1Z0-997-26 Multicloud And Hybrid Practice Question
An enterprise is integrating their on-premises network with OCI and requires secure, encrypted hybrid connectivity. Which THREE mechanisms or features can be utilized to secure data in transit between on-premises and OCI? (Choose THREE)
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
✓
MACsec encryption on FastConnect dedicated circuits
Data in transit can be secured using OCI Site-to-Site IPSec VPN, MACsec encryption on FastConnect circuits, or application-layer encryption (such as TLS/HTTPS).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
MACsec encryption on FastConnect dedicated circuits
Why this is correct
MACsec provides Layer 2 encryption across FastConnect dedicated connections.
- ✓
OCI Site-to-Site IPSec VPN tunnels
Why this is correct
IPSec VPN provides native encryption for traffic between on-premises and OCI.
- ✓
Application-level encryption such as TLS 1.3 or HTTPS
Why this is correct
Application-layer encryption secures data regardless of underlying network paths.
- ✗
OCI Internet Gateway packet inspection
Why it's wrong here
Internet Gateways route traffic but do not encrypt on-premises hybrid links.
- ✗
OCI Local Peering Gateways with default encryption
Why it's wrong here
Local Peering Gateways are for VCN peering within OCI, not hybrid on-premises links.
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
Courseiva writes every 1Z0-997-26 question from scratch — 344 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or 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.