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revision paper 3

Total questions: 115

Worksheet time: 57mins

Name
Class
Date
1.

Big data is the massive amount of rapidly moving and freely ..................

a)

Available data

b)

Unavailable data

c)

Structured Data

d)

Unstructured Data

2.

What is NOT a characteristic of big data?

a)

Volume

b)

Variety

c)

Vision

d)

Velocity

3.

What is the true definition of big data

a)

huge amount of space

b)

large, diverse sets of information

c)

unlimited speed data internet connection

d)

small, undiverse sets of information

4.

Variety is a characteristic of big data. Which type of formats does Variety comes from?

a)

Structured

b)

Unstructured

c)

Semi-structured

d)

All of the above

5.

What does Velocity refers to?

a)

processing speed of a data

b)

speed of an internet

c)

the volume to the city

6.

Variety comes from structured or unstructured format. What is the difference between them?

a)

Handwritten / Computer-typed

b)

Numerical format / Natural Language

c)

Clean / Dirty

d)

Subjective / Objective

7.

Which of the following would NOT use big data analysis?

a)

Healthcare companies

b)

Public agencies

c)

Retail companies

d)

High school students doing homework

8.

How does the app above counts as a big data?

a)

It stores their user healthcare data

b)

It helps people find a date with their data

c)

It stores videos that is uploaded by their user

d)

It helps stores people's fat

9.

Volume is one of the characteristics of big data. What does Volume refers to?

a)

The amount of water in a glass bottle

b)

The amount of money

c)

The amount of love given

d)

The amount of Youtube videos that existed

e)

The amount of data

10.

What is the advantages on using big data in education in real life?

a)

A: Cost reduction

b)

B: Higher risk

c)

C: Effective learning

d)

D: A and B only

e)

E: A and C only

11.

Big Data is significant because of all of the following except it___________________.

a)

helps us in identifying trends in data

b)

allows us to determine how much data a database can store

c)

can be used to make connections in data

d)

helps us solve questions we might have

12.

What are the four V's that best define Big Data?

a)

Vacant - Victini - Volume-Validity

b)

Volume - Velocity - Variety- Veracity

c)

Validity - Velocity - Veracity- Volume

d)

Varsity - Velocity - Volume- Validity

13.

Spreadsheets and databases are examples of software tools that allow us to process Big Data.

a)

True

b)

False

14.

Height, age, speed, length are all examples of this type of data:

a)

Exploratory

b)

Qualitative

c)

Quantitative

d)

Subjective

15.

What does SaaS mean?

a)

Software as a Service

b)

Software as a Solution

c)

Software as a System

d)

Software as a Secret

16.

What would Amazon/Lazada/Shopee use Big Data for?

a)

To store customer details

b)

To analyse buying trends and recommend future purchases

c)

To store payment details

d)

To predict future company earnings

17.

Biologists often attach tracking collars to wild animals. For each animal, the following geolocation data is collected at frequent intervals.

  1. time
  2. date
  3. location of the animal


Which of the following questions about a particular animal could NOT be answered using only the data collected from the tracking collars?

a)

Approximately how many miles did the animal travel in one week?

b)

Do the movement patterns of the animal vary according to the weather?

c)

In what geographic locations does the animal typically travel?

d)

Does the animal travel in groups with other tracked animals?

18.

Big Data is significant because of all of the following except it___________________.

a)

helps us in identifying trends in data

b)

allows us to determine how much data a database can store

c)

can be used to make connections in data

d)

helps us solve questions we might have

19.

What is one of the main characteristics of Big Data processing

a)

Centralized data processing

b)

Centralized storage of data in a Data Warehouse

c)

Distributed collection and computing of data

d)

Collection of information through highly optimized computer systems

20.

What do companies collect that can identify you on the internet?

a)

consumer

b)

cookies

c)

privacy policy

d)

personal information

21.

