What does a cryptocurrency miner do to check a block?

combines list of transactions with the nonce

The company Osso launched a VR system. What did it do?

allowed surgeons to practice dangerous surgeries

How do computer viruses work?

make tons of copies of themselves and cause problems

using links to put malware on a computer

When it comes to approving a cryptocurrency transaction, what is a node?

any computer that reviews a transaction in an open block

What does the communication hardware in an IoT device do?

transmits info to a central hub

What does a bank represent?

centralized way of controlling money

In a VR headset, what do gyroscopes do?

let the system know which was the head is pointing

In a blockchain, what happens if someone has messed with the data?

some nodes will have different information

the technology behind cryptocurrency

a feeling that you or the world is spinning when you're not

Bitcoin was the first company to...

allow peer-to-peer transactions without a bank

In blockchains, what happens if data in a block changes?

a different hash is generated automatically

What is the Internet of Things?

when things can connect with other things and networks using the Internet

tells devices what to do and how

ways hackers pretend to be another person

studbud

ASC - Engineering and Technology

100 termsStudBud Administration13 plays

Imported from external platform

Flashcards100 cardsFPractice quizPHost liveL

Questions 100

Answers

1
The SHA-256 hash generator creates string that can be decoded.
FALSE
TRUE
2
Which list of systems is correct for an IoT device?
sensors, data processors, camera
sensors, UID, user interface
sensors, fingerprinting, UID
sensors, fingerprint, camera
3
What does a cryptocurrency miner do to check a block?
combines list of transactions with the nonce
looks at the hash
creates a new nonce
makes new math equations
4
Where can you buy cryptocurrency?
through Paypal
at any retailer
on your bank's website
at a foreign money exchange store
5
The company Osso launched a VR system. What did it do?
allowed surgeons to practice dangerous surgeries
allowed people to experience working in a hospital
allowed users to fly a plane
all of the above
6
When did cryptocurrency first start?
October 31, 2000
October 1, 2008
October 31, 2020
October 31, 2008
7
Smart farming is not environmentally friendly.
TRUE
FALSE
8
Money moves more quickly with cryptocurrency.
TRUE
FALSE
9
When it comes to cryptocurrency, how do nodes decide whethere data is valid in a block?
they look for red flags in the transaction
they vote
they create complicated mathematical codes
they send messages to everyone
10
How do computer viruses work?
make tons of copies of themselves and cause problems
all of the above
delete passwords from different computers
spread by deleting information from your computer
11
When is World Backup day?
there is no such thing
April 10th
March 31st
March 30th
12
What is clickbait?
downloading a virus
clicking on dangerous files on your computer
getting people to keep watching your videos
using links to put malware on a computer
13
Who wrote a story with a house similar to a Smart home?
Elon Musk
Ray Bradbury
Steve Jobs
Charles Dickens
14
When it comes to approving a cryptocurrency transaction, what is a node?
the central sysem that overseens crytocurrency
a network of wifi connections
an open block that needs approval
any computer that reviews a transaction in an open block
15
What does the communication hardware in an IoT device do?
transmits info to a central hub
sends information to the sensors
transmits internet throughout the device
checks to ensure the device is working properly
16
What does a bank represent?
centralized way of controlling money
a digital money system
decentralized system of keeping money
a way to get your hand son cryptocurrency
17
In a VR headset, what do gyroscopes do?
measure distance
let the system know which was the head is pointing
connect to real life maps to place the user in the world
allow the headset to display depth
18
What can Smart shoes do?
collect data about your body temperature
prevent odour
track foot pressure
tie your laces
19
How does cryotocurrency relate to climate change?
requires a lot of electricity
uses many computers
all of the above
produces a large amount of greenhouse gases
20
What does it mean to be a decentralized system?
all of the above
there is no organization in the middle
everyone makes sure the ledger is accurate
everyone keeps the ledger safe
21
Bitcon has collectable coins.
TRUE
FALSE
22
Who incided the first VR headset?
Vim Realiti
Ivan Howard
Ivan Sutherland
Imad Sotherground
23
In a blockchain, what happens if someone has messed with the data?
some nodes will have different information
all the nodes will have the same information
the person will be banned from using cryptocurrency
an alarm system will be set off
24
Which country considers cryptocurrency to be legally acceptable?
England
Mexico
El Salvador
Canada
25
What is blockchain?
the technology behind cryptocurrency
chains that connect blocks of digital coins
a form of cyber attack
a virus that infects your computer
26
