1. Which protocol is used for dynamic routing in enterprise networks with Juniper devices?
OSPF
HTTP
FTP
SNMP
✅ Correct Answer: OSPF
2. What is the purpose of Virtual Chassis technology in Juniper enterprise networking?
To aggregate multiple switches into a single logical device
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To aggregate multiple switches into a single logical device
3. Which Juniper feature is used to simplify network management in enterprise environments?
Junos Space
BGP
MPLS
OSPF
✅ Correct Answer: Junos Space
4. What is the primary function of EX Series switches in enterprise networks?
To provide high-performance switching
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To provide high-performance switching
5. Which protocol is used for redundancy in enterprise networks?
VRRP
BGP
MPLS
OSPF
✅ Correct Answer: VRRP
6. What is the purpose of Junos OS in Juniper enterprise devices?
To provide a robust and scalable operating system
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To provide a robust and scalable operating system
7. Which Juniper feature is used to optimize traffic flow in enterprise networks?
QoS
BGP
MPLS
OSPF
✅ Correct Answer: QoS
8. What is the role of a Layer 3 switch in enterprise networks?
To route traffic between VLANs
To provide basic switching
To enhance wireless coverage
To act as a firewall
✅ Correct Answer: To route traffic between VLANs
9. Which Juniper feature is used to simplify network automation in enterprise environments?
Junos Automation
BGP
MPLS
OSPF
✅ Correct Answer: Junos Automation
10. What is the purpose of a trunk port in enterprise networks?
To carry traffic for multiple VLANs
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To carry traffic for multiple VLANs
11. Which Juniper feature is used to monitor network performance in enterprise environments?
Junos Telemetry
BGP
MPLS
OSPF
✅ Correct Answer: Junos Telemetry
12. What is the role of a core switch in enterprise networks?
To provide high-speed connectivity between network segments
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To provide high-speed connectivity between network segments
13. Which Juniper feature is used to secure enterprise networks?
SRX Series devices
BGP
MPLS
OSPF
✅ Correct Answer: SRX Series devices
14. What is the purpose of a distribution switch in enterprise networks?
To aggregate traffic from access switches
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To aggregate traffic from access switches
15. Which Juniper feature is used to simplify VLAN management in enterprise networks?
VLAN tagging
BGP
MPLS
OSPF
✅ Correct Answer: VLAN tagging
16. What is the role of an access switch in enterprise networks?
To connect end devices to the network
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To connect end devices to the network
