JNCIE Enterprise Routing Infrastructure Deployment

1. In Juniper OSPF, what is a Type 1 LSA?

Router LSA

Network LSA

Summary LSA

External LSA

2. In enterprise deployments, what is the advantage of using IBGP with route reflectors?

Eliminates all routing loops

Reduces full-mesh peering requirements

Increases BGP convergence speed

Removes the need for OSPF

3. What does RIB-OUT represent in Juniper routing architecture?

Routes received from neighbors

Routes being advertised to neighbors

Routes installed in the forwarding table

Routes rejected by policy

4. Which Juniper routing table stores MPLS label information?

Inet.0

Inet.1

Mpls.0

Inet.3

5. In Juniper IS-IS, what is a Level 2 router?

An area border router

A backbone router connecting areas

A leaf router in the network

A router with reduced capacity

6. What is the purpose of a route filter in Juniper policy configuration?

Increase routing convergence

Match routes based on prefix and length

Reduce BGP updates

Prevent packet loss

7. Which BGP path attribute has the highest priority in Juniper route selection?

AS Path Length

Local Preference

Multi-Exit Discriminator

Origin Code

8. In a Juniper router, what does the Packet Forwarding Engine do?

Runs OSPF and BGP processes

Forwards packets at hardware line rate

Manages system memory

Handles SSH connections

9. What is the primary role of an LDP in MPLS networks?

Assigns labels to IP prefixes

Forwards labeled packets

Manages traffic engineering

Handles QoS policies

10. Which command verifies BGP peering status on Juniper routers?

Show bgp summary

Show route protocol bgp

Display bgp neighbors

List bgp sessions

11. What is the primary advantage of using MPLS in enterprise networks?

Reduces CPU usage on routers

Enables traffic engineering and QoS guarantees

Eliminates the need for BGP

Increases routing table size

12. What is the purpose of route redistribution in enterprise networks?

Duplicate routes for redundancy

Connect different routing protocols or areas

Reduce BGP convergence time

Eliminate routing loops

13. Which Juniper routing table is used for multicast forwarding?

Inet.0

Inet.1

Inet.2

Inet.3

14. In Juniper routing, what does graceful restart enable?

Faster packet forwarding

Minimal packet loss during routing process restarts

Automatic failover to backup routers

Increased BGP neighbor stability

15. What is the default BGP hold timer value in Juniper devices?

30 seconds

60 seconds

90 seconds

180 seconds

16. Which routing protocol is most suitable for internal BGP peering within an AS?

OSPF or IS-IS

RIP v2

EIGRP only

Static routing

17. In MPLS, what is an LSP?

Label Switched Path

Link State Protocol

Load Sharing Protocol

Layer 3 Service Packet

18. What does IBGP stand for in Juniper routing contexts?

Interior Border Gateway Protocol

Internal Border Gateway Protocol

Integrated BGP

Internet BGP

19. Which BGP attribute is used to prevent routing loops in AS paths?