Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
Users can reach the correct website name, but their browsers are redirected to a fake server after the local DNS cache is altered. What attack is most likely?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
DNS poisoning
DNS poisoning changes name-resolution information so users are sent to the wrong IP address. If the cache points a real name to a fake server, DNS poisoning is the most likely cause.
B
Distractor review
Denial of service
Denial of service focuses on making a service unavailable, not silently redirecting users to a fake site.
C
Distractor review
Replay attack
A replay attack reuses captured valid traffic, such as an authentication message, instead of altering DNS records.
D
Distractor review
Port scanning
Port scanning is reconnaissance used to discover open services, not a redirection attack on name resolution.
Common exam trap
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.
Technical deep dive
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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A laptop is suspected of being used in a malware incident. It is still powered on and connected to Wi-Fi. What should the responder do before shutting it down?
Question 2
An employee reports a ransomware note on a file server. The server is still powered on, shares are still being accessed, and management wants service restored as quickly as possible. What should the incident response team do first?
Question 3
An employee reports a ransomware note on a finance laptop. The laptop is still powered on, connected to Wi-Fi, and the user says they were just working in a spreadsheet. Management wants the fastest safe response that also preserves evidence. What should the responder do first?
Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
A branch office uses a flat LAN, and a compromise on one user workstation could spread quickly to finance systems. Management wants finance workstations isolated from general users, but finance staff still need access to a central finance application and network printer. What is the best design change?
FAQ
Questions learners often ask
What does this SY0-701 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: DNS poisoning — DNS poisoning is correct because the attacker is tampering with name resolution so a legitimate hostname resolves to a malicious address. That makes users think they are visiting the right site while actually reaching a fake server. This is a classic network attack because it manipulates the infrastructure that maps names to IP addresses, often through poisoned caches or altered DNS responses. Why others are wrong: Denial of service would disrupt access altogether instead of redirecting traffic. Replay attacks reuse captured data, which does not match altered name resolution. Port scanning is simply discovery activity and does not change DNS behavior. The key clue is the manipulated DNS cache causing users to be sent to the wrong destination.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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