Oracle Cloud Infrastructure 1z0-1093-25 Syllabus Exam Questions Answers

C. Private subnet for client network:

Essential for secure access to the databases hosted on the Exadata Database Service instance.

Ensures that client connections are restricted and managed through private IPs.

E. Private subnet for database backups:

Used to securely connect to Oracle Cloud Infrastructure Object Storage for storing backups.

Enables data protection without exposing the backup traffic to the public internet.

Why the other options are incorrect:

A. Public subnet for monitoring:Not required; secure access can be configured through private subnets.

B. Service Gateway:Optional, used for connecting to Oracle services without using the public internet.

D. NAT Gateway:Not mandatory unless specific outbound connectivity is required.

B. Network Security Groups (NSGs) for traffic control:

NSGs allow customers to defineingress and egress rulesto control network traffic.

Enhances security by restricting access to only authorized IP ranges and protocols.

Applied at theVM Clusterlevel to manage connectivity efficiently.

E. Responsibility for OS and database security:

While Oracle manages the infrastructure layer, customers are responsible for securing theoperating system and databasewithin the VM Clusters.

This includes applying security patches, configuring firewalls, and implementing user access controls.

Why the other options are incorrect:

A. Host-based firewalls on Exadata Infrastructure:Oracle, not the customer, configures the infrastructure-level security.

C. Oracle managing all security:Incorrect, as customers manage VM-level security.

D. Access to hypervisor:Customers do not have hypervisor-level access for security configuration.

A. Number of HeatWave nodes:

During provisioning, users specify the number of nodes to allocate for the HeatWave analytical workload.

More nodes enable higher performance for large datasets.

B. MySQL version:

The selected version affects compatibility and available features.

Users can choose from supported versions likeMySQL 8.0.

Why the other options are incorrect:

C. Character set:Typically configured after database creation.

D. Storage size:While storage can be specified, it is not part of HeatWave-specific configuration.

E. Initial database user:Managed post-provisioning, not as part of the initial setup.

Principle of Least Privilege:

The principle of least privilege states that users should only be granted the minimum permissions necessary to perform their tasks. This reduces the risk of accidental or malicious actions that could compromise data integrity or security.

In the context ofOracle NoSQL Database Cloud Service, implementing this principle involves configuringIdentity and Access Management (IAM) policiesto precisely define which users or groups can perform specific actions (such as read, write, delete) on particular tables. By limiting access, the system minimizes potential attack vectors and the impact of compromised accounts.

Why the other options are incorrect:

A:Granting full administrative access violates the least privilege principle and increases security risks.

C:Encryption is important, but it addresses data confidentiality, not access control.

D:Backing up data is good practice, but storing backups in a publicly accessible location is insecure.