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Juniper JN0-321 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Application Delivery & Optimization25%- SSL termination and security
- Caching and compression
- AppRules and content manipulation
Topic 2: Traffic Management & Load Balancing25%- NAT and connection management
- Server Load Balancing (SLB)
- Persistence and failover
Topic 3: DX Platform Fundamentals20%- Deployment models
- Architecture and components
- Initial setup and configuration
Topic 4: Administration & Troubleshooting15%- Software upgrade and backup
- CLI and WebUI management
- Monitoring and logging
Topic 5: High Availability & Clustering15%- Health monitoring
- VRRP and VMAC configuration
- Unified failover and Active-N

Juniper DX, Associate(JNCIA-DX) Sample Questions:

1. Your ERX Edge Router is using an inbound route map for an EBGP peer to only accept routes in the rngeof 192.168.32.0 through 192.168.95.255. The route map references an access list namedtest. What accurately accomplishes the goal of the route map?

A) accesslist test permit 192.168.32.0.0.0.63.255
B) accesslist test 192.168.32.0.0.0.63.255
C) accesslist test permit 192.168.32.0.0.0.64.255
D) accesslist test permit 192.168.32.0.255.255.63.0


2. Which DX services does Unified Failover support?

A) SLB, GSLB, Active, and 3G Cache
B) SLB, GSLB, Active, and DX Server
C) SLB, Active, and SSL
D) SLB, SSL, Active, and DX Server


3. There are three routers on a Gigabit Ethernet LAN: Router A, Router B, and Router C,Router A is the Designated intermediate System (DIS) at Level 1 for that LAN. Router A's DIS priority is 64. The LAN is a Level 1only link. Router D has just been powered up on that same LAN and its DIS priority is 80.Which statement is true?

A) Router D becomes the new DIS, does NOT generate a new pseudnode LSP for ThatLAN, and doesNOT purge the old psednode LSP generated by Router A.
B) Router A remains the DIS and generates a new pseudonode LSP for that LAN.
C) Router D becomes the new DIS, generates a new pseudonode LSP for that LAN, Andpurges the oldpseudnode LSP generated by Router A.
D) Router A remains the DIS and NO new pseudonode LSP is generated for that LAN.


4. Your company has two identical intranet servers which run both HTTP and HTTPS. You need to deploy the Juniper DX in front of these servers maintaining the existing mix of protocols. Which statement is true?

A) You will need to create a single Cluster which uses both protocols.
B) You will need to create two Clusters, one for each protocol.
C) You will need to create four Clusters, one for each server and each protocol.
D) You will need to create a Cluster and a Redirector.


5. In Juniper DX SLB groups, which type of health check is done by default to ensure target hosts are available?

A) The DX performs a Layer 7 health check with each target.
B) The DX performs an SNMP request to each target.
C) The DX establishes an SSL handshake with each target.
D) The DX establishes TCP connection with each target.


Solutions:

Question # 1
Answer: A
Question # 2
Answer: B
Question # 3
Answer: C
Question # 4
Answer: B
Question # 5
Answer: D

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