a2a
FDE interview questions tagged a2a, across every topic.
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Concepts behind "a2a"
The curriculum that explains the ideas these questions test.
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Agent Gateways (AI, LLM and MCP Gateways)An agent gateway is the one network hop every model call, MCP tool call and agent-to-agent request passes through, so identity, per-tool authorization, rate limits, cost metering and audit happen in one place instead of inside each agent. It decides whether a customer's security team can approve agents at all, and it is easy to build wrong by treating it as a reverse proxy.🤖 Retrieval & Agents🔒 Premium
Advanced
Agent Registries: Discovery, Inventory and the Kill SwitchAn agent registry is the system of record for agents and the tools they use: who owns each one, what it may do, which version is live, and how to switch it off. Two different things share the name, a discovery catalog like the MCP Registry and an enterprise inventory that a gateway enforces, and confusing them is how a company ends up with hundreds of agents nobody can list.🤖 Retrieval & Agents🔒 Premium