easymultiple choiceObjective-mapped

A SIEM correlation rule alerts when a single user account fails to authenticate 20 times in 5 minutes and then succeeds from the same source IP. What is the most likely reason the team should investigate this event?

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A SIEM correlation rule alerts when a single user account fails to authenticate 20 times in 5 minutes and then succeeds from the same source IP. What is the most likely reason the team should investigate 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

Distractor review

The account was probably being used normally because the password was changed

Normal password changes do not usually produce many rapid failures followed by success from the same source.

B

Best answer

The pattern may indicate password guessing or credential stuffing

Repeated failures followed by a success can show automated guessing, and it is worth investigating for compromise.

C

Distractor review

The SIEM is misconfigured because all failed logons are false positives

Failed logons are valid security events; the sequence can be suspicious even if some failures are legitimate.

D

Distractor review

The account is definitely malicious and should be deleted immediately

The pattern is suspicious, but confirmation and scope checking should happen before destructive account actions.

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.

Related practice questions

Related SY0-701 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

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.

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 pattern may indicate password guessing or credential stuffing — The pattern may indicate password guessing or credential stuffing. A burst of failed logons followed by a success from the same IP is a common sign that someone is trying multiple passwords until one works. This does not prove compromise by itself, but it is a strong signal that the account should be reviewed, the source investigated, and related logs correlated to determine whether the login was legitimate. Why others are wrong: A normal password change does not usually create this exact pattern from the same source. The SIEM is not necessarily misconfigured; the alert is based on a meaningful behavioral pattern. Deleting the account immediately is too aggressive without confirmation and may disrupt business if the login was legitimate. Investigation should come before irreversible action.

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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