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Question

Difficulty: EasyVirtualization and Containerization Security

An IT administrator needs to deploy multiple isolated application services on a single physical host while minimizing memory overhead and eliminating the need to install a separate guest operating system for each service. Which of the following technologies best fulfills this requirement?

  1. ContainerizationAnswer
  2. B
    Type 1 Bare-metal Hypervisor
  3. C
    Microsegmentation
  4. D
    Stateless Authentication

Answer

Containerization is the correct technology because containers share the host system kernel, providing application isolation with minimal resource overhead compared to running full virtual machines with separate guest operating systems.
Containerization implements operating system-level virtualization, allowing multiple isolated applications to share a single host operating system kernel. This approach drastically reduces memory, CPU, and storage overhead compared to virtual machines.

Step-by-Step Solution

1
Analyze the workload requirements given in the scenario.
The requirement emphasizes lightweight application isolation on a single host without running duplicate guest operating systems.
Distinguishing between kernel-sharing technologies and full hardware virtualization is critical when evaluating system overhead.
2
Compare virtualization architectures based on OS kernel resource allocation.
Containers utilize operating system-level virtualization (sharing the host kernel), whereas virtual machines utilize hardware-level virtualization requiring full guest OS installations.
Eliminating duplicate kernel instances conserves system memory and computing resources.

Key Concept

Containerization vs Virtualization Architecture
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Topics

Virtualization and Containerization Security

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