(Aug-2025) JN0-1103 Exam Dumps Contains FREE Real Quesions from the Actual Exam [Q83-Q108]

(Aug-2025) JN0-1103 Exam Dumps Contains FREE Real Quesions from the Actual Exam

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Juniper JN0-1103 Exam Syllabus Topics:

Topic	Details
Topic 1	Campus and Branch LAN Design: This section of the exam measures skills of LAN Infrastructure Specialists and covers considerations for designing wired campus or branch LANs. It addresses best practices in campus LAN design, modular design approaches, subnet and VLAN planning, and access control mechanisms. The section also introduces Ethernet VPN-Virtual Extensible LAN (EVPN-VXLAN) architectures and discusses campus oversubscription ratios and design architectures.
Topic 2	Campus and Branch WAN Design: This section of the exam measures skills of WAN Solutions Architects and covers considerations for designing campus or branch WANs. It includes understanding WAN connectivity functions, best practices for WAN design, performance optimization, VPN design, and implementing high availability through active active and active passive configurations. The section also explores Software-Defined WAN (SD-WAN) design considerations, devices, assurance models, and intersite connectivity.
Topic 3	Customer Network Design Requirements: This section of the exam measures skills of Network Design Engineers and covers the foundational aspects of network design. It includes understanding Juniper's life-cycle service approach, defining proposal boundaries, and considerations for both greenfield and brownfield deployments. The section also addresses top-down network design methodologies and capacity planning to ensure scalable and efficient network infrastructures.
Topic 4	Network Management or Reliability: This section of the exam measures skills of Network Operations Center (NOC) Engineers and covers design considerations for ensuring business continuity. Topics include high-resiliency design, implementing link and device-level redundancy, and utilizing technologies like Multihomed Ethernet Segment Identifier Link Aggregation Groups (ESI LAGs) and virtual chassis. The section also explores Juniper SRX firewall redundancy and best practices for campus network redundancy.
Topic 5	Data Center Network Design: This section of the exam measures skills of Data Center Network Engineers and covers considerations for general data center network design. Topics include data center design best practices, understanding traffic patterns, virtual chassis implementation, and environmental considerations. The section also delves into data center fabric architectures, benefits of IP fabric over traditional architectures, spine-and-leaf device placement, underlay and overlay design, routing protocol selection, and best practices for IP fabric scaling.

 

NEW QUESTION # 83
Click the Exhibit button.

Referring to the exhibit, what is the highlighted device in a data center called?

• A. a core node
• B. a leaf node
• C. a spine node
• D. an aggregation node

Answer: B

Explanation:
The highlighted device connects to multiple servers and also connects upstream to spine switches. This placement and function identify it as a leaf node in a leaf-spine architecture, responsible for connecting endpoints (such as servers) into the fabric.

NEW QUESTION # 84
What are three examples of physical security? (Choose three.)

• A. access door keypads
• B. security cameras
• C. man in the middle
• D. a mantrap
• E. intrusion detection and prevention

Answer: A,B,D

NEW QUESTION # 85
In which two situations does power supply redundancy make sense in a network design? (Choose two.)

• A. when redundant power sources are not present on site
• B. when using an SRX320
• C. when a two-device HA solution is not possible
• D. when redundant power sources are present on site

Answer: C,D

NEW QUESTION # 86
You are asked to deploy VPNs in your network.
What are two deployment models you would use? (Choose two.)

• A. hub and spoke
• B. overlay
• C. hierarchical
• D. site to site

Answer: A,D

NEW QUESTION # 87
What are two guidelines when designing campus networks? (Choose two.)

• A. The design must allow for network resource availability.
• B. The design must protect customer resources.
• C. The design must account for high control plane resources.
• D. The design must allow for high bandwidth.

Answer: A,B

NEW QUESTION # 88
When discussing network reliability, what does the term "five nines" mean?

• A. The network is up 99.999% of the time.
• B. The network is up .09999% of the time.
• C. The network is up .99999% of the time.
• D. The network is up 9.9999% of the time.

