Digital Technology

Question 1

What is Big Data?

Answer 1

Big data is data that contains a large amount of information that is helpful to the viewer/reader/user.

Question 2

What is Data Innovation?

Answer 2

Data innovation is the use of new or non-traditional data sources and methods to gain a more naunced understanding of development challenges.

Question 3

What are the PROS and CONS of Big Data?

Answer 3

PROS: data collected is valuable, benefits for people’s necessities, quickly recognizes errors and real-time fraud detection.
CONS: tools not compatible, new approach required and possible failure.

Question 4

What are the PROS and CONS of Data Innovations?

Answer 4

PROS: new data sources are introduced and a better understanding of development changes is made
CONS: data is not reliable and data may be incorrect

Question 5

Define Cryptography

Answer 5

Cryptography is the art of protecting information by transforming it (encrypting it) into an inreadable form called cipher text

Question 6

Define Encrytpion

Answer 6

Encryption is the process of encoding messages so that they cannot be read

Question 7

Define Decrytion

Answer 7

Decryption is the process of decoding the transformed message so that it can be read

Question 8

Define the term hacking

Answer 8

Hacking occurs when someone gains unauthorized access to data in a computer or system. Some potential issues that arise from people or groups that can hack into big data include: personal information stolen, information hacked or changed and privacy breached

Question 9

What is Ceaser’s Cypher?

Answer 9

Ceaser’s cypher was used to protect messages he sent to his army officers. The process is used by making letters go back one spot in the alphabet. For example, B becomes A and Y would become X.

Question 10

What is Symmetric Encryption?

Answer 10

Symmetric Encryption is the process of a sender encrypting a message with one key, sends the data and then the receiver uses the same key to decrypt the message. (Simple Form: using one key to encrypt and decrypt data)

Question 11

What is Asymmetric encryption?

Answer 11

Asymmetric encryption is the process of using two keys to encrypt and decrypt data (public and private key).

Question 12

What is hashing?

Answer 12

Hashing is the process of generating a value or values from a string of text using a mathematical function.

Question 13

Define end-to-end encryption

Answer 13

End-to-end encryption means that only the sender and receiver of data is able to see it.

Question 14

What is the difference between a public and private key?

Answer 14

A public key is available to more than two people. Whereas, a private key is used when a sender sends data to someone specific who needs to use the private key to decode the message.

Question 15

What are the PROS and CONS of google trends?

Answer 15

PROS: choose best keywords, know latest trends and you can monitor your brand
CONS: increased risk of keyword stuffing and there is limited ranking data and insights

Question 16

What are the PROS and CONS of google ngrams?

Answer 16

PROS: detailed information, helpful data, frequent and current data
CONS: possible inaccuracy of data, possible incorrect data

Question 17

What are the PROS and CONS of google maps?

Answer 17

PROS: helps find parking spots, suggests better time travel, shows traffic rules, gives information on public transport and private transport such as Uber and Lyft
CONS: doesn’t reflect the time of the journey mentioned distance covered and doesn’t provide information about interruptions in the traffic, such as construction