4a - Quality of Service (QoS)

Question 1

Default behavior on the network that processes traffic on a “first come, first serve” basis.

Answer 1

FIFO
First in, first out

Question 2

Provides different priority to different applications, users, or data flows, to guarantee a certain level of performance.

Answer 2

QoS

Question 3

Indicates a service level that enables a program to transmit data at a specified rate and to deliver it within a specified time frame.

Answer 3

QoS Guarantee

Question 4

Goal of QoS

Answer 4

A guaranteed delivery system for network traffic.

Question 5

The amount of time it takes for a packet to reach its destination.

Answer 5

Latency

Question 6

A variation in delay that can seriously affect the quality of streaming audio and video.

Answer 6

Jitter

Question 7

Networking packets that do not make it to the distant end.

Answer 7

Dropped packets

Question 8

When a data stream may be too low for real-time multimedia services due to too many devices using the same resources.

Answer 8

Low Throughput

Question 9

Provides high-quality quantifiable guarantees with bounded (guaranteed minimum) latency.

Answer 9

Guaranteed service

Question 10

Provides high quality quantifiable guarantees without bounded latency.

Answer 10

Controlled load service

Question 11

Two methods of filtering by DSCP

Answer 11

Port number
Deep packet inspection

Question 12

Data traffic that the operator has an expectation of being delivered on time.

Answer 12

Sensitive traffic

Question 13

Traffic that the Internet Service Provider (ISP) deems isn’t sensitive to QoS metrics.

Answer 13

Best effort traffic

Question 14

Generally limited to the delivery of spam and traffic created by worms, botnets, and other malicious attacks.

Answer 14

Undesired traffic