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Juniper JN0-352 Exam Overview:
| Certification Vendor: | Juniper Networks |
| Exam Name: | Enterprise Routing and Switching, Specialist (JNCIS-ENT) Exam |
| Exam Number: | JN0-352 |
| Exam Price: | $300 USD |
| Certificate Validity Period: | 3 years |
| Passing Score: | 700/1000 |
| Related Certifications: | JNCIA-Junos JNCIP-ENT JNCIE-ENT |
| Exam Duration: | 90 minutes |
| Exam Format: | Multiple choice, Scenario-based, Configuration-related |
| Available Languages: | English |
| Real Exam Qty: | 65 |
| Recommended Training: | Junos Intermediate Routing (JIR) Junos Enterprise Switching (JEX) |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Juniper JN0-352 Sample Questions |
| Exam Way: | Computer-based, online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | JNCIA-Junos certification recommended or equivalent knowledge |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncis-ent.html |
Juniper JN0-352 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IS-IS | 10-15% | - Scalable enterprise deployment and troubleshooting - Adjacency establishment, levels and metrics - Configuration and route exchange |
| Topic 2: BGP | 15-20% | - Neighbor relationships and session establishment - Route advertisement, attributes and path selection - Routing policies, filtering and common troubleshooting |
| Topic 3: High Availability and Resiliency | 5-10% | - Network resiliency design and troubleshooting - Graceful restart and non-stop routing - Redundancy protocols and failover mechanisms |
| Topic 4: 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 5: IP Multicast | 5-10% | - Multicast routing monitoring and troubleshooting - IGMP operation and configuration - PIM Dense Mode, Sparse Mode and RP mechanisms |
| Topic 6: Layer 2 Security | 10-15% | - Port security, MAC limiting and storm control - DHCP snooping, Dynamic ARP Inspection and IP Source Guard - Layer 2 firewall filters and security features |
| Topic 7: Tunnels and Overlays | 5-10% | - Overlay network design and connectivity - GRE, IP-IP and dynamic tunnel configuration - Tunnel types, encapsulation and operation |
| Topic 8: Layer 2 Switching and VLANs | 15-20% | - VLAN concepts, configuration, trunking and tagging - Link Aggregation Groups (LAG) and Virtual Chassis - Spanning Tree Protocol (STP, RSTP, MSTP) operation and configuration |
| Topic 9: OSPF | 15-20% | - Neighbor formation, area design and LSA types - Route summarization and redistribution - Configuration, verification and troubleshooting |
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
1. You have configured OSPF routing as shown in the exhibit. You notice that all interfaces have formed full adjacencies, with the exception of the interfaces connecting R3 and R4 with a status of 2Way.
What is the reason for this status?
A) DROther routers will not form a full adjacency with each other.
B) The interface-type is not configured as p2p.
C) The two routers must be configured in different areas.
D) The two routers must both be configured as DR routers.
2. What is the purpose of the native VLAN feature on the Juniper Networks EX Series Switches?
A) It restricts traffic on a trunk port to traffic that matches the configured native-vlan-id.
B) It enables an access port to accept and forward untagged traffic without a tag assigned.
C) It assigns a specific VLAN tag to all access ports that do not have a specific VLAN assigned.
D) It enables a trunk port to accept and forward untagged traffic.
3. Which statement is correct about GRE tunnels?
A) The time-to-live field in the tunnel payload is decremented during transit.
B) GRE tunnels only support encapsulating IP traffic.
C) GRE tunnels only support encapsulating non-IP traffic.
D) There are 20 bytes of overhead with GRE encapsulation.
4. You are verifying a new BGP peering session with an ISP. You issue the show bgp summary command, but the output shows the peer in the Active state. Which statement is correct in this scenario?
A) The session is established, and routing information is being exchanged.
B) The session is actively trying to establish a TCP connection.
C) The session is waiting to be configured.
D) The session is idle and disabled.
5. Which statement describes the additional overhead added when a packet is encapsulated in a GRE tunnel?
A) GRE adds 12 bytes of overhead to each packet.
B) GRE adds 32 bytes of overhead to each packet.
C) GRE adds 20 bytes of overhead to each packet.
