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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IP Multicast | 5-10% | - Multicast routing monitoring and troubleshooting - IGMP operation and configuration - PIM Dense Mode, Sparse Mode and RP mechanisms |
| Topic 2: OSPF | 15-20% | - Neighbor formation, area design and LSA types - Configuration, verification and troubleshooting - Route summarization and redistribution |
| Topic 3: IS-IS | 10-15% | - Configuration and route exchange - Adjacency establishment, levels and metrics - Scalable enterprise deployment and troubleshooting |
| Topic 4: BGP | 15-20% | - Neighbor relationships and session establishment - Routing policies, filtering and common troubleshooting - Route advertisement, attributes and path selection |
| Topic 5: High Availability and Resiliency | 5-10% | - Redundancy protocols and failover mechanisms - Network resiliency design and troubleshooting - Graceful restart and non-stop routing |
| Topic 6: 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 7: Protocol Independent Routing | 10-15% | - Basic routing policy and filter operation - Routing instances and route selection criteria - Routing tables, static routes and route preference |
| Topic 8: Layer 2 Switching and VLANs | 15-20% | - Spanning Tree Protocol (STP, RSTP, MSTP) operation and configuration - Link Aggregation Groups (LAG) and Virtual Chassis - VLAN concepts, configuration, trunking and tagging |
| Topic 9: Tunnels and Overlays | 5-10% | - Tunnel types, encapsulation and operation - GRE, IP-IP and dynamic tunnel configuration - Overlay network design and connectivity |
>> New JN0-352 Test Experience <<
This way you can get knowledge about the Juniper JN0-352 exam environment beforehand. Windows computers support the Juniper JN0-352 desktop practice exam software. It works offline whereas the web-based JN0-352 Practice Test requires an active internet connection. Major browsers and operating systems support the online JN0-352 mock exam.
NEW QUESTION # 152
Which three statements are correct about OSPF packet types? (Choose three.)
Answer: B,C,D
NEW QUESTION # 153
Which two actions are performed by the firewall filter shown in the exhibit? (Choose two.)
Answer: B,D
NEW QUESTION # 154
You need to apply a Layer 2 firewall filter on a Juniper Networks EX Series Switch to block traffic from the source MAC address 00:12:34:56:00:07 entering the switch on ge-0/0/3. After committing the configuration, traffic from the MAC address still passes through. Referring to the exhibit, which statement is correct in this scenario?
Answer: A
Explanation:
The intent of this filter is to match and discard traffic from one single, specific host MAC address, which requires the source-mac-address match condition to reference the complete, exact 48-bit address using an explicit /48 mask (or no mask at all, which Junos treats as an implicit full match) so that only that one precise address is matched. As configured, the term instead specifies a /40 mask on 00:12:34:56:00:07, meaning only the first 40 bits (the first five octets, 00:12:34:56:00) are actually significant to the match, while the sixth octet is effectively wildcarded across its full range; this produces an imprecise, overly broad match criterion rather than the single-host match the administrator intended, and is a common configuration mistake that undermines the predictability and correctness of MAC-based filtering. The lesson tested here is that source and destination MAC address match conditions in Junos firewall filters must be specified with the correct, deliberate, and explicit prefix length appropriate to the intended scope -- typically /48 for a single exact host -- rather than an arbitrary or miscalculated mask value. Firewall filters under family ethernet-switching are fully capable of matching on both source-mac-address and destination-mac-address, which rules out that option entirely. Layer 2 MAC-based filters function correctly on both access and trunk interface modes, so interface type is not a limiting factor here.
There is no indication in the exhibit that the filter's application direction (input versus output) is reversed.
NEW QUESTION # 155
Your router receives two BGP routes for the same prefix. One route is learned from an IBGP neighbor, and the other route is learned from an EBGP neighbor. By default, which route will be selected as active in this scenario?
Answer: A
Explanation:
Once the two candidate routes have equal route preference and equal local preference (both defaulting to 100 unless modified by policy), the Junos BGP algorithm proceeds to its third decision step, which compares the length of each candidate's AS path attribute and selects whichever path carries the shortest AS path, since a shorter path is interpreted as traversing fewer autonomous system hops to reach the origin. This step occurs well before the algorithm ever reaches the specific EBGP-over-IBGP preference rule, which is only evaluated later, after local preference, AS path length, origin type, and MED have all already been compared and found equal between the candidates; because an IBGP-learned copy of a route typically retains the identical AS path that was originally received from the external AS (IBGP does not prepend the local AS number the way crossing an AS boundary does), it is entirely possible, and often the deciding scenario, for AS path length to differ between competing paths well before the algorithm would ever need to fall back on the IBGP- versus-EBGP tiebreak. Selecting a route purely because it was 'learned through IBGP' is not a rule that exists anywhere in the algorithm and would in fact typically be the opposite of Junos's later EBGP-preference tiebreak. Neither next- hop IP address value nor router ID value is compared with a 'highest wins' rule at any point in the standard path selection sequence -- where router ID is used at all, Junos prefers the lowest value, not the highest, making both of those distractors doubly incorrect.
NEW QUESTION # 156
You need to configure a Juniper Networks EX Series Switch to be able to accept both tagged and untagged traffic on the same access port. Which feature will allow you to accomplish this task?
Answer: B
Explanation:
Voice VLAN is the Junos feature specifically designed to allow a single access port to simultaneously handle two distinct traffic streams: untagged data traffic from a PC or workstation using the port's normal access VLAN, and separately tagged voice traffic generated by an IP telephone that is typically daisy-chained between the switch port and the connected PC. When voice VLAN is configured on an access interface, the switch instructs the attached IP phone (commonly via LLDP-MED) which VLAN ID to tag its voice traffic with, and the switch is then able to correctly classify and prioritize that tagged voice traffic into its designated voice VLAN while simultaneously continuing to treat any untagged frames arriving on that same physical port as belonging to the port's regular, untagged access VLAN -- precisely satisfying the requirement to accept both tagged and untagged traffic together on one access port. Native VLAN, by contrast, is a trunk-port-only concept that designates which VLAN untagged frames on a trunk should be associated with; it has no applicability to an access port and does not enable simultaneous tagged traffic acceptance there. Default VLAN simply refers to the VLAN an interface belongs to absent other configuration and carries no dual- traffic capability. IRB interfaces provide Layer 3 gateway functionality for a VLAN and are unrelated to how tagged versus untagged frames are accepted at Layer 2 on a given physical port.
NEW QUESTION # 157
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