Applicable

(Y)es / (N)o

(C)onfidentiality

(I)ntegrity

(A)vailability

RPN

(C+I+A)

(S)atisfactory

L1

M2

H3

L1

M2

H3

L1

M2

H3

(O)ther than satisfactory +##

sc-22

architecture and provisioning for name / address resolution service

assessment objective:

Determine if the information systems that collectively provide name/address resolution service for an organization:

sc-22[1]

are fault tolerant; and

sc-22[2]

implement internal/external role separation.

potential assessment methods and objects:

Examine: [select from: System and communications protection policy; procedures addressing architecture and provisioning for name/address resolution service; access control policy and procedures; information system design documentation; assessment results from independent, testing organizations; information system configuration settings and associated documentation; information system audit records; other relevant documents or records].

Interview: [select from: System/network administrators; organizational personnel with information security responsibilities; organizational personnel with responsibilities for managing DNS].

Test: [select from: Automated mechanisms supporting and/or implementing name/address resolution service for fault tolerance and role separation].