Containerization 4.2

Question 1

What is Containerization?

Answer 1

Containerization lets many apps run on one OS without interfering with each other.

Question 2

Q: What happens when a physical server crashes in a shared environment?

Answer 2

A: All organizations and systems hosted on that physical server are affected.

Question 3

Q: Why is a shared physical server a risk for multiple organizations?

Answer 3

A: A single hardware failure can impact all hosted virtual environments.

Question 4

Q: How can one organization create a security risk for others on a shared server?

Answer 4

A: By failing to properly secure its virtual environment, which can expose the shared infrastructure.

Question 5

Q: Why is poor VM security dangerous in multi-tenant cloud environments?

Answer 5

A: Vulnerabilities in one VM can potentially be exploited to affect other tenants.

Question 6

Q: What cloud design practices reduce the impact of server failures?

Answer 6

A: Failover, redundancy, and elasticity.

Question 7

Q: What is failover in cloud environments?

Answer 7

A: Automatically switching to a backup system when a failure occurs.

Question 8

Q: What is redundancy used for in cloud infrastructure?

Answer 8

A: To eliminate single points of failure by duplicating critical components.

Question 9

Q: Why can using the same hypervisor across all VMs be a risk?

Answer 9

A: A vulnerability in that hypervisor could be exploited to affect all hosted VMs.

Question 10

Q: What configuration practice helps secure virtual environments?

Answer 10

A: Proper and secure configuration of VMs and hypervisors.

Question 11

Q: Why must hypervisors be patched and kept up to date?

Answer 11

A: To prevent exploitation of known vulnerabilities.

Question 12

Q: What role does access control play in virtualized environments?

Answer 12

A: It limits who can manage or access VMs and the hypervisor, reducing attack risk.