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Redundant Array of Inexpensive disks (RAID) RAID is a fault tolerant method of storing data, meaning that a failure can occur and the system will still function. The various RAID categories are: · 0 – Disk striping – Data is written across multiple drives in parallel. Different parts of the data is written at the […]
Items to do when considering network backups. · Set a backup schedule · Determine data to be backed up and its importance to determine a backup schedule. · Determine backup methods, media, and equipment to use. Backup methods include full backup, file copy, backup changed files without marking files as backed up (differential backup), or […]
There are three categories of applications with regard to networks: 1. Stand alone applications – Includes editors 2. Network versions of stand alone applications – May be licensed for multiple users. 3. Applications only for a network include databases, mail, group scheduling, groupware. Models for network applications 1. Client-server – Processing is split between the […]
Network operating systems (NOS) typically are used to run computers that act as servers. They provide the capabilities required for network operation. Network operating systems are also designed for client computers and provide functions so the distinction between network operating systems and stand alone operating systems is not always obvious. Network operating systems provide the […]
There are two general types of network services, which are connection less and connection oriented. Connection oriented service performs connection establishment, data transfer, and connection termination. Ping The “ping” program uses ICMP echo message requests and listens for ICMP echo message reply messages from its intended host. Using the -R option with ping enables the […]