Cisco Certified Internetwork Expert (CCIE) Practice Test

Which three transports have been defined for SNMPv3? (Choose three)

1. IPsec secured tunnel

2. SSL

3. TLS

4. SSH

The correct answer is: TLS

In the context of SNMPv3, which is designed to provide enhanced security features for network management, three key transports have been established for securing communications. TLS, or Transport Layer Security, is one of the three transports defined for SNMPv3. It is a cryptographic protocol designed to provide communications security over a computer network. TLS ensures that data packets are encrypted before being sent, thus maintaining confidentiality and integrity. Utilizing TLS for SNMPv3 helps to secure the management traffic, safeguarding it against eavesdropping and tampering. Other secure transport mechanisms, such as IPsec secured tunnels, are also commonly mentioned in discussions of SNMPv3, as they can secure the entire IP packet as it travels across the network. While SSL was historically considered for secure communications, it has largely been supplanted by TLS due to security vulnerabilities in older SSL versions. SSH is primarily used for secure access to network devices rather than specifically for SNMPv3 transports, focusing more on terminal access than on management traffic. By focusing on TLS, you align with the current standards for SNMPv3 security practices, making it a correct choice among the provided answers.