Answer: A

NEW QUESTION # 89
Which Junos Space application can be used to store and manage events for SRX devices?

• A. Network Director
• B. Connectivity Services Director
• C. Security Director: Logging and Reporting
• D. Network Management Platform

Answer: C

NEW QUESTION # 90
Virtual Chassis solutions for large campus networks are designed to eliminate the requirement for which protocol?

• A. SNMP
• B. IPv6
• C. STP
• D. OSPF

Answer: C

NEW QUESTION # 91
You are asked to design a backup schedule using existing tools and incurring no additional expense.
Which two protocols would you consider to accomplish this task? (Choose two.)

• A. SMTP
• B. SFTP
• C. SNMP
• D. rsync

Answer: B,D

Explanation:
rsync and SFTP are commonly used, cost-free tools for creating and scheduling secure backups of configuration files or data. Both support automation via scripts, making them suitable for designing a reliable backup solution without incurring additional costs.

NEW QUESTION # 92
What is the function of the core tier in a traditional three tier Layer 2 network environment?

• A. The core tier interfaces with lower tier devices and provides a high-speed interconnect with the north- bound WAN edge device.
• B. The core tier connects to the Internet and with lower tier Layer 2 devices to provide Layer 3 gateway services for the network.
• C. The core tier provides network connectivity to end-user devices and other hosts and enforces network access policy.
• D. The core tier relays traffic between the lower tier Layer 2 devices and functions as the gateway to the upper tier device.

Answer: A

NEW QUESTION # 93
When determining the oversubscription ratio for an IP fabric, which two statements are true? (Choose two.)

• A. Adding leaf nodes to the IP fabric decreases the oversubscription ratio.
• B. Removing spine nodes from the IP fabric increases the oversubscription ratio.
• C. Removing leaf nodes from the IP fabric increases the oversubscription ratio.
• D. Adding spine nodes to the IP fabric decreases the oversubscription ratio.

Answer: B,D

Explanation:
The oversubscription ratio in an IP fabric is influenced by the number of spine nodes relative to the number of leaf nodes and their uplinks.
Removing spine nodes reduces available uplink bandwidth, increasing oversubscription.
Adding spine nodes increases available bandwidth between leafs and spines, decreasing the oversubscription ratio.

NEW QUESTION # 94
You are asked to provide a design proposal for an enterprise customer that currently has a three-tier switching infrastructure. The customer wants your design to collapse their Layer 2 infrastructure into two distinct layers.
In this scenario, what are two benefits of moving to the new infrastructure? (Choose two.)

• A. The number of connections between devices is decreased.
• B. The overall network performance is increased.
• C. The total number of devices is increased.
• D. The number of protocols used is decreased.

Answer: A,B

NEW QUESTION # 95
You are asked to document the existing network and security infrastructure before a design update project begins.
Which three actions would be appropriate as part of your documentation project? (Choose three.)

• A. Review the available documentation with the server administrators.
• B. Survey all data centers and wiring closets.
• C. Review the available documentation with the network administrators.
• D. Review the available documentation with the purchasing department.
• E. Review the available documentation with the security administrators.

Answer: B,C,E

NEW QUESTION # 96
Which application would be used to manage Juniper EX Series switches?

• A. Network Director
• B. Log Manager
• C. Security Director
• D. Services Activation Director

Answer: A

NEW QUESTION # 97
You are working with a customer who specializes in selling custom toy boxes in more than 50 stores.
The customer's financial information must be kept secure.
Which security standard should you include in your design proposal?

• A. PCI compliance
• B. user-based firewall
• C. NAC
• D. BYOD

Answer: A

NEW QUESTION # 98
Network Director is an example of which type of network management application?

• A. centralized
• B. op script
• C. on-box
• D. out-of-band

Answer: A

NEW QUESTION # 99
Your customers new data center contains network devices from multiple vendors. You have been asked to propose two technologies that will work among all the vendors' networking equipment.
Which two technologies can you recommend for the design? (Choose two.)

• A. EIGRP
• B. CDP
• C. MACsec
• D. VXLAN

Answer: C,D

NEW QUESTION # 100
Which solution ensures data security in this environment?