More miners means a safer system with less fraud.
FALSE
TRUE
27
What type of personal information do people store on the internet?
social insurance numbers
all of the above
addresses
passwords
28
How many transactions can Bitcoin process per second?
1 000
24 000
50
7
29
In cryptcurrency, what do all blocks contain?
two chains
a node
header with informatiom
a secure lock
30
What did NASA use VR technology for?
visualizing space
training astronauts
developing video games
exploring the moon
31
Which jobs use VR for training?
takign care of wind turbines
all of the above
welding
working on an oil rig
32
Which system in an IoT can wear out?
none of these parts
user interface
sensors
central hub
33
What is vertigo?
feeling sick after moving up and down
a feeling that you or the world is spinning when you're not
having visions issues after too much movement back and forth
feeling dizzy after too much movement
34
Bitcoin was the first company to...
allow peer-to-peer transactions without a bank
create printable money
to create a digital bank
first peer-to-peer version of cybersecurity
35
In blockchains, what happens if data in a block changes?
the block is still approved
a different hash is generated automatically
the block disappears
the hash is deleted
36
An Internet of Things device is also know as a...
Wifi device
Internet Device
Apple Watch
Smart device
37
Places use SHA-256 to verify...
usernames
identities
products
code
38
What is the name of the system this first VR used?
3D coding
panorama
audio-video
stereoscopic
39
What is the Internet of Things?
another word for the world wide web
another word for a wifi connection
when things can connect with other things and networks using the Internet
all objects that can be purchased on the internet
40
Backing up your files can help in the case of a ransomware attack.
TRUE
FALSE
41
Which is the most familiar stereoscope?
Virtuosity
Virtual Boy
Stereomaster
View-Master
42
What is the name of the VR system that Nintendo released in 1995?
Nintendo VR
Virtual Boy
Virtual World
Game Boy
43
What could the wearer explor with the first VR headset?
a virtual school
a virtual continent
the entire globe
a virtual room
44
What happened to a user when they used this first VR device?
all of the above
experience smells
feel wind
hear sounds
45
What is spatial audio?
all of the above
volume in each simulates sounds from different directions
adjusting volume to make something sound closer/farther
helps the brain process images and direction
46
What is cybersecurity all about?
connecting your device to safe places
keeping online stuff safe
stealing information
protecting website from people who want to steal
47
What is firmware?
tells devices what to do and how
all the code for a program
spyware that can get onto a smart device
security programs
48
Ninetendo was the first gaming company to do what?
invent a VR system
create VR games
make an afforable VR device
make VR available at home
49
Bitcoin has no value compared to standard national currencies.
TRUE
FALSE
50
What is phishing?
fake emails
another word for cyber security
ways hackers pretend to be another person
using a fake email address
51
Bitcoin supply is...
limited
overflowing
unlimited
rare
52
Name for putting different images in each eye and blocking out everything else to see depth.
binocular
none of the above
stereopsis
stereoscopy
53
For Bitcoin, the chains connect only ____ transcations.
unverified
blocked
approved
open
54
All IoT devices must have acces to ____ in order to function.
computer
the internet
sensors
secure password
55
Anyone who asks four your password is probably...
your bank
a hacker
trying to help you
the government
56
How did the Virtuality system work?
Players plugged a controller into a special machine
Players hooked up to wires on their head and arms
Players placed their faces in a machine
Players sat in pods with headsets
57
What is the price range for a VR set?
several hundred to more than a thousand dollars
fifty to a hundred dollars
ten thousand to twenty thousand dollars
one thousand to ten thousand dollars
58
What ability does every Internet of Things device have?
transfer data
receive data
Answer 1 and 2
download apps
59
What is like a fingerprint for an IoT device?
communication hardware
data crumbs
own unique identifier (IUD)
sensors
60
What is cryptography?
the website for cryptocurrency
protecting information using mathematics
code used to protect cryptocurrency
writing code to protect the bank
61
When mining Bitcoin, what does the first miner to guess the correct nonce get?
validates the transaction
all of the above
closes the block
payment in the form of Bitcoin
62
Miners will keep trying to guess the nonce until they find one that is...
equal to a target line
more than a target line
way below a target line
equal or less than a set target line
63
IoT devices are easy to repair on your own.
TRUE
FALSE
64
VR was used to train people for which types of jobs?
dangerous
rare
difficult
exciting
65
How can wearables improve people's lives?
alrt police if someone with Alzheimer's has wandered
contact ambulance if someone falls
all of the above
monitor heart rate and send info to doctor
66
