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Juniper JN0-352 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Layer 2 Switching and VLANs | - Frame processing - Inter-VLAN routing - Bridging components - Ports and VLAN tagging - Native VLANs and voice VLANs |
| Topic 2: OSPF | - Link-state database and packet types - Areas and LSA types - Router ID, adjacencies and neighbors |
| Topic 3: Protocol-Independent Routing | - Static, aggregate, generated routes - Load balancing and filter-based forwarding - Martian addresses and RIB groups |
| Topic 4: BGP | - BGP basic operations and message types - EBGP and IBGP peer interactions - Attributes and path selection |
| Topic 5: Tunnels | - GRE and IP-IP configuration and troubleshooting - IP tunneling concepts |
| Topic 6: IS-IS | - Link-state database and PDUs - Levels, areas and metrics - Adjacencies and troubleshooting |
| Topic 7: Spanning Tree | - STP and RSTP concepts, roles and states - Convergence and reconvergence - Bridge Protocol Data Units (BPDUs) |
| Topic 8: High Availability | - Link Aggregation Groups and RTG - Virtual chassis and graceful restart - VRRP, NSR, NSB and BFD |
| Topic 9: Layer 2 Security | - BPDU, loop and root protection - Layer 2 firewall filters - MACsec and storm control - Port security (MAC limiting, DHCP snooping, DAI, IP source guard) |
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
1. Click the Exhibit button. An OSPF broadcast segment has four routers with roles as shown in the exhibit. R1 is currently offline, and default OSPF settings are in place.
In this scenario, what happens when R1 comes back online?
A) R1 becomes the DR and R2 becomes the BDR.
B) R1 becomes the DR and R3 remains the BDR.
C) R1 cannot join the OSPF area until the current DR (R2) is restarted.
D) DR roles do not change; R1 becomes DROther.
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 and blocked-counter are both incremented and the packet is dropped.
B) The icmp-counter is incremented and the packet is dropped.
C) The icmp-counter is incremented and the packet is accepted.
D) The icmp-counter and tcp-counter are both incremented and the packet is accepted.
3. You are a network operator troubleshooting BGP connectivity.
Which two statements are correct about the output shown in the exhibit? (Choose two.)
A) The R1 is configured for AS 65400.
B) The routers are exchanging IPv4 routes.
C) The BGP session is not established.
D) Peer 10.32.1.2 is configured for AS 63645.
4. You are required to ensure that Switch 1 will always be designated as the root bridge when participating in your switched network. What do you need to do to satisfy this requirement?
A) Ensure Switch 1 has the highest system MAC address.
B) Ensure Switch1 has the lowest port priority of all other switches.
C) Ensure Switch1 has the highest port costs of all the other switches.
D) Ensure Switch1 has the lowest bridge priority of all the other switches.
5. You are asked to deploy nonstop active routing (NSR) on a dual-Routing Engine platform. In this scenario, what are two additional requirements for proper operation? (Choose two.)
A) Graceful restart must be enabled on all neighbors.
B) All routing neighbors must support graceful restart extensions.
C) Both Routing Engines must run the same Junos OS version.
D) GRES must be enabled.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: A,B | Question # 4 Answer: D | Question # 5 Answer: C,D |
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