350-601 DCCOR Implementing and Operating Cisco Data Center Core
Technologies (DCCOR) Practice Exam
Q1: Which Cisco Data Center Architecture model is best known for its emphasis on modular design?
A. Traditional Data Center Architecture
B. Cisco Unified Fabric Architecture
C. End-to-End Modular Design
D. Cisco Data Center Unified Access
Answer: C
Explanation: End-to-End Modular Design focuses on using predesigned, scalable modules to build out
data centers quickly and efficiently.
Q2: In a traditional data center architecture, which element is most critical for scalability?
A. Fixed rack configurations
B. Modular cabling systems
C. Over-provisioned hardware
D. Centralized management tools
Answer: B
Explanation: Modular cabling systems in traditional architectures enable scalability as new modules can
be added without reconfiguring the entire setup.
Q3: Which architecture model is designed to integrate both compute and network fabric into one
unified solution?
A. Cisco Unified Fabric Architecture
B. Traditional Data Center Architecture
C. End-to-End Modular Design
D. Cisco Data Center Unified Access
Answer: A
Explanation: Cisco Unified Fabric Architecture integrates compute and networking, reducing complexity
and improving efficiency.
Q4: What is the primary focus of the Cisco Data Center Unified Access model?
A. Simplifying server virtualization
B. Unifying LAN and data center fabrics
C. Enhancing modular design principles
D. Providing isolated network segments
Answer: B
Explanation: Cisco Data Center Unified Access is aimed at merging campus LAN and data center
networks to provide consistent policy and management.
,Q5: Which design approach emphasizes the use of standardized modules for easier expansion?
A. End-to-End Design
B. Modular Data Center Design
C. Traditional Design
D. Unified Access Design
Answer: B
Explanation: Modular Data Center Design uses standardized, repeatable units that allow for
straightforward expansion and maintenance.
Q6: Which topology is characterized by two layers where one set of switches (spines) interconnects a
second set (leaves) without interleaf links?
A. Routed Access Layer
B. Layer 2 Topology
C. Spine-Leaf Architecture
D. Traditional Three-Tier
Answer: C
Explanation: The spine-leaf architecture uses a two-tier design where leaf switches connect to spine
switches, ensuring predictable latency and high bandwidth.
Q7: When comparing Layer 2 and Layer 3 topologies in data centers, which is more scalable for large
deployments?
A. Layer 2
B. Layer 3
C. Both are equally scalable
D. Neither is scalable
Answer: B
Explanation: Layer 3 topologies allow for better scalability due to routing, which reduces broadcast
domains and limits unnecessary traffic.
Q8: What is the main benefit of implementing a routed access layer in a data center network?
A. Simplified cable management
B. Reduced broadcast traffic
C. Enhanced aesthetics of the design
D. Increased reliance on spanning tree
Answer: B
Explanation: A routed access layer reduces broadcast traffic by routing packets instead of relying on
broadcast domains, improving performance.
Q9: Which component is not a fabric element in Cisco ACI?
A. APIC (Application Policy Infrastructure Controller)
,B. Spine switches
C. Fabric Interconnects
D. Leaf switches
Answer: C
Explanation: In Cisco ACI, fabric interconnects are typically part of UCS and not a direct fabric element;
the fabric consists of APIC, spine, and leaf switches.
Q10: Which plane in the Cisco ACI architecture is responsible for policy enforcement?
A. Management Plane
B. Data Plane
C. Control Plane
D. Application Plane
Answer: B
Explanation: The Data Plane in Cisco ACI enforces the policies set by the APIC and applies them directly
to the data traffic.
Q11: In Cisco ACI, what is the primary role of the APIC?
A. Forwarding data packets
B. Physical cabling management
C. Centralized policy management
D. Providing power to switches
Answer: C
Explanation: The APIC (Application Policy Infrastructure Controller) centrally manages the policies and
configuration for the entire ACI fabric.
Q12: Which element defines the communication rules and behaviors in the Cisco ACI policy model?
A. Service Profiles
B. Endpoint Groups (EPGs)
C. Virtual Routing and Forwarding (VRF)
D. Fabric Extenders
Answer: B
Explanation: Endpoint Groups (EPGs) in Cisco ACI define the communication policies between different
sets of endpoints within the fabric.
Q13: What does high availability in data centers primarily aim to ensure?
A. Maximum throughput
B. Continuous operations
C. Minimal cabling
D. Increased energy consumption
Answer: B
, Explanation: High availability is designed to keep data center operations running continuously, even in
the event of component failures.
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Q14: Which redundant system in a data center ensures continued operation during power outages?
A. Redundant cooling systems
B. Backup generators only
C. Redundant power supply systems
D. Modular switches
Answer: C
Explanation: Redundant power supply systems provide alternative power sources, ensuring continuous
operation during outages.
Q15: What is the purpose of redundant cooling systems in a data center?
A. To speed up server processing
B. To maintain optimal operating temperatures
C. To increase network throughput
D. To provide backup power
Answer: B
Explanation: Redundant cooling systems are critical for keeping servers at optimal temperatures and
preventing overheating.
Q16: How does virtualization contribute to high availability in data centers?
A. By eliminating physical servers
B. Through dynamic resource allocation and rapid recovery
C. By reducing network traffic
D. By enhancing power supply redundancy
Answer: B
Explanation: Virtualization allows resources to be reallocated quickly, and virtual machines can be
restarted or moved to other hosts in case of failure, thus increasing availability.
Q17: Which design principle is most critical for ensuring data center scalability?
A. High redundancy
B. Traffic flow optimization
C. Modular design
D. Low latency
Answer: C
Explanation: Modular design enables incremental expansion and scalability, accommodating growth
without major redesigns.
