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WorksheetsBCS Mobile & Operating Systems
Total questions: 93
Worksheet time: 45mins
What is encryption?
Building tombs
Protecting data by scrambling it
Unscrambling data to read it
Exploring church basements
What do you call the algorithm used to encrypt data?
Flux capacitor
Oscillation overthruster
Cipher
Transmogrifier
What do we call unscrambled, readable data?
ASCII
Ciphertext
Plaintext
Purple prose
Who used the Caesar Cipher?
Augustus Caesar
Hadrian Caesar
Julius Caesar
Palpatine Caesar
VPN stands for?
Virtual Public Network
Virtual Private Network
Virtual Protocol Network
Virtual Perimeter Network
What are the acronyms for the 3 most common VPN protocols?
PPTP, LLTP, IPsec
PPTP, L2PP, IPseg
PPTP, L2TP, IPsec
PTPP, L2TT, IPsec
A virtual private network (VPN) is a private network that uses a public network (the Internet) to connect users
TRUE
FASLE
Which order are the layers in when receiving data?
Link, Network, Transport, Application
Application, Transport, Network, Link
Link, Transport, Network, Application
Application, Network, Transport, Link
There are _________ types of VPNs.
3
2
5
4
Which types of VPNs are used for corporate connectivity across companies residing in different geographical location?
Remote access VPNs
Site-to-site VPNs
Peer-to-Peer VPNs
Country-to-country VPNs
_________ type of VPNs are used for home private and secure connectivity.
Remote access VPNs
Site-to-site VPNs
Peer-to-Peer VPNs
Router-to-router VPNs
What are the different ways to classify an IDS?
Zone based
Host & Network based
Network & Zone based
Level based
An Intrusion Detection System (IDS) .....
can be configured to allow the intruder IP when an alert is generated
opening the network connection for an active and passive attack
inspects network activities and identifies suspicious patterns that may indicate a network attack
an identifier for the correct usage of particular computer or total network
Firewalls, antivirus and anti spyware installed on every machine that monitors all incoming and outgoing traffic for suspicious activities
Host intrusion detection system (HIDS)
Distributed intrusion detection system (DIDS)
Intrusion detection system (IDS)
Network intrusion detection system (NIDS)
Multiple detection systems across a network communicating together to give a better picture of network activity.
Distributed intrusion detection system (DIDS)
Host intrusion detection system (HIDS)
Intrusion detection system (IDS)
Network intrusion detection system (NIDS)
Looks for specific network patterns generate by known malware.
Signature based
Host intrusion detection system (HIDS)
Anomaly based
Security functionality
Which zone is used to publish external websites for an organization?
Intranet
Extranet
Internetwork
DMZ
This is when Microsoft releases their regularly scheduled patches.
2nd Tuesday of the month
1st Friday of the month
3rd Thurdsday of the month
Every day is patch day
This term refers to when a piece of software is no longer supported by the vendor.
End of Life
Zero Day
Penultimate Patch
Last Bug
Traditionally, this term referred to a software update that contains all the patches released up to a certain point in time.
Beta Release
Service Pack
App Bundle
Relevant Release
You are more comfortable working on your laptop as opposed to your 4G tablet. Your laptop is Wi-Fi capable. What would you add to your laptop to allow you to stay connected while travelling?
Bluetooth
Wi-Fi extender
mobile hotspot
GPS
What are the acronyms for the 3 most common VPN protocols?
PPTP, LLTP, IPsec
PPTP, L2PP, IPseg
PPTP, L2TP, IPsec
PTPP, L2TT, IPsec
In VPN’s the term of ‘tunnelling’ refers to?
An optional feature that increases network performance if it is turned on.
The encapsulation of packets inside packets of a different protocols to create and maintain the virtual circuit.
The method a system administrator uses to detect hackers on the network.
A marketing strategy that involves selling VPN products for very low prices in return for expensive service contract.
An _________ is a network that allows authorized access from outside users.
intranet
internet
extranet
none of the above
What is/are the reasons that we needed VPN for our
phone?
