Which practice best supports mission assurance in cyberspace?

Which practice best supports mission assurance in cyberspace?

• A. Implement redundant networks and automatic failover
• B. Centralize all data in a single high-speed link
• C. Disable all remote access
• D. Eliminate backups

Answer: (A)

Redundancy with automatic failover directly supports mission assurance by maintaining availability and continuity of operations even when part of the network is degraded or attacked. When you have multiple networks or paths and a mechanism that automatically switches to a healthy path, a single failure—whether from a hardware issue, a link problem, or a cyber incident—doesn’t cut off critical communications or access to data and control systems. This keeps essential capabilities up and running and reduces downtime, which is central to resilient operations. The other approaches undermine resilience in different ways. Centralizing data on a single high-speed link creates a chokepoint and a single point of failure; if that link goes down, access to critical information and services can halt. Disabling all remote access eliminates flexibility and the ability to monitor, manage, and respond to incidents from afar, which can severely impede timely recovery and defense. Eliminating backups removes the ability to recover from data loss or corruption, increasing the risk of prolonged outages and mission failure.

Redundancy with automatic failover directly supports mission assurance by maintaining availability and continuity of operations even when part of the network is degraded or attacked. When you have multiple networks or paths and a mechanism that automatically switches to a healthy path, a single failure—whether from a hardware issue, a link problem, or a cyber incident—doesn’t cut off critical communications or access to data and control systems. This keeps essential capabilities up and running and reduces downtime, which is central to resilient operations.

The other approaches undermine resilience in different ways. Centralizing data on a single high-speed link creates a chokepoint and a single point of failure; if that link goes down, access to critical information and services can halt. Disabling all remote access eliminates flexibility and the ability to monitor, manage, and respond to incidents from afar, which can severely impede timely recovery and defense. Eliminating backups removes the ability to recover from data loss or corruption, increasing the risk of prolonged outages and mission failure.