Practice Infrastructure Questions Now
Start a timed practice session focusing on Enterprise Infrastructure topics from the ENCOR question bank.
Start ENCOR Practice Quiz →ENCOR Infrastructure Question Bank (3 Questions)
Browse all 3 practice questions covering Enterprise Infrastructure for the ENCOR certification exam. Each question includes the full answer and a detailed explanation to help you understand the concepts.
- Question 1Virtualization
Which protocol is used for multicast distribution tree building in PIM Sparse Mode?
Show Answer & Explanation
Correct Answer: BExplanation:PIM-SM builds shared trees via the RP (Rendezvous Point) and can switch to shortest-path trees. IGMP manages group membership on the LAN segment.
- Question 2Infrastructure
What is the purpose of PIM (Protocol Independent Multicast) Sparse Mode?
Show Answer & Explanation
Correct Answer: BExplanation:PIM-SM (Sparse Mode): uses explicit join model — routers only receive multicast if they request it. Initial traffic flows via shared tree (*,G) through the Rendezvous Point (RP). Can switch to shortest-path tree (S,G) for optimal delivery. Uses IGMP (host-to-router) and PIM (router-to-router).
- Question 3Infrastructure
What is VRRP and how does it differ from HSRP?
Show Answer & Explanation
Correct Answer: BExplanation:VRRP vs HSRP: VRRP is IEEE (RFC 5798), HSRP is Cisco. VRRP master can own the virtual IP (same as real IP), HSRP requires a separate virtual IP. VRRP has preemption ON by default, HSRP has preemption OFF. VRRP uses multicast 224.0.0.18, HSRP uses 224.0.0.2 (v1) or 224.0.0.102 (v2).
Key Infrastructure Concepts for ENCOR
ENCOR Infrastructure Exam Tips
Enterprise Infrastructure questions in ENCOR are typically scenario-based. Focus on service-level decision making aligned to official exam objectives. Priority concepts: ospf, eigrp, bgp, stp, etherchannel, hsrp.
What ENCOR Expects
- Anchor your answer in select the most practical, secure, and scalable answer for the stated scenario.
- Infrastructure scenarios for ENCOR are frequently mapped to Domain 3 (30%), so read the objective carefully before picking controls or architecture.
- Expect multi-service scenarios where Infrastructure interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated service question.
- When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Professional) and managed-service best practices.
High-Value Infrastructure Concepts
- Know the core Infrastructure building blocks cold: ospf, eigrp, bgp, stp.
- Review the edge-case features and limits for etherchannel, hsrp; these details are commonly used to differentiate answer choices.
- Practice service-integration reasoning: how Infrastructure pairs with Architecture, Virtualization, Network Assurance in real deployment patterns.
- For ENCOR, explain why the chosen Infrastructure design meets reliability, security, and cost expectations better than the alternatives.
Common ENCOR Traps
- Watch for answers that partially solve the requirement but miss operational constraints.
- Questions in Infrastructure often include distractors that look correct for Infrastructure but violate least-privilege, durability, or availability requirements.
- Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
- If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.
Fast Review Checklist
- Can you compare at least two Infrastructure implementation paths and justify which one best fits the scenario?
- Can you map the chosen answer back to Infrastructure (30%) outcomes for ENCOR?
- Can you explain security and access boundaries for Infrastructure without relying on default-open assumptions?
- Can you describe how Infrastructure integrates with Architecture and Virtualization during failure, scaling, and monitoring events?