracle Cloud Infrastructure offers best-in-class security technology and operational processes to secure its enterprise cloud services. However, for you to securely run your workloads in Oracle Cloud Infrastructure, you must be aware of your security and compliance responsibilities. By design, Oracle provides security of cloud infrastructure and operations (cloud operator access controls, infrastructure security patching, and so on), and you are responsible for securely configuring your cloud resources. Security in the cloud is a shared responsibility between you and Oracle. In a shared, multi-tenant compute environment, Oracle is responsible for the security of the underlying cloud infrastructure (such as data-center facilities, and hardware and software systems) and you are responsible for securing your workloads and configuring your services (such as compute, network, storage, and database) securely. In a fully isolated, single-tenant, bare metal server with no Oracle software on it, your responsibility increases as you bring the entire software stack (operating systems and above) on which you deploy your applications. In this environment, you are responsible for securing your workloads, and configuring your services (compute, network, storage, database) securely, and ensuring that the software components that you run on the bare metal servers are configured, deployed, and managed securely. The responsibilities can be divided as: Reference: https://docs.cloud.oracle.com/en-us/iaas/Content/Security/Concepts/security_overview.htm

  

• Question 104:

  In what two ways does Oracle Cloud Infrastructure (OCI) offer industry leading price-performance?

  A. OCI leverages advanced encryption that results In fast performance
  B. With OCI, pricing Is low and predictable across all regions and services.
  C. OCI hypervisor provides Industry loading performance.
  D. OCI backs performance claims with Service Level Agreements.
  E. OCI does not over subscribe CPU, but only memory.
  B. With OCI, pricing Is low and predictable across all regions and services.
  D. OCI backs performance claims with Service Level Agreements.

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  Explanation/Reference:

  OCI leverages advanced encryption that leads to fast performance, OCI does not over subscribe CPU, but only memory, and OCI hypervisor provides industry leading performance are WRONG. However, OCI does back claims with SLAs and offers predictable pricing for all services. Reference: https://www.oracle.com/cloud/iaas/sla.html https://www.oracle.com/in/cloud/pricing.html

• Question 105:

  Oracle cloud Infrastructure is compliant with which three industry standards?

  A. SOC 1 Type 2 and SOC 2 Type 2 attestations
  B. NERC Critical Infrastructure Protection Standards
  C. Health Insurance Portability and Accountability Act (HIPAA)
  D. ISO 27001:2013 certification
  E. Health Care Compliance Association (HCCA)
  A. SOC 1 Type 2 and SOC 2 Type 2 attestations
  C. Health Insurance Portability and Accountability Act (HIPAA)
  D. ISO 27001:2013 certification

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  Explanation/Reference:

  Here is the official list of all industry standards that OCI complies with : https://www.oracle.com/in/cloud/cloud-infrastructure-compliance/

• Question 106:

  Which two should be considered when designing a fault tolerant solution in Oracle Cloud Infrastructure (OCI)?

  A. ensuring your solution components are distributed across OCI Fault Domains
  B. performing data integrity check when using OCI File Storage Service
  C. writing custom scripts that will monitor your solution
  D. using multiple OCI Availability Domains (AD), where available, to deploy your solution
  E. creating a manual cluster of compute instances
  A. ensuring your solution components are distributed across OCI Fault Domains
  D. using multiple OCI Availability Domains (AD), where available, to deploy your solution

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  Explanation/Reference:

  Creating a manual cluster of compute instances, and Writing custom scripts that will monitor your solution are not valid ways to ensure fault tolerance at all. Also, Performing Data Integrity check when using OCI File Storage Service is not

  valid since OCI takes care of it.

  Therefore, we are left with:

  1) Using multiple OCI Availibility Domains (AD), where available, to deploy your solution - Which is excellent because we have multiple AD's so that if one fails, we have a backup AD!

  2) Ensuring your solution components are distributed across OCI Fault Domains - So that we can protect our deployment against unexpected power failures, AD failure etc.

  Reference:

  https://blogs.oracle.com/cloud-infrastructure/using-availibility-domains-and-fault-domains-to- improve-application-resiliency

• Question 107:

  Which Oracle Cloud Infrastructure (OCI) service can be used to protect sensitive and regulated data in OCI database services?

  A. Oracle Data Guard
  B. OCI Audit
  C. Oracle Data Safe
  D. OCI OS management
  C. Oracle Data Safe

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  Explanation/Reference:

  Oracle Data Safe is a unified control center for your Oracle databases which helps you understand the sensitivity of your data, evaluate risks to data, mask sensitive data, implement and monitor security controls, assess user security, monitor

  user activity, and address data security compliance requirements.

  Whether you're using an Autonomous Database or an Oracle DB system, Oracle Data Safe delivers essential data security capabilities as a service on Oracle Cloud Infrastructure.

