Technical Education
JNCIA-DX Exam Objectives (Exam: JN0-321)
This list is intended to provide a general view of the skill set required to successfully complete the specified certification exam. Topics listed are subject to change.
- Basic DX Operations
- Initial Configuration
- System Management
- Basic Web Cluster Features
- Advanced Cluster Features
- Redirectors and Forwarders
- Server Load Bancing
- AppRules
- 3G Cache
- Global Server Load Balancing (GSLB)
- ActiveN
- High-Availability
- Troubleshooting
Basic DX Operations
- Describe DX acceleration
- List the primary DX benefits
- Describe the diferences between various platforms currently available
- Explain the DX licensing structure
Initial Configuration
- List post-initial commands that require CLI
- Perform initial DX configuration
System Management
- Describe DX user roles
- Create a new DX user
- Import and export configurations and snapshots
- Perform configuration synchronization
- Perform software upgrades
Basic Web Cluster Features
- Describe clusters
- Perform basic cluster configuration
- View cluster statistics
- Explain cluster load balancing methods
- Enable sticky load balancing
- Explain the benefit of TCP Multiplexing
Advanced Cluster Features
- Configure listen-side SSL for a cluster (e.g., importing certs)
- Configure server-side SSL for a cluster
- Describe the benefits of offloading SSL
- Configure Sticky Load Balancing
- Configure Advanced Health Checking
- Describe options for Client IP Transparency
Redirectors and Forwarders
- Configure Redirectors
- Describe a redirector
- Describe a forwarder
- Configure a forwarder
Server Load Bancing
- Describe DX SLB
- Explain load balancing algorithms
- Configure DX SLB
- Explain the types of NAT used in SLB
AppRules
- Explain the purpose of AppRules
- Describe AppRules anatomy and syntax
- Enable and test AppRules
3G Cache
- Describe 3G Cache.
- Explain how AppRules are used with 3G Cache.
- Configure 3G Cache.
Global Server Load Balancing (GSLB)
- Explain the benefits of GSLB
- Explain how the DX uses DNS for GSLB
ActiveN
- Describe ActiveN.
- List the configuration steps for ActiveN.
High-Availability
- Explain Unified Failover.
- Configure and test Failover.
Troubleshooting
- Demonstrate basic knowledge of DX troubleshooting commands (show system debug, show netstat 1, show system debug)
- Use advance troubleshooting tools (tsdump, tcpdump)