Information Security in Business: Telecommunications, Network, and Internet Security

A collection of vocabulary flashcards covering the key concepts, definitions, and terms related to information security, VPN, IPSec, and cloud computing.

VPN

A network technology that allows the creation of private 'tunnels' over the public Internet.

IPSec

A collection of protocols designed to provide security for packets at the network layer, performing encryption and authentication.

Transport mode

A mode of IPSec where protection is applied to upper-layer protocols but does not protect the IP header.

Tunnel mode

A mode of IPSec where the entire IP packet is wrapped inside a new IP packet with a new IP header for transmission.

Authentication Header (AH)

A part of IPSec that adds an integrity check to the packet, ensuring authenticity through a hash function and key.

Encapsulating Security Protocol (ESP)

A protocol in IPSec that encrypts data between an ESP header and trailer, used for confidentiality.

Security Association (SA)

A secure connection between two endpoints that applies a security policy and keys for data protection.

Internet Security Association and Key Management Protocol (ISAKMP)

A protocol that negotiates security associations and employs key exchange methods for secure connections.

Cloud Computing

A model for delivering computing services over the Internet, available as Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS).

On-demand self-service

A characteristic of cloud computing allowing consumers to provision resources automatically without human intervention.

Broad network access

Access to computing resources via standard mechanisms through various devices such as mobile phones and laptops.

Resource pooling

A cloud computing characteristic where resources are pooled to serve multiple consumers using a multi-tenant model.

Rapid elasticity

The ability of cloud services to be elastically provisioned and scaled quickly to meet demand.

Measured service

Resource usage in cloud computing is monitored and controlled, providing transparency for both provider and consumer.

Private Cloud

A cloud infrastructure operated solely for a single organization, either hosted internally or externally.

Public Cloud

Cloud services rendered over a network open for public use.

Community Cloud

A shared cloud infrastructure used by a specific group of organizations with common concerns.

Hybrid Cloud

A combination of public and private clouds, allowing data and applications to be shared between them.