1. Which network design principle focuses on ensuring that a network can grow to accommodate future needs?
Scalability
Latency
Encryption
Redundancy
✅ Correct Answer: Scalability
2. What is the purpose of a Layer 3 switch in a network design?
To provide basic switching
To route traffic between VLANs
To enhance wireless coverage
To act as a firewall
✅ Correct Answer: To route traffic between VLANs
3. Which of the following is a key consideration in network design?
Redundancy
Single point of failure
Limited scalability
Manual configuration
✅ Correct Answer: Redundancy
4. What is the primary goal of network segmentation?
Improving security and performance
Increasing latency
Reducing scalability
Adding complexity
✅ Correct Answer: Improving security and performance
5. Which of the following is a benefit of using VLANs in network design?
Improved network segmentation
Increased latency
Reduced scalability
Added complexity
✅ Correct Answer: Improved network segmentation
6. What is the role of a firewall in network design?
To protect against unauthorized access
To route traffic between VLANs
To provide wireless coverage
To increase latency
✅ Correct Answer: To protect against unauthorized access
7. Which of the following is a key component of a scalable network design?
Modular architecture
Static configurations
Limited redundancy
Manual troubleshooting
✅ Correct Answer: Modular architecture
8. What is the purpose of a network diagram in network design?
To visualize the network layout
To increase latency
To reduce scalability
To add complexity
✅ Correct Answer: To visualize the network layout
9. Which of the following is a key consideration for network performance?
Latency
Manual configuration
Limited scalability
Single point of failure
✅ Correct Answer: Latency
10. What is the role of QoS in network design?
To prioritize network traffic
To increase latency
To reduce scalability
To add complexity
✅ Correct Answer: To prioritize network traffic
11. Which of the following is a benefit of using redundancy in network design?
Improved fault tolerance
Increased latency
Reduced scalability
Added complexity
✅ Correct Answer: Improved fault tolerance
12. What is the purpose of a network baseline in network design?
To measure network performance
To increase latency
To reduce scalability
To add complexity
✅ Correct Answer: To measure network performance
13. Which of the following is a key consideration for network security?
Encryption
Increased latency
Reduced scalability
Manual configuration
✅ Correct Answer: Encryption
14. What is the role of a router in network design?
To connect different networks
To provide basic switching
To enhance wireless coverage
To act as a firewall
✅ Correct Answer: To connect different networks
15. Which of the following is a benefit of using a hierarchical network design?
Improved scalability
Increased latency
Reduced redundancy
Added complexity
✅ Correct Answer: Improved scalability
16. What is the purpose of a network audit in network design?
To identify potential issues
To increase latency
To reduce scalability
To add complexity
✅ Correct Answer: To identify potential issues
17. Which of the following is a key consideration for network scalability?
Modular design
Static configurations
Limited redundancy
Manual troubleshooting
✅ Correct Answer: Modular design
18. What is the role of a switch in network design?
To connect devices within a network
To route traffic between networks
To provide wireless coverage
To act as a firewall
✅ Correct Answer: To connect devices within a network
19. Which of the following is a benefit of using a star topology in network design?
Ease of troubleshooting
Increased latency
Reduced scalability
Added complexity
✅ Correct Answer: Ease of troubleshooting
20. What is the purpose of a network protocol in network design?
To define communication rules
To increase latency
To reduce scalability
To add complexity
✅ Correct Answer: To define communication rules
21. Which network design principle focuses on minimizing single points of failure?
Redundancy
Latency
Encryption
Scalability
✅ Correct Answer: Redundancy
22. What is the purpose of a core layer in a three-tier network design?
High-speed backbone
User access
Security enforcement
Application hosting
✅ Correct Answer: High-speed backbone
23. Which network design approach uses virtualization to abstract physical resources?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