• A. Use MACsec on all inter-switch connections.
• B. Use LACP on all inter-switch connections.
• C. Use LLDP on all inter-switch connections.
• D. Use PNAC on all inter-switch connections.

Answer: D

NEW QUESTION # 101
You are working on a service provider network. You will provide network services to multiple companies across your network, while maintaining separation of traffic for different corporate entities.
What are two high-level design alternatives that will meet your requirement? (Choose two.)

• A. MSDP
• B. IPsec VPN
• C. MPLS
• D. VRRP

Answer: B,C

NEW QUESTION # 102
Your customer is a growing enterprise with limited capital to invest in network expansions.
They have noticed performance problems in their campus LAN, which have been traced back to a high oversubscription ratio between the aggregation and core layers. The customer's aggregation and core switches are connected using a single 1GbE connection.
Which solution improves network performance?

• A. Add additional 1GbE connections between the aggregation and core layers with PNAC.
• B. Add additional 1GbE connections between the aggregation and core layers with LLDP.
• C. Add additional 1GbEconnections between the aggregation and core layers with MACsec.
• D. Add additional 1GbE connections between the aggregation and core layers with LACP.

Answer: D

NEW QUESTION # 103
You are designing a network management strategy for a new network.
The requirements for the management of network devices are shown below:
- Administrator passwords must have an expiration date.
- Administrators must be assigned role-specific privileges on each device.
In this scenario, which statement is true?

• A. A centralized AAA system must be used for authentication.
• B. Local authentication must be used on each device.
• C. Each user must have a unique login account.
• D. All devices must be configured with the same privilege levels.

Answer: A

NEW QUESTION # 104
You customer currently has a hub-and-spoke VPN but has seen that the forwarding capabilities of the hub device being overwhelmed during times of high traffic between spoke devices. Also, due to recent cutbacks, the IT staff is already overwhelmed.
What should you recommend as a solution?

• A. Replace the hub-and-spoke VPN with a SSL VPN.
• B. Replace the hub-and-spoke VPN with a full mesh MPLS VPN.
• C. Replace the hub-and-spoke VPN with a full mesh VPN.
• D. Replace the hub-and-spoke VPN with an ADVPN.

Answer: D

NEW QUESTION # 105
You are designing the network for a small campus using Mist. You have two Junos switches that support EVPN-VXLAN core devices and two Junos access switches that do not support EVPN-VXLAN.
Which campus design is available with these devices?

• A. EVPN Multihoming
• B. Campus Fabric 3-staqe IP Clos
• C. Campus Fabric core-distribution
• D. Campus Fabric 5-staqe IP Clos

Answer: C

Explanation:
Since only the core switches support EVPN-VXLAN, and the access switches do not, the appropriate design is a Campus Fabric core-distribution model. This design allows EVPN-VXLAN at the core while maintaining compatibility with non-fabric-capable access switches using traditional Layer 2 or Layer 3 connectivity.

NEW QUESTION # 106
You are asked to review a migration plan from standalone SRX to SRX chassis clusters that connect to the core network.
Which two types of interfaces will be required to support this design on the SRX Series devices? (Choose two.)

• A. loopback
• B. management
• C. fab
• D. control

Answer: C,D

Explanation:
To support SRX chassis cluster design, two special interface types are required:
fab (fabric) interfaces for data plane synchronization and control interfaces for control plane communication between the nodes in the cluster.

NEW QUESTION # 107
What is the function of the aggregation tier in a traditional three tier Layer 2 network environment?

• A. The aggregation tier provides network connectivity to end-user devices and other hosts and enforces network access policy.
• B. The aggregation tier interfaces with lower tier Layer devices and provides a high-speed interconnect with the north-bound WAN edge device.
• C. The aggregation tier relays packets between the lower tier Layer 2 devices and functions as the gateway to the upper tier Layer 2 device.
• D. The aggregation tier connects to the Internet and with lower tier Layer 2 devices to provide Layer 3 gateway services for the network.

Answer: C

NEW QUESTION # 108
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