ENSA 9.3 -- QoS Algorithms

What does FIFO stand for in networking?

• First In, First Out

• Fast Internet, Fast Output

• First In, Fast Out

• Fast In, First Out

Which of the following is true about WFQ?

• It allows for user-defined traffic classes.

• It schedules interactive traffic to the front of a queue.

• It does not classify packets based on the ToS field.

• It provides strict priority to certain traffic classes.

In CBWFQ, what does the "Weight" parameter determine?

• Maximum packet limit for a class. compared to others.

• Guaranteed minimum bandwidth for a class.

• Amount of bandwidth a class should receive compared to others.

• Delay sensitivity of a class compared to others.

What is the primary purpose of LLQ in CBWFQ?

• To provide strict priority to all traffic classes.

• To allow for user-defined traffic classes.

• To send delay-sensitive traffic like voice and video first.

• To classify packets based on the source IP address.

Which fields are used by WFQ to classify packets? (choose all that apply)

• Type

• Source and/or Destination IP

• ToS

• Source and/or Destination Port Number

• Checksum

What does CBWFQ stand for?

• Class-Based Weighted Fair Queueing

• Class-Based Wide Fair Queueing

• Class-Based Weighted Fast Queueing

• Class-Based Wide Fast Queueing

In CBWFQ, what does the "Bandwidth" parameter specify?

• maximum packet limit for a class.

• guaranteed minimum bandwidth during congestion.

• delay sensitivity of a class.

• priority level of a class.

Which of the following is NOT a criterion for defining traffic classes in CBWFQ?

• Protocols

• Access Control Lists (ACLs)

• Source Port Number

• Packet Size

What is the main difference between FIFO and WFQ?

• FIFO allows for user-defined traffic classes, while WFQ does not.

• FIFO schedules interactive traffic to the front, while WFQ does not.

• FIFO queues packets in order of arrival, while WFQ classifies and schedules them.

• FIFO provides strict priority to certain traffic classes, while WFQ does not.

Which of the following is a feature of WFQ?

• It provides strict priority to voice traffic.

• It fairly shares remaining bandwidth among flows.

• It guarantees minimum bandwidth for each class.

• It uses packet size as a classification criterion.