4A0-107 Exam Dumps : Nokia Quality of Service

The policy should be placed in a "shutdown" state before changes are made.

A new network policy should be created and applied to the interface, overwriting the previous policy.

The policy must first be removed from the interface, then modified and re-applied to the interface.

Before the policy can be changed, it must be deleted with the no network qos command.

Before any changes are made to the policy, all network interfaces where the policy is applied have to be shut down.

The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress.

The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.

The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.

The EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.

A packet is accepted into a queue based on its priority and forwarding class.

Buffer admission control limits the number of out-of-profile packets that enter the queue.

Both high priority-only buffer space and WRED can be used in a queue.

Priority is used when a packet enters a SAP-ingress queue.