Actual Juniper JN0-352 Exam Questions with Save Time and Money

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Juniper JN0-352 Exam Syllabus Topics:

SectionObjectives
Topic 1: High Availability- Redundancy concepts in enterprise networks
- VRRP configuration and behavior
Topic 2: Network Services- Basic multicast concepts
- NAT concepts in Junos
Topic 3: Routing Protocols- OSPF configuration and troubleshooting
- BGP fundamentals and policy control
- IS-IS overview
Topic 4: Operations and Troubleshooting- Troubleshooting routing and switching issues
- Junos CLI monitoring tools
Topic 5: Routing Policy and Filtering- Policy statements
- Route filtering and preference control
Topic 6: Layer 2 Switching Technologies- Ethernet switching concepts
- Spanning Tree Protocol (STP/RSTP/MSTP)
- VLANs and trunking

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Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions (Q119-Q124):

NEW QUESTION # 119
You deployed a new EX Series switch with DHCP snooping enabled and you do not see any entries in the snooping databases for an interface. Which two Juniper configurations for that interface caused this issue? (Choose two.)

Answer: C,D

Explanation:
A is correct because the interface is configured as a disabled port. A disabled port does not forward any traffic, including DHCP packets. Therefore, DHCP snooping cannot learn any MAC addresses or lease information from a disabled port.
C is correct because the interface is configured as a trunk port. By default, all trunk ports on the switch are trusted for DHCP snooping. This means that DHCP snooping does not inspect or filter any DHCP packets received on a trunk port. Therefore, DHCP snooping does not add any entries to the snooping database for a trunk port.


NEW QUESTION # 120
How many bytes of overhead does an IP-IP tunnel add to a packet?

Answer: B


NEW QUESTION # 121
Which two statements are correct about tunnels? (Choose two.)

Answer: A,B

Explanation:
For a tunnel to be established, the endpoints must have a route to each other. This is essential for the encapsulated packets to reach their destination.
Tunnels encapsulate packets, adding extra headers for the encapsulation protocol, which increases the overall packet size.


NEW QUESTION # 122
Referring to the exhibit, which two statements are correct? (Choose two.)

Answer: A,C


NEW QUESTION # 123
What are two characteristics of IS-IS? (Choose two.)

Answer: C,D

Explanation:
IS-IS (Intermediate System to Intermediate System) was designed by ISO as a link-state Interior Gateway Protocol for routing within a single autonomous system, functioning on a hierarchical two-level model conceptually similar to OSPF's areas, which makes the first statement unambiguously correct. Within that hierarchy, Level 1 routers maintain detailed topology information only for their own local area and use a default route toward the nearest Level 2 or Level 1/Level 2 router to reach destinations outside the area; they explicitly do not carry inter-area topology information and therefore cannot route traffic between areas on their own. Routers that participate in both levels simultaneously -- Level 1/Level 2 (L1/L2) routers -- sit at the area boundary, maintaining a Level 1 database for their local area and a Level 2 database for the backbone, and it is specifically these dual- level routers that stitch inter-area traffic together, forwarding packets from the local area into the Level 2 backbone and vice versa, which confirms the second correct statement. Regarding route preference, Junos assigns distinct default preference (administrative distance) values of 15 for IS-IS Level 1 routes and 18 for IS-IS Level 2 routes -- neither of which is 20 -- so the preference-value statement is factually incorrect and included as a distractor testing precise knowledge of Junos default protocol preferences.


NEW QUESTION # 124
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