What is the tiny piece of data that allows google to remember our password?

a)

identity theft

b)

cookie

c)

personal information

d)

privacy policy

22.
Is the Entity Relationship Model used to make a Conceptual Database Model?
a)
Yes
b)
No
23.
What is E-R model used for?
a)
To extract content  from the database
b)
To design and visualize database
c)
To create a graphical user interface
24.
What should a primary key contain?
a)
A lot of different values
b)
A null value
c)
An unique value
25.
What is a relational database?
a)
A relational database organizes data into tables, and links them together, based on key-fields. These relationships enable you to retrieve and combine data from one or more tables with a single query
b)
A relational database arranges data into a tree structure, which is similar to folders and files on a computer. 
26.
How do you communicate with your database?
a)
By using HTML
b)
By using JavaScript
c)
By using Structured Query Language (SQL)
d)
By using PHP
27.
What do we do in the database requirement stage?
a)
Analyze and try to get a clear understanding of the end user requirements specifying which data the future database system will hold
b)
Try to implement the physical database 
c)
Try to develop the Front End
28.
Which of these is the most secure way of data transfer?
a)
HTTP
b)
HTTPS
29.

What does this padlock sign mean in the address bar of your browser?

a)

The site is secure and data is transmitted using SSL

b)

There is a padlock available for purchase

c)

The website does not include "safety locks"

d)

The page is locked down for some odd reason

30.
What type of key is not shared and computers cannot decrypt a message without it?
a)
Free key
b)
Private key
c)
Public key
d)
Personal key
31.
If the same key is used to encrypt and decrypt a message, this is known as? 
a)
Symmetric encryption
b)
Encryption doesn't exist!
c)
Asymmetric encryption
d)
Same-key encryption
32.
What type of key can be freely shared with anyone so that they can encrypt a message?
a)
Personal key
b)
Private key
c)
Free key
d)
Public key
33.
All Public Keys have a matching Private Key
a)
True
b)
False
34.

What does SSL stand for?

a)

Secure Socket Layer

b)

Secret Secure Layer

35.
Which of these is not required for Public Key encryption?
a)
Public Key
b)
Private Key
c)
Encryption Algorithm
d)
Specific Key
36.
Encryption is a way of 
a)
Securing Information on a network
b)
Securing Viruses
c)
Deleting applications
d)
Hacking Passwords
37.
An encryption key is used to help decrypt messages
a)
True
b)
False
38.
If you were to use a caeser cipher with a key of 3 shifts to the left, how would you encrypt the word: Cipher?
a)
ZAMEBO
b)
ZOMEBO
c)
ZFMEBO
d)
ZFMEBA
39.

Taking a secret message and reproducing the original plain text is known as?

a)

Caesar Cipher

b)

Encryption

c)

Cipher Text

d)

Decryption

40.

Asymmetric encryption uses only 1 key.

a)

True

b)

False

c)

Maybe

d)

God Knows

41.
hello has been encrypted with Caesar cipher to khoor. The key used was:
a)
abc
b)
3
c)
2
d)
alphabet mapping table
42.

The process of converting plaintext to ciphertext.

a)

cryptography

b)

cyphertext

c)

decryption

d)

encryption

43.

A string of text that has been converted to a secure form using encryption.

a)

encryption

b)

decryption

c)

ciphertext

d)

plaintext

44.

The process of converting a ciphertext into plaintext.

a)

encryption

b)

decryption

c)

plaintext

d)

