1Z0-997-26 · domain
Security
This domain covers OCI security architecture: IAM policies and dynamic groups, compartment and tenancy isolation, VCN security lists, NSGs, route tables, and gateways, plus Cloud Guard, Security Zones, WAF, and Network Firewall. Questions are scenario-based, asking you to choose the correct policy syntax, traffic path, or inspection design for a stated requirement.
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Start 20-question practice test →What this domain covers
What to know about Security
You must be able to design compartment and VCN isolation, write correct IAM policy statements, and place inspection points so traffic follows the intended path. The single most important thing is getting the policy scope and traffic route exactly right for the stated requirement.
Writing IAM policy statements with compartment hierarchy, conditions, and dynamic group principals
Designing VCN segmentation with security lists, NSGs, route tables, and gateways
Using Cloud Guard, Security Zones, and Vulnerability Scanning for posture management
Watch out for
Common Security exam traps
- ▸Assuming security lists are stateful like NSGs, or forgetting security lists apply at the subnet level to all VNICs
- ▸Writing policies at the wrong compartment level, so child compartments do not inherit the intended access
- ▸Routing internet traffic directly to backend servers instead of through a firewall subnet with correct route tables
Question index
All Security questions (44)
Click any question to see the full explanation, or start a practice session above.
You need to ensure that database backups stored in OCI Object Storage are protected against accidental deletion or ransomware encryption by administrators. Which feature should you enable on the bucket?
Medium2You are hardening an OCI environment where applications running inside Oracle Kubernetes Engine (OKE) pods require access to OCI Object Storage. To adhere to security best practices, you must avoid storing long-lived user credentials or API keys inside the cluster. What is the recommended solution?
Hard3Which THREE actions can be performed using OCI Cloud Guard to improve your cloud security posture? (Choose three.)
Medium4You are configuring a Remote Peering Connection (RPC) between two Dynamic Routing Gateways (DRGs) in different OCI regions. What is required to ensure secure, private data transmission between the two VCNs?
Hard5An administrator needs to configure dynamic groups to authenticate OCI compute instances so they can read secrets from OCI Vault. Which TWO components must be properly configured? (Choose two.)
Hard6An auditor requests evidence that all API activities across your OCI tenancy are being captured, tamper-proofed, and retained for compliance. Which OCI feature should you configure?
Hard7You need to grant a third-party auditor read-only access to view resources in a specific compartment without allowing them to modify anything or access other compartments. Which IAM policy statement achieves this?
Easy8Which OCI identity component allows you to group users who share the same job function and require the same set of security permissions?
Easy9Which THREE features are part of OCI Web Application Firewall (WAF) capabilities? (Choose three.)
Medium10An administrator needs to implement secure, administrative access to private OCI compute instances without exposing them to the public internet. Which TWO methods can be utilized?
Medium11An administrator needs to encrypt sensitive database passwords stored in OCI Object Storage. The company policy requires customer-managed keys with strict rotation schedules. Which service should the administrator use?
Easy12Your development team needs to perform routine maintenance on database compute instances located in a private subnet without exposing SSH ports to the internet or corporate network. Which OCI service should you deploy?
Medium13Which THREE practices are recommended when hardening OCI VCN network security? (Choose three.)
Medium14A security administrator wants to ensure that all virtual machine instances in a specific subnet reject all inbound traffic by default, except for explicitly permitted administrative traffic. Where should this rule be enforced?
Medium15Your organization uses an external identity provider (IdP), such as Microsoft Entra ID (Azure AD), to authenticate users. You need to map IdP group memberships to OCI IAM groups so that users inherit the correct permissions upon login. How is this integration achieved?
Medium16When designing IAM policies at scale in a large OCI enterprise tenancy, which THREE best practices should be followed? (Choose three.)
Medium17Which THREE capabilities are provided by OCI Vault for cryptographic key management? (Choose three.)
Medium18You are designing a defense-in-depth network architecture for a multi-tier application on OCI. Database servers must reside in a private subnet and accept traffic ONLY from application servers running in a separate private subnet within the same VCN. No external traffic should reach the database. How should you configure security controls?
Medium19Your organization mandates that any newly created compartment must automatically enforce rigid security baselines (such as blocking public buckets and disallowing open security list rules). Which OCI feature should you configure to enforce these guardrails at creation time?
Hard20An administrator needs to track who deleted a critical database instance in OCI last week. Which service provides the exact API event history needed for this forensic investigation?
Medium21An internal security audit reveals that database credentials are being passed insecurely in environment variables within OCI Functions. What is the recommended secure pattern to manage these secrets?
