The 80211n Standard Adds a Feature to CSMA/CA Which Is Necessary

question 8

Multiple Choice

The 802.11n standard adds a feature to CSMA/CA which is necessary for A-MPDU aggregation called which of the following?

• A) frame acknowledgement
• B) node collision protocol
• C) virtual carrier sensing
• D) block acknowledgement

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Definitions:

Sensorimotor Stage

The first stage of Piaget's theory of cognitive development, where infants interact with the environment and learn through trial and error using their senses and motor skills.

Preoperational Stage

A stage of cognitive development in Piaget's theory, during which children from about 2 to 7 years of age develop and engage in symbolic play but struggle with logic and taking the perspective of others.

Concrete Operational

A stage in cognitive development in which children gain the ability to think logically about concrete events and objects.

Imprinting

A rapid learning process that occurs in some animals in a limited time period after birth, leading to recognition and attraction to a particular stimulus or individual.