200-201 Security Policies and Procedures Practice Question
This 200-201 practice question tests your understanding of security policies and procedures. 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.
```
interface GigabitEthernet0/0
ip address 192.168.1.1 255.255.255.0
ip access-group INBOUND in
!
access-list INBOUND deny tcp any host 192.168.1.100 eq 22
access-list INBOUND permit ip any any
```
Refer to the exhibit. A Cisco router is configured with the shown access list applied inbound on the external interface. An external attacker sends a packet with source IP 10.0.0.1, destination IP 192.168.1.100, destination port 22. What will the router do?
Refer to the exhibit.
```
interface GigabitEthernet0/0
ip address 192.168.1.1 255.255.255.0
ip access-group INBOUND in
!
access-list INBOUND deny tcp any host 192.168.1.100 eq 22
access-list INBOUND permit ip any any
```
A
Forward the packet to the next hop
Why wrong: The packet is dropped, not forwarded.
B
Permit the packet only if it is HTTP
Why wrong: The packet is SSH, not HTTP.
C
Permit the packet
Why wrong: The deny rule matches before the permit any any.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Drop the packet
Option A is correct because the ACL has a specific deny for SSH (port 22) to host 192.168.1.100, which matches this packet. The packet will be dropped. Option B is wrong because the permit any any only applies if no previous deny matches. Option C is wrong because there is no such rule about port 80. Option D is wrong because the packet is not forwarded.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 200-201 NAT questions on configuration and troubleshooting.
Security Policies and Procedures — This question tests Security Policies and Procedures — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Drop the packet — Option A is correct because the ACL has a specific deny for SSH (port 22) to host 192.168.1.100, which matches this packet. The packet will be dropped. Option B is wrong because the permit any any only applies if no previous deny matches. Option C is wrong because there is no such rule about port 80. Option D is wrong because the packet is not forwarded.
What should I do if I get this 200-201 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 200-201 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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