Which two features must an engineer consider while selecting the ISR1K with 4 Gb of memory for branches? (Choose two.)

An Enterprise Firewall is a fundamental security feature often deployed on branch routers to protect local networks, and an ISR1K with sufficient memory can support this functionality.

URL filtering is typically part of a more comprehensive security solution like an Enterprise Firewall or dedicated security appliance, but it's not a standalone primary feature choice for the router's memory capacity.

Cisco AMP (Advanced Malware Protection) and AMP Threat Grid are advanced security features that typically require more significant resources or integration with dedicated security appliances/cloud services, potentially exceeding the practical limits or primary design considerations for an ISR1K with 4 GB memory for typical branch deployments.

A vSmart Controller is a core component of the Cisco SD-WAN control plane and runs as a dedicated virtual machine or appliance, not on a branch ISR1K router.