N10-009 · Question #377
Which of the following is the most cost-effective way for a network administrator to establish a persistent, secure connection between two facilities?
The correct answer is A. Site-to-site VPN. A site-to-site VPN uses the public internet to create a secure and encrypted connection between two locations. It is persistent, scalable, and far more cost-effective than a dedicated line. GRE tunnel provides tunneling but lacks native encryption and is less secure unless…
Question
Which of the following is the most cost-effective way for a network administrator to establish a persistent, secure connection between two facilities?
Options
- ASite-to-site VPN
- BGRE tunnel
- CVXLAN
- DDedicated line
How the community answered
(20 responses)- A85% (17)
- B10% (2)
- C5% (1)
Explanation
A site-to-site VPN uses the public internet to create a secure and encrypted connection between two locations. It is persistent, scalable, and far more cost-effective than a dedicated line. GRE tunnel provides tunneling but lacks native encryption and is less secure unless combined with IPsec. VXLAN is used for extending Layer 2 networks over Layer 3, mainly in data centers, and is more complex and not cost-focused. Dedicated line (e.g., leased line) is secure and reliable but very expensive compared to VPNs. Site-to-site VPN provides the best balance of security and cost-effectiveness.
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