Which is an advantage of a point-to-point leased line?

A point-to-point leased line offers simplicity of configuration because it involves a direct, dedicated connection between two specific endpoints. This eliminates the need for complex routing protocols or switching decisions within the leased line itself, as traffic only has one path to follow. While leased lines offer dedicated bandwidth and security, they are generally high cost compared to other WAN technologies, making "low cost" incorrect. They do not inherently provide "full-mesh capability" as they are point-to-point; creating a full mesh would require multiple individual leased lines, increasing complexity and cost. "Flexibility of design" is also not a primary advantage; while you can design a network using leased lines, the lines themselves are fixed connections, limiting dynamic changes.