17. Which Juniper feature is used to provide redundancy in enterprise networks?
RSTP
BGP
MPLS
OSPF
✅ Correct Answer: RSTP
18. What is the purpose of a default gateway in enterprise networks?
To route traffic to external networks
To encrypt network traffic
To optimize Wi-Fi connectivity
To configure NAT rules
✅ Correct Answer: To route traffic to external networks
19. Which Juniper feature is used to simplify network troubleshooting in enterprise environments?
Junos CLI
BGP
MPLS
OSPF
✅ Correct Answer: Junos CLI
20. What is the role of a firewall in enterprise networks?
To protect against unauthorized access
To optimize routing protocols
To manage VLAN configurations
To enhance wireless connectivity
✅ Correct Answer: To protect against unauthorized access
21. Which Juniper feature is used to provide redundancy for EX Series switches?
Virtual Chassis
BGP
MPLS
OSPF
✅ Correct Answer: Virtual Chassis
22. What is the purpose of RSTP in enterprise networks?
To prevent switching loops
To optimize routing
To configure VLANs
To enhance wireless
✅ Correct Answer: To prevent switching loops
23. Which Juniper feature is used to aggregate multiple physical links?
LACP
BGP
MPLS
OSPF
✅ Correct Answer: LACP
24. What is the primary function of a Layer 3 switch?
Inter-VLAN routing
Packet filtering
Wireless access
VPN termination
✅ Correct Answer: Inter-VLAN routing
25. Which Juniper feature is used to prioritize voice traffic?
QoS
BGP
MPLS
OSPF
✅ Correct Answer: QoS
26. What is the purpose of VRRP in enterprise networks?
Gateway redundancy
Loop prevention
VLAN tagging
Wireless roaming
✅ Correct Answer: Gateway redundancy
27. Which Juniper feature is used to isolate broadcast domains?
VLANs
BGP
MPLS
OSPF
✅ Correct Answer: VLANs
28. What is the primary function of an access switch?
End device connectivity
Core routing
Firewall services
WAN optimization
✅ Correct Answer: End device connectivity
29. Which Juniper feature is used to simplify switch stacking?
Virtual Chassis
BGP
MPLS
OSPF
✅ Correct Answer: Virtual Chassis
30. What is the purpose of a trunk port?
Carry multiple VLANs
Connect end devices
Provide wireless access
Terminate VPNs
✅ Correct Answer: Carry multiple VLANs
31. Which Juniper feature is used to monitor switch performance?
Junos Telemetry
BGP
MPLS
OSPF
✅ Correct Answer: Junos Telemetry
32. What is the primary function of a core switch?
High-speed backbone
End device connectivity
Firewall services
WAN optimization
✅ Correct Answer: High-speed backbone
33. Which Juniper feature is used to secure switch access?
Port security
BGP
MPLS
OSPF
✅ Correct Answer: Port security
34. What is the purpose of MSTP in enterprise networks?
Multiple spanning trees
Gateway redundancy
VLAN tagging
Wireless roaming
✅ Correct Answer: Multiple spanning trees
35. Which Juniper feature is used to automate switch configuration?
Junos Automation
BGP
MPLS
OSPF
✅ Correct Answer: Junos Automation
36. What is the primary function of a distribution switch?
Aggregate access switches
Core routing
Firewall services
WAN optimization
✅ Correct Answer: Aggregate access switches
37. Which Juniper feature is used to prioritize network traffic?
QoS
BGP
MPLS
OSPF
✅ Correct Answer: QoS
38. What is the purpose of 802.1Q tagging?
VLAN identification
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: VLAN identification
39. Which Juniper feature is used to troubleshoot switch issues?
Junos CLI
BGP
MPLS
OSPF
✅ Correct Answer: Junos CLI
40. What is the primary function of STP?
Loop prevention
Gateway redundancy
VLAN tagging
Wireless roaming
✅ Correct Answer: Loop prevention
41. Which Juniper feature is used to manage multiple switches?
Junos Space
BGP
MPLS
OSPF
✅ Correct Answer: Junos Space
42. What is the purpose of a default route?
Internet gateway
Loop prevention
VLAN tagging
Wireless roaming
✅ Correct Answer: Internet gateway
43. Which Juniper feature is used to secure management access?
SSH
BGP
MPLS
OSPF
✅ Correct Answer: SSH
44. What is the primary function of a routed VLAN interface?
Inter-VLAN routing
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Inter-VLAN routing
45. Which Juniper feature is used to monitor network traffic?
sFlow
BGP
MPLS
OSPF
✅ Correct Answer: sFlow
46. What is the purpose of port mirroring?
Traffic analysis
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Traffic analysis
47. Which Juniper feature is used to authenticate switch access?
RADIUS
BGP
MPLS
OSPF
✅ Correct Answer: RADIUS
48. What is the primary function of a management VLAN?
Secure management traffic
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Secure management traffic
49. Which Juniper feature is used to configure switch ports?
Interface configuration
BGP
MPLS
OSPF
✅ Correct Answer: Interface configuration
50. What is the purpose of LLDP?
Neighbor discovery
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Neighbor discovery
51. Which Juniper feature is used to filter switch traffic?
Firewall filters
BGP
MPLS
OSPF
✅ Correct Answer: Firewall filters
52. What is the primary function of a loopback interface?
Management stability
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Management stability
53. Which Juniper feature is used to optimize switch performance?
QoS
BGP
MPLS
OSPF
✅ Correct Answer: QoS
54. What is the purpose of BPDU Guard?
STP protection
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: STP protection
55. Which Juniper feature is used to secure switch ports?
Port security
BGP
MPLS
OSPF
✅ Correct Answer: Port security
56. What is the primary function of a default VLAN?
Native VLAN
Management VLAN
Voice VLAN
Guest VLAN
✅ Correct Answer: Native VLAN
57. Which Juniper feature is used to troubleshoot VLAN issues?
show vlans
BGP
MPLS
OSPF
✅ Correct Answer: show vlans
58. What is the purpose of storm control?
Limit broadcast traffic
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Limit broadcast traffic
59. Which Juniper feature is used to configure switch redundancy?
Virtual Chassis
BGP
MPLS
OSPF
✅ Correct Answer: Virtual Chassis
60. What is the primary function of a voice VLAN?
Prioritize VoIP traffic
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Prioritize VoIP traffic
61. Which Juniper feature is used to monitor switch CPU usage?
show system processes
BGP
MPLS
OSPF
✅ Correct Answer: show system processes
62. What is the purpose of root guard?
STP stability
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: STP stability
63. Which Juniper feature is used to configure switch stacking?
Virtual Chassis
BGP
MPLS
OSPF
✅ Correct Answer: Virtual Chassis
64. What is the primary function of a guest VLAN?
Isolate untrusted devices
Loop prevention
Gateway redundancy
Wireless roaming
✅ Correct Answer: Isolate untrusted devices
65. Which Juniper feature is used to troubleshoot switch interfaces?
show interfaces
BGP
MPLS
OSPF
✅ Correct Answer: show interfaces
The Juniper Jn0 349 Jncis Ent certification is a globally recognized credential for IT professionals.
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