Why redundancy prevents costly downtime in SCADA systems - Quick Recap

Recall & Review

beginner

What is redundancy in the context of SCADA systems?

Redundancy means having extra parts or systems ready to take over if the main ones fail, so the system keeps working without stopping.

beginner

How does redundancy help prevent costly downtime?

Redundancy allows the system to switch to backup components instantly when something breaks, avoiding long stops that can cost money and disrupt work.

intermediate

Name two types of redundancy used in SCADA systems.

Common types are hardware redundancy (extra machines or parts) and network redundancy (multiple communication paths).

beginner

What happens if a SCADA system lacks redundancy and a failure occurs?

The system may stop working until the problem is fixed, causing downtime that can lead to lost data, safety risks, and financial losses.

intermediate

Why is automatic failover important in redundancy?

Automatic failover means the system switches to backup parts without waiting for a person, making downtime almost zero and keeping things running smoothly.

What is the main goal of redundancy in SCADA systems?

A To increase system complexity

B To keep the system running during failures

C To reduce system speed

D To save energy

Redundancy is designed to keep the system running even if some parts fail.

Which of these is a type of redundancy?

A Hardware redundancy

B Software deletion

C Data loss

D System shutdown

Hardware redundancy means having extra physical parts ready to use if needed.

What can happen if a SCADA system has no redundancy and fails?

A Faster processing

B Automatic updates

C Costly downtime

D Improved security

Without redundancy, failures cause downtime that can be expensive.

What does automatic failover do?

A Switches to backup systems instantly

B Turns off the system

C Deletes backup data

D Requires manual restart

Automatic failover switches to backup parts without delay.

Why is network redundancy important?

A It removes backup servers

B It slows down data transfer

C It increases power consumption

D It provides multiple communication paths

Network redundancy means having more than one way to send data, so if one fails, others work.

Explain in your own words how redundancy helps prevent costly downtime in SCADA systems.

Think about what happens when a part breaks and how redundancy helps.

Describe the difference between hardware redundancy and network redundancy in SCADA systems.

Consider what parts of the system each type protects.