Explain how an interest rate swap is mapped into a portfolio of zero-coupon bonds with standard maturities

Question:

Explain how an interest rate swap is mapped into a of zero-coupon bonds with standard maturities for the purposes of a VaR calculation.
Portfolio
A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...