When a physical port is configured for null encapsulation, many SAPs can be configured using that port.

The statement is false. When a physical port is configured for null encapsulation, it means the port itself acts as the service demarcation point without any additional identifiers like VLAN tags. Because there is no encapsulation identifier to multiplex different services, the entire port is dedicated to a single service. Therefore, only one SAP can be configured on a port using null encapsulation. To configure multiple SAPs on a single physical port, an encapsulation type that provides multiplexing, such as Dot1q, must be used.

This is a True/False question. The statement is demonstrably false based on the definition of null encapsulation in the Nokia Service Router Operating System (SR OS).

1. Nokia 7750 SR OS Services Architecture Guide, Release 21.10.R1, "Service Access Points (SAPs)" section. The documentation specifies that for null encapsulation, "The SAP is the physical port or channel... Only one SAP can be created on a port or channel with null encapsulation."

2. Nokia 7750 SR OS Interface Configuration Guide, Release 21.10.R1, "Port Features" section. This guide explains that null encapsulation mode dedicates the port to a single service, contrasting it with dot1q mode which allows for multiple services via VLAN tagging.