Which of the following is needed for this system to be a Jackson queue $($circle your answer for each$)?$ If an assumption is inconsistent with being a Jackson queue, classify it as not needed.

Service times at all nodes are from the exponential distribution: NEEDED NOT NEEDED

Finite space for queue at each node: NEEDED NOT NEEDED

Infinite population available for arrivals: NEEDED NOT NEEDED

Deterministic interarrivals from outside of the system: NEEDED NOT NEEDED

B$.$ Which nodes are stable $($circle answer for each$)?$

Kiosk Check In STABLE NOT STABLE

Agent Check In STABLE NOT STABLE

Baggage Weigh In STABLE NOT STABLE

Baggage Security STABLE NOT STABLE

ID Check STABLE NOT STABLE

Initial TSA Screen STABLE NOT STABLE

Detailed TSA Screen STABLE NOT STABLE