Page 1 of 145
CCNP ENTERPRISE 350-401 ENCOR & 300-410
ENARSI 2026-2027 MEGA TEST BANK | 227
LATEST PRACTICE QUESTIONS WITH 100%
VERIFIED ANSWERS & DETAILED RATIONALES
| CISCO CERTIFIED NETWORK PROFESSIONAL
(CCNP) CERTIFICATION PREP | UPDATED FOR
V1.2 SYLLABUS | GRADED A+ SOLUTIONS
# SECTION 1.0: ARCHITECTURE (15%)
## 1.1 Enterprise Network Design & Hierarchical Models
### Question 1
A network architect is designing a new enterprise campus network that must support 5,000 users
across multiple buildings. The design requires high availability, modularity, and simplified
troubleshooting. Which hierarchical design model best meets these requirements?
A. Spine-Leaf architecture with equal-cost multipathing
B. Three-tier hierarchical model with Core, Distribution, and Access layers
C. Flat switched architecture with all devices in a single Layer 2 domain
D. Collapsed core model with Distribution and Core combined
**Correct Answer: B**
,Page 2 of 145
**Rationale:** The three-tier hierarchical model (Core, Distribution, Access) is the foundational
enterprise campus design that provides modularity, scalability, and simplified troubleshooting.
The Core layer provides high-speed transport, the Distribution layer aggregates access switches
and enforces policies, and the Access layer provides user connectivity. This design facilitates
easier troubleshooting by isolating problems to specific layers. Spine-leaf is more suited for data
center environments, not traditional campus networks. A flat architecture lacks scalability and
creates large failure domains.
---
### Question 2
Which of the following is a primary function of the Distribution layer in the Cisco hierarchical
network model?
A. Providing high-speed data transport between remote sites
B. Aggregating access layer switches and implementing policy-based connectivity
C. Connecting end-user devices to the network
D. Providing redundant Layer 2 loops for high availability
**Correct Answer: B**
**Rationale:** The Distribution layer serves as the boundary between the Access and Core
layers, aggregating traffic from access switches and implementing policies such as routing,
filtering, and QoS. It provides policy-based connectivity and often serves as the routing
boundary between VLANs. Option A describes the Core layer, Option C describes the Access
layer, and Option D describes a function of Spanning Tree Protocol, not the Distribution layer.
---
### Question 3
,Page 3 of 145
An enterprise network is experiencing slow convergence during link failures. The network uses a
three-tier hierarchical design. Which protocol at the Distribution layer would BEST improve
convergence times?
A. Spanning Tree Protocol (STP)
B. Hot Standby Routing Protocol (HSRP)
C. Open Shortest Path First (OSPF) with fast convergence features
D. VLAN Trunking Protocol (VTP)
**Correct Answer: C**
**Rationale:** OSPF with fast convergence features (such as Bidirectional Forwarding
Detection - BFD, OSPF SPF tuning, and incremental SPF) provides rapid convergence during
link failures at the Distribution layer. STP is a Layer 2 protocol that actually slows convergence
(30-50 seconds default). HSRP provides gateway redundancy but doesn't improve routing
convergence. VTP is a VLAN management protocol, not a convergence solution.
---
### Question 4
What is the primary purpose of implementing a collapsed core architecture in a small-to-medium
enterprise network?
A. To eliminate the need for routing protocols
B. To combine the Core and Distribution layers into a single layer for cost savings
C. To create additional redundancy through multiple core switches
D. To separate user traffic from server traffic
**Correct Answer: B**
, Page 4 of 145
**Rationale:** A collapsed core architecture combines the Core and Distribution layers into a
single functional layer, typically used in smaller enterprise networks where the cost of a separate
core layer is not justified. This reduces hardware costs while still providing routing, policy
enforcement, and high-speed connectivity. It does not eliminate routing protocols (A), and
redundancy is still possible with multiple devices. Separating user and server traffic (D) is not
the primary purpose.
---
### Question 5
Which enterprise network design principle ensures that failure of a single device or link does not
cause a network outage?
A. Modularity
B. Scalability
C. Resiliency
D. Hierarchical structuring
**Correct Answer: C**
**Rationale:** Resiliency (also called redundancy) is the design principle that ensures network
availability continues despite failures through redundant devices, links, and paths. Modularity
allows for independent upgrades and troubleshooting. Scalability enables growth without
redesign. Hierarchical structuring organizes the network into layers. While all are important
design principles, resiliency directly addresses fault tolerance.
