Crucial Exams

ISC2 Certified Secure Software Lifecycle Professional (CSSLP) Practice Question

Your company is deploying a battery-powered IoT environmental monitoring system that uses a multi-hop wireless mesh topology. Because nodes have very limited processing power and often lack any connection to central infrastructure, you must select a way to authenticate neighbors and secure routing traffic. Which key-management approach is MOST appropriate?

  • Rely solely on 802.11i/WPA2 link-layer security negotiated at association to secure and authenticate all mesh traffic

  • Implement certificate-based mutual TLS between nodes using 2048-bit RSA keys issued by an online certificate authority

  • Preload each node with a random subset of keys from a large predistributed key pool so neighbors can establish shared secrets opportunistically

  • Provision every node with a single network-wide symmetric key used for all encryption and authentication

ISC2 Certified Secure Software Lifecycle Professional (CSSLP)
Secure Software Architecture and Design
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