Protect password of the accounts
Help to stay safe on public Wi-Fi
Help to overcome geo-blocking restrictions
All of the above
If a public Wi-Fi network (such as in an airport or café) requires a password to access, is it generally safe to use that network for sensitive activities such as online banking?
Yes, it is safe.
No, it is not safe.
Not sure.
There are _________ types of VPNs.
3
2
5
4
_________ type of VPNs are used for home private and secure connectivity.
Remote access VPNs
Site-to-site VPNs
Peer-to-Peer VPNs
Router-to-router VPNs
(T/F) IPsec can be used to secure network traffic between machines.
True
False
(T/F) IPsec can be used to secure network traffic between two networks.
True
False
A client wants to use a Windows Server 2016 server as a VPN server. However, the networking team allows only HTTPS through the firewall. Which VPN protocol should be used?
PPTP (Point to Point Tunneling Protocol)
L2TP (Layer 2 Tunneling Protocol)
IKEv2 (Internet Key Exchange version 2)
SSTP (Secure Socket Tunneling Protocol)
To use VPN Reconnect, which VPN protocol should be used?
PPTP (Point to Point Tunneling Protocol)
L2TP (Layer 2 Tunneling Protocol)
IKEv2 (Internet Key Exchange version 2)
SSTP (Secure Socket Tunneling Protocol)
A client wants to install a VPN server that can offer unencrypted tunnels by default or encrypted tunnels by using IPsec. Which of the following services should be used?
DNS (Domain Name Services)
L2TP (Layer 2 Tunneling Protocol)
WINS (Windows Internet Naming Service)
IPsec (Internet Protocol Security)
What does BYOD stands for?
Bring Your Own Disaster
Buy Your Own Desk
Bring Your Own Device
Buy Your Own Data
The introduction of BYOD requires a completely new information security policy.
True
False
Expansion of existing policies.
Data malware is not one the dangers on the implementation of BYOD.
True
False
Which of the following are benefits of BYOD?
Employee satisfaction
Decreased user productivity
Increased total cost
Flexibility
Up to date devices
It is necessary to have proper policies in place to ensure that an organisation’s Privacy and Confidentiality are preserved.
True
False
What do you call a client application that allows a "client" computer to connect a "host" computer from a remote location?
Remote Control
Remote Desktop
Remote Area
Remote Road
Which of the following examples below is a function of Remote Desktop?
Let the hosts to delete all files to the connected computer.
Let the user can't access to a specific file.
Let the hosts to block the internet passage.
Let users connect to a specific computer.
What are the benefits of a Remote Desktop?
Speed, Flexibility, Accessibility, Savings and Free Environment.
Flexibility, Convenience, Speed, Savings and Free Environment.
Speed, Internet Speed, Accessibility, Savings and Free Environment
Speed, Modem, Free Internet, Savings, Flexibity and Free Environment
What will be the first step in configuring the Remote Desktop?
Click on allow Remote Access
Click on System and Security
Allow Remote Desktop Connections to this computer
Open Control Panel
Give two disadvantages of VoIP
Spam – you can receive a lot of nuisance emails
Low Initial Investment - To get started, you only need your existing Internet connection, a free VoIP software and a microphone (if not built in) start-up costs are negligible.
VoIP calls over computers or mobile devices may suffer from performance issues in case of poor hardware. A slow computer, for example, can affect your ability to load VoIP software, make calls and multi-task during calls.
Needs a good broadband connection
Give two advantages of Video Conferencing
Reliant on internet speed – connectivity speed may cause break ups in sentences
Reduce costs – no need for expensive travel
Reduced carbon footprint
Permanent copy – there is a copy which can be used for reference compared to a telephone call
Two advantages of VoIP are
Less personal - takes away the face-to-face communication in the one place
Low Initial Investment - To get started, you only need your existing Internet connection, a free VoIP software and a microphone (if not built in) start-up costs are negligible.
Easy to send documents - with VoIP, you can send large documents, videos and pictures to any contact using the included VoIP software.
Needs a good broadband connection
SIP Means
Session initiation protocol
session internet procedure
seasonal internal practice
sessional initial protocol
What does the term "Encrypted" mean?
