Which of the following is NOT among the seven NIST publications listed as used in the past?

• A. NIST SP 800-70
• B. NIST SP 800-53
• C. NIST SP 800-34
• D. FIPS 199

Answer: (A)

Focusing on which NIST publications are commonly treated as foundational guidance for federal info security helps explain this. The big, widely-used standards provide broad, enduring framework: SP 800-53 lays out the security and privacy controls families used to protect systems; SP 800-34 explains how to plan for and sustain continuity of operations when disruptions occur; FIPS 199 defines how to categorize systems by impact level to determine appropriate safeguards. The publication about security configuration checklists is more of a practical, implementation-focused tool rather than a core policy framework. It covers specific configuration details rather than establishing the overarching control structure or categorization guidance that teams rely on across many programs. Because of that narrower scope, it’s not typically included in a historical list of seven fundamental NIST publications used in the past, making it the item that doesn’t fit with the others.