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SY0-301 · Question #658

Account lockout is a mitigation strategy used by Jane, the administrator, to combat which of the following attacks? (Select TWO).

The correct answer is C. Dictionary D. Brute force. Account lockout defeats attacks that rely on repeatedly trying many passwords because the account is disabled after a threshold of failed attempts is reached.

Threats, vulnerabilities, and mitigations

Question

Account lockout is a mitigation strategy used by Jane, the administrator, to combat which of the following attacks? (Select TWO).

Options

  • ASpoofing
  • BMan-in-the-middle
  • CDictionary
  • DBrute force
  • EPrivilege escalation

How the community answered

(64 responses)
  • A
    2% (1)
  • B
    2% (1)
  • C
    92% (59)
  • E
    5% (3)

Why each option

Account lockout defeats attacks that rely on repeatedly trying many passwords because the account is disabled after a threshold of failed attempts is reached.

ASpoofing

Spoofing involves impersonating a trusted identity at the network or application layer and is not countered by limiting the number of failed login attempts.

BMan-in-the-middle

Man-in-the-middle attacks intercept communications between two parties and are not dependent on failed authentication attempts that would trigger a lockout.

CDictionaryCorrect

Dictionary attacks systematically attempt passwords from a wordlist, and account lockout stops the attack after the configured failed-attempt threshold is reached, preventing exhaustive guessing.

DBrute forceCorrect

Brute force attacks try every possible password combination, and account lockout limits the number of attempts an attacker can make before the account is locked, rendering the attack infeasible.

EPrivilege escalation

Privilege escalation occurs after authentication has already succeeded and involves exploiting flaws to gain higher permissions, which account lockout does not address.

Concept tested: Account lockout policy countering brute force and dictionary attacks

Source: https://learn.microsoft.com/en-us/windows/security/threat-protection/security-policy-settings/account-lockout-policy

Topics

#account lockout#brute force#dictionary attack#authentication

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