cryptography

45.
What are the stages of the Project Life Cycle?
a)
Initiation, testing, doing & Evaluating
b)
Initiation, Planning , Execution, Evaluation
c)
Analysis, Planning, Execution, Evaluation
d)
milestInitiation, doing & Evaluating
46.
What is the S in SMART
a)
Supported
b)
Simple
c)
Specific
d)
Single
47.
What could be measurable in the M part of the project
a)
Outcome
b)
temperature
c)
water
d)
project
48.
Which SMART element is this refering to "Within the availability of resources, knowledge and time"
a)
Achieveable
b)
Realistic
c)
Time
d)
Measureable
49.
which planning tool is this - a timeline that is used as a project management tool
a)
Spry Chart
b)
Gantt Chart
c)
Bar Graph
d)
PERT Tool
50.
What is critical path method (CPM)
a)
a step-by-step project management technique for process planning that defines critical and non-critical tasks
b)
a graphical display of project activities that helps the users understand the relationships among the activities.
c)
a project management tool to illustrate how the project will run.
d)
A graphical colourful displayed graph
51.
What is PERT
a)
PERT (Project Evaluation and Review Technique)
b)
PERT (Programme Evaluation and Review Technique)
c)
PERT (Programme Evaluation and replace Technique)
d)
PERT (Programme Evaluation and replace Topographical)
52.
a diagram of the sequence of movements is what type of planning tool
a)
Flow Chart
b)
critical path method (CPM
c)
PERT
d)
mind map
53.
What am I? I am the date a task / activity / project must be finished by.
a)
Deadlines
b)
Resources
c)
Durations
d)
Timescales
54.
What am I? I am the things you need to be able to complete a task or activity.
a)
Deadlines
b)
Resources
c)
Durations
d)
Timescales
55.

How many stages are in the project lifecycle?

a)

1

b)

2

c)

3

d)

4

56.

What is the first stage of the project lifecycle?

a)

Planning

b)

Execution

c)

Initiation

d)

Evaluation

57.

Briefly what happens in the initiation phase?

a)

Knowing what you want to achieve and how to achieve it

b)

Finding out what the project is about

c)

Physically completing the product/project/task

d)

Reviewing the finalised project

58.

I will save alot of money by my 16th birthday

a)

NOT a SMART goal

b)

SMART goal

59.

I will score 15 soccer goals this season

a)

SMART goal

b)

NOT a SMART goal

60.
NLP is concerned with the interactions between computers and human (natural) languages.
a)
True
b)
False
61.
The major tasks of NLP includes
a)
Automatic Summarization
b)
Semantic Analysis
c)
Machine Translation
d)
All of the above
62.
Google Translate is one of the ________________ application.
a)
Machine translation
b)
Information Retrieval
c)
Information Extraction
d)
Summarisation
63.

What is the main purpose of Natural Language Processing?

a)

Helping the machine to understand human language

b)

Let machine understand the human mind

c)

Guide human to process the language naturally

d)

Allow human to interpret machine language easily

64.

Normalisation is:

a)

Removing all necessary data from a database

b)

Organising a database to remove repeated entries and increase the accuracy of the data

c)

Putting fields from different tables into one big database

65.

Which of the following statements fully describes data in 2NF:

a)

When any repeating fields have been removed and the table is given a primary key

b)

When all repeating entries of data are removed and the fields in each table are directly related to the primary key and no fields are present that are not related to each other

c)

When all the fields in each table are directly related to the primary key

66.

An advantage of normalisation is:

a)

The storage space needed for a normalised database is likely to be smaller

b)

The process of normalising a database is very easy and doesn’t require any skill

c)

It is possible to see previous details that have been changed, such as a customer’s address, as we can look back at an older entry

67.

What is an atomic field?

a)

A field that contains multiple items of data

b)

A field that is repeated

c)

A field that contains only one item of data

68.

What is a foreign key?

a)

A unique identifier in a database

b)

A primary key of one table that appears in another table

c)

A field that should not be in a table and needs removing

69.

A relation is in 1NF if it doesn't contain any ____________?

a)

Determinants

b)

Repeating groups

c)

Null values in primary key fields

d)

Functional dependencies

70.

When you normalize a relation by breaking it into two smaller relations, what must you do to maintain data integrity?

a)

Remove any functional dependencies from both relations

b)

Assign both relations the same primary key field(s)

c)

Create a primary key(s) for the new relation

71.

Tables in ____ will perform suitably in business transactional databases.

a)

0NF

b)

1NF

c)

2NF

d)

3NF

72.

