QoS (Quality of Service) Quiz (Online)

Quality of Service can alleviate which problems?

Link Instability

Insufficient Bandwidth

Interface buffer overruns

Dropped voice calls during periods of high network utilisation

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

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

Packet Scheduling

Congestion Management

Buffer Management

Packet Classification

Which option is the main function of congestion management?

Providing long-term storage of buffered data

Queuing traffic based on priority

Classifying traffic

Discarding excess traffic

Which QoS parameters are required to transfers credential file from one source to a destination?

Jitter

Latency

Bandwidth and Data loss

Best Effort

Which of the following is a Congestion Management Techniques?

TOS Byte

First-in First-out

Jitter

IP Precedence

What is the variation in delay of packets called?

Delay

Bandwidth

Reliability

How does DiffServ deliver QoS across the network?

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

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 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

DiffServ classifies and marks traffic at each node in the network

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

DSCP bits

802.1P

802.1X

MPLS EXP bits

10.

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

Predictor or stacker

RED

Token Bucket

FIFO metering