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300-915 · Question #48

Which two security approaches help build a strong authentication scheme? (Choose two.)

The correct answer is C. maximum allowed connections E. session logout because of inactivity. Limiting maximum allowed connections (C) directly strengthens authentication by blocking brute-force and credential-stuffing attacks - without a cap, attackers can hammer a login endpoint indefinitely. Session logout due to inactivity (E) is a core defense because abandoned…

IoT Security and Management

Question

Which two security approaches help build a strong authentication scheme? (Choose two.)

Options

  • Aconnection based on location
  • Bsession IDs accepted only from cookies
  • Cmaximum allowed connections
  • Duser logout
  • Esession logout because of inactivity

How the community answered

(31 responses)
  • A
    3% (1)
  • B
    13% (4)
  • C
    77% (24)
  • D
    6% (2)

Explanation

Limiting maximum allowed connections (C) directly strengthens authentication by blocking brute-force and credential-stuffing attacks - without a cap, attackers can hammer a login endpoint indefinitely. Session logout due to inactivity (E) is a core defense because abandoned sessions are prime targets for hijacking; an automatic timeout shrinks that attack window regardless of user behavior.

Why the distractors are wrong:

  • A (location-based): Geolocation can be a supplemental signal but is trivially bypassed with VPNs and proxies - it's not a foundational authentication control.
  • B (session IDs only from cookies): Good hygiene, but it's a session transport rule, not an authentication scheme strengthener - it prevents session IDs from leaking in URLs but doesn't reinforce the auth process itself.
  • D (user logout): Relies entirely on user action; it's a best practice but provides no systemic protection since users frequently forget or skip it.

Memory tip: Think "C-E = Control + Expire" - you Control abuse with connection limits and Expire stale sessions automatically. Both are enforced server-side without depending on the user to do the right thing, which is the hallmark of a strong authentication scheme.

Topics

#Session Timeout#Connection Limits#Session Security#Authentication

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