When is a table is said to be 3NF

a)

Normalization improves performance by reducing redundancy.

b)

If and only if it is in 2NF and every non key attribute is Non-transitively dependent on the primary key

c)

It involves introduction of redundancy in data

d)

None of the above

73.

1.Which of the following is TRUE about normalisation?

a)

It is the process of dividing larger tables into smaller interlinked tables.

b)

Increases data redundancy.

c)

It is the process of dividing larger tables into smaller independent tables.

d)

It is the process of removing duplicate entries in a table.

74.

What type of entity relationships always require a link table?

a)

One-to-one

b)

One-to-many

c)

Many-to-many

75.

Which of the following is the main motive of normalisation?

a)

Join many smaller tables

b)

Reduce data redundancy while merging smaller tables

c)

Creating a larger table with all entities

d)

None of the above

76.

What is Agile ?

a)

Airbus Great Initiative to Leverage Enhancements

b)

Agile is a sprint approach method

c)

Agile is new process and methodology

d)

Agile is set of Values and Principles

77.

What is the top benefit of adopting Agile ?

a)

Cost reduction

b)

Team Morale

c)

Ability to change priorities

d)

Breaking Silos

78.

Agile methods are

a)

Phase gate approaches

b)

Iterative and incremental approaches

c)

Incremental development approaches

d)

Iterative development approaches

79.

I want to develop a software that requires a lot of documentation. What approach should I use?

a)

Waterfall method

b)

SCRUM

c)

Agile

d)

All of the above

80.

The waterfall method is......

a)

pouring water on your keyboard and hoping it makes software

b)

a linear approach to software development

c)

a way to develop software quickly

d)

unorganized

81.

Select words which can be used to describe the waterfall method. [2 Words Max]

a)

Rigid

b)

Dynamic

c)

Thorough

d)

Fluid

e)

Partial

82.

Agile Software Development is based on

a)

Incremental Development

b)

Iterative Development

c)

Linear Development

d)

Both Incremental and Iterative Development

83.

A linear approach to software development is called?

a)

Linear Strait Method

b)

Waterfall method

c)

Scream method

d)

Downpour method

84.

My watch displays the current weather downloaded from the internet. My watch is an IOT device.

a)

True

b)

False

85.

Which of the following could be an IOT device?

a)

A Lamp

b)

A Couch

c)

A Pen

d)

All of the Above

86.

The following trend is NOT related to the growth in IOT technology

a)

Increase in computer monitor size over time

b)

Increase in computer performance over time

c)

Decrease in computer size over time

d)

Decrease in computer cost over time

87.

Which of these security approaches is feasible for most IOT devices?

a)

Use of antivirus software

b)

Use of internal firewall

c)

Regular installation of product firmware updates

d)

Complete separation of the device from the internet

88.

IOT devices gather private information about users. Which statement is most true about the security of that data?

a)

User can ensure security of collected data by encrypting it manually

b)

Users must rely on data collecting agencies to securely store and transmit their data

c)

User can sue data collecting agencies if their data is not held securely

d)

Most data gathered by IOT devices is safe because IOT devices are not a target of hackers

89.

Although people are aware of the dangers of cyber attack, they often do not understand the risks to IOT device

a)

True

b)

False

90.

_______ are devices that detect and respond to changes in an environment. They’re embedded in smart phones and an integral part of the Internet of Things (IoT).

a)

ZigBee

b)

Wi-Fi

c)

Barcode

d)

RFID

e)

