Networking: A Beginner’s Guide Fifth Edition- P11 ppt

... 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 and interconnection ... important that a new installation of a cable plant be performed by a qualified contractor trained to install that type of cable. Cable may appear simple, but it is actually quite complicated, and its...

Networking: A Beginner’s Guide Fifth Edition- P5 ppt

... In a smaller company that has only one network administrator, duties include the following:N Creating, maintaining, and removing user accountsN 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 ... and expectations with regard to their network. What is important is that you learn the relevant questions to ask about networking for your company and arrive at the best possible answers to...

Networking: A Beginner’s Guide Fifth Edition- P16 pptx

... 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 that can ... is located, or in a garage, closet, attic, or basement. You will need an available power outlet for the hub in whatever location you select.N Network interface card Each computer needs a network...

Networking: A Beginner’s Guide Fifth Edition- P31 pptx

... 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 hours a day. A ... install. The fourth major type is the SSL VPN, a relatively new category. This is actually my overall favorite for remote access support. An SSL VPN takes advantage of the Secure Sockets Layer...

Networking: A Beginner’s Guide Fifth Edition- P36 ppt

... 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 ... RecoveryHave a Plan for Communications and How You Will CommunicateFollowing the CTO’s announcement, some asked, “What about those who don’t have web access at home?” As IT staff, we asked, “What ... that could occur during a disaster.Notes on the Seattle 2001 Earthquake and Its Disaster RecoveryBy Tony RyanSeattle has seen some very unusual and attention-grabbing events over the past...

Networking: A Beginner’s Guide Fifth Edition- P37 pptx

... 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 ... that explores how a network recovers from a disaster that either imperils its data or stops its functioning. A company’s external financial auditors often require annual disaster recovery plans,...

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 backups ... way, you can’t lose more than a half day’s worth of data.You can also choose rotation schemes that are simpler than GFS. For instance, you may use just two or three tapes and then rotate them...

Networking: A Beginner’s Guide Fifth Edition- P44 ppt

... 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 house, and ... forth.NOTE As you have probably already noticed, many people want to make a platform decision based on the platform they like the best. Many people happily call themselves “PC fanatics” or “Mac fanatics.”...

Networking: A Beginner’s Guide Fifth Edition- P47 ppt

... 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 instance, ... departmental applications can have wildly different impacts on the network. For example, an accounting system designed around shared database files needs a different network design than one using a...

Networking: A Beginner’s Guide Fifth Edition- P60 pptx

... 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 ... only e-mail messages are delivered to users inboxes, but also voicemail messages and faxesN Support for collaborative features such as calendaring, shared resource scheduling (such as conference...

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