Data Center Deployment and Management

JNCIP-DC · 50 questions

• A city IT ops lead wants new QFX leafs to boot, fetch configuration, and join the municipal fabric without console staging on every rack. What does Juniper zero-touch provisioning (ZTP) primarily provide in this data-center deployment?
• County DC techs debate whether ZTP requires a pre-staged USB stick on every leaf. Which statement correctly describes network-based ZTP for Juniper DC switches?
• A municipal fabric rollout fails because new leaves obtain DHCP addresses but never retrieve a configuration file. Which missing ZTP element best explains this failure?
• Public-works NOC asks which first-boot behavior starts ZTP on a factory-default Junos data-center switch. Which concept is correct?
• A township wants ZTP only for initial image and configuration, then permanent local management afterward. How should that goal be framed relative to ZTP’s role?
• City security reviewers fear ZTP means switches will pull unauthenticated configuration from anywhere on the Internet. Which description best reflects ZTP’s trust boundary in a Juniper DC design?
• A regional DC build needs identical leaf roles with unique hostnames and management IPs. How does a sound ZTP workflow support that requirement?
• Ops installs a leaf that already has a saved configuration and wonders why ZTP did not run. Which explanation is most accurate?
• A metro DC wants ZTP to upgrade Junos to the fabric standard before applying configuration. Which statement about ZTP scope is correct?
• Helpdesk confuses ZTP with an engineer pushing configuration via NETCONF from a laptop. What is the key distinction?
• A smart-city fabric pod documents ZTP prerequisites before racking. Which set best represents core components commonly required for Juniper ZTP?
• County auditors ask whether adopting ZTP removes the need to plan out-of-band or management-plane reachability. What is the correct assessment?
• A leaf ZTP loop repeatedly fetches the wrong role configuration. Which factor is most critical to correct in the ZTP design?
• A municipal DR site wants ZTP servers local to that site so new gear can bring up if the primary DC path is down. Which placement idea best supports resilient site-local ZTP?
• New leafs in the city hall DC get an IP address but never learn where the configuration file lives. Beyond assigning an address and gateway, what DHCP role is essential for DC ZTP?
• A parks department management VLAN for DHCP is mis-scoped, and new leafs land on the wrong network. What should the deployment design emphasize?
• Ops wonders whether DHCP is only for servers and not for switches in the municipal fabric. Which statement is accurate for ZTP-based DC switch deployment?
• A county fabric uses DHCP relay from the management VRF to a central DHCP server. Why does relay commonly appear in this DC management design?
• Two DHCP servers answer in the municipal management network with conflicting options. What is the most likely ZTP impact?
• A township wants DHCP only during rack-and-stack, then static management addressing in steady state. How should that policy be understood relative to DHCP’s DC role?
• NOC sees DHCP Discover from a new spine but no Offer. Which troubleshooting focus is most appropriate in a DC management context?
• City standards require DHCP logs retained for device identity audits during ZTP. What operational value does that logging provide?
• A lab leaf uses DHCP on a production management VLAN and pulls a production configuration. What design control best prevents this failure mode?
• A municipal IPv6-only management discussion asks whether DHCP-family concepts still matter for ZTP-like automated bring-up. Which framing is most accurate for this bank’s DC deployment focus?
• Helpdesk sets an extremely short DHCP lease and leafs churn management addresses mid-ZTP. What is the operational concern?
• A metro fabric documents which DHCP options point new Junos leaves to the config and image file paths during ZTP. What should operators treat those options as providing?
• A city NOC needs to know when a leaf-spine link flaps before citizen portal SLAs burn. Which monitoring focus best matches that operational need?
• A county asks whether SNMP polling alone is enough for modern leaf-spine health visibility. Which statement best reflects describe-level monitoring practice?
• Municipal ops wants dashboards for BGP underlay session state across spines. Why is that monitoring focus fabric-critical?
• After a change window, a city engineer verifies EVPN overlay health. Beyond interface counters, what should that verification emphasize?
• A township confuses device syslog with traffic analytics. Which distinction should operators apply?
• A public-safety DC requires alerting when optical power on spine uplinks degrades. Which monitoring approach best fits?
• Ops wants to monitor control-plane CPU on leaves during MAC move storms. Why is that resource monitoring relevant in a DC fabric?
• A regional NOC centralizes traps from all municipal DC pods. What monitoring architecture concept does that illustrate?
• City change policy requires pre/post health checks covering routes, tunnels, and VTEPs. What does that policy treat as fabric 'monitoring' for validation?
• A helpdesk ticket only checks ping to a leaf management IP and then declares the fabric healthy. What is the main flaw in that approach?
• A library consortium DC asks for role-based views so network and server teams see different monitoring dashboards. Which concept does that request apply?
• After a blackhole, a postmortem shows missing baseline interface error counters. What monitoring practice was lacking?
• A smart-city fabric wants streaming interface counters instead of five-minute SNMP polls for RoCE storage racks. What purpose does that telemetry choice serve?
• County architects ask what analytics adds beyond raw syslog. Which description is most accurate at describe depth?
• A municipal AI inference cluster needs fabric congestion visibility per queue. Which telemetry focus best matches that requirement?
• Ops enables sensors on Junos leaves but never exports them to a collector. What analytics architecture lesson applies?
• A city compares sFlow-like sampling with counter streaming for its leaves. How should those analytics approaches be distinguished at concept level?
• Compliance wants historical telemetry retained for 90 days after outages. Which analytics operations concept does that requirement highlight?
• The NOC hopes telemetry will automatically remediate BGP failures by itself. What separation should the candidate apply?
• A township enables gRPC-style streaming on Junos for fabric KPIs. At describe depth, what is the township adopting?
• Public works wants EVPN route-scale trends over months. Which analytics use case is that?
• Engineers drown in metrics with no SLOs. What analytics practice should they apply for the DC fabric?
• A metro DC uses telemetry to prove a vendor TAC case with timestamped drops. What analytics role does that illustrate?
• The city cloud team asks if telemetry replaces the need for on-box 'show' commands. Which balance is correct?