What is the purpose of a Denial of Service attack?

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

The output of one-way encoding.

What is social engineering?

Using social skills to convince ppl to reveal information.

What is a motherboard?

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

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

getting data on and off the network.

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.

Usability and user experience are related in the following way:

Good usability is important for a good user experience

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

The input and data processing are totally different.

Which of the following is NOT a trend in software?

The number of popular Operating Systems has been increasing.

k-means is an algorithm for ...

clustering data using unsupervised learning.

Which of the following statements is the most accurate?

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

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

Fibre optic cables are mostly immune to network interference

How does Bluetooth differ from Wi-Fi?

Bluetooth links between devices doesn't involve intermediates

The data component of an information system is:

The input to the information system.

Machine learning is about

using algorithms to learn from data & build adaptive models

What happens when you boot up a PC?

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

What is true about domain names?

Each registered domain name has a unique IP address.

A filter between a private network and the internet

How do JPG and PNG formats differ?

PNG allows for transparency while JPG does not.

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COMP111 2020S2 Revision Bank Two

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Questions 35

Answers

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

COMP111 2020S2 Revision Bank Two Flashcards | StudBud