A network engineer has been contracted to design a network infrastructure for a client's new data center. Prior to beginning the project, the client requests the engineer's company to sign an agreement to protect proprietary information. Which type of document should the engineer's company agree to in order to BEST meet the client's requirement without unnecessarily limiting their own business operations?
Memorandum of understanding (MOU)
Bring your own device (BYOD) policy
Non-disclosure agreement (NDA)
Service-level agreement (SLA)