While deploying class of service on an EX Series switch, what are two aspects of...

In Junos OS Class of Service (CoS), schedulers are the components that define how traffic in a specific queue is treated before it is transmitted out of an interface.

Queue Priority (Statement C): A scheduler identifies the priority of the queue (e.g., low, medium-low, medium-high, or high). This determines the order in which the hardware handles traffic from different queues.

Buffer Size (Statement D): A scheduler defines the buffer size (amount of memory) allocated to a queue, which can be specified as a percentage, a temporal value (in microseconds), or the remainder of available buffer space. This helps manage bursts of traffic and prevent tail drops.

Other Components: Rate-limiting (Statement A) is typically handled by policers or interface-level shaping, while code translation (Statement B) is the role of rewrite rules.