The core idea
Bond yields influence currencies because interest-rate differences affect the relative return available on assets denominated in different currencies.
What is happening underneath
Higher yields can attract capital, but only if investors judge the return attractive after considering inflation, credit risk and expected currency changes.
How investors should read it
Real yields and expected policy paths are often more informative than nominal yields alone.
The same market move can carry different information depending on which maturity, issuer and risk premium is changing. Read the question together with the underlying concepts rather than treating one price move as a universal signal.