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SK0-005 · Question #72

A server administrator needs to validate the integrity of all system files. Which of the following methods should the administrator use?

The correct answer is A. Run a hash program to generate a checksum for all files on the system and compare it to an. To validate the integrity of system files, an administrator should use a hash program to generate checksums and compare them against known good values.

Security and disaster recovery

Question

A server administrator needs to validate the integrity of all system files. Which of the following methods should the administrator use?

Options

  • ARun a hash program to generate a checksum for all files on the system and compare it to an
  • BRun an encryption program to generate a checksum for all files on the system and compare it to
  • CRun an antivirus program to generate a checksum for all files on the system and compare it to an
  • DRun a sniffer program to generate a checksum for all files on the system and compare it to an

How the community answered

(21 responses)
  • A
    90% (19)
  • C
    5% (1)
  • D
    5% (1)

Why each option

To validate the integrity of system files, an administrator should use a hash program to generate checksums and compare them against known good values.

ARun a hash program to generate a checksum for all files on the system and compare it to anCorrect

Hash programs generate a unique, fixed-size checksum (or hash value) for a file; any alteration to the file, even a single bit, will result in a different checksum. Comparing the current checksum to a previously generated or vendor-provided checksum verifies the file's integrity, ensuring it has not been tampered with or corrupted.

BRun an encryption program to generate a checksum for all files on the system and compare it to

Encryption programs are used to protect data confidentiality, not to generate checksums for integrity validation.

CRun an antivirus program to generate a checksum for all files on the system and compare it to an

Antivirus programs scan for malicious software, not to validate file integrity by comparing checksums against a baseline.

DRun a sniffer program to generate a checksum for all files on the system and compare it to an

Sniffer programs are used for network traffic analysis and have no function in generating or comparing file checksums for system integrity.

Concept tested: File integrity validation with checksums

Source: https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/get-filehash

Topics

#File Integrity#Hashing#Checksums#System Security

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