QoS (Quality of Service) Quiz (Online)

Which of the following are examples of metrics for QoS?

Jitter, Delay, Packet-loss

SNR, Delay, WRED

Latency, WRED, Attenuation

AIS, Latency, NEXT

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

802.1P

MPLS EXP bits

DSCP bits

802.1X

How does DiffServ deliver QoS across the network?

DiffServ classifies and marks traffic at each node in the network

DiffServ delivers a particular kind of service based on either a flow-based behavior or a per-hop behavior, depending on how the traffic was marked and classified at ingress

When using DiffServ, the network tries to deliver a particular kind of service that is based on the QoS that is specified by each packet

DiffServ tries to deliver a particular level of service on a per-flow basis across the network

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

Round robin

RSVP

CBWFQ

Which of the following QOS functions are performed on the incoming interface?

Buffer Management

Packet Scheduling

Congestion Management

Packet Classification

Which of the following is a Congestion Management Techniques?

Jitter

First-in First-out

TOS Byte

IP Precedence

Which of the following is not a QoS Model?

IntServ

Best Effort

DiffServ

Loss

What is the variation in delay of packets called?

Bandwidth

Delay

Reliability

How many bits are used for QoS in the MPLS Header?

10.

What is a mechanism to control amount and rate of traffic sent to network?

Traffic Control

Traffic Congestion

Traffic Shaping

Traffic Flow