Data Archiving and Compression
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Questions and Answers

Lossy compression is appropriate only for specific ______ cases.

use

Compression algorithm that sacrifices ______ quality for smaller file size is called Lossy.

data

To ensure ______, test your archives to confirm their integrity.

data

In a ______ backup, all files are backed up in a single operation.

<p>full</p> Signup and view all the answers

The ______ backup strategy involves backing up only files changed since last full backup.

<p>differential</p> Signup and view all the answers

In a ______ backup, files changed since last backup of any type are backed up.

<p>incremental</p> Signup and view all the answers

______ is a type of backup that tolerates drive failure.

<p>RAID</p> Signup and view all the answers

A copy of data in a ______ location is essential for data safety.

<p>geographically separate</p> Signup and view all the answers

You should be in the habit of backing up ______ files on your laptop or PC.

<p>user created</p> Signup and view all the answers

OS and apps can be restored from their original ______ providers or a system Restore Point.

<p>software</p> Signup and view all the answers

Having a backup will allow you to recover from lost, broken or stolen ______.

<p>hardware</p> Signup and view all the answers

Performed by continuously running ______ software that constantly monitors for file changes.

<p>backup</p> Signup and view all the answers

[Blank] copies files to a drive in use by the system.

<p>Local</p> Signup and view all the answers

Back up files to the ______ (Google Drive, OneDrive, Dropbox, iCloud).

<p>cloud</p> Signup and view all the answers

Used for Full and ______ strategy.

<p>Incremental</p> Signup and view all the answers

It is the least effective ______ method (what if you forget to do it?).

<p>Manual Backup</p> Signup and view all the answers

Enterprise backup software uses ______ strategies such as Full, Differential, and Incremental.

<p>backup</p> Signup and view all the answers

LTO tape or ______ disc libraries are used as nearline tertiary storage.

<p>Optical</p> Signup and view all the answers

Data ______ and Single-instance optimize storage by eliminating duplicate copies of data.

<p>deduplication</p> Signup and view all the answers

The ______ speed is highly variable and depends on data transfer rates from backup device or location.

<p>Recovery</p> Signup and view all the answers

AWS Glacier, Google ______ and Sync cloud storage are examples of inexpensive upload storage.

<p>Nearline</p> Signup and view all the answers

The 3-2-1 Backup Checklist recommends ______ copies of data with one active file and two backups.

<p>three</p> Signup and view all the answers

Windows File History and macOS Time Machine are not exactly ______, but rather automatic copying of files.

<p>backup</p> Signup and view all the answers

An external drive is platform independent only when not ______ in.

<p>plugged</p> Signup and view all the answers

Data compression is particularly useful in ______ because it enables devices to transmit or store the same amount of data in fewer bits.

<p>communications</p> Signup and view all the answers

File Compression stores a file’s data in less ______ by minimizing redundancy

<p>space</p> Signup and view all the answers

The ______ backup strategy involves backing up all files to offsite storage services.

<p>one-way</p> Signup and view all the answers

Data compression combines ______ minimization techniques

<p>redundancy</p> Signup and view all the answers

The ______ file format is often used by the graphics industry for lossless compression.

<p>TIFF</p> Signup and view all the answers

The final word on backups is that ______ matters.

<p>RESTORE</p> Signup and view all the answers

An archive is a collection of folders and files stored in one file, e.g. ______.ZIP

<p>filename</p> Signup and view all the answers

ZIP is used for ______ exchange

<p>cross-platform</p> Signup and view all the answers

The effect of file compression on data transfer is that it reduces the ______ time.

<p>throughput</p> Signup and view all the answers

Writing / Sending data takes time because ______ is slow

<p>I/O</p> Signup and view all the answers

The UniSuper pension fund had a proper ______ backup with a different provider.

<p>3-2-1</p> Signup and view all the answers

VoIP compresses data in ______-time

<p>real</p> Signup and view all the answers

The ______ file format is often used by the sound engineering and music industry for lossless compression.

<p>FLAC</p> Signup and view all the answers

Streaming sends compressed data and the receiver ______ it

<p>decompresses</p> Signup and view all the answers

The ______ compression algorithm is often used by the video industry for lossy compression.

<p>MPG</p> Signup and view all the answers

Encryption is used for ______ in file compression

<p>security</p> Signup and view all the answers

Who wrote the first computer program in 1842?

<p>Ada Lovelace</p> Signup and view all the answers

What were the essential elements of programming languages present in Ada's 1842 algorithm?

<p>Variables, Control Structures, and Logic</p> Signup and view all the answers

What type of machines were used in the 1940s-50s for programming?

