CompTIA CASP+ Practice Test

What is a key concern when performing live migrations of virtual machines over an MPLS network?

1. Sensitive passwords are unencrypted in memory during transport

2. MPLS networks are not reliable

3. Insufficient bandwidth on the MPLS network

4. VLAN configurations are not secure

The correct answer is: Sensitive passwords are unencrypted in memory during transport

When performing live migrations of virtual machines over an MPLS (Multiprotocol Label Switching) network, a key concern is related to the handling of sensitive information, particularly sensitive passwords that may be unencrypted in memory during transport. Live migration involves transferring the entire state of a virtual machine, which includes not only its processes and memory but also any sensitive data being processed at that time. If this sensitive information is not encrypted, it could potentially be intercepted by malicious actors during the migration process. While the reliability of MPLS networks (sometimes questioned due to various factors such as outages or performance issues) and bandwidth limitations are important considerations, they do not directly relate to the exposure of sensitive information in the way unencrypted memory does. VLAN configurations also play a role in network security, but in the context of live migration, the immediate concern is the protection of sensitive data during transport. Thus, the protection of sensitive information, especially during critical processes like live migration, highlights why ensuring that data is encrypted before transmission is crucial in safeguarding against threats and maintaining the integrity and confidentiality of enterprise data.