In which of the following phases of the interconnection life cycle as defined by NIST SP 800-47 does the participating organizations perform the following tasks Perform preliminary activities. Examine

Question

Options

• AEstablishing the interconnection
• BDisconnecting the interconnection
• CPlanning the interconnection
• DMaintaining the interconnection

• B
  6% (2)
• C
  91% (30)
• D
  3% (1)

Explanation

Planning the Interconnection (Option C) is correct because NIST SP 800-47 defines this phase as the stage where organizations conduct preliminary activities, examine technical/security/administrative issues, and establish a formal agreement (typically an Interconnection Security Agreement or ISA) governing the interconnection before it is built.

• A (Establishing) is wrong because this phase comes after planning - it involves actually implementing and activating the interconnection based on the agreements already formed.
• B (Disconnecting) is wrong because that phase covers terminating an existing interconnection, including removing access and archiving documentation.
• D (Maintaining) is wrong because that phase focuses on ongoing operations - reviewing, auditing, and updating an interconnection that is already live.

Memory tip: Think of the phases in logical order - Plan → Establish → Maintain → Disconnect. The tasks described (preliminary review + forming an agreement) are clearly pre-implementation, which locks in Planning as the answer. If you see "agreement," "examine issues," or "preliminary," it's always the Planning phase.

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