Answer
The structure is in the attached image. It's correct name is $(E)-2,5-dibromo-3-ethylpent-2-ene$
Work Step by Step
The $cis$ designation does not apply to this compound. It is an $E$ isomer. The structure is in the attached image. It's correct name is $(E)-2,5-dibromo-3-ethylpent-2-ene$