That is a great example. (Hope the answer is 'yes', but it still may need to be two different clients needing files from the NAS).
@sfx2000 what do you say?
Want to add one more comment here about Link Aggregation - again, a lot of folks think that using LAG will double speed - and again, I assert it doesn't - it will increate capacity, but a single client, on a single session, even if one have four links in the LAG group, all IP packets have to travel over the same wire - and this goes into how IP is encapsulated by ethernet - and that's how it is... This is how LAG works, and yes, it's counter intuitive to folks that look at RAID or MIMO (in the case of Wireless).
Looking at the diagram above, switch is on the left, and the NAS is on the right - you see two links - but again, these are datalink/phy later links at the MAC level - the IP session sees both as one link - as per LAG - which is what this discussion is about.
At the session level however, it's a single connection from client to server, as such, it's carried thru the transport as a single session, driving down into the stack onto on MAC layer session, which lives on a single wire - the other wire is redundant in a single user/session connection.
So - in usage - Alice's client can have a session, and Bob's client can as well - the nice thing with LAG, is Alice gets her own, while Bob has his own...
So yes, overall thruput (Alice's 1GB session, and Bob's 1GB session) is doubled, Alice will only get 1GB whether Bob is on the NAS or not..
This make things any clearer?