350-701 Practice Question: Secure Network Access, Visibility and Enforcement
This 350-701 practice question tests your understanding of secure network access, visibility and enforcement. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
! Switch configuration snippet
ip access-list extended BLOCK_GUEST
deny ip any 10.10.0.0 0.0.255.255
permit ip any any
!
vlan access-map BLOCK_MAP 10
match ip address BLOCK_GUEST
action drop
vlan access-map BLOCK_MAP 20
action forward
!
vlan filter BLOCK_MAP vlan-list 200
A guest device in VLAN 200 attempts to reach a server at 10.10.1.1. What happens to the traffic?
Refer to the exhibit.
! Switch configuration snippet
ip access-list extended BLOCK_GUEST
deny ip any 10.10.0.0 0.0.255.255
permit ip any any
!
vlan access-map BLOCK_MAP 10
match ip address BLOCK_GUEST
action drop
vlan access-map BLOCK_MAP 20
action forward
!
vlan filter BLOCK_MAP vlan-list 200
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The traffic is dropped
Option B is correct because the VACL 'BLOCK_MAP' is applied to VLAN 200. The access-list BLOCK_GUEST denies traffic from any source to the 10.10.0.0/16 network. Since the destination 10.10.1.1 falls within this range, the traffic is dropped. Option A is incorrect because the ACL denies the traffic. Option C is incorrect because the VACL match occurs. Option D is incorrect because logging is not configured in the VACL.
Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The traffic is permitted
Why it's wrong here
The VACL drops matching traffic.
✗
The traffic is forwarded without any action
Why it's wrong here
VACL is applied and matches.
✓
The traffic is dropped
Why this is correct
Destination 10.10.1.1 matches deny entry.
Related concept
Access ports place end devices into a single VLAN.
✗
The traffic is logged and forwarded
Why it's wrong here
No log action configured.
Common exam traps
Common exam trap: an active trunk can still block the VLAN you need
A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.
Detailed technical explanation
How to think about this question
VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.
KKey Concepts to Remember
Access ports place end devices into a single VLAN.
Trunk ports carry multiple VLANs between switches.
Allowed VLAN lists decide which VLANs can cross a trunk.
Native VLAN mismatch can create confusing symptoms.
TExam Day Tips
→Use show vlan brief to verify access VLANs.
→Use show interfaces trunk to verify trunk state and allowed VLANs.
→Do not treat every same-VLAN issue as a routing problem.
Key takeaway
A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Real-world example
How this comes up in practice
A help-desk technician troubleshoots why a newly connected PC cannot reach shared printers on the same floor. The cable is good, the switch port is active, but the PC is in VLAN 20 and the printers are in VLAN 10. The uplink trunk only allows VLAN 10. A trunk being up does not mean every VLAN crosses it.
What to study next
Got this wrong? Here's your next step.
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related 350-701 questions on switching, trunking, and access-port configuration.
Secure Network Access, Visibility and Enforcement — This question tests Secure Network Access, Visibility and Enforcement — Access ports place end devices into a single VLAN..
What is the correct answer to this question?
The correct answer is: The traffic is dropped — Option B is correct because the VACL 'BLOCK_MAP' is applied to VLAN 200. The access-list BLOCK_GUEST denies traffic from any source to the 10.10.0.0/16 network. Since the destination 10.10.1.1 falls within this range, the traffic is dropped. Option A is incorrect because the ACL denies the traffic. Option C is incorrect because the VACL match occurs. Option D is incorrect because logging is not configured in the VACL.
What should I do if I get this 350-701 question wrong?
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related 350-701 questions on switching, trunking, and access-port configuration.
What is the key concept behind this question?
Access ports place end devices into a single VLAN.
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