---
### Question 6
CCNP ENTERPRISE 350-401 ENCOR & 300-410
ENARSI 2026-2027 MEGA TEST BANK | 227
LATEST PRACTICE QUESTIONS WITH 100%
VERIFIED ANSWERS & DETAILED RATIONALES
| CISCO CERTIFIED NETWORK PROFESSIONAL
(CCNP) CERTIFICATION PREP | UPDATED FOR
V1.2 SYLLABUS | GRADED A+ SOLUTIONS
# SECTION 1.0: ARCHITECTURE (15%)
## 1.1 Enterprise Network Design & Hierarchical Models
### Question 1
A network architect is designing a new enterprise campus network that must support 5,000 users
across multiple buildings. The design requires high availability, modularity, and simplified
troubleshooting. Which hierarchical design model best meets these requirements?
A. Spine-Leaf architecture with equal-cost multipathing
B. Three-tier hierarchical model with Core, Distribution, and Access layers
C. Flat switched architecture with all devices in a single Layer 2 domain
D. Collapsed core model with Distribution and Core combined
**Correct Answer: B**
,Page 2 of 145
**Rationale:** The three-tier hierarchical model (Core, Distribution, Access) is the foundational
enterprise campus design that provides modularity, scalability, and simplified troubleshooting.
The Core layer provides high-speed transport, the Distribution layer aggregates access switches
and enforces policies, and the Access layer provides user connectivity. This design facilitates
easier troubleshooting by isolating problems to specific layers. Spine-leaf is more suited for data
center environments, not traditional campus networks. A flat architecture lacks scalability and
creates large failure domains.
---
### Question 2
Which of the following is a primary function of the Distribution layer in the Cisco hierarchical
network model?
A. Providing high-speed data transport between remote sites
B. Aggregating access layer switches and implementing policy-based connectivity
C. Connecting end-user devices to the network
D. Providing redundant Layer 2 loops for high availability
**Correct Answer: B**
**Rationale:** The Distribution layer serves as the boundary between the Access and Core
layers, aggregating traffic from access switches and implementing policies such as routing,
filtering, and QoS. It provides policy-based connectivity and often serves as the routing
boundary between VLANs. Option A describes the Core layer, Option C describes the Access
layer, and Option D describes a function of Spanning Tree Protocol, not the Distribution layer.
---
### Question 3
,Page 3 of 145
An enterprise network is experiencing slow convergence during link failures. The network uses a
three-tier hierarchical design. Which protocol at the Distribution layer would BEST improve
convergence times?
A. Spanning Tree Protocol (STP)
B. Hot Standby Routing Protocol (HSRP)
C. Open Shortest Path First (OSPF) with fast convergence features
D. VLAN Trunking Protocol (VTP)
**Correct Answer: C**
**Rationale:** OSPF with fast convergence features (such as Bidirectional Forwarding
Detection - BFD, OSPF SPF tuning, and incremental SPF) provides rapid convergence during
link failures at the Distribution layer. STP is a Layer 2 protocol that actually slows convergence
(30-50 seconds default). HSRP provides gateway redundancy but doesn't improve routing
convergence. VTP is a VLAN management protocol, not a convergence solution.
---
### Question 4
What is the primary purpose of implementing a collapsed core architecture in a small-to-medium
enterprise network?
A. To eliminate the need for routing protocols
B. To combine the Core and Distribution layers into a single layer for cost savings
C. To create additional redundancy through multiple core switches
D. To separate user traffic from server traffic
**Correct Answer: B**
, Page 4 of 145
**Rationale:** A collapsed core architecture combines the Core and Distribution layers into a
single functional layer, typically used in smaller enterprise networks where the cost of a separate
core layer is not justified. This reduces hardware costs while still providing routing, policy
enforcement, and high-speed connectivity. It does not eliminate routing protocols (A), and
redundancy is still possible with multiple devices. Separating user and server traffic (D) is not
the primary purpose.
---
### Question 5
Which enterprise network design principle ensures that failure of a single device or link does not
cause a network outage?
A. Modularity
B. Scalability
C. Resiliency
D. Hierarchical structuring
**Correct Answer: C**
**Rationale:** Resiliency (also called redundancy) is the design principle that ensures network
availability continues despite failures through redundant devices, links, and paths. Modularity
allows for independent upgrades and troubleshooting. Scalability enables growth without
redesign. Hierarchical structuring organizes the network into layers. While all are important
design principles, resiliency directly addresses fault tolerance.
---
### Question 6
