An organization's web server farm, which is hosted in the cloud with DNS load balancing, is experiencing a spike in network traffic. This has caused an outage of the organization's web server infrastructure. Which of the following should be implemented to prevent this in the future as a mitigation method?
To mitigate the issue of a spike in network traffic causing an outage in an organization's web server farm hosted in the cloud with DNS load balancing, deploying a virtual Application Delivery Controller (vADC) appliance is the most effective solution. A vADC is designed to distribute incoming network traffic efficiently across multiple servers, preventing any single server from being overwhelmed. It offers features such as load balancing, SSL termination, traffic caching, and health monitoring of backend servers, which collectively ensure high availability and resilience of the web server infrastructure during traffic spikes.
Is this D? vADC is a virtual appliance that improves network application performance and safety. In addition to Layer 4 based load balancing, vADC provides balancing traffic based on Layer 7 HTTP application information like URL, HTTP Cookies or any other HTTP request information. DNSSEC helps prevent DNS attacks like DNS cache poisoning and DNS spoofing. DNSSEC does not protect the entire server, it only protects the data exchanged between signed zones.
To mitigate the issue of a spike in network traffic causing an outage in the organization's web server farm hosted in the cloud with DNS load balancing, you should consider **deploying a vADC (Virtual Application Delivery Controller) appliance.** Here's why: 1. **vADC Appliance**: A vADC is designed to manage and distribute traffic to your web servers efficiently. It can handle traffic spikes, distribute incoming requests evenly across your server farm, and provide various traffic management features like load balancing, SSL termination, caching, and more. 2. **Load Balancing**: vADCs are designed to intelligently distribute traffic to backend servers, ensuring that no single server becomes overwhelmed with traffic. They can use various load balancing algorithms to achieve this.
3. **Traffic Optimization**: A vADC can optimize traffic by offloading SSL processing, compressing content, and caching frequently accessed resources. This can improve the performance of your web servers. 4. **Health Monitoring**: vADCs can continuously monitor the health of your backend servers and route traffic away from servers that are experiencing issues, ensuring high availability. 5. **Scalability**: You can easily scale up or down your vADC capacity to accommodate changing traffic patterns. This flexibility is crucial during traffic spikes. While the other options (DLP, microsegmentation, DNSSEC) may have their own importance in a security or network context, they do not directly address the issue of preventing an outage during traffic spikes. Deploying a vADC is a more appropriate solution to handle traffic management and prevent outages caused by sudden increases in network traffic.
D makes the most sense. See Rob69420's comment for why
virtual Application Delivery Controller
VADC virtual Application Delivery Controller
D. Deploy a vADC (virtual Application Delivery Controller) appliance: A vADC can intelligently distribute network traffic across multiple servers, optimizing resource use and preventing any single server from becoming overwhelmed. It can handle spikes in traffic more effectively by balancing the load and providing features such as caching, compression, and traffic shaping. This ensures higher availability and reliability of the web server farm. Deploying a vADC appliance is the most effective solution to mitigate the risk of outages due to spikes in network traffic by efficiently managing and distributing the load across the web server infrastructure.
D. Deploy a vADC Appliance. This solution directly addresses the need for better traffic management and infrastructure resilience in the face of high network traffic loads, which is the core issue in the described scenario.
As Rob69420 said. D.
vADC is the answer, D.