  Features of Oracle Data Safe:

  Oracle Data Safe provides the following set of features for protecting sensitive and regulated data in Oracle Cloud databases, all in a single, easy-to-use management console:

  1) Security Assessment helps you assess the security of your cloud database configurations. It analyzes database configurations, user accounts, and security controls, and then reports the findings with recommendations for remediation

  activities that follow best practices to reduce or mitigate risk.

  2) User Assessment helps you assess the security of your database users and identify high risk users. It reviews information about your users in the data dictionary on your target databases, and calculates a risk score for each user. For

  example, it evaluates the user types, how users are authenticated, the password policies assigned to each user, and how long it has been since each user has changed their password. It also provides a direct link to audit records related to

  each user. With this information, you can then deploy appropriate security controls and policies.

  3) Data Discovery helps you find sensitive data in your cloud databases. You tell Data Discovery what kind of sensitive data to search for, and it inspects the actual data in your database and its data dictionary, and then returns to you a list of

  sensitive columns. By default, Data Discovery can search for a wide variety of sensitive data pertaining to identification, biographic, IT, financial, healthcare, employment, and academic information.

  4) Data Masking provides a way for you to mask sensitive data so that the data is safe for non- production purposes. For example, organizations often need to create copies of their production data to support development and test activities.

  Simply copying the production data exposes sensitive data to new users. To avoid a security risk, you can use Data Masking to replace the sensitive data with realistic, but fictitious data.

  5) Activity Auditing lets you audit user activity on your databases so you can monitor database usage and be alerted of unusual database activities.

  Reference:

  https://docs.cloud.oracle.com/en-us/iaas/data-safe/doc/oracle-data-safe-overview.html

• Question 108:

  What does compute instance horizonal scaling mean?

  A. stopping/starting the instance
  B. backing up data to object storage
  C. adding additional compute instances
  D. changing compute instance size
  C. adding additional compute instances

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  Explanation/Reference:

  Cloud Horizontal Scaling refers to provisioning additional servers to meet your needs, often splitting workloads between servers to limit the number of requests any individual server is getting. In a cloud-based environment, this would mean

  adding additional instances instead of moving to a larger instance size.

  Cloud Vertical Scaling refers to adding more CPU or memory to an existing server, or replacing one server with a more powerful server.

  Reference:

  https://cloudcheckr.com/cloud-cost-management/cloud-vs-data-center-what-is-scalability-in-cloud- computing/

  Horizontal scaling means that you scale by adding more machines into your pool of resources whereas Vertical scaling means that you scale by adding more power (CPU, RAM) to an existing machine. An easy way to remember this is to

  think of a machine on a server rack, we add more machines across the horizontal direction and add more resources to a machine in the vertical direction.

  

  With horizontal-scaling it is often easier to scale dynamically by adding more machines into the existing pool -- Vertical-scaling is often limited to the capacity of a single machine, scaling beyond that capacity often involves downtime and

  comes with an upper limit.

  Reference:

  https://medium.com/@abhinavkorpal/scaling-horizontally-and-vertically-for-databases- a2aef778610c

• Question 109:

  Which workload type is NOT optimized for Oracle Autonomous Database on Shared ExadataInfrastructure?

  A. Data warehousing
  B. Mixed workloads
  C. Transaction processing
  D. High-performance computing
  D. High-performance computing

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  Explanation/Reference:

  High-performance computing (HPC) typically involves complex calculations and processing, which are not optimized for Oracle Autonomous Database on Shared Exadata Infrastructure. HPC often requires specialized hardware and configurations for optimal performance.

• Question 110:

  You want to leverage a managed Real Application Cluster (RAC) offering in Oracle Cloud Infrastructure. which OCI Managed database service would you choose?

  A. Autonomous Transaction Processing (shared)
  B. VM DB System
  C. Autonomous Data Warehousing (shared)
  D. Bare Metal DB Systems
  B. VM DB System

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  Explanation/Reference:

  There are 2 types of DB systems on virtual machines:

  A 1-node VM DB system consists of one VM.

  A 2-node VM DB system consists of two VMs clustered with RAC enabled.

  Reference:

  https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Concepts/overview.htm

  Oracle Cloud Infrastructure offers single-node DB systems on either bare metal or virtual machines, and 2-node RAC DB systems on virtual machines. If you need to provision a DB system for development or testing purposes, then a special

  fast provisioning single-node virtual machine system is available.

  You can manage these systems by using the Console, the API, the Oracle Cloud Infrastructure CLI, the Database CLI (DBCLI), Enterprise Manager, Enterprise Manager Express, or SQL Developer.

  Reference:

  https://docs.cloud.oracle.com/en-us/iaas/Content/Database/Concepts/overview.htm