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A security analyst is reviewing a new IOC in which data is injected into an...

A security analyst is reviewing a new IOC in which data is injected into an online process. The IOC shows the data injection could happen in the following ways:

• Five numerical digits followed by a dash, followed by four numerical digits; or

• Five numerical digits

When one of these IOCs is identified, the online process stops working. Which of the following regular expressions should be implemented in the NIPS?

A.

^\d{4}(-\d{5})?$

B.

^\d{5}(-\d{4})?$

C.

^\d{5-4}$

D.

^\d{9}$

CompTIA CAS-004 Summary

  • Vendor: CompTIA
  • Product: CAS-004
  • Update on: Jul 17, 2025
  • Questions: 619
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