350-701 Network Security Practice Question
An engineer is configuring a Cisco ASA to support a DMZ segment. Which three of the following are best practices for DMZ design? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Place public-facing servers in the DMZ.
DMZ should have a different security level (typically between inside and outside). Traffic from DMZ to inside should be restricted. Services in DMZ should be hardened. The DMZ interface should be a separate physical or VLAN interface.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Place public-facing servers in the DMZ.
Why this is correct
DMZ hosts services accessible from outside.
- ✓
Restrict traffic initiated from the DMZ to the inside network.
Why this is correct
DMZ should not be allowed to initiate connections to inside.
- ✗
Assign the DMZ interface a security level of 0.
Why it's wrong here
Security level 0 is for outside; DMZ typically 50.
- ✓
Implement strict ACLs between outside and DMZ.
Why this is correct
Only necessary traffic should be allowed.
- ✗
Use the same subnet for DMZ and inside networks.
Why it's wrong here
They should be separate subnets for segmentation.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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