Anti Aliase filter between DAC3152EVM and ADS4125EVM

Hi DSP Experts,

I am generating a sine wave of 5Mhz frequency using TSW1400 and DAC3152EVM and I am getting an expected o/p at transformer output.

Now I want to see, how this sine wave is sampled by ADC of ADS4125EVM. 

With TSW1200EVM I am sampling a mentioned sine wave with 25MHz sampling rate.

.. Questions..

1. Can I directly connect an SMA cable between DAC3152EVM o/p and ADS4125EVM i/p ??
2. Do I need to put Anti-Aliasing filter between DAC and ADC EVMs ??
3. What, if I don't use such Anti-Aliasing filter between DAC and ADC EVMs ??
4. What would be the sampling rate for my sine wave input ??

May these are basic questions related ADC/DAC usage, but your answers will help be understand the ADC/DAC usage.

Prashant

Prashant