Place the end of the tape measure on the handrail at the point where the inner surface of the support post and handrail meet. Mark your first measurement at the distance from the post indicated by your answer in Step 5. In this example, place a mark 6 inches from the support post.
Definition: A Tier 1 ISP is an ISP that has access to the entire Internet Region solely via its free and reciprocal peering agreements. Definition: An ISP is entity that provides (usually sells) access to the global Internet. Definition: An Internet Region is a portion of the Internet network typically bounded by a country's geographical boundaries.
Although not a true layer in the strict sense of the three-tier architecture definition, the glue that binds these two classification levels for the OIS, the unclassified level, that data that resides on the NIPRNet and the classified level, that data which resides on the SIPRNet is the OIS's cross domain solution.