Designing Cisco Network Service Architectures (ARCH, legacy) — Question 12

A network engineer must use an Internet connection to provide backup connectivity between two sites. The backup connection must be encrypted and support multicast.
Which technology must be used?

Answer options

• A. GETVPN
• B. IPsec direct encapsulation
• C. DMVPN
• D. GRE over IPsec

Correct answer: A

Explanation

GETVPN is designed for secure communication and supports multicast traffic, making it the ideal choice for encrypted backup connectivity. While IPsec direct encapsulation and GRE over IPsec provide encryption, they do not inherently support multicast. DMVPN is flexible but does not specifically guarantee multicast support in the same way as GETVPN.