1Z0-997-26 Security Practice Question
Which THREE methods can be used to establish secure, private connectivity from an on-premises datacenter to an OCI VCN without traversing the public internet? (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
✓
OCI FastConnect dedicated private circuit.
OCI FastConnect, Site-to-Site IPsec VPN, and Oracle Cloud VMware Solution private links provide secure private connectivity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
OCI FastConnect dedicated private circuit.
Why this is correct
FastConnect provides high-speed, private connectivity bypassing the public internet.
- ✗
OCI Internet Gateway attached to a public subnet.
Why it's wrong here
Internet Gateways provide public internet connectivity, not private datacenter links.
- ✓
OCI Site-to-Site IPsec VPN.
Why this is correct
IPsec VPN encrypts and securely routes traffic over the internet or via FastConnect.
- ✓
OCI FastConnect via a Partner virtual circuit.
Why this is correct
Partner FastConnect virtual circuits provide private connectivity via supported network providers.
- ✗
Unencrypted public IP address assignment on database instances.
Why it's wrong here
Public IP assignments expose instances to the internet and do not provide private datacenter connectivity.
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
One of 344 original 1Z0-997-26 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.