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Question 311 - SY0-601 discussion

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While reviewing the /etc/shadow file, a security administrator notices files with the same values. Which of the following attacks should the administrator be concerned about?

A.
Plaintext
Answers
A.
Plaintext
B.
Birthdat
Answers
B.
Birthdat
C.
Brute-force
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C.
Brute-force
D.
Rainbow table
Answers
D.
Rainbow table
Suggested answer: D

Explanation:

Rainbow table is a type of attack that should concern a security administrator when reviewing the /etc/shadow file. The /etc/shadow file is a file that stores encrypted passwords of users in a Linux system. A rainbow table is a precomputed table of hashes and their corresponding plaintext values that can be used to crack hashed passwords. If an attacker obtains a copy of the /etc/shadow file, they can use a rainbow table to find the plaintext passwords of users.

Reference: https://www.comptia.org/certifications/security#examdetails https://www.comptia.org/content/guides/comptia-security-sy0-601-exam-objectives https://www.geeksforgeeks.org/rainbow-table-in-cryptography/

asked 02/10/2024
koffi .J N tsudze
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