Digital Solutions - Unit 4 Introduction

What are the key systems involved in a data exchange solution?

Tick any that apply.

• Producer system

• Consumer system

• Retailer system

• Primary system

True or false?

JSON stands for JavaScript Object Notation.

• True

• False

What does API stand for?

• Adaptive Programming Interface

• Active Program Interface

• Applied Program Interface

• Application Programming Interface

What is an API?

• A software innovation that enables applications to exchange data and functionality easily, securely, and in real time.

• A plain text file that contains instructions for running commands or scripts to run applications or processes, manage files and so on.

• An application programming interface.

Answer explanation

While an API is an application programming interface, the correct answer is more accurate.

The plain text file that runs applications or processes, and manages files is a batch file.

Tick all that apply:

In relation to synchronous versus asynchronous communications, the features of synchronous communication include:

• This mode of communication is fast.

• Users have to wait till the transmission is complete before getting a response.

• The start and stop bits are used in transmitting data that imposes extra overhead.

• Synchronous transmission needs precisely synchronized clocks for successful exchange.

The "CIA triad" refers to 3 main security risks that should be considered when exchanging data over the internet. CIA stands for:

• Consistency, Integrity, Availability.

• Confidentiality, Integrity, Availability.

• Consistency, Integrity, Authentication

• Consistency, Interoperability, Authentication

The main techniques developers use to protect against security risks (identified via the CIA triad) are:

• Encryption, Authentication, Checksums, Hashing

• Encryption, Availability, Confidentiality, Hashing

• Enablement, Authentication, Confidentiality,

  Hot-spotting

Tick all that are correct.

Encryption

• transforms data into an unreadable format.

• transforms data into ciphertext.

• verifies that someone is who they say they are.

• may use many different encryption algorithms.

Answer explanation

Verifying someone is who they say they are is achieved through authentication.

True or false?

Symmetric and asymmetric encryption is a thing.

• True

• False

Tick all that apply.

Authentication can be achieved through use of

• Digital signatures

• Tokens

• One or two factor processes

• Blowfish and Twofish algorithms

Answer explanation

Blowfish and Twofish are open source encryption algorithms.