LAB4

What is a preservation strategy?

A preservation strategy is a plan that outlines methods to maintain the accessibility and integrity of digital content over time.

What is migration in the context of digital preservation?

Migration is the process of transferring digital files from one format or storage medium to another to ensure continued access.

What is media migration?

Media migration refers to the transfer of data from one physical storage medium to another, such as moving files from old hardware to new hardware.

What is a migration format?

A migration format is a digital file format that is chosen for transferring data during the migration process to ensure compatibility and longevity.

What does migration conversion involve?

Migration conversion involves changing the file format of digital assets to one that is more suitable for preservation and access.

What is file naming in digital preservation?

File naming in digital preservation refers to the system of naming files in a way that supports easy identification and retrieval over time.

What types of characters should we use in file names?

File names should use alphanumeric characters, avoid spaces, and special characters, and use underscores or hyphens for readability.

Why is consistent file naming important?

Consistent file naming is important for ensuring organization, preventing errors, and facilitating easier searches and retrieval of files.

What is the role of metadata in preservation strategy?

Metadata provides essential information about the digital content including context, provenance, and technical details crucial for preservation.

How can version control aid a preservation strategy?

Version control helps track changes to digital files, allowing for record keeping and retrieval of previous versions as needed.

What is a checksum?

A checksum is a value used to verify the integrity of data by detecting errors in data transmission or storage.

What does SHA stand for?

SHA stands for Secure Hash Algorithm, a family of cryptographic hash functions designed by the National Security Agency (NSA).

What is MD5?

MD5 (Message-Digest Algorithm 5) is a widely used cryptographic hash function that produces a 128-bit hash value.

What is the purpose of a checksum?

The purpose of a checksum is to ensure data integrity by allowing users to verify that the data has not been altered.

How does SHA differ from MD5?

SHA is more secure than MD5 as it uses longer hash values and is less susceptible to collision attacks.

What is the output length of SHA-256?

SHA-256 produces a hash output that is 256 bits long (32 bytes).

How are checksums verified?

Checksums are verified by recalculating the checksum of data and comparing it to the original checksum value to check for discrepancies.

What is bit-level preservation?

Bit-level preservation is the practice of maintaining the original digital files in their exact binary format to ensure authenticity and integrity.

What is logical preservation?

Logical preservation involves maintaining the accessibility and usability of digital content by preserving its structure, relationships, and metadata.

Why is bit-level preservation important?

Bit-level preservation is important because it prevents data loss and ensures that the original files remain unchanged over time, which is critical for long-term digital preservation.

What is Omeka?

free, open-source web-publishing platform for the digital humanities, allowing users to create online collections and exhibits.

What is CollectiveAccess?

an open-source software platform designed for managing and sharing cultural heritage collections.

What is CollectionSpace?

an open-source collections management system that helps organizations manage their collections and share them with the public.

What are open exhibits?

refer to online exhibitions that are accessible to the public, allowing users to explore digital collections in an engaging format.

What is cloud computing?

Cloud computing refers to the use of hosted services including data storage, servers, databases, networking, and software over the internet.

Where is data stored in cloud computing?

Data is stored on physical servers that are maintained by cloud service providers.

What is Software-as-a-Service (SaaS)?

SaaS involves software application licensing to customers, typically provided through a pay-as-you-go or on-demand model.

Give an example of SaaS.

An example of SaaS is Microsoft Office 365.

What is Infrastructure-as-a-Service (IaaS)?

IaaS delivers operating systems, servers, and storage through IP-based connectivity, eliminating the need to purchase software or servers.

Name two examples of IaaS.

Examples of IaaS include IBM Cloud and Microsoft Azure.

What is Platform-as-a-Service (PaaS)?

PaaS providers host development tools on their infrastructures, which users access via the internet for software development.

What is a public cloud?

Public cloud storage involves data stored in service provider's data centers that is shared by multiple companies.

What is private cloud storage?

Private cloud storage is when an organization uses its own servers and data centers to store data within its network.

What is a hybrid cloud?

A hybrid cloud is a combination of private and public cloud storage, allowing organizations to choose the data storage location for different types of data.