Sensors

91.
It is an integrated part of Future Internet and could be defined as a dynamic global network infrastructure with self configuring capabilities based on standard and interoperable communication protocols where physical and virtual ‘things’ have identities, physical attributes, and virtual personalities and use intelligent interfaces, and are seamlessly integrated into the information network.
a)
Internet of Things
b)
Artificial Intelligence
c)
Geo-Localization
d)
Architecture
e)
ZigBee
92.
Uses electromagnetic fields to automatically identify and track tags attached to objects. This is a kind of IoT technology that is widely used in Transport and Logistics, easy to deploy, and the communication range and the frequency depends on the type of technology.
a)
ZigBee
b)
WIFI
c)
Barcode
d)
RFID
e)
Sensors and Smartphones
93.
Are devices that detect and respond to changes in an environment. They’re embedded in smart phones and an integral part of the Internet of Things (IoT).
a)
ZigBee
b)
WIFI
c)
Barcode
d)
RFID
e)
Sensors
94.
If two users are accessing the same network through the cloud, they are probably...
a)
are using the same device.
b)
are in the same location.
c)
can access the same shared resources.
d)
accessed the cloud at the same time.
95.
Shared resources can be assessed by multiple users.
a)
True
b)
False
96.
Businesses uses cloud services to streamline their operations.
a)
True
b)
False
97.
If you use gmail, your emails are probably stored locally.
a)

True

b)

False

98.
A student scans an item in the real world and their phone tells them what it is.
a)
Augmented
b)
Fully-immersive virtual
c)
Non-immersive virtual
d)
Map
99.
A teacher of a design class has her students use an app to see what different fixtures and paint colors would make the classroom look like.
a)
Augmented
b)
Fully-immersive virtual
c)
Non-immersive virtual
d)
Semi-Virtual 
100.

One difference between system flowcharts and data flow diagrams is that system flowcharts show conditional logic whereas DFDs don't.

a)

True

b)

False

101.

This is the symbol for

a)

External entitles

b)

Processes

c)

Data stores

d)

Data flows

102.

This is the symbol for

a)

External entitles

b)

Processes

c)

Data stores

d)

Data flows

103.

This is the symbol for

a)

External entitles

b)

Processes

c)

Data stores

d)

Data flows

104.

The process symbol is used to represent

a)

Customers queries in process

b)

Shipping of goods in process

c)

Manual or computer-driven process that changes data

d)

Sales negotiation in process

105.

What is the external entity used for?

a)

To show all the external works taking place outside the organisation

b)

To represent source or destination of data that is external to the system

c)

To represent all employees who work out on the field

d)

To represent private event held

106.
One of the maintenance aim is 
a)
Develop new system in line with business need 
b)
Preserve our IT systems in optimal condition
c)
Report the problem as thy occur 
107.
A preventative maintenance is 
a)
Carry out system maintenance on a periodic basis 
b)
Actions taken to fix problems after they have occurred. 
c)
Negotiating with IT support to meet the requirement 
108.
What can the IT do to keep the software maintained? 
a)
Adapt the software in line with changes to business requirements
b)
Provide maintenance equipments for any computerised device
c)
Analyses the risk on the business continuity 
109.
preventative maintenance program is used by a business to:
a)
Extend the warranty on equipment purchased.
b)
Gain extra performance from a piece of equipment
c)
Maximise the life of equipment in a cost effective manner
110.
Which type of maintenance ensures that equipment is ready and available at the time of need?
a)
Preventive
b)
reactive
c)
Off-equipment
111.

An individual virtual machine; also called an application cell.

a)

deep web

b)

container

c)

onion network

d)

virus

112.

Looks and functions like an actual Computer Operating System (COS), but is separated from the operating system running on the machine.

a)

application cell

b)

host operating system

c)

hypervisor

d)

virtual machine

113.

In virtualization, the operating system that hosts the virtual operating systems.

a)

virtual machine (VM)

b)

Virtual machine (VM) sprawl

c)

hypervisor

d)

host operating system

114.

Software that runs on a physical computer and manages one or more virtual machine operating systems.

a)

snapshot

b)

sandbox

c)

hypervisor

d)

provisioning

115.

A virtual environment running programs and processes from the main computer system to provide an isolated place to test and deploy applications and configurations - a safe zone for investigating and finding issues in systems.

a)

virtual machine escape

b)

sandbox

c)

application cell

d)

hypervisor

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