Hard22Your security architecture requires segregating production workloads from development workloads using distinct VCNs. However, certain microservices in the development VCN must communicate securely with a database in the production VCN without exposing traffic to the internet. What is the recommended networking construct?
Medium23Your security team requires that all data stored in OCI Object Storage must adhere to strict compliance frameworks preventing accidental or malicious deletion. Which TWO features should be configured? (Choose two.)
Hard24Your company operates a multi-region OCI deployment. Security policies dictate that encryption keys must never leave their respective home regions. How should you design your OCI Vault deployment?
Medium25What is the primary function of OCI Network Security Groups (NSGs)?
Easy26Your development team needs to deploy applications into an OCI Security Zone. They attempt to create a compute instance with a public IP address attached, but the operation fails. Why did this happen?
Medium27An incident response team needs to automatically isolate a compromised compute instance in OCI by revoking its network access while preserving its storage volumes for forensic analysis. Which sequence of actions should be automated using OCI Events and Functions?
Hard28An enterprise customer is designing a multi-tenancy Oracle Cloud Infrastructure (OCI) environment. They need to ensure that dynamic groups can properly authenticate workloads across different compartments without granting overly broad permissions. Which approach aligns with OCI IAM best practices?
Medium29What is the purpose of OCI IAM federation with an external identity provider (IdP)?
Easy30Which OCI service checks compute instances and container images for known software vulnerabilities and malware?
Easy31Which OCI service continuously monitors your cloud resources for security misconfigurations and risky operational behaviors, providing a unified security score for your tenancy?
Easy32Your organization requires all newly created compartments to automatically enforce security best practices, such as prohibiting public Object Storage buckets and ensuring audit logs are never disabled. Which OCI feature is best suited to achieve this?
Medium33Which TWO mechanisms are used to secure data in transit across OCI networking components? (Choose two.)
Hard34An application tier in a private VCN subnet needs to securely access an Oracle Autonomous Database without traversing the public internet. Which OCI networking feature provides the most secure and performant connection?
Hard35Your security team wants to continuously monitor OCI resources for misconfigurations and automatically remediate security violations without manual intervention. Which OCI native service should you configure?
Easy36Which OCI security feature provides a centralized view of security recommendations and allows you to remediate misconfigurations with a single click?
Easy37Your organization's security policy requires that all OCI Block Volume data be encrypted with customer-managed keys that can be rotated, disabled, or deleted independently of the volume lifecycle. You have configured a Vault in OCI Key Management. Which key type must you create and assign to the Block Volume to meet this requirement?
Medium38You are configuring a site-to-site IPSec VPN between your on-premises datacenter and an OCI VCN. To ensure data confidentiality and integrity across the public internet, which encryption algorithms should you mandate in the IPSec configuration?
Medium39An organization has multiple child compartments under a parent compartment. A security architect needs to write an IAM policy that allows a specific developer group to manage compute instances across all child compartments without granting permissions at the root tenancy level. How should this policy be structured?
Hard40Your security team mandates that all traffic entering your OCI VCN from the internet must be inspected by a next-generation firewall before reaching backend web servers. How should you design this architecture?
Hard41You are designing a secure zero-trust architecture for database access in OCI. Developers must authenticate using short-lived tokens rather than long-term database passwords. Which OCI and database feature combination supports token-based authentication?
Hard42An auditor requests a log of all administrative API actions, console logins, and resource modifications performed across your OCI tenancy over the past 365 days. Which OCI service provides this native auditing capability?
Easy43Your security team has discovered that an application running in OCI is susceptible to Cross-Site Scripting (XSS) and SQL injection attacks at the edge. Which OCI service and configuration should you implement to protect the web application without rewriting the core application code?
Hard44Which TWO logging and monitoring features in OCI are essential for maintaining comprehensive security audit trails and threat detection? (Choose two.)
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Frequently asked questions
- What does the Security domain cover on the 1Z0-997-26 exam?
- You must be able to design compartment and VCN isolation, write correct IAM policy statements, and place inspection points so traffic follows the intended path. The single most important thing is getting the policy scope and traffic route exactly right for the stated requirement.
- How many questions are in this domain?
- This page lists all 44 Security questions in the 1Z0-997-26 question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
- What is the best way to practise this domain?
- Start with a short focused session (10 questions) to identify gaps, then work through explanations. Repeat with a longer session once the weak areas feel solid.
- Can I practise only Security questions?
- Yes — the session launcher on this page filters questions to this domain only. Choose any session length for inline explanations and scoring.