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Cisco QOS Terminology

Fill in the information for the term or fill out the acronym.
Quiz by JRBerger
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Last updated: August 22, 2022
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First submittedAugust 22, 2022
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Hint
Answer
Speed/capacity of link
Bandwidth
Time between sending and receiving a packet
Delay
Variation in one-way delay
Jitter
Number of lost messages
Loss
Users' perception of application
QoE
Non-interactive data traffic
Batch Traffic
Point in path of a packet where QoS can be trusted
Trust Boundary
Prioritizes certain queues over others
Classifier
Cycles through queues in order
Round-Robin Scheduling
More or less packets from each queue are sent each cycle
Weighting
Assigns a minimum amount of bandwidth to each class
CBWFQ
Queue never gets to transmit because LLQ is always active
Queue Starvation
Discards packets if above bit rate threshold
Policers
Holds packets in queues if above bit rate threshold
Shapers
TCP flow control mechanism
Windowing
Hint
Answer
Number of bytes sender can send over TCP connection before a TCP ack is required
Windowing
Drops packets incoming to a full queue
Tail Drop
All packets in queue are dropped
Full Drop
DSCP
Differentiated Services Code Point
ToS
Type of Service
NBAR2
Enhanced Cisco Network Based Application Recognition
CoS
Class of Service
PCP
Priority Code Point
EF
Expedited Forwarding
AF
Assured Forwarding
CS
Class Selector
FIFO
First in First Out
CBWFQ
Class-Based Weighted Fair Queuing
LLQ
Low Latency Queuing
CAC
Call Admission Control
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