Load Balancing in Virtual & Cloud Systems

1. In an Application Load Balancer, traffic can be routed based on which criteria?

Hostname, path, and HTTP headers only

Only the destination IP address

Server physical location only

Random selection algorithm

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3. What is the relationship between load balancing and cloud elasticity?

Load balancers enable applications to scale dynamically with demand

They are completely unrelated concepts

Load balancers prevent any scaling from occurring

Elasticity eliminates the need for load balancers

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5. Which metric is most important for load balancer decision-making in real-time?

Server purchase date

Current server load and response time

Physical server location

Operating system version

6. In virtualization, what is a hypervisor's role in load balancing?

Distributing CPU and memory resources among VMs

Encrypting all virtual machine traffic

Physically replacing server hardware

Managing only network cables

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8. Which cloud provider service provides managed load balancing for distributed applications?

AWS Elastic Load Balancing (ELB)

Cloud Storage Service

Virtual Machine Manager only

Database replication tool

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10. What is the primary benefit of deploying load balancers across multiple cloud availability zones?

Reduced application licensing costs

Improved availability and disaster recovery

Faster data processing speeds

Elimination of all security threats

11. What is the primary purpose of a load balancer in a virtualized environment?

To distribute network traffic across multiple servers or virtual machines

To encrypt all data traveling between servers

To provide backup power to data centers

To monitor physical server hardware temperatures

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13. What is the main advantage of using a hardware load balancer over software?

Lower cost and easier configuration

Higher throughput and better performance

Better compatibility with all operating systems

Reduced need for network infrastructure

14. Which load balancing algorithm distributes traffic equally among all servers?

Least Connections

Round Robin

IP Hash

Random Selection

15. In cloud computing, what is auto-scaling?

Manually adjusting server capacity monthly

Automatically adding or removing resources based on demand

Scaling database query performance

Increasing network latency proportionally

16. What does failover mean in the context of load balancing?

Redirecting traffic to healthy servers when one fails

Automatically shutting down failed servers

Creating backup copies of all data

Reducing server load by 50 percent

17. Which type of load balancer operates at Layer 4 (Transport Layer)?

Application Load Balancer

Network Load Balancer

Classic Load Balancer

Content-based Load Balancer

18. What is session persistence (sticky sessions) in load balancing?

Ensuring all requests from a client go to the same backend server

Keeping server memory permanently allocated to sessions

Storing session data in encrypted files

Maintaining network connections indefinitely

19. In a cloud environment, what does horizontal scaling involve?

Increasing CPU and RAM on existing servers

Adding more servers to handle increased load

Replacing older hardware with newer models

Upgrading network bandwidth capacity

20. Which load balancing algorithm sends requests to the server with the fewest active connections?

Round Robin

Least Connections

IP Hash

Weighted Round Robin

A+ V14 Load Balancing Across Virtual and Cloud Systems Quiz

1. In an Application Load Balancer, traffic can be routed based on which criteria?

2.

What first name or nickname would you like us to use?

2. In a cloud environment, ____ ensures that if one data center fails, traffic automatically reroutes to another.

3. What is the relationship between load balancing and cloud elasticity?

4. A ____ load balancer makes routing decisions based on application-level data like URLs and hostnames.

5. Which metric is most important for load balancer decision-making in real-time?

6. In virtualization, what is a hypervisor's role in load balancing?

7. What does a ____ do when it temporarily removes a server from the load balancing pool for maintenance?

8. Which cloud provider service provides managed load balancing for distributed applications?

9. The ____ load balancing algorithm uses the client IP address to determine which server receives the request.

10. What is the primary benefit of deploying load balancers across multiple cloud availability zones?

11. What is the primary purpose of a load balancer in a virtualized environment?

12. A load balancer uses ____ to check if servers are operational and available.

13. What is the main advantage of using a hardware load balancer over software?

14. Which load balancing algorithm distributes traffic equally among all servers?

15. In cloud computing, what is auto-scaling?

16. What does failover mean in the context of load balancing?

17. Which type of load balancer operates at Layer 4 (Transport Layer)?

18. What is session persistence (sticky sessions) in load balancing?

19. In a cloud environment, what does horizontal scaling involve?

20. Which load balancing algorithm sends requests to the server with the fewest active connections?