1. Give you the circuit of buck converter, boost converter and buck-boost converter. Ask you to identify them and explain. 2. Negative feedback OP Amp calculation. 3. Type-C USB RB, RC,RA value design. 4. Calculate Pole & Zero of MOS CS Amplifier. 5. Explain Gain-margin & Phase-gain of bode plot. 6. What happen when microstrip line take a turn. 7. Explain transmission line matching. 8. Blue Tooth 802.11 spec explain. I forgot the rest.