브리즈번 -> 멜번 으로 내년 2월 19일에 가려는데요 젯스타에서 온라인 예약중 보험들라고 뜨네요- 머 안들어도 된다고 씌여 잇지만요Optional Travel InsuranceJetCover - $9.00You may purchase cover provided by Chartis for costs relating to your Jetstar Booking, Checked Baggage and Trip Delay as described in the policy.

질문 1이거 굳이 안들어도 되겟죠?-Jetsaver
Carry On + 20kg
Checked Bags

이게 20kg 수화물 부칠수잇다는거 맞죠?

예약중간에 Excess Baggage 이게 떠서 헷갈리네요

질문2기내에 가방하나랑 수화물로 케리어 하나 (20Kg) 부칠껀데요

Excess Baggage를 0 Kg 으로 체크해도 돼죠?
Excess Baggage While making your booking, you can pre-purchase additional baggage.
You can pre-purchase excess checked baggage (in addition to your checked baggage allowance) at a discount. All prices are each way per passenger. If you are flying return, the additional baggage selected will be selected for both legs of the journey. Pre-purchased excess baggage is for checked baggage only. For more information, regarding cabin, checked and excess baggage, please click here Purchase of Excess Baggage is non-refundable and non-transferable.

질문3 수화물부칠때 1~2kg 넘는건 봐주나요?

기타 국내선 탈때 알아야할거 알려주세요

감사합니다!