A strong password can protect your from hackers.
FALSE
TRUE
67
What is the difference between a modern and older VR system?
mordern use still images instead of videos
modern have better quality graphics
modern show video instead of still images
modern no longer include a headset
68
Which companies have started training front-line employees using VR?
FedEx and Loblaws
WalMart and FedEx
World Health Organization
Nintendo and Playstation
69
What is stereopsis?
brain understands distance from different images of each eye
brain understanding sound and sight
brain unable to understand distance between objects
brain being able to see similar images in both eyes
70
VR systems can help with climate change when it comes to travelling.
TRUE
FALSE
71
How is blockchain a secure method for storing information?
many blocks are rejected if there's too much currency
nodes never have to agree on valid data
no hackers can break the secure code
data cannot be changed once it is approved
72
What is a cyber attack?
when computers are not safe on wifi
when your password is put on a website
when cyber bullies attack people online
when someone tries to steal your info online
73
Blockchair is used to protect other types of digital data.
TRUE
FALSE
74
What does the governent need to do to protect you from hackers?
pass laws against hacking
block systems
change your passwords
control companies
75
When hackers change the language of your infor and ask you to pay to change it back.
locker attack
phishing
encryption attack
ransomware
76
When did the term "virtual reality" become associated with immersive environments?
2000
1990s
1960s
1980s
77
What do we call someone who steals info by breaking into computer networks?
fradulent hacks
cyber breachers
cyber attackers
hacker
78
With Bitcoin, why is it impossible to change the ledger?
password protected
no one has access
only the founder has access
info is encrypted with cryptography
79
Only the government is responsible for keeping your information safe.
TRUE
FALSE
80
Your school computer has enough power to come up with a correct nonce very quickly.
TRUE
FALSE
81
Buttons allow you to move your head around to see every direction of the virtual world.
FALSE
TRUE
82
What does antivirus software do?
deleted dangerous files from your computer
makes it hard for a virus to infect your device
makes it completely impossible for your to get a virus
changes your password to make them stronger
83
Humans have sensors.
FALSE
TRUE
84
When it comes to cryptocurrency, what is a hash?
all of the above
information included in the header of a block
a digtal signature
unique set of numbers and letters
85
Updates often fix...
glitches in your computer
security holes
malware on your device
none of the above
86
What is computer vision?
training computers to troubleshoot
sensors that view the environment
training computers to identify what's in pictures or videos
using computers for security
87
Nowadays. VR systems are cheaper because the video game industry has shown renewed interest.
TRUE
FALSE
88
What is a ransomware attack?
when you need to pay for more security on your computer
when your information is given to other companies
when hackers are violent
when hackers ask for money in return for your info
89
When did the Virtuality system come to video game arcades?
2001
2000
1991
1990
90
With cryptocurrency, what happens to a block that is rejected?
removed from the system and destroyed
becomes highlighted and sent to the police
becomes orphan block and goes back to the start
the block is fixed
91
Which is not a downside of cryptocurrency?
slow transactions
the government does not protect cryptocurrency
people don't invest in cryptocurrency
lots of computer power needed
92
What happened with the Argus II eye implant?
personal information was stolen
the sensors stopped working
code wasn't updated so it stopped working
the central hub malfunctioned so it stopped working
93
Which information described malware?
all of the above
used to steal your stuff
computer programs
computer viruses
94
Who dreamed up the system of Bitcoin?
Sasha Nakamoto
Satoshi Nakamoto
Sashimi Nakamoto
Nakamoto Satsh
95
Which is an example of phishing?
pretending to be your bank
downloading malware onto your computer
stealing your diary
making many copies of a virus
96
How did Bitcoin solve the problem of double spending?
encrypted coins
numerous websites checking the transations
decentralized ledger so everyone can check amounts
moderators to check the ledger
97
What does Smart home technology allow you to do?
have wifi all over your home
automate tasks around the house
protect devices in your home from cyber attacks
collect data about your house
98
How many Bitcoins are there that can be mined?
21 million
50 million
2 million
1 thousand
99
Which is a disadvantage of IoT?
won't work if internet goes off
information can easily be lost
makes tasks for difficult
device often needs reprogramming
100
What is cryptocurrency?
digital currency where transations are not checked
digital currency with a shared ledger
digital currency that the bank can control
digital currency with a centralized system

ASC - Engineering and Technology Flashcards | StudBud