Cisco Updated 350-401 Exam Questions and Answers by ariyah

Causes of Errdisable

This feature was first implemented in order to handle special collision situations in which the switch detected excessive or late collisions on a port. Excessive collisions occur when a frame is dropped because the switch encounters 16 collisions in a row. Late collisions occur after every device on the wire should have recognized that the wire was in use. Possible causes of these types of errors include:

• A cable that is out of specification (either too long, the wrong type, or defective)
• A bad network interface card (NIC) card (with physical problems or driver problems)
• A port duplex misconfiguration

A port duplex misconfiguration is a common cause of the errors because of failures to negotiate the speed and duplex properly between two directly connected devices (for example, a NIC that connects to a switch). Only half-duplex connections should ever have collisions in a LAN. Because of the carrier sense multiple access (CSMA) nature of Ethernet, collisions are normal for half duplex, as long as the collisions do not exceed a small percentage of traffic.

Orchestration

 Orchestration means arranging or coordinating multiple systems. It’s also used to mean “running the same tasks on a bunch of servers at once, but not necessarily all of them.”

 Configuration Management

Config Management is part of provisioning. Basically, that’s using a tool like Chef, Puppet or Ansible to configure our server. “Provisioning” often implies it’s the first time we do it. Config management usually happens repeatedly.

Configuration management (CM) is a systems engineering process for establishing and maintaining consistency of a product’s performance, functional, and physical attributes with its requirements, design, and operational information throughout its life Configuration management is all about bringing consistency in the infrastructure.

Configuration Orchestration vs Configuration Management

The first thing that should be clarified is the difference between “configuration orchestration” and “configuration management” tools, both of which are considered IaC tools and are included on this list.

Configuration orchestration tools, which include Terraform and AWS CloudFormation, are designed to automate the deployment of servers and other infrastructure. Configuration management tools like Chef, Puppet, and the others on this list help configure the software and systems on this infrastructure that has already been provisioned.