Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A security analyst in the SOC is reviewing an alert from the corporate VPN server. The alert indicates that user 'jsmith' authenticated successfully from an IP address in Brazil at 14:30 UTC. The analyst contacts jsmith, who confirms he is physically in the company's headquarters in Chicago and has not remotely accessed the VPN today. The VPN authentication logs show that jsmith's session used a valid smart card certificate for authentication. The analyst checks the certificate revocation list and finds that jsmith's certificate has not been revoked. Which of the following is the most likely explanation for this event?
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
The user's smart card and PIN were stolen, allowing an attacker to authenticate from Brazil.
Correct. Smart card authentication requires possession of the physical card and the PIN. If both are stolen, an attacker can impersonate the user.
B
Distractor review
An attacker performed a pass-the-hash attack using cached credentials from jsmith's workstation.
Incorrect. Pass-the-hash attacks target NTLM authentication hashes, not smart card certificate-based authentication. Smart card authentication uses a private key and certificate, not a password hash.
C
Distractor review
The VPN server's certificate was forged, allowing the attacker to intercept jsmith's credentials.
Incorrect. Forging the VPN server certificate would allow a man-in-the-middle attack to intercept credentials, but it would not allow the attacker to authenticate as jsmith without possessing his smart card and PIN.
D
Distractor review
The user's account password was guessed through a brute-force attack and then used to create a new certificate.
Incorrect. A password alone cannot be used to enroll a new smart card certificate without additional identity proofing and approval from the certificate authority. Brute-forcing the password would not directly enable certificate-based authentication.
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: The user's smart card and PIN were stolen, allowing an attacker to authenticate from Brazil. — Smart card authentication relies on a private key stored on the physical smart card, which is protected by a PIN known only to the user. For an attacker to authenticate as jsmith, they would need both the physical smart card and the correct PIN. This scenario most likely indicates theft of the smart card and compromise of the PIN, allowing the attacker to authenticate from a remote location.
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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