_______________________ is the process of operating, monitoring, and controlling the network to ensure it works as intended and provides value to its users.
Network management
____________________ are standard devices, such as switches and routers, that have small onboard computers to monitor the traffic that flows through the device as well as the status of the device and other devices connected to it.
Managed devices
What are the three additional capabilities of managed devices?
1) recording data about the traffic they process
2) monitoring the status of other devices around them
3) taking action when certain events occur
___________________ (sometimes called point management software) is designed to provide information about the specific devices on a network. It enables the network manager to monitor important devices such as servers, routers, and switches to report configuration information, traffic volumes, and error conditions for each device.
Device management software
__________________ (sometimes called enterprise management software or a network management framework) provides the same configuration, traffic, and error information as device management systems but can analyze the device information to diagnose patterns, not just display individual device problems.
System management software
_____________________ track delays and problems with application layer packets and inform the network manager if problems occur.
Application management software
The most commonly used network management protocol is:
Simple Network Management Protocol (SNMP)
Describe Simple Network Management Protocol (SNMP):
Each SNMP device (e.g., router, switch, server) has an agent that collects information about itself and the messages it processes and stores that information in a database called the management information base (MIB). The network manager’s management station that runs the network management software has access to the MIB. Using this software, the network manager can send control messages to individual devices or groups of devices asking them to report the information stored in their MIB.
RMON stands for:
Remote Monitoring
A special device called a _______________ or _______________ acts as a traffic manager at the front of the server farm (Figure 12-3). All requests are directed to the load balancer at its IP address. When a request hits the load balancer, it forwards it to one specific server using the server’s IP address.
load balancer or virtual server
With ____________________ (sometimes called application shaping or traffic shaping), the network manager uses special software to set priority policies for network traffic that take effect when the network becomes busy.
policy-based management
Policy-based managemetn uses a special device called a(n):
traffic shaper
_________________ devices, sometimes called bandwidth limiter or bandwidth shapers, monitor traffic and can slow down traffic from users who consume a lot of network capacity.
Capacity management
The basic idea behind ________________ is to store other people’s Web data closer to your users.
content caching
Rather than storing other people’s Web files closer to their own internal users, a _____________________ stores Web files for its clients closer to their potential users.
content delivery provider
_____________________ means managing the network’s hardware and software configuration, documenting it, and ensuring it is updated as the configuration changes.
Configuration management
Some common configuration activities are:
1) adding and deleting user accounts
2) updating the software on the client computers attached to the network
____________________ enables network managers to install software on client computers over the network without physically touching each client computer.
Desktop management
Desktop management greatly reduces the cost of configuration management over the long term because it:
eliminates the need to update each and every client computer manually.
Desktop management increases cost in the short term because it:
costs money (typically $25 per client computer) and requires network staff to install it manually on each client computer.
The most basic information about network hardware is a set of network configuration diagrams that:
document the number, type, and placement of network circuits (whether organization owned or leased from a common carrier), network servers, network devices (e.g., hubs, routers), and client computers.
Documentation for individual network components should include:
The type of device, serial number, vendor, date of purchase, warranty information, repair history, telephone number for repairs, and any additional information or comments the network manager wishes to add.
The third type of documentation is ____________________, which should be automatically provided by the network operating system or additional vendor or third-party software agreements.
the user and application profiles
_____________________ means ensuring the network is operating as efficiently as possible, whereas __________________ means preventing, detecting, and correcting faults in the network circuits, hardware, and software (e.g., a broken device or improperly installed software).
Performance management, fault management
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Chapter 1 - Intro to Data Communications20
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Chapter 2 - Application Layer20
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Chapter 3 - Physical Layer31
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Chapter 7 - Wired and Wireless LANs29
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Chapter 8 - Backbone Networks16
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Chapter 9 - Wide Area Networks49
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Chapter 10 - The Internet41
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Chapter 11 - Network Security57
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Chapter 12 - Network Management41
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Practice Quiz 1 Questions31
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Practice Quiz 2 Questions40
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Practice Quiz 3 Questions35
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Practice Quiz 4 Questions35
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Practice Quiz 5 Questions40
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Practice Quiz 6 Questions34
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Chapters 1-6 TYU Key Points33
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Midterm Essay Topics9
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Chapters 7-12 Practice Questions205
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Final Exam Essay Topics12
