Solution

Silly Window Syndrome happens when very small amounts of data are sent repeatedly, which reduces network efficiency.

Statement I:

Nagle's Algorithm is used to reduce the sending of small packets.

So, statement I is correct.

Statement II:

Clark's Algorithm is used at the receiver side to avoid advertising very small window sizes.

So, statement II is correct.

Statement III:

Jacobson's Algorithm is related to RTT estimation and timeout calculation, not Silly Window Syndrome.

So, statement III is false.

Statement IV:

Piggy backing is used to combine acknowledgment with outgoing data, but it is not a standard solution for Silly Window Syndrome.

So, statement IV is false.

Correct statements are:

I and II only