Network Capacities

[Tsefos96]

I would like some help to answer these problem below. I searched online first but i get myself confused. What is the right order to put them? 
On the capacity side, the following array of sizes is possible: "PDU <buffer <cell <frame <packet <ACK <byte <datagram <octet <header. Note: At first, the smallest size appears and at the end the largest. If you do not fully agree, you need to redistribute inequality. Also some elements are variable in size. Examine all possibilities

[Flavio Miranda]

Hi,

 A frame carries a packet, then it is larger then a packet. Same idea for datagram.

A cell, if we are referring to let's say WAN Network, usually has 53bytes, then, it is smaller.

 An ACK is even smaller as it is only the header of a packet.

Byte is even smaller.

  Buffer and  header are variable in size.

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