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CHAPTER 4 SASE Components and the Cisco Approach 25 These materials are © 2020 John Wiley & Sons, Inc. Any dissemination, distribution, or unauthorized use is strictly prohibited. Chapter 4 IN THIS CHAPTER » Knowing what to look for in a SASE solution » How Cisco SD-WAN and Cisco Umbrella address core SASE requirements SASE Components and the Cisco Approach I n this chapter, you learn about the key components to look for in a secure access service edge (SASE) solution and read about an example of the approach that Cisco is taking to the conver- gence of cloud security and networking. Key SASE Solution Components Take a look at the key components that comprise a SASE solution. (You can learn more about SASE in Chapter 3.) Software-defined wide area network A software-defined wide area network (SD-WAN) is a virtual wide area network (WAN) that allows companies to use any combina- tion of transport services — including multiprotocol label switch- ing (MPLS), cellular Long-Term Evolution (LTE) and 5G, and broadband — to securely connect users to network locations. It can select the most efficient communication method while reduc- ing costs and simplifying management.