JNCIS-WLAN Exam Objectives (Exam: JN0-380)

Wireless LAN Overview
Identify concepts, general features and functionality of the Juniper Networks wireless LAN product line
WLAN standards
WLC protocols
WLAN authentication, authorization and encryption
Hardware – APs, controllers, servers
Software – RingMaster
Licensing

Planning
Describe the elements of coverage area model and requirements
RF environment
Device requirements
Site visit
Describe the elements of predictive planning with RingMaster
AutoCAD file requirements
Site creation
Area planning
Identify various other planning parameters
Sites, buildings and floors
Coverage areas
RF obstacles
APs
Redundancy options
Data and VoIP capacity options

Initial Setup and Installation
Identify wireless LAN hardware, software and licensing requirements
WLAN controllers (WLCs)
RingMaster
Demonstrate knowledge of how to perform setup and initial installation of Juniper Networks wireless LAN hardware and software
AP boot and configuration options
WLC configuration using QuickStart and RingMaster
RingMaster installation and setup

Deployment and Configuration
Describe the elements of planning and data gathering for a deployment project
Data forwarding models
Centralized vs. distributed controllers
Capacity planning and bandwidth considerations
Redundancy planning
Coverage details
Network details
Site visit
Demonstrate knowledge of how to implement services for the Juniper Networks wireless LAN
Service types and characteristics
Radio profile
Service profile
AAA server definitions
Network access rules
Service mapping

Domains and High Availability
Describe the concepts, benefits and operation of domains and high availability
Mobility Domain seed
Synchronization
Redundancy and interleaving
Security
Clustering guidelines
Cluster AP affinity groups
Demonstrate knowledge of how to configure and monitor domains and high availability
Mobility Domain
Clusters
Network Domain

Architecture
Describe various architecture considerations for a Juniper Networks wireless LAN environment
Voice support – SIP recognition, call admission control, QoS
Mesh services – mesh APs, wireless bridging
Spectrum analysis
Remote AP
Client load balancing
Bandwidth control
NAT/PAT implementation options
Advanced RADIUS implementation
Location detection
VLAN pooling
High-latency network support
Adaptive channel (Auto-tune enhancements)
Transmit beam-forming
IPv6 support

Wireless LAN Services
Describe the concepts, operation and functionality of various wireless LAN services
Open, 802.1x, Web Portal, voice, and mesh concepts and characteristics
Services configuration options
Describe and configure 802.1x options
Pass through mode vs offload mode
EAP Protocols
Describe and configure Web portal options
Local vs external Web portal configuration
Certificate and encryption options

Security
Describe the steps and components for securing a WLAN
Threat evaluation
Access control
Securing and separating services
Client protection
Intrusion detection and protection systems (IDS/IPS)
802.1x
Certificates

Management and Reporting
Demonstrate knowledge of how to manage a Juniper Networks wireless LAN environment
RingMaster server and client
WLCs
Hardware upgrades
System recovery
Configuration management (backup and restore)
Demonstrate knowledge of how to implement RingMaster reporting
Report definition and generation
Scheduling

Integration
Describe how the WLS can integrate with other network technologies
RADIUS
DHCP options
LDAP
Snoop
DNS for APs and WLCs

Monitoring and Troubleshooting
Demonstrate knowledge of how to monitor the Juniper Networks wireless LAN environment
SNMP
Polling
Dashboard
System status
Clients
Traffic
Alarms
Security
Event log
Demonstrate knowledge of how to troubleshoot the Juniper Networks wireless LAN environment
Troubleshooting process and flow
Network troubleshooting tools
Trace messages
MSS commands
AP issues
Client issues
Controller issues
Configuration issues
RingMaster issues
Network integration issues
Services issues
Clustering issues

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QUESTION 1
Which RingMaster license is needed to enable the RingMaster API?

A. base license
B. USM license
C. Agent license
D. AP license

Answer: C

Explanation:

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QUESTION 2
A small business is using Radio Frequency (RF) planning to establish and limit the number of
access points (APs) needed for a coverage area. The company is trying to decide what to use for
the baseline association rate for clients to connect to the access points.
Which two statements are correct? (Choose two.)

A. A baseline association rate of 54 Mbps requires more APs than a baseline association rate of
18 Mbps.
B. A baseline association rate of 18 Mbps requires more APs than a baseline association rate of
54 Mbps.
C. A baseline association rate of 54 Mbps requires the client to be farther away from the AP to
reach the targeted rate.
D. A baseline association rate of 18 Mbps requires the client to be farther away from the AP to
reach the targeted rate.

Answer: A,D

Explanation:

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QUESTION 3
You are using the RF Planning tool in RingMaster to configure a data capacity plan for a client.
Which three settings are required on the Data Capacity Options page? (Choose three.)

A. AP authentication mode
B. Per Station Throughput
C. Expected Station Count
D. Coverage Area
E. Station Oversubscription Ratio

Answer: B,C,E

Explanation:

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QUESTION 4
Multiple users are complaining that their wireless connections are not working.
Which RingMaster screen would the administrator use for troubleshooting?

A. Alarms
B. Clients
C. Monitor
D. Verification

Answer: C

Explanation:

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QUESTION 5
A network administrator must perform a software upgrade of a factory-default wireless LAN
controller (WLC) using the CLI.
Which three actions are required? (Choose three.)

A. Set the inactive boot partition to the active boot partition.
B. Add an upgraded license for the new image.
C. Copy the new image to the inactive boot partition using TFTP.
D. Reboot the controller.
E. Upgrade the connected access points (APs) before upgrading the controller.

Answer: A,C,D

Explanation:

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