Juniper JN0-352 Exam Actual Tests, Reliable JN0-352 Guide Files

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Juniper JN0-352 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Layer 2 Switching and VLANs	15-20%	- Link Aggregation Groups (LAG) and Virtual Chassis - VLAN concepts, configuration, trunking and tagging - Spanning Tree Protocol (STP, RSTP, MSTP) operation and configuration
Topic 2: 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 3: Tunnels and Overlays	5-10%	- Tunnel types, encapsulation and operation - Overlay network design and connectivity - GRE, IP-IP and dynamic tunnel configuration
Topic 4: IP Multicast	5-10%	- IGMP operation and configuration - Multicast routing monitoring and troubleshooting - PIM Dense Mode, Sparse Mode and RP mechanisms
Topic 5: OSPF	15-20%	- Configuration, verification and troubleshooting - Neighbor formation, area design and LSA types - Route summarization and redistribution
Topic 6: Layer 2 Security	10-15%	- DHCP snooping, Dynamic ARP Inspection and IP Source Guard - Port security, MAC limiting and storm control - Layer 2 firewall filters and security features
Topic 7: IS-IS	10-15%	- Configuration and route exchange - Scalable enterprise deployment and troubleshooting - Adjacency establishment, levels and metrics
Topic 8: High Availability and Resiliency	5-10%	- Redundancy protocols and failover mechanisms - Graceful restart and non-stop routing - Network resiliency design and troubleshooting
Topic 9: BGP	15-20%	- Neighbor relationships and session establishment - Routing policies, filtering and common troubleshooting - Route advertisement, attributes and path selection

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JN0-352 test braindumps: Enterprise Routing and Switching, Specialist (JNCIS-ENT) & JN0-352 testking PDF

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Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions (Q128-Q133):

NEW QUESTION # 128
You need to block SSH (TCP port 22) traffic from the 192.168.10.0/24 network.
Which firewall filter term is correct in this scenario?

A. term block-ssh { from { source-address 192.168.10.0/24; protocol tcp; destination-port 22; } then discard; }
B. term block-ssh { from { source-address 192.168.10.0/24; protocol tcp; source-port 22; } then discard; }
C. term block-ssh { from { source-address 192.168.10.0/24; service ssh; } then reject; }
D. term block-ssh { from { destination-address 192.168.10.0/24; protocol tcp; destination-port 22; } then discard; }

Answer: A

NEW QUESTION # 129
Which two statements are true about routing instances on Junos devices? (Choose two.)

A. A user-configured virtual-router instance type is used for Layer 2 and Layer 3 VPNs.
B. A user-configured virtual-router instance type is used for non-VPN-related applications.
C. A user-configured routing instance automatically uses the master inet.0 table unless configured otherwise.
D. A user-configured routing instance automatically generates a new routing table.

Answer: B,D

Explanation:
The virtual-router routing-instance type in Junos is a general-purpose instance type intended for creating isolated, independent routing and forwarding contexts within a single physical device for applications that have nothing to do with MPLS-based VPN services - common use cases include multi-tenant network segmentation, filter-based forwarding deployments, and simple traffic isolation between departments or customers on a shared switch or router, all of which are non-VPN-related applications by nature. Layer 2 and Layer 3 VPN services, by contrast, rely on a different, dedicated routing-instance type specifically named vrf, which integrates with MPLS/BGP-based VPN signaling, route distinguishers, route targets, and PE-CE routing exchange; virtual-router instances do not participate in that VPN signaling framework at all, which is why the statement associating virtual-router with VPN use is incorrect. Whenever an administrator creates any user-configured routing instance - regardless of its specific type - Junos automatically allocates and generates a brand-new, dedicated routing table for that instance, named according to the pattern instance- name.inet.0 (or the appropriate address-family suffix), which is entirely separate from and independent of the default master inet.0 table used by the global/default routing context. Because each new routing instance receives its own distinct table rather than sharing or defaulting into the master inet.0 table, the statement claiming instances automatically fall back to using inet.0 unless configured otherwise is factually incorrect; instances are isolated by design from the outset. Reference topics: Junos Enterprise Routing - Protocol Independent Routing, Routing Instance Types and Table Allocation.

NEW QUESTION # 130
In RSTP, which three port roles are associated with the discarding state? (Choose three.)

A. designated
B. disabled
C. backup
D. root
E. alternate

Answer: B,C,E

Explanation:
In Rapid Spanning Tree Protocol (RSTP), there are several port roles that determine the behavior of the port in the spanning tree. The roles include root, designated, alternate, backup, and disabled.
The discarding state is associated with the backup, alternate, and disabled roles. In a stable topology with consistent port roles throughout the network, RSTP ensures that every root port and designated port immediately transition to the forwarding state while all alternate and backup ports are always in the discarding state. Disabled ports are also in the discarding state.

NEW QUESTION # 131
You are asked to explore adding BGP route reflectors to allow for increased scale in your core network. Which statement is correct in this scenario?

A. The cluster ID is required to prevent routing loops.
B. Route reflectors are required whenever internal BGP (IBGP) sessions are needed.
C. The cluster ID is not required to use route reflectors.
D. Route reflectors require that the network is connected in a physical full mesh.

Answer: A

NEW QUESTION # 132
An EBGP session sources its TCP connection from which IP address?

A. The IP address of the interface that connects the two BGP speakers.
B. The IP address of the preferred address assigned to the loopback interface.
C. The IP address assigned as the router ID.
D. The IP address of the primary address assigned to the loopback interface.

Answer: A

NEW QUESTION # 133
......

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