How to Pass the Nokia 4A0-107 Exam: Comprehensive Nokia Quality of Service Guide and Tips

The DSCP value will be set to af21.

The DSCP value will be set to af23.

The DSCP value will remain as ef.

The EXP value, in the MPLS headers, will be set to 4.

The EXP value, in the MPLS headers, will be set to 3.

Network

Scheduler

Slope

SAP-ingress

Network queue

Multi-field classification can use both MAC criteria and IP criteria in the same SAP-ingress QoS policy.

Behavior aggregate classification can use both lsp-exp and dscp in the same SAP-ingress QoS policy.

Multi-field classification cannot use both IP criteria and IPv6 criteria in the same SAP-ingress QoS policy.

Behavior aggregate classification cannot use both dot1p and lsp-exp in the same SAP-ingress QoS policy.

An egress unicast queue defined in a network queue policy

An ingress unicast queue defined in a SAP-ingress policy

An ingress multipoint queue defined in a SAP-ingress policy

An ingress multipoint queue defined in a network queue policy

DiffServ reserves resources dynamically using the RSVP protocol.

DiffServ only requires packets to be classified into forwarding classes at the first network hop.

DiffServ provides granular differentiation and superior fairness because it processes traffic streams individually.

DiffServ is more scalable it treats traffic streams as aggregates.

A point in the network where EXP bits can be mapped to one of eight predefined FCs, each one with its own queue.

A logical point in a service tunnel where all of customer traffic is aggregated.

A point at which the initial classification of customer traffic occurs.

A point in the network where QoS parameters are discarded in favor of lower-level hardware queuing functions, such as LLI (Link Layer Interleave).

A point in the network where traffic flows from multiple different services are queued together, based on forwarding class.

Negative jitter results in a smaller than expected interval between transmitted packets.

Jitter does not have any effect on the quality of video applications.

Serialization delay is not affected by congestion.

Queuing delay is a fixed form of delay in networks.

16

8

32

48

56

A network policy for every network interface configured on the port.

A slope policy for the port on ingress.

A network queue policy for the corresponding MDA on ingress.

A network queue policy for the port on egress.

It maps customer traffic to forwarding classes on ingress.

It can use customer QoS markings to do the mapping.

The default SAP-ingress policy classifies all traffic into FC “be” with low priority.

It serves the classification, queuing, and marking functions of QoS but does not serve scheduling