What is different in how we process and store data on audio and facts?

The input and data processing are totally different.

What happens when you boot up a PC?

Part of the OS are copied from a hard drive into memory.

What is a motherboard?

It is a circuit board that contains a computer's CPU.

Usability and user experience are related in the following way:

Good usability is important for a good user experience

A filter between a private network and the internet

How do JPG and PNG formats differ?

PNG allows for transparency while JPG does not.

The data component of an information system is:

The input to the information system.

Which of the following is NOT a trend in software?

The number of popular Operating Systems has been increasing.

What is true about domain names?

Each registered domain name has a unique IP address.

The output of one-way encoding.

How does Bluetooth differ from Wi-Fi?

Bluetooth links between devices doesn't involve intermediates

What is the purpose of a Denial of Service attack?

Flooding a server with requests in order to shut it down.

The transport layer of the Open Systems Interconnection Model is primarily concerned with...

getting data on and off the network.

Which of the following statements relating to network interference is true?

Fibre optic cables are mostly immune to network interference

If we increase the input size of an algorithm, what will happen to the process time?

Depends on the algorithm; all of the above can be correct.

Machine learning is about

using algorithms to learn from data & build adaptive models

What is social engineering?

Using social skills to convince ppl to reveal information.

Which of the following statements is the most accurate?

Some tasks that r easy 4 ppl r surprisingly hard 4 machines

k-means is an algorithm for ...

clustering data using unsupervised learning.

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COMP111 2020S2 Revision Bank Two

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Questions 35

Answers

1
What is different in how we process and store data on audio and facts?
The input and data processing are totally different.
The input, processing, and storage tools are different.
Only the input is totally different.
None of the above
2
What happens when you boot up a PC?
Portions of the operating system are compiled.
Part of the OS are copied from memory into the hard drive.
Portions of the operating system are emulated.
Part of the OS are copied from a hard drive into memory.
3
What are the primary components of a network?
Computers, software, and cables.
Cables and devices
Devices and operating systems.
Hardware and protocols
4
Who invented the World Wide Web (WWW)?
Steve Wozniak
Bill Gates
Tim Berners-Lee
Steve Jobs
5
Algorithms: Which of the following statements is true?
One algorithm can serve another algorithm.
All of the above
One algorithm can trigger another algorithm.
One algorithm can be part of another algorithm.
6
What are examples of switching hardware?
Modems and hubs
Routers and hubs
Optical network terminal and Ethernet adapters
Ethernet adaptors and routers
7
Your email is private except for:
The copy stored on the servers between you and the receiver.
The copy stored on the servers of your Internet Provider.
All of the above
The copy stored at the destination ISP’s server.
8
How many different modes or values do 8 bits allow for?
16
128
32
256
9
There is no 100% security. What needs to be balanced?
Encryption and Decryption.
Security and Access.
Privacy and Ethics.
Windows and MacOS.
10
What is a motherboard?
It is a circuit board that contains a computer's CPU.
It is the main component of a microprocessor.
A computer's physical frame that holds everything together.
A circuit board used mostly in 50s.
11
Usability and user experience are related in the following way:
None of the above statements are true.
Good usability is important for a good user experience
They refer to the same thing.
All of the above statements are true.
12
Choosing a data type that can more accurately hold some content normally comes at the cost of:
Storage size
Neither speed nor size.
Speed of processing
Both speed and size
13
What is a firewall?
safety measure to protect internet from unauthorized access
A tool to block sites that are unwanted by the government
A tool to contain viruses
A filter between a private network and the internet
14
In terms of accessibility and space, human's short-term memory compares to what in computers?
SD cards
RAM
USB flash drives
Hard Disk Drive
15
How do JPG and PNG formats differ?
All of the above
PNG stores images in vector format.
PNG allows for 'lossless' scaling.
PNG allows for transparency while JPG does not.
16
According to the lecture on Online Social Networks, what proportion of the world population are Facebook users?
About 25%
About 33%
About 10%
About 50%
17
The data component of an information system is:
The output of the information system.
The input to the information system.
A series of integrated files containing relevant facts.
A set of facts that have been analysed by the process component.
18
Which of the following is NOT a trend in software?
Software has become more easy to share.
Software is increasingly sold as a service.
The number of popular Operating Systems has been increasing.
Increasingly, software is provided on the web.
19
What is true about domain names?
All of the above are true.
Each registered domain name has a unique IP address.
Each IP address has a unique domain name.
A domain name is necessary to connect to a web site.
20
What is a hash?
A function that is used to encrypt data.
Data that has been encoded using ASCII.
The output of one-way encoding.
A poor job done by a programmer when writing code.
21
Which tends to be most tacit?
Information
Data
Knowledge
All tend to be equally tacit
22
How does Bluetooth differ from Wi-Fi?
Bluetooth uses encryption when talking to the web server.
Bluetooth links between devices doesn't involve intermediates
Bluetooth allows for communicating over larger distances.
Bluetooth is much faster than Wi-Fi.
23
What is the purpose of a Denial of Service attack?
Flooding a server with requests in order to shut it down.
To organize a large number of computers for a common cause.
To hack into financial transactions and modifying them.
To act as a website visitor and upload a Trojan horse.
24
Transistors: Which of statements a to c (if any) is false?
None of them is false.
Quantum computing can offer higher speed for applications.
The smaller transistors get, the higher their design costs.
Transistors are getting smaller and smaller.
25
The transport layer of the Open Systems Interconnection Model is primarily concerned with...
All of the above.
getting data on and off the network.
assigning IP-addresses.
ensuring a stable connection between a sender and receiver.
26
Which of the following statements relating to network interference is true?
Fibre optic cables are mostly immune to network interference
The 2.4GHz radio frequency is the safest wireless frequency
Wired networks are largely immune to network interference.
Wireless networks are largely immune to network interference
27
How are online social networks different from actual (offline) social networks?
The information about connections is structured.
The information about connections is formalized.
All of the above are true.
The information about connections is centralized.
28
Which of these words means 'tricking' or 'fooling'?
Hacking
Fishing
Spoofing
Cracking
29
If we increase the input size of an algorithm, what will happen to the process time?
Process time would stay the same.
Depends on the algorithm; all of the above can be correct.
Process time would be increased linearly.
Process time would be increased exponentially.
30
Algorithms excel at solving...
problems for which output is not defined.
fuzzy problems.
None of the above.
problems with insufficient input information.
31
Machine learning is about
building deep neural network models for data analysis.
making machines that learn from human-computer interactions.
using algorithms to learn from data & build adaptive models
face recognition and friend recommendation on Facebook.
32
What is social engineering?
Manipulating Social Media to influence decision making.
Using social skills to convince ppl to reveal information.
Using Social Media as a platform to enhance info security.
Building systems with security flaws to be exploited later.
33
Which of the following statements is the most accurate?
Tasks that are easy for humans are also easy for machines.
Its easy to find these tasks: easy for ppl, hard for machine
Tasks that are hard for humans are also hard for machines.
Some tasks that r easy 4 ppl r surprisingly hard 4 machines
34
k-means is an algorithm for ...
data visualisation.
clustering data using unsupervised learning.
data classification using supervised learning.
None of the above.
35
What kind of network is the internet?
WAN
LAN
Can be either LAN or WAN
Neither LAN nor WAN

COMP111 2020S2 Revision Bank Two Flashcards | StudBud