3.0 Network+ Certification Cram Notes : Network Operations

Temperature:High or low temperatures, for example, can negatively impact the performance of electronic devices, so it's important to monitor temperature levels and take appropriate actions when necessary.

Humidity:Humidity can also impact the performance of electronic devices as it can cause corrosion or short-circuits, so monitoring the levels of humidity can help prevent such issues.

Electrical:Electrical factors, such as voltage fluctuations or power surges, can also impact the performance of electronic devices, so monitoring electrical conditions can help detect and prevent these issues.

Flooding:In the case of flooding, environmental sensors can detect water levels and trigger an alarm to prevent equipment damage and downtime.

By monitoring these environmental factors and sensors, network administrators can proactively identify and resolve issues that could potentially impact network availability, helping to ensure the overall health and performance of the network.

Explain the following in detail

Baselines: A baseline is a standard measure or set of data points that serves as a reference point or starting point for future measurements and comparisons. In network monitoring and management, a baseline is a set of normal, expected network performance metrics such as network traffic, bandwidth utilization, CPU usage, memory utilization, etc. Baseline information is used to establish a normal operating range for network devices, interfaces, and applications, and to detect any deviations from that normal range. This is important for identifying potential performance issues, capacity constraints, or other problems that may affect network availability and reliability.

NetFlow data: NetFlow is a feature in Cisco routers and switches that provides information about network traffic flow, including the source and destination of network traffic, the type of traffic, the amount of bandwidth consumed, and the duration of each flow. NetFlow data is used to gain insights into network behavior and performance, identify network usage patterns and trends, and troubleshoot network problems. NetFlow data can also be used to perform network capacity planning, to detect security threats, and to monitor compliance with network policies.

Uptime/downtime: Uptime and downtime are measures of the availability of a network, device, application, or service. Uptime refers to the amount of time a network, device, application, or service is available and functioning as expected. Downtime refers to the amount of time a network, device, application, or service is unavailable, not functioning, or experiencing an interruption in service. Uptime and downtime are important measures of network reliability and availability and are used to determine the overall performance of a network, device, application, or service. Network administrators use uptime and downtime metrics to identify areas for improvement and to ensure that network availability and reliability meet or exceed service level agreements (SLAs).