Which networking trend enables each customer to have a separate web server on a single physical CPU?

Which networking trend enables each customer to have a separate web server on a single physical CPU?

• A. virtualization
• B. clustering
• C. load balancing
• D. multicast

Answer: (A)

Virtualization enables multiple isolated environments on a single physical server. A hypervisor assigns each customer their own virtual machine with its own web server, all running on the same physical CPU while remaining isolated from each other. This lets different customers have independent web servers without needing separate physical machines, and resources can be allocated or throttled to meet performance needs. Clustering would spread services across multiple physical machines, not give each customer a separate server on one CPU. Load balancing distributes requests among several servers rather than creating separate, isolated servers on the same hardware. Multicast is about delivering data to many recipients on a network, not hosting isolated per-customer servers.

Virtualization enables multiple isolated environments on a single physical server. A hypervisor assigns each customer their own virtual machine with its own web server, all running on the same physical CPU while remaining isolated from each other. This lets different customers have independent web servers without needing separate physical machines, and resources can be allocated or throttled to meet performance needs.

Clustering would spread services across multiple physical machines, not give each customer a separate server on one CPU. Load balancing distributes requests among several servers rather than creating separate, isolated servers on the same hardware. Multicast is about delivering data to many recipients on a network, not hosting isolated per-customer servers.