Relate the pros and cons of defined-benefit plans

What will be an ideal response?

Answer: Under a defined-benefit plan you receive a promised pension payout at retirement. Some employers pay for it 100%. The money grows tax-deferred. The employer bears the risk and you are promised the same amount regardless of the market. You may become vested in these plans, which is what you want in the first place.
In general, the most that any employee gets is 40% to 45% of his or her before-retirement income. Companies can change their position or policy with little notice. The plans lack portability, that is, the ability to move with you to your new job. Very few of them adjust for inflation and some are not funded.