Unit 7 - digital environments

• What is the purpose of a file server?

  To store, manage, and transfer files
• How do file servers work?

  Stores and retrieves files
• File server features:

  Access control

  File organisation

  File sharing

  Mass management of files
• File server characteristics:

  High drive size

  Low individual drive speed

  High bandwith ethernet
• What is the purpose of an application server?

  To host and run applications
• How do application servers work?

  Hosts applications
• What are the features of application servers:

  Scalability

  Resource allocation

  Compatability

  Accessibility
• What are the characteristics of an application server:

  Low storage and latency

  High processing power, and memory

  HIgh core CPU
• What is the purpose of a database server?

  To store and manage data
• How do database servers work?

  Data is stored in server drives, and a specialised OS allows management of this data
• What are the characteristics of database servers?

  High memory size

  High bandwidth

  Good redundancy
• What are the features of a database servers:

  Easy data management

  Centralised data storage

  Secure data control
• What is the purpose of print servers?

  TO manage print jobs
• How do print servers work?

  Manages print jobs from other devices, often across numerous printers
• What are the features of a print server:

  Print job ordering

  Resource management

  Integration with stock

  Automated jobs through apis
• What are the characteristics of a print server:

  Medium capacity

  Formatted for pdf files

  Weak processing power
• What are the purpose of virtual servers?

  To host virtual machines
• How do virtual servers work?

  Simulates hardware and a separate copy of an OS
• What are the features of a virtual server:

  Remote work

  Data isolation

  VM snapshots
• What are necessary characteristics of a virtual servers?

  Better hardware than the simulated devices
• What is the purpose of mail servers?


  To handle email services
• How do mail servers work?

  Sends, receives, and stores email
• What are the features of mail servers?

  Large amount of control over incoming and outgoing mail

  Easy to store and retrieve attachments, especially private data
• What are the characteristics of mail server?

  Storage is formatted for compressed mail files
• What is the purpose of a web server?

  To host websites
• How do web servers work?

  Transfers website data such as html and css over HTTP(S)
• What are the features of web servers:

  Access restrictions

  SSL support
• What are the characteristics of web servers:

  High CPU speeds

  High bandwidth
• What is the purpose of DNS servers?

  To map domain names to IP addresses
• How do DNS servers work?

  Translates domain names into IP addresses, which allows web data to transfer to an end user
• What are the features of DNS servers, for a company?

  Reliable service provision

  Secure against attacks

  Company controls availability
• What are the characteristics of DNS servers?

  High memory speeds

  Good redundancy
• What is the purpose of hybrid servers?

  Provide an all in one solution for a companies centralised resource needs
• How do hybrid servers work?

  Many ways, primarily a high level OS that can handle a variety of roles
• File indexing is a feature of file servers that organizes files based on their content and metadata, allowing for faster and more efficient searching.
• File replication is a feature of file servers that creates duplicate copies of files for redundancy and fault tolerance.
• File backup is a feature of file servers that creates copies of files to protect against data loss.
• File synchronization is a feature of file servers that ensures that files are up to date across multiple devices.
• File versioning is a feature of file servers that allows users to access and restore previous versions of files.
• File encryption is a feature of file servers that protects sensitive data by encrypting it into ciphertext, to be be deciphered with a decryption key.