Questions

VPN transmission is always encrypted / provides a secure connection; Establishes the tunnel between sender/receiver; Sender/receiver is authenticated before sending/receiving; VPN users have access to all services available;

Protocols are sets of rules for transmitting data correctly;

refers to making the system easy to use and matching it closer to user needs/requirments

Tunnelling protocols; Allows the data to be encapsulated/hidden whilst travelling across the internet; The use of gateways; Allows the salesperson to connect with the company’s server;

Prototype is used to ensure all essential functions/operations of the system are present/meets the needs of the users; Prototype is used to speed up development process; Positive user’s feedback helps in refining the acceptable prototype in order to develop the complete system/product; Or else a further prototype should be created in order to develop the satisfactory system/product;

Data loss/data corruption; When moving data, from one storage device to another (via network/ cables or transferred by people), data could be corrupted/lost and not useful anymore; Incompatibility of data formats; Necessary to translate from one format to another, to be able to use the data in the new system which causes delays/performance issues in business/office operation;

extranet allows extneral users specified access to an orafgnIation network ethernet is wired connection wireless is wired internet Ethernet is a type of wired networking technology that uses cables to transmit data between devices.

Encryption; Any Data intercepted will not be readable; Vpns use Symmetric encryption: This involves the use of a single secret key to encrypt and decrypt data. Both the sender and the receiver use the same key to encrypt and decrypt the data. and Asymmetric encryption: This involves the use of two keys, a public key and a private key, to encrypt and decrypt data. The sender uses the recipient’s public key to encrypt the data, and the recipient uses their private key to decrypt it. Tunnelling software; Security properties of each tunnel should be agreed by the administrators of the two endpoints of the tunnel; Tunneling software ensures that all data transmitted between the user’s device and the VPN server is secure and private, protecting the user’s sensitive information Multiple exit nodes; Makes it hard to distinguish where the data was generated thus more secure (less prone to phishing);

IPsec with encryption;

Provides a user interface Does memory management Allows multi-tasking Providessecurity

Incompatible file formats; Which could lead to incomplete or incorrect data transfer; data loss

controls the flow of data in the network; inspects address of data packets; directs to the appropriate network path/ selects a path between networks (by inspecting address of data packets); securely transmits data packets (across that path toward the intended destination);

Wireless) router; A central hub for all the computers to connect to; Enables wireless network packet forwarding and routing; Wireless repeaters; To expand the reach of the network;

Encryption protocol IPSec VPN Server

Data encryption refers to calculations/algorithms that transform plain text into a form that is non-readable to unauthorized parties

A wide area network is a telecommunications network that extends over a large geographic area.