ImageStream Certified Network Operator Certification Objectives
The ImageStream Certified Network Operation (ICNO) certification is designed for network operators that have a basic understanding of TCP/IP networking and limited knowledge of the ImageStream Industrial Series Routers, ImageStream Linux, and ImageStream's Inetics technology platform. The ICNO course of study is a four-day, two-part class that covers basic configuration, network design, troubleshooting, static routing and firewall/access control. The ICNO course culminates in a two-hour written exam that verifies candidates' basic understanding of Internet technology and related platform configuration, troubleshooting skills, and firewall/access control. ICNO exam topics are based on the content of the four-day ICNO instructor-led training course. This course and exam are prerequisites for advanced certifications.
Exam Information
- Exam code: ICNO-XXX (where XXX is the course start date)
- Format: Written exam
- Administration: Administered by ImageStream at official test locations
- Exam length: 120 minutes
- Exam type: 140 multiple-choice and fill-in-the-blank questions
- Passing grade: 75%
- Scores: Score and pass/fail status are available within 10 business days
- Prerequisite certifications: None
- Valid Certification Period: 3 years from date of exam
- Recertification Cost: $125 USD (required after 3 years, or for retest after exam failure)
Course and Exam Objectives
This list is intended to provide a general overview of the topics covered in the four-day course and the skill set required to successfully complete the ICNO certification exam. Topics listed are subject to change.
Operation and Troubleshooting
- Describe the function of the parts of the ImageStream router.
- Identify the difference between ImageStream's routing architecture and proprietary router designs.
- Describe and install the hardware required to be able to communicate via a network
- Establish communication between a terminal program and the router, and identify other tools used to access the router
- Describe the boot process on an ImageStream router.
- Define the components of ImageStream Linux - Inetics components, individual daemon process, flash module configuration, key commands, software locations.
- Describe the functions of CLI commands used to monitor interfaces.
- Identify options for manipulating "saved" configuration files - restore; backup; file locations.
Basic Networking
- Understand the purpose and structure of the 7-layer OSI model
- Classify devices and protocols and their layer in the OSI model
- Explain how encapsulation and de-encapsulation works for packet- and cell-based protocols
- Understand IP address notation and subnets
- Construct a point-to-point Ethernet LAN
- Understand the relationship between latency, packet loss and switched/unswitched networks
- Construct a topology and network addressing scheme
- Understand the difference between TCP and UDP
- Determine the type of transport protocol (TCP or UDP) for common applications
WAN Configuration
- Define the fundamental technologies involved in a WAN environment
- Match the types of WAN media to their appropriate characteristics
- Identify valid options for interface names and protocol families within ImageStream's Inetics platform.
- Manipulate ImageStream Linux image and primary configuration files
- Assign IP addresses to LAN and WAN interfaces
- Configure a basic point-to-pont WAN link on a router and save the resulting configuration file
WAN Testing and Monitoring
- Use the "stats" utility and other network testing utilities to analyze and report network problems
- Understand and use the Internet Control Message Protocol (ICMP), and ICMP-based tools on the ImageStream router
- Identify the specific network interfaces used to forward traffic in a network
- Identify the tools used to externally monitor router traffic
Protocol Independent Routing Properties
- Identify the packet flow through the router's packet forwarding engine.
- Describe the difference between static, direct, and dynamic routes.
- Identify the default routing tables and preference values.
- Describe the options available for load-balancing.
Firewall and Access Lists
- Understand iptables and how iptables fits into an overall quality of service architecture
- Identify packet flow through iptables in routed networks
- Identify packet flow through iptables in bridged networks
- Understand and apply the difference between INPUT, OUTPUT, and FORWARD rules
- Use iptables to create customized rulesets
- Use iptables to filter traffic
- Use iptables to enforce rules
- Use iptables to classify traffic and filter L7 peer-to-peer file sharing
- Use iptables to log activity
Network Address Translation and Troubleshooting Rulesets
- Understand the location and function of NAT chains in iptables
- Describe the difference between NAT and masquerade rules
- Use iptables to create DNAT rules in the PREROUTING chain
- Use iptables to create SNAT rules in the POSTROUTING chain
- Identify CLI commands used to monitor and troubleshoot filter operation.
See the Course Schedule or
contact ImageStream for more information on upcoming classes or on scheduling a certification class and examination.
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