CompTIA Project+ (PK0-005)Basics of IT and GovernanceHard
A project is establishing a new virtual desktop infrastructure (VDI) for remote employees. The project manager needs to ensure that different departments (e.g., Finance, HR, IT) using the VDI have their network traffic logically separated for security and performance, even though they share the same physical network hardware. Which network technology is best suited for this requirement?
- ANetwork Address Translation (NAT)
- BSoftware-Defined Wide Area Network (SD-WAN)
- CContent Delivery Network (CDN)
- DVirtual Local Area Network (VLAN)
Show answer & explanationAnswer & explanation
Correct answer: D. Virtual Local Area Network (VLAN)
A Virtual Local Area Network (VLAN) allows for the logical segmentation of a single physical network into multiple broadcast domains. This enables different departments to have their network traffic isolated for security and performance purposes, even when sharing the same physical infrastructure.
Why the other options are wrong
- A. NAT translates IP addresses, primarily for conserving public IP addresses or hiding internal network structure, not for internal departmental traffic separation.
- B. SD-WAN optimizes connectivity across geographically dispersed locations, not for local logical segmentation within a datacenter or office.
- C. CDNs distribute content closer to users to improve delivery speed, not for internal network segmentation.
Virtual Local Area Network (VLAN)
A logical grouping of network devices that allows a single physical network to be segmented into multiple broadcast domains. VLANs improve network security, performance, and management by isolating traffic.
- Logically segments networks.
- Enhances security by isolating traffic.
- Improves performance by reducing broadcast domains.
Memory trick: VLANs Virtually segregate LAN traffic.