Refer to the Exhibit

question 40

Multiple Choice

Refer to the exhibit. A network engineer is implementing QoS services. Which two statements about the qos-group keyword on Cisco IOS XR are true? (Choose two.)

• A) It marks packets for end-to-end QoS policy enforcement across the network.
• B) QoS group marking occurs on the ingress.
• C) The QoS group numbering corresponds to priority level.
• D) QoS group can be used in fabric QoS policy as match criteria.
• E) It cannot be used with priority traffic class.

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Definitions:

Euphotic Zone

The layer of the ocean where sunlight is sufficient for photosynthesis, supporting a majority of marine life.

Ecological Service

Benefits to humans provided by natural ecosystems, including pollination, water purification, climate regulation, and nutrient cycling.

Freshwater Systems

Natural bodies of water that have low salt concentrations, such as rivers, lakes, streams, and underground aquifers, crucial for drinking water, agriculture, and habitats.

Nutrient Cycling

The movement and exchange of organic and inorganic matter back into the production of living matter, recycling elements and nutrients through the biosphere.