24. What is the primary benefit of using spine-leaf architecture in data centers?
Non-blocking fabric
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Non-blocking fabric
25. Which network design consideration helps prevent broadcast storms?
VLAN segmentation
Single large subnet
Flat network
Shared media
✅ Correct Answer: VLAN segmentation
26. What is the purpose of a DMZ in network security design?
Isolate public services
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Isolate public services
27. Which network design principle focuses on ease of management?
Modularity
Complexity
Fragmentation
Obfuscation
✅ Correct Answer: Modularity
28. What is the primary benefit of using MPLS in WAN design?
Traffic engineering
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Traffic engineering
29. Which network design approach uses underlay and overlay networks?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
30. What is the purpose of QoS in network design?
Prioritize critical traffic
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Prioritize critical traffic
31. Which network design principle focuses on future growth?
Scalability
Latency
Encryption
Redundancy
✅ Correct Answer: Scalability
32. What is the purpose of a distribution layer in a three-tier network design?
Aggregate access layers
User access
Security enforcement
Application hosting
✅ Correct Answer: Aggregate access layers
33. Which network design approach uses centralized control plane?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
34. What is the primary benefit of using VXLAN in data center design?
Layer 2 extension
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Layer 2 extension
35. Which network design consideration helps prevent unauthorized access?
Access control lists
Single large subnet
Flat network
Shared media
✅ Correct Answer: Access control lists
36. What is the purpose of a firewall in network security design?
Control traffic flow
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Control traffic flow
37. Which network design principle focuses on component isolation?
Modularity
Complexity
Fragmentation
Obfuscation
✅ Correct Answer: Modularity
38. What is the primary benefit of using EVPN in data center design?
Layer 2/Layer 3 integration
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Layer 2/Layer 3 integration
39. Which network design approach uses programmable interfaces?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
40. What is the purpose of traffic shaping in network design?
Control bandwidth usage
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Control bandwidth usage
41. Which network design principle focuses on performance optimization?
Efficiency
Latency
Encryption
Redundancy
✅ Correct Answer: Efficiency
42. What is the purpose of an access layer in a three-tier network design?
User connectivity
High-speed backbone
Security enforcement
Application hosting
✅ Correct Answer: User connectivity
43. Which network design approach uses open protocols?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
44. What is the primary benefit of using segment routing in WAN design?
Simplified traffic engineering
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Simplified traffic engineering
45. Which network design consideration helps prevent congestion?
QoS policies
Single large subnet
Flat network
Shared media
✅ Correct Answer: QoS policies
46. What is the purpose of IDS/IPS in network security design?
Threat detection/prevention
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Threat detection/prevention
47. Which network design principle focuses on fault isolation?
Modularity
Complexity
Fragmentation
Obfuscation
✅ Correct Answer: Modularity
48. What is the primary benefit of using LACP in network design?
Link redundancy
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Link redundancy
49. Which network design approach uses API-driven automation?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
50. What is the purpose of BFD in network design?
Fast failure detection
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Fast failure detection
51. Which network design principle focuses on security implementation?
Defense in depth
Latency
Encryption
Redundancy
✅ Correct Answer: Defense in depth
52. What is the purpose of a collapsed core in network design?
Combine core/distribution
User access
Security enforcement
Application hosting
✅ Correct Answer: Combine core/distribution
53. Which network design approach uses overlay tunneling?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
54. What is the primary benefit of using ECMP in network design?
Load balancing
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Load balancing
55. Which network design consideration helps prevent routing loops?
Spanning Tree Protocol
Single large subnet
Flat network
Shared media
✅ Correct Answer: Spanning Tree Protocol
56. What is the purpose of NAC in network security design?
Device authentication
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Device authentication
57. Which network design principle focuses on standardized components?
Consistency
Complexity
Fragmentation
Obfuscation
✅ Correct Answer: Consistency
58. What is the primary benefit of using VRRP in network design?
Gateway redundancy
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Gateway redundancy
59. Which network design approach uses centralized policy management?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
60. What is the purpose of PIM in network design?
Multicast routing
Increase latency
Reduce scalability
Add complexity
✅ Correct Answer: Multicast routing
61. Which network design principle focuses on minimizing downtime?
High availability
Latency
Encryption
Redundancy
✅ Correct Answer: High availability
62. What is the purpose of a ToR switch in data center design?
Server connectivity
WAN connectivity
Security enforcement
Application hosting
✅ Correct Answer: Server connectivity
63. Which network design approach uses control/data plane separation?
SDN
MPLS
OSPF
BGP
✅ Correct Answer: SDN
64. What is the primary benefit of using OSPF in network design?
Fast convergence
Reduced security
Increased latency
Limited scalability
✅ Correct Answer: Fast convergence
65. Which network design consideration helps prevent unauthorized changes?
Configuration management
Single large subnet
Flat network
Shared media
✅ Correct Answer: Configuration management
The Juniper Jn0 1101 Jncda certification is a globally recognized credential for IT professionals.
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