Fault Tolerance and High Availability Quiz

Which of the following best describes the purpose of a load balancer in a fault-tolerant network?

• Reduces the cost of deploying multiple servers

• Ensures uninterrupted access by distributing traffic across multiple servers

• Eliminates the need for high-availability configurations

• Maintains uptime by clustering physical servers into one logical unit

What is the primary benefit of using RAID in a server?

• Reduces the need for regular backups

• Provides fault tolerance for storage devices

• Increases CPU processing speed

• Reduces the power requirements for data storage

When designing a fault-tolerant network, what is a key consideration for high availability?

• Minimal use of hardware redundancy

• Automatic failover mechanisms

• Reliance on manual intervention during outages

• Limiting redundancy to save costs

In a system with LBFO (Load Balancing Fail Over), what happens if one network interface card (NIC) fails?

• All connectivity is lost until the NIC is repaired

• The remaining NICs take over to maintain connectivity

• Bandwidth to the device doubles automatically

• Traffic is rerouted to an external connection

How does using multiple internet providers contribute to fault tolerance?

• Increases available bandwidth for all users

• Ensures connectivity if one provider fails

• Simplifies the overall network design

• Reduces the cost of maintaining a network

Why is multipathing considered a robust high-availability solution?

• It requires only one switch for connectivity

• It allows each NIC to connect to a separate switch

• It uses port aggregation to increase bandwidth

• It eliminates the need for additional NICs

What is a common drawback of high-availability systems?

What role does a virtual IP (VIP) play in a load balancer configuration?

• Allows users to connect directly to individual servers

• Simplifies the configuration of back-end servers

• Represents the public-facing IP for incoming connections

• Eliminates the need for monitoring server health

Which redundancy feature ensures uptime in case of a single server's power supply failure?

• Load balancing

• Multipathing

• Redundant power supplies

• RAID

In a high-availability firewall setup, what happens during an automatic failover?

• Traffic is dropped until the primary firewall is restored

• A secondary firewall takes over without interruption

• A manual configuration is required to reroute traffic

• All connected devices reboot automatically