Network Management (3.1 & 3.2) Flashcards
Network Management
o The process of administering and managing computer networks
Physical Network Diagram
▪ Shows the actual physical arrangement of the components that make up
the network
Logical Network Diagram
▪ Illustrates the flow of data across a network and shows how devices
communicate with each other
Wiring Diagram
▪ Labels which cables are connected to which ports
Radio Frequency (Wireless) Site Survey
▪ Planning and designing a wireless network to deliver the required
wireless solution
Wired Site Survey
▪ Determines if a site has the right amount of power, space, and cooling to
support a new upgrade or installation
Audit and Assessment Report
▪ Delivered after a formal assessment has been conducted ● Audit and Assessment Report o Executive summary o Scope and objectives o Assumptions and limitations o Methods and tools o Environment and system diagram o Security requirements o Findings and recommendations o Audit results
Baseline Configurations
▪ Set of specifications for an information system, or a configuration item
within a system, that has been formally reviewed and agreed on
▪ Changes will be properly tested and approved to be part of the new
baseline
Network Performance Monitoring
Monitors the performance from the end user’s workstation to the final
destination they are trying to reach
Latency
o Time that it takes for data to reach its destination across a
network
o High latency slows down overall network performance
Bandwidth
o Maximum rate of data transfer across a given network
Throughput
o Actual measure of how much data is successfully
transferred from the source to a destination
Jitter
o When a time delay in the sending of data packets over a
network connection occurs
▪ Ensure that your network is using QoS properly
Sensors
o Monitors a device’s temperature, CPU usage, and memory, which could indicate if it is operating properly or is about to fail o Minor Temperature Threshold ▪ Used to set off an alarm when a rise in temperature is detected but hasn’t reached dangerous levels yet o Major Temperature Threshold ▪ Used to set off an alarm when temperature reaches dangerous conditions ● 5-40% CPU utilization o Misconfigured network o Network under attack ▪ Minor ▪ Severe ▪ Critical ● 40% o Normal conditions ● 60-70% o Busier times ● Layer 3 80% o Peak times
Full Packet Capture is used to
o capture the entire packet, including the header
and the payload for all traffic entering and leaving a network