JNCIS-QF Exam Objectives (Exam: JN0-370)

QFabric System Concepts
Identify concepts, general functionality and architecture of QFabric systems
Components and architecture
Control/data plane connections
Software architecture and components
System functions
QFabric protocols
Describe site planning considerations and requirements
Pre-installation considerations

System Setup, Configuration and Troubleshooting
Configure and verify the basic elements of QFabric systems
System setup
Initial configuration (e.g., node groups)
Interfaces and LAGs
Demonstrate knowledge of how to monitor and troubleshoot system operations
Data/control plane discovery
Discovery protocol
Interface/port
System functions
System processes and services
Data/control plane connections
Troubleshooting tools – logs, traceoptions, Fabric Analyzer, Fabric Ping and Traceroute, Analyzer, ‘beacon’
Core dumps
System-specific IP address and subnet assignments

Layer 2 Operations and Troubleshooting
Describe Layer 2 concepts, features and operations for QFabric systems
VLAN tagging, LAGs, STP
Connection types
Route exchange
Traffic flow and packet forwarding
Configure and monitor Layer 2 functionality for a QFabric system
Interfaces and VLANs
RSTP
Demonstrate knowledge of how to troubleshoot QFabric system Layer 2 operations
L2 protocol issues
Traffic flow issues

Layer 3 Operations and Troubleshooting
Describe Layer 3 concepts, features and operations for QFabric systems
L3 interfaces and LAGs
Routing (static, OSPF, BGP)
Route and address resolution
Traffic flow and packet forwarding
Configure and monitor Layer 3 functionality for a QFabric system
Interfaces and RVIs
Static routes, routing protocols
Demonstrate knowledge of how to troubleshoot QFabric system Layer 3 operations
L3 protocol issues
Traffic flow issues

Data Center Storage Fundamentals
Identify various data center storage technologies
Storage options
Deployment options and considerations
Storage device types
Storage access protocols
Describe Fibre Channel (FC) and Fibre Channel over Ethernet (FCoE) features
Concepts and components
Describe Data Center Bridging concepts and functionality
Priority-based flow control (PFC)
Enhanced Transmission Selection (ETS)
Quantized Congestion Notification (QCN)
Configure and monitor FCoE for a QFabric system
Interfaces and VLANs
FCoE interfaces and fabrics
Protocols
Demonstrate knowledge of how to troubleshoot FCoE in a QFabric system environment
Device login issues
Class of service issues
Traffic flow issues
Performance issues
Protocol issues
QUESTION 1
Which three statements are correct about the QFabric system control plane? (Choose three.)

A. It discovers and manages paths.
B. It manages FCoE-to-FC conversions.
C. It manages Layer 2 and Layer 3 load balancing between nodes and interconnects.
D. It discovers and provisions the system.
E. It manages routing and switching protocols.

Answer: A,D,E

Explanation:


QUESTION 2
The QFabric system data plane performs which three functions? (Choose three.)

A. It provides connectivity for network devices.
B. It manages routing and switching protocols.
C. It interconnects Node devices with the fabric.
D. It exchanges reachability information.
E. It forwards traffic through devices of the system.

Answer: A,C,E

Explanation:


QUESTION 3
You are determining the DC power requirements for a QFX3000-M QFabric system.
Which two devices support DC power? (Choose two.)

A. a QFX3100 Director device
B. a QFX3600-I Interconnect device
C. a QFX3500 Node device
D. a QFX3800-I Interconnect device

Answer: B,C

Explanation:


QUESTION 4
You configured a BGP peering session between your QFabric system and an attached device, but
the session is not coming up.
What are two reasons for this happening? (Choose two.)

A. The inet protocol family is not configured on the QFabric system.
B. There is a mismatching MED attribute configured.
C. There are no RVIs configured on the QFabric system.
D. The QFabric system is configured with two network Node groups.

Answer: A,C

Explanation:


QUESTION 5
You have recently connected an aggregated interface between a server Node group and a blade
chassis switch and the interface is down.
Which three reasons would explain the interface being down? (Choose three.)

A. The interface is using an unsupported or malfunctioning transceiver.
B. Both sides of the connection have set LACP active.
C. Both sides of the connection have set LACP passive.
D. Aggregated interfaces are only supported on the network Node group.
E. Spanning tree BPDUs have been received on the aggregated interface.

Answer: A,C,E

Explanation:

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