ITPEC FE Morning April 2018 Question 45
ITPEC FE Morning April 2018 — Question 45 of 80
VLAN (Virtual LAN) — logical network segmentation to reduce broadcast traffic
VLAN splits a physical switch into separate broadcast domains. Devices in different VLANs cannot communicate at Layer 2 without a router, which reduces unnecessary network traffic by containing broadcasts within each VLAN.
Correct answer: b) In order to reduce network traffic
Why not others:
- a) Obtaining an IP address is the job of DHCP, not VLAN
- c) Remote access to an intranet from a public network is done via VPN
- d) Virtual memory is an OS-level concept (RAM + disk), unrelated to networking
Key rule: VLAN = broadcast domain isolation → less traffic. Don't confuse with VPN (remote access) or DHCP (IP assignment).
AI-generated — may contain errors
The original exam layout is preserved in the image so diagrams, formulas, tables, and code remain accurate.
This question comes from an official ITPEC past paper. ITPEC Practice is an independent study tool and is not affiliated with ITPEC. See the official FE past-paper collection or Report an issue.