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Juniper JN0-352 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Layer 2 Security | - Port security (MAC limiting, DHCP snooping, DAI, IP source guard) - BPDU, loop and root protection - Layer 2 firewall filters - MACsec and storm control |
| Topic 2: Spanning Tree | - Convergence and reconvergence - Bridge Protocol Data Units (BPDUs) - STP and RSTP concepts, roles and states |
| Topic 3: Protocol-Independent Routing | - Static, aggregate, generated routes - Load balancing and filter-based forwarding - Martian addresses and RIB groups |
| Topic 4: Layer 2 Switching and VLANs | - Frame processing - Ports and VLAN tagging - Inter-VLAN routing - Bridging components - Native VLANs and voice VLANs |
| Topic 5: Tunnels | - IP tunneling concepts - GRE and IP-IP configuration and troubleshooting |
| Topic 6: OSPF | - Areas and LSA types - Link-state database and packet types - Router ID, adjacencies and neighbors |
| Topic 7: High Availability | - Virtual chassis and graceful restart - VRRP, NSR, NSB and BFD - Link Aggregation Groups and RTG |
| Topic 8: IS-IS | - Adjacencies and troubleshooting - Levels, areas and metrics - Link-state database and PDUs |
| Topic 9: BGP | - BGP basic operations and message types - Attributes and path selection - EBGP and IBGP peer interactions |
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
1. In addition to the MAC addresses, what information is stored in the bridging table? (Choose two.)
A) preamble of Ethernet packet
B) interface details
C) MAC learned time
D) ether type details
2. You enable persistent MAC learning on your Juniper switch. In this scenario, which statement is correct?
A) You can only enable persistent MAC learning on an interface in access mode.
B) You can only enable persistent MAC learning on an interface on which 802.1x authentication is configured.
C) You can enable persistent MAC learning on an interface that is part of a redundant trunk group.
D) You can enable persistent MAC learning on an interface where MAC learning is disabled.
3. A switch uses the factory-default storm control configuration. A sudden unknown-unicast burst causes packet loss for only 4-5 seconds before stabilizing. Which statement describes why normal operation resumes automatically?
A) Storm control drops only excess packets until traffic falls below the threshold.
B) Storm control shuts down the interface and re-enables it after 5 seconds.
C) Storm control triggers GRES recovery.
D) Storm control applies only to multicast traffic by default.
4. Which statement is correct about the IS-IS ISO NET address?
A) You can only define a single ISO NET address per device.
B) An ISO NET address must be unique for each device in the network.
C) The Area ID must match on all devices within a L2 area.
D) An ISO NET address defined with a system ID of 0000.0000.0000 must be selected as the DIS.
5. Which two statements describe NSR? (Choose two.)
A) NSR rapidly detects link failures.
B) NSR provides routing loop protection.
C) NSR provides high availability with multiple Routing Engines.
D) NSR requires GRES to function properly.
Solutions:
| Question # 1 Answer: B,C | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: C,D |






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