Technologies (DCCOR) Practice Exam
Q1: Which Cisco Data Center Architecture model is best known for its emphasis on modular design?
A. Traditional Data Center Architecture
B. Cisco Unified Fabric Architecture
C. End-to-End Modular Design
D. Cisco Data Center Unified Access
Answer: C
Explanation: End-to-End Modular Design focuses on using predesigned, scalable modules to build out
data centers quickly and efficiently.
Q2: In a traditional data center architecture, which element is most critical for scalability?
A. Fixed rack configurations
B. Modular cabling systems
C. Over-provisioned hardware
D. Centralized management tools
Answer: B
Explanation: Modular cabling systems in traditional architectures enable scalability as new modules can
be added without reconfiguring the entire setup.
Q3: Which architecture model is designed to integrate both compute and network fabric into one
unified solution?
A. Cisco Unified Fabric Architecture
B. Traditional Data Center Architecture
C. End-to-End Modular Design
D. Cisco Data Center Unified Access
Answer: A
Explanation: Cisco Unified Fabric Architecture integrates compute and networking, reducing complexity
and improving efficiency.
Q4: What is the primary focus of the Cisco Data Center Unified Access model?
A. Simplifying server virtualization
B. Unifying LAN and data center fabrics
C. Enhancing modular design principles
D. Providing isolated network segments
Answer: B
Explanation: Cisco Data Center Unified Access is aimed at merging campus LAN and data center
networks to provide consistent policy and management.
,Q5: Which design approach emphasizes the use of standardized modules for easier expansion?
A. End-to-End Design
B. Modular Data Center Design
C. Traditional Design
D. Unified Access Design
Answer: B
Explanation: Modular Data Center Design uses standardized, repeatable units that allow for
straightforward expansion and maintenance.
Q6: Which topology is characterized by two layers where one set of switches (spines) interconnects a
second set (leaves) without interleaf links?
A. Routed Access Layer
B. Layer 2 Topology
C. Spine-Leaf Architecture
D. Traditional Three-Tier
Answer: C
Explanation: The spine-leaf architecture uses a two-tier design where leaf switches connect to spine
switches, ensuring predictable latency and high bandwidth.
Q7: When comparing Layer 2 and Layer 3 topologies in data centers, which is more scalable for large
deployments?
A. Layer 2
B. Layer 3
C. Both are equally scalable
D. Neither is scalable
Answer: B
Explanation: Layer 3 topologies allow for better scalability due to routing, which reduces broadcast
domains and limits unnecessary traffic.
Q8: What is the main benefit of implementing a routed access layer in a data center network?
A. Simplified cable management
B. Reduced broadcast traffic
C. Enhanced aesthetics of the design
D. Increased reliance on spanning tree
Answer: B
Explanation: A routed access layer reduces broadcast traffic by routing packets instead of relying on
broadcast domains, improving performance.
Q9: Which component is not a fabric element in Cisco ACI?
A. APIC (Application Policy Infrastructure Controller)
,B. Spine switches
C. Fabric Interconnects
D. Leaf switches
Answer: C
Explanation: In Cisco ACI, fabric interconnects are typically part of UCS and not a direct fabric element;
the fabric consists of APIC, spine, and leaf switches.
Q10: Which plane in the Cisco ACI architecture is responsible for policy enforcement?
A. Management Plane
B. Data Plane
C. Control Plane
D. Application Plane
Answer: B
Explanation: The Data Plane in Cisco ACI enforces the policies set by the APIC and applies them directly
to the data traffic.
Q11: In Cisco ACI, what is the primary role of the APIC?
A. Forwarding data packets
B. Physical cabling management
C. Centralized policy management
D. Providing power to switches
Answer: C
Explanation: The APIC (Application Policy Infrastructure Controller) centrally manages the policies and
configuration for the entire ACI fabric.
Q12: Which element defines the communication rules and behaviors in the Cisco ACI policy model?
A. Service Profiles
B. Endpoint Groups (EPGs)
C. Virtual Routing and Forwarding (VRF)
D. Fabric Extenders
Answer: B
Explanation: Endpoint Groups (EPGs) in Cisco ACI define the communication policies between different
sets of endpoints within the fabric.
Q13: What does high availability in data centers primarily aim to ensure?
A. Maximum throughput
B. Continuous operations
C. Minimal cabling
D. Increased energy consumption
Answer: B
, Explanation: High availability is designed to keep data center operations running continuously, even in
the event of component failures.
────────────────────────------------
Q14: Which redundant system in a data center ensures continued operation during power outages?
A. Redundant cooling systems
B. Backup generators only
C. Redundant power supply systems
D. Modular switches
Answer: C
Explanation: Redundant power supply systems provide alternative power sources, ensuring continuous
operation during outages.
Q15: What is the purpose of redundant cooling systems in a data center?
A. To speed up server processing
B. To maintain optimal operating temperatures
C. To increase network throughput
D. To provide backup power
Answer: B
Explanation: Redundant cooling systems are critical for keeping servers at optimal temperatures and
preventing overheating.
Q16: How does virtualization contribute to high availability in data centers?
A. By eliminating physical servers
B. Through dynamic resource allocation and rapid recovery
C. By reducing network traffic
D. By enhancing power supply redundancy
Answer: B
Explanation: Virtualization allows resources to be reallocated quickly, and virtual machines can be
restarted or moved to other hosts in case of failure, thus increasing availability.
Q17: Which design principle is most critical for ensuring data center scalability?
A. High redundancy
B. Traffic flow optimization
C. Modular design
D. Low latency
Answer: C
Explanation: Modular design enables incremental expansion and scalability, accommodating growth
without major redesigns.
