QoS (Quality of Service) Quiz (Online)

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Which feature can you implement to reserve bandwidth for VoIP calls across the call path?

CBWFQ

RSVP

Round robin

Which of the following is NOT used for Quality of Service?

DSCP bits

MPLS EXP bits

802.1X

802.1P

The QoS requirements on the CE and PE router differ depending on which factor?

The SLAs offered by the service provider

Whether or not the CE router is managed by the service provider

Whether or not the service provider is using an MPLS core

Whether or not the PE router is managed by the service provider

Which mathematical model is used by traffic policing mechanisms to meter traffic?

Predictor or stacker

FIFO metering

Token Bucket

RED

Which option describes the purpose of traffic policing?

It prioritizes routing protocol traffic

It queues and then transmits traffic that exceeds the CIR

It remarks traffic that is below the CIR

It drops traffic that exceeds the CIR

Quality of Service can alleviate which problems?

Interface buffer overruns

Dropped voice calls during periods of high network utilisation

Link Instability

Insufficient Bandwidth

In which service do we try to avoid traffic congestion?

Both congestion control and quality of service

Neither congestion control nor quality of service

Quality of service

Congestion control

What does traffic shaping do to reduce congestion in a network?

Buffers and queues packets

Queues without buffering packets

Drops packets

Buffers without queuing packets

Which QoS model is the most widely used one today?

Best-Effort

IntServ

None of these

DiffServ

Which of the following is not a QoS Model?

IntServ

DiffServ

Loss

Best Effort