The bond in question may be quoted at different yields (yield to maturity, yield to call, yield to worst). In a real world scenario one would likely not realize the quoted yield, because that assumes all coupon payments can be reinvested at the same initial rate (ie they're compounded as well).
add: the yield quoted is also a function of the bond's coupon (eg California GO 5% due 05/15/25 --> 5% is the coupon) vs its price (in a nutshell based on current interest rates; if the bond's coupon is higher than current rates the bond should be priced at a premium and vice versa).
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