Networking: A Beginner’s Guide Fifth Edition- P39 ppt

... the database vendor’s technical support staff discovered that a portion of the database that wasn’t regularly used had become lost and wasn’t repairable. The problem was caused by a bad sector ... found a copy of the database that didn’t have the damage. They then reentered the data that had been added since the nondamaged copy was made. Because of the increasing time span between...

Ngày tải lên: 05/07/2014, 04:20

... In a smaller company that has only one network administrator, duties include the following: N Creating, maintaining, and removing user accounts N Ensuring that necessary backups are made on a ... within the company, such as manufacturing, sales and marketing, accounting, purchasing and materials, retail operations, and so forth. The range of managers that you interview will depend on ....

Ngày tải lên: 05/07/2014, 04:20

... example, when data goes into the networking software and components making up the OSI model, it starts at the application layer and includes an application header and application data (the actual ... provide specific application services to an application. An example is a server that runs a database that a distributed application uses. N E-mail servers, which provide e-mail storage a...

Ngày tải lên: 05/07/2014, 04:20

... Additionally, in many cases, a home network can take advantage of traditional networking hardware and software. This section provides an overview of the various home networking options. Standard ... these cards, it’s usually easy and inexpensive to purchase and install a standard NIC. The cost for a good Ethernet NIC is around $50 to $100. Also, there are good Ethernet interfaces th...

Ngày tải lên: 05/07/2014, 04:20

... plug-ins. SSL VPNs are typically offered as an appliance a rack-mountable piece of equipment that contains all of the hardware and software needed to run the VPN. 134 Networking: A Beginner’s Guide N ... hardware (typically) than a remote access connection uses. A WAN VPN connection takes advantage of the existing Internet connection for both LANs and might run virtually 24...

Ngày tải lên: 05/07/2014, 04:20

... and a spare PC to sit in the closet, “just in case.” After the earthquake, a couple of buildings were temporarily unavailable for occupancy until inspectors had a chance to examine the damage ... Recovery Have a Plan for Communications and How You Will Communicate Following the CTO’s announcement, some asked, “What about those who don’t have web access at home?” As IT staff, we ask...

Ngày tải lên: 05/07/2014, 04:20

... certain types of parts on hand so that they are readily available in case of failure? N Are other computers available that might work as a short-term replacement for a key server? What about ... failure, you should design a plan under which you can rebuild the disk array and restore data from your backups as rapidly as possible. Regarding your tape backup drive, you will likely want...

Ngày tải lên: 05/07/2014, 04:20

... In a few rare cases, companies might alternatively gravitate toward Linux- or UNIX-based desktop computers, but you’ll usually choose between PCs and Macintoshes. Advantages and disadvantages ... companies, Macs are still a good idea. Generally, Macs make sense in companies that have a strong artistic or graphic bent to their makeup, such as a web design firm, a graphic design h...

Ngày tải lên: 05/07/2014, 04:20

... storage and bandwidth requirements for each service, and any other impacts they might have. For instance, a fax-in service might itself require a small amount of storage space, but all the fax ... sending large e-mail attachments frequently? N Storage requirements Will any group of users need significantly more storage capacity than the overall average you already determined? For inst...

Ngày tải lên: 05/07/2014, 04:20

... might also forward the resumes to appropriate personnel automatically. N Close integration with Active Directory, which means that you can maintain user accounts, and their associated mailboxes, ... to be able to handle virtually any organization’s e-mail needs. This chapter introduces Exchange Server. You learn how to install it, perform basic configuration tasks, and access a mailbox...

Ngày tải lên: 05/07/2014, 04:20