<p>Mechanical Computing Machines</p> Signup and view all the answers

What was the 1st Generation of programming languages?

<p>Machine Instructions</p> Signup and view all the answers

What type of programming was done in the 1950s-60s?

<p>Assembly Language Instructions</p> Signup and view all the answers

What was abstracted away from hardware implementation in the 2nd Generation of programming?

<p>1GL elements</p> Signup and view all the answers

What was the purpose of Ada's 1842 algorithm?

<p>To demonstrate the Analytical Engine</p> Signup and view all the answers

What was the significance of Ada's 1842 algorithm?

<p>It had the essential elements of programming languages</p> Signup and view all the answers

What is the primary purpose of Relational Database Management Systems (RDBMS)?

<p>To manage and retrieve data</p> Signup and view all the answers

What is the key feature of High-Level Programming Languages?

<p>They are platform-independent and use services of Low-Level code</p> Signup and view all the answers

What type of languages are Interpreted/Scripting Languages?

<p>Line-by-line executed, not compiled, and dynamically typed</p> Signup and view all the answers

What is the primary characteristic of Data-Oriented Languages like SQL?

<p>They are designed for management of data in relational databases</p> Signup and view all the answers

What type of languages are C and C++?

<p>Compiled Languages</p> Signup and view all the answers

What is the primary feature of Compiled Languages?

<p>Translators generate machine-specific instructions from source code</p> Signup and view all the answers

What is the purpose of SQL?

<p>To manage and retrieve data</p> Signup and view all the answers

What are Data-Oriented Languages like SQL designed for?

<p>Management of data in relational databases</p> Signup and view all the answers

Which year was Visual Basic introduced?

<p>1991</p> Signup and view all the answers

Which programming language introduced in the 1990s is known for being readable, open-sourced, scalable, and extensible?

<p>Python</p> Signup and view all the answers

This language is compiled to bytecode and can run on any platform with a compatible virtual machine.

<p>Java</p> Signup and view all the answers

Which programming language, introduced in 2012, is known for being statically typed and a scalable variant of JavaScript?

<p>TypeScript</p> Signup and view all the answers

Which one of these languages is object-based and known for command-line scripting across multiple platforms?

<p>Windows PowerShell</p> Signup and view all the answers

Which programming language associated with mobile development for Android was introduced post-2010?

<p>Java</p> Signup and view all the answers

SQL, used for data storage and retrieval in relational databases, was developed at which company?

<p>IBM</p> Signup and view all the answers

Which of these languages is known for being safe by design, suitable for parallel programming and introduced in the 2010s?

<p>Rust</p> Signup and view all the answers

Which one of these languages typically executes inside a host application or OS shell and is dynamically typed?

<p>JavaScript</p> Signup and view all the answers

What characteristic is typically associated with scripting languages at runtime?

<p>They are dynamically typed</p> Signup and view all the answers

Which of the following is an example of a hybrid programming language?

<p>C#</p> Signup and view all the answers

Which environment can execute SQL (4GL) commands?

<p>RDBMS</p> Signup and view all the answers

What is a common runtime environment requirement for interpreted languages?

<p>They need a runtime environment</p> Signup and view all the answers

Which type of data typing does Python typically use?

<p>Hinted</p> Signup and view all the answers

Java is associated with which type of programming languages?

<p>General-purpose</p> Signup and view all the answers

What best describes the nature of MS PowerShell Core?

<p>Interpreted</p> Signup and view all the answers

What is the main characteristic of a 3GL programming language like FORTRAN?

<p>It is a general-purpose language that continues to be up-to-date</p> Signup and view all the answers

What is the main advantage of C++ over C?

<p>It is a higher-level language that provides better support for object-oriented programming</p> Signup and view all the answers

What is the significance of the 1970s in the history of programming languages?

<p>It was the decade when structured programming became popular</p> Signup and view all the answers

What is the main difference between a compiled language like C++ and an interpreted language like Python?

<p>Compiled languages are faster, while interpreted languages are more flexible</p> Signup and view all the answers

What is the main feature of the C programming language?

<p>It is a systems programming language that is used for operating system development</p> Signup and view all the answers

What is the main advantage of using a high-level language like Python?

<p>It is a more flexible language that is easier to learn and use</p> Signup and view all the answers

What is the main difference between structured programming and object-oriented programming?

<p>Structured programming is more focused on procedures, while object-oriented programming is more focused on objects</p> Signup and view all the answers

What is the main feature of the FORTRAN language?

<p>It is a language that is used for high-performance computing and scientific simulations</p> Signup and view all the answers

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