D) GRE adds 24 bytes of overhead to each packet.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: D |
Juniper JN0-352 Exam Overview:
| Certification Vendor: | Juniper Networks |
| Exam Name: | Enterprise Routing and Switching, Specialist (JNCIS-ENT) Exam |
| Exam Number: | JN0-352 |
| Exam Price: | $300 USD |
| Certificate Validity Period: | 3 years |
| Passing Score: | 700/1000 |
| Related Certifications: | JNCIA-Junos JNCIP-ENT JNCIE-ENT |
| Exam Duration: | 90 minutes |
| Exam Format: | Multiple choice, Scenario-based, Configuration-related |
| Available Languages: | English |
| Real Exam Qty: | 65 |
| Recommended Training: | Junos Intermediate Routing (JIR) Junos Enterprise Switching (JEX) |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Juniper JN0-352 Sample Questions |
| Exam Way: | Computer-based, online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | JNCIA-Junos certification recommended or equivalent knowledge |
| Official Syllabus URL: | https://www.juniper.net/us/en/training/certification/tracks/enterprise-routing-switching/jncis-ent.html |
Juniper JN0-352 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: IS-IS | 10-15% | - Scalable enterprise deployment and troubleshooting - Adjacency establishment, levels and metrics - Configuration and route exchange |
| Topic 2: BGP | 15-20% | - Neighbor relationships and session establishment - Route advertisement, attributes and path selection - Routing policies, filtering and common troubleshooting |
| Topic 3: High Availability and Resiliency | 5-10% | - Network resiliency design and troubleshooting - Graceful restart and non-stop routing - Redundancy protocols and failover mechanisms |
| Topic 4: 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 5: IP Multicast | 5-10% | - Multicast routing monitoring and troubleshooting - IGMP operation and configuration - PIM Dense Mode, Sparse Mode and RP mechanisms |
| Topic 6: Layer 2 Security | 10-15% | - Port security, MAC limiting and storm control - DHCP snooping, Dynamic ARP Inspection and IP Source Guard - Layer 2 firewall filters and security features |
| Topic 7: Tunnels and Overlays | 5-10% | - Overlay network design and connectivity - GRE, IP-IP and dynamic tunnel configuration - Tunnel types, encapsulation and operation |
| Topic 8: Layer 2 Switching and VLANs | 15-20% | - VLAN concepts, configuration, trunking and tagging - Link Aggregation Groups (LAG) and Virtual Chassis - Spanning Tree Protocol (STP, RSTP, MSTP) operation and configuration |
| Topic 9: OSPF | 15-20% | - Neighbor formation, area design and LSA types - Route summarization and redistribution - Configuration, verification and troubleshooting |
Juniper Enterprise Routing and Switching, Specialist (JNCIS-ENT) Sample Questions:
1. You have configured OSPF routing as shown in the exhibit. You notice that all interfaces have formed full adjacencies, with the exception of the interfaces connecting R3 and R4 with a status of 2Way.
What is the reason for this status?
A) DROther routers will not form a full adjacency with each other.
B) The interface-type is not configured as p2p.
C) The two routers must be configured in different areas.
D) The two routers must both be configured as DR routers.
2. What is the purpose of the native VLAN feature on the Juniper Networks EX Series Switches?
A) It restricts traffic on a trunk port to traffic that matches the configured native-vlan-id.
B) It enables an access port to accept and forward untagged traffic without a tag assigned.
C) It assigns a specific VLAN tag to all access ports that do not have a specific VLAN assigned.
D) It enables a trunk port to accept and forward untagged traffic.
3. Which statement is correct about GRE tunnels?
A) The time-to-live field in the tunnel payload is decremented during transit.
B) GRE tunnels only support encapsulating IP traffic.
C) GRE tunnels only support encapsulating non-IP traffic.
D) There are 20 bytes of overhead with GRE encapsulation.
4. You are verifying a new BGP peering session with an ISP. You issue the show bgp summary command, but the output shows the peer in the Active state. Which statement is correct in this scenario?
A) The session is established, and routing information is being exchanged.
B) The session is actively trying to establish a TCP connection.
C) The session is waiting to be configured.
D) The session is idle and disabled.
5. Which statement describes the additional overhead added when a packet is encapsulated in a GRE tunnel?
A) GRE adds 12 bytes of overhead to each packet.
B) GRE adds 32 bytes of overhead to each packet.
C) GRE adds 20 bytes of overhead to each packet.
D) GRE adds 24 bytes of overhead to each packet.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: D |
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