Subject-matter expert
Keith Barker
Keith Barker builds CBT Nuggets training around real networking & network security work, so IT leaders can standardize team capability without relying on crowd-sourced course libraries.
Networking & Network Security
69 active courses tied to team training paths
Expert-built content
Named practitioners design the training around real IT operations and certification outcomes.
Team-ready outcomes
Courses are packaged for onboarding, upskilling, and certification readiness.
$749/seat Team plan
Managers get the trainer-led catalog plus labs, practice, and reporting.
Training coverage
Courses that carry Keith Barker's expertise into your team plan
Use these courses as proof of coverage for the roles and technologies your team needs to support.
Courses Keith Barker teaches
69 courses as the on-camera trainer
Cisco
802.1X Authentication and Cisco ISE
This course explains Cisco ISE, a next-gen identity and access control policy platform, and how it interfaces with the standard 802.1X authentication protocol. In this training, you will learn how to use Cisco's unique Identity Services Engine (ISE) to maintain compliance on your network while also extending your security posture and enhancing operations.
Cisco
Advanced Cisco Network Infrastructure Security
This Advanced Cisco Network Security: How to Configure Network Infrastructure Security training covers how to design a security plan for your network that protects the entire infrastructure. Network infrastructure security is a large collection of policies, protocols and practices that are designed to keep all elements of a network and its infrastructure safe from unauthorized access and modification.
Cisco
Advanced Cisco Security
This CCNP Security prep course prepares network security admins to provide advanced threat protection against cybersecurity threats on a Cisco network through management of software, hardware, and security techniques. Use this training as a resource when preparing for the CCNP Security exam or to help boost your skills in Cisco network security.
Cisco
CCNA
This Cisco CCNA v1.1 training prepares you for the 200-301 CCNA v1.1 exam — the one exam required to earn the Cisco Certified Network Associate certification. While the new CCNA v1.1 exam continues to cover topics like network fundamentals and IP connectivity, the updates are reflective of the increasing focus on cloud, automation, and AI in networking.
Cisco
CCNP Security
This advanced Cisco CCNP Security training covers the objectives in the 300-710 SNCF exam, which is one of six concentration exams you can take to earn the CCNP Security certification. This Cisco training can be used for 300-710 SNCF exam prep, onboarding new network administrators, individual or team training plans, or as a Cisco reference resource.
Cisco
CCNP Security
This intermediate Cisco CCNP Security training covers the objectives in the 350-701 SCOR exam, which is the core exam for the CCNP Security certification. This 350-701 SCOR exam prep will teach you a broad skill set, including network, cloud, and content security; endpoint protection and detection; secure network access, visibility, and enforcement. For anyone who manages their network — or the security of their network, this CCNP Security course is for you.
Cisco
CCT Routing and Switching
This foundational Cisco CCT Routing & Switching training covers the objectives in the 100-490 RSTECH exam. For any network technician looking for foundational Cisco exam prep, this CCT Routing & Switching course maps to the Cisco 100-490 RSTECH exam objectives.
Cisco
Cisco ACLs
With this Applying and Verifying Cisco Access Control Lists training, you'll gain the skills and experience needed to actually implement ACLs and confirm that they're securing your traffic. Access control lists can limit network traffic, restrict access of users and devices, and prevent traffic from leaving a given network — all through the magic of packet filtering.
Cisco
Cisco CCNP Service Provider
This intermediate Cisco CCNP Service Provider training prepares network engineers for the 350-501 SPCOR exam, the core requirement for the CCNP Service Provider certification. The training covers the full scope of service provider network engineering, including core architecture, networking, segment routing, QoS, and automation. Gain hands-on expertise with technologies such as Segment Routing for IPv6 (SRv6), Routed Optical Networks, App-Hosting on IOS XR and IOS XE, BGP PIC and Additional Paths, Segment Routing Flexible Algorithm, and Secure Zero-Touch Provisioning (ZTP). This Cisco training is designed to help you build and maintain scalable, secure, and resilient service provider networks.
Cisco
Cisco CyberOps
Prepare for the Cisco Certified CyberOps Associate (200‑201 CBROPS) exam with Cisco training designed to give you practical SOC skills — the way real analysts work. You’ll get hands-on experience with SIEM, NetFlow, tcpdump, malware analysis, access control models, and incident response workflows based on NIST.SP800‑61. Learn how to detect network, application, and endpoint threats, investigate attacks like DDoS or man‑in‑the‑middle, and apply defense‑in‑depth. After completing this CBROPS v1.2 training, you’ll confidently analyze logs, extract artifacts from PCAPs, classify risks and vulnerabilities, and use automation tools like SOAR. Ideal for entry‑level security analysts or engineers ready to earn their CyberOps certification and launch an SOC career.
Cisco
Cisco DNA Center
This intermediate-level Cisco DNA Center course covers implementing an SD-Access fabric, automating business intent, or getting full insight into your environment with Assurance. It will start from Day 0 with planning and best practices, basic setup of the DNA Center appliance, all the way to implementing a full SD-Access Overlay fabric.
Cisco
Cisco Endpoint Security Implementation
This intermediate Cisco training teaches how to implement Cisco Endpoint Security, including Cisco AMP for Endpoints, to protect your network from vulnerabilities caused by smartphones, laptops, and other devices. Learn to configure and manage Cisco's Advanced Malware Protection (AMP) to secure endpoints and prevent breaches. This Cisco course is perfect for onboarding network security admins or enhancing Cisco security skills.
Buyer proof
Expert-led paths help teams turn training into measurable readiness.
Vertikal6 made CBT Nuggets the centerpiece of their apprentice training program. Each new hire was assigned a structured certification path starting with CompTIA A+ and progressing through Network+ and Security+. The practice exams gave engineers a realistic preview of what they'd face on exam day, and the virtual labs let them practice in real environments without risk.
- 100% exam pass rate for staff using CBT Nuggets
- Structured apprentice-to-technician pipeline with clear milestones
- Reduced wasted exam voucher spending
- Faster time-to-productivity for new hires