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Juniper JN0-352 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: BGP | 15-20% | - Neighbor relationships and session establishment - Route advertisement, attributes and path selection - Routing policies, filtering and common troubleshooting |
| Topic 2: High Availability and Resiliency | 5-10% | - Network resiliency design and troubleshooting - Graceful restart and non-stop routing - Redundancy protocols and failover mechanisms |
| Topic 3: Protocol Independent Routing | 10-15% | - Routing tables, static routes and route preference - Routing instances and route selection criteria - Basic routing policy and filter operation |
| Topic 4: Tunnels and Overlays | 5-10% | - Overlay network design and connectivity - GRE, IP-IP and dynamic tunnel configuration - Tunnel types, encapsulation and operation |
| Topic 5: IP Multicast | 5-10% | - IGMP operation and configuration - Multicast routing monitoring and troubleshooting - PIM Dense Mode, Sparse Mode and RP mechanisms |
| Topic 6: Layer 2 Switching and VLANs | 15-20% | - Spanning Tree Protocol (STP, RSTP, MSTP) operation and configuration - VLAN concepts, configuration, trunking and tagging - Link Aggregation Groups (LAG) and Virtual Chassis |
| Topic 7: OSPF | 15-20% | - Configuration, verification and troubleshooting - Route summarization and redistribution - Neighbor formation, area design and LSA types |
| Topic 8: Layer 2 Security | 10-15% | - Port security, MAC limiting and storm control - Layer 2 firewall filters and security features - DHCP snooping, Dynamic ARP Inspection and IP Source Guard |
| Topic 9: IS-IS | 10-15% | - Scalable enterprise deployment and troubleshooting - Adjacency establishment, levels and metrics - Configuration and route exchange |
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
1. In a LAN segment, which tie-breaker would spanning tree consider if equal-cost paths exist between two or more switches to the root bridge?
A) port priority
B) port ID
C) bridge ID
D) interface number
2. Refer to Exhibit:
You have applied a firewall filter as an ingress filter on the ge-0/0/0 interface of your Juniper Networks EX Series Switch as shown in the exhibit. An external host sends an ICMP ping packet to the router.
Which statement is correct about how this packet is processed?
A) The icmp-counter is incremented and the packet is accepted.
B) The icmp-counter and tcp-counter are both incremented and the packet is accepted.
C) The icmp-counter is incremented and the packet is dropped.
D) The icmp-counter and blocked-counter are both incremented and the packet is dropped.
3. You want to verify prefix information being sent from 10.36.1.4.
Which two statements are correct about the output shown in the exhibit? (Choose two.)
A) The routes displayed have traversed one or more autonomous systems.
B) The output shows routes that are active and rejected by an import policy.
C) The routes displayed are being learned from an I BGP peer.
D) The output shows routes that were received prior to the application of any BGP import policies.
4. Your company has a branch location that uses a Juniper Networks EX Series Switch. You are asked to troubleshoot a spanning-tree issue that keeps reoccurring within the branch environment. After investigation, you discover that end-devices running a virtualization application are generating BPDUs, which are disrupting the spanning-tree topology and causing periodic outages. Which solution will prevent this problem from reoccurring?
A) Configure root protection on all access interfaces.
B) Disable RSTP on all access interfaces.
C) Configure BPDU protection on all edge interfaces.
D) Increase the max-age timer on all EX Series Switches.
5. Which statement describes the additional overhead added when a packet is encapsulated in a GRE tunnel?
A) GRE adds 20 bytes of overhead to each packet.
B) GRE adds 12 bytes of overhead to each packet.
C) GRE adds 24 bytes of overhead to each packet.
D) GRE adds 32 bytes of overhead to each packet.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: A,D | Question # 4 Answer: C | Question # 5 Answer: C |



