Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
An attacker calls the service desk claiming to be a traveling contractor whose phone was stolen. They know the contractor's manager name and ask for an MFA reset to a new number 'just for today.' Which control would best reduce the success of this attack?
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
Distractor review
Trust any caller who can provide a manager's name and employee ID.
This makes social engineering easier because attacker-supplied details are often available from public sources or prior leaks.
B
Best answer
Require a callback to a previously verified number and ticket approval before reset.
A callback to a known-good number, combined with ticket validation and approval workflow, forces the request to be verified through independent channels. This defeats the attacker’s ability to rely on stolen or guessed details during the call. It is a practical anti-pretexting control because it reduces trust in information provided by the caller alone.
C
Distractor review
Remove MFA so users are less likely to get locked out while traveling.
Removing MFA lowers security significantly and would make account compromise much easier, not harder.
D
Distractor review
Use caller ID alone to confirm the person is legitimate.
Caller ID can be spoofed, so it is not a reliable method for identity verification in service desk workflows.
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
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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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: Require a callback to a previously verified number and ticket approval before reset. — The best control is a callback to a previously verified number with proper ticket approval. The attacker is using a pretext and urgency to pressure the help desk into resetting MFA without independent validation. A known-good callback breaks that attack path because it verifies the request through an out-of-band channel and prevents reliance on caller-provided details that may be stolen or fabricated. Why others are wrong: Trusting employee IDs or manager names is risky because those details can be harvested from directories, social media, or past breaches. Removing MFA would create a much larger security gap and is not an acceptable defense. Caller ID alone is weak because it can be spoofed or redirected, so it should never be the only verification method for account recovery.
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.
Discussion
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