800-150

The Cisco 800-150 exam, Implementing Cisco IOS XE, covers a broad range of topics related to configuring and troubleshooting Cisco IOS XE operating systems. The main points cluster around these key areas:

1. Fundamentals of IOS XE: You need a solid understanding of the IOS XE architecture, its components (including the control plane and data plane), and how it differs from previous IOS versions. This includes understanding boot processes and basic CLI navigation.

2. Network Management: This is a significant portion. Expect questions on:

• Configuration Management: Using various methods (CLI, configuration templates, etc.) to manage device configurations, including version control and rollback.
• Monitoring and Troubleshooting: Utilizing various tools and techniques to monitor network health, identify issues, and troubleshoot problems. This includes analyzing system logs, using debugging commands, and understanding error messages.
• Security Hardening: Implementing basic security best practices, such as password management, SSH access, and basic firewall configurations.

3. IP Services: A core competency involves configuring and troubleshooting key IP services:

• IP Addressing and Subnetting: Solid understanding is mandatory. Expect questions on various subnetting schemes and CIDR notation.
• Routing Protocols: While not in-depth, you'll need to understand the basics of routing protocols like RIP, EIGRP, and OSPF. Focus on configuration and basic troubleshooting. Generally, you will see basic configurations and their functionalities rather than intricate design intricacies.
• DHCP: Configuring DHCP servers and clients; understanding DHCP scopes, options, and troubleshooting.
• NAT: Understanding different NAT types (static, dynamic, PAT) and their configurations.

4. Access Control Lists (ACLs): Understanding how to configure and utilize ACLs for filtering network traffic based on various criteria (source/destination IP, port numbers, protocols).

5. Quality of Service (QoS): Basic understanding of QoS principles and how to implement simple QoS policies using class-based models.

6. Network Security Basics: This involves understanding concepts like:

• Authentication: Securing access to the device itself.
• Authorization: Controlling what users can do once they've logged in.
• Accounting: Tracking user activity.

Important Note: While the exam covers many topics, the emphasis is on implementation and troubleshooting . You should be able to configure the various services and features and effectively diagnose and resolve basic network problems. Memorization alone won't suffice; you need hands-on experience.

To effectively prepare, use official Cisco documentation, practice labs (using Cisco Packet Tracer or GNS3), and study guides specifically designed for the 800-150 exam. Focus on understanding the "why" behind the configurations, not just the "how."