1Z0-997-26 Security Practice Question
Which TWO mechanisms are used to secure data in transit across OCI networking components? (Choose two.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure IPsec VPN tunnels with strong encryption algorithms (e.g., AES-256) for on-premises connectivity.
Data in transit across OCI networking is secured using IPsec VPN tunnels for hybrid connectivity and TLS/SSL encryption for application and service endpoints.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure IPsec VPN tunnels with strong encryption algorithms (e.g., AES-256) for on-premises connectivity.
Why this is correct
IPsec VPNs encrypt all data traversing between on-premises datacenters and OCI VCNs.
- ✗
Transmit all database traffic over unencrypted public internet connections.
Why it's wrong here
Unencrypted public transmission exposes data to sniffing and interception.
- ✗
Rely on plain-text HTTP for all inter-microservice communication within a VCN.
Why it's wrong here
Plain-text internal communication violates zero-trust network principles.
- ✗
Disable VCN security lists to allow unhindered packet sniffing.
Why it's wrong here
Disabling security lists compromises network isolation and security.
- ✓
Enforce TLS (Transport Layer Security) for applications and HTTPS endpoints communicating across services.
Why this is correct
TLS encrypts data in transit for web and API traffic across endpoints.
Quick reference
VPN Protocol Comparison
| Protocol | Port | Encryption | Authentication | Use Case |
|---|---|---|---|---|
| IKEv2 / IPsec | UDP 500 / 4500 | AES-256 | Certificates / PSK | Site-to-site & remote access |
| SSL / TLS VPN | TCP 443 | TLS 1.3 | Certificates / MFA | Clientless remote access |
| L2TP / IPsec | UDP 1701 | AES (IPsec) | PSK / Certificates | Legacy remote access |
| WireGuard | UDP 51820 | ChaCha20 | Public keys | Modern high-performance VPN |
| PPTP | TCP 1723 | MPPE (weak) | MS-CHAPv2 | Legacy — avoid in production |
PPTP is considered insecure. IKEv2/IPsec and SSL VPN are the current recommended options.
About these practice questions
This 1Z0-997-26 question is part of Courseiva's 344-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Oracle exam blueprint
This 1Z0-997-26 practice question is part of Courseiva's free Oracle certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 1Z0-997-26 exam.