It describes a set of rules that allow users to use specific components or access data folders or files
It describes a flaw or weakness in the design, implementation or configuration of a system. These can be exploited by 'black hats' to attack a digital system.
It describes additional settings or program codes that fix vulnerabilities in applications, operating systems and evice firmware, and are usually downloaded from the manufacturer.
It means that information or data has been converted to a type of code that cannot be understood without a translation key
What does the term "Security Patches" mean?
It describes a set of rules that allow users to use specific components or access data folders or files
It describes a flaw or weakness in the design, implementation or configuration of a system. These can be exploited by 'black hats' to attack a digital system.
It describes additional settings or program codes that fix vulnerabilities in applications, operating systems and evice firmware, and are usually downloaded from the manufacturer.
It means that information or data has been converted to a type of code that cannot be understood without a translation key
Identify the benefits of encrypting data?
Its quick
It scrambles data so others cannot easily read it.
It ensures organisations comply with data protection laws
It stops data from being stolen
What are the drawbacks of encryption? (Click all that apply)
Encryption does not stop data from being stolen
Encryption scrambles data so that others cannot easily read it.
Encryption methods need to continually 'evolve' and change as attackers find new ways to access data
Encrypting a large amount of data takes time
Which of the following are useful methods of protecting transmitted data? (Click all that apply)
Encrypting a complete disk drive.
Checking a website has a padlock and the HTTPS prefix on the website address
Encrypting data in a database
Using a digital signature, transmitted to a web browser to prove a file's identity.
Which of the following are device hardening techniques? (Click all that apply)
Applying security patches and updates
Restricting user access
Storing unencrypted data
Installing anti-virus and anti-spyware software
What allows a device to be managed remotely?
mobile device management (MDM)
mobile application management (MAM)
mobile resource management (MRM)
mobile wrapper management (MWM)
What enforces the location in which an app can function by tracking the location of the mobile device?
location resource management
geo-fencing
geo-tagging
Graphical Management Tracking (GMT)
Apple is
open and less secure
open and more secure
closed and more secure
closed and less secure
Android is
closed and less secure
closed and more secure
open and more secure
open and less secure
What is the similarity you found in all the mobile phone Security model?
Virtualization
Sandboxing
Secure Element
Encrypted File System
What should a strong password include?
At least one upper case letter
Short, easy to guess words
Date of birth
At least one number
At least 8 characters
If testers have little to no information regarding the system they are trying to hack they are:
White box testing
Yellow box testing
Black box testing
Blue box testing
What would make a password STRONGER? Check ALL that apply:
Using special characters, like # * & @
Using my pet's birthday
Using my BFF's name
Making it longer
True or False: This a strong password:
Ss!tRBd!@18PP
True
False
What change would make this password the STRONGEST?
polyprep
Remove "prep" - now "poly"
Add my graduation year - now "polyprep2026"
Make letters special characters - now "P0!yPR3p
True or False: I should carry a list of my passwords with me all the time?
True
False
A family has three computers that have Windows 10 installed. In Windows 10, how can network traffic be minimized when downloading Windows updates?
Enable file caching
Enable the WriteFile function
Enable the Get updates from more than one place option
Enable Internet Sharing
An administrator has just added a new update to the WSUS server and she wants to test the update to the test group. Which of the following commands should she use so that she doesn’t have to wait for the update to be deployed?
gpupdate /force
wuauclt.exe /detectnow
update /now
wsusserver /startupdate
Which of the following types of update is a tested, cumulative set of hotfixes, security updates, critical updates, and updates, as well as additional fixes for problems found internally?
Security update
Critical update
Service pack
Cumulative patch
Which of the following tools is used to remove a Windows update?
Windows Settings
Windows Control Panel
Windows GPO
Windows WSUS
Which of the following can be used to control updates that are being deployed to users?
Use the Defer upgrades option
Use WSUS or System Center Configuration Manager
Disable Insider Preview
Install Windows 10 Enterprise LTSB
Which HTTP response code means success?
100
200
301
403
The world wide web is...
files requested through HTTP sent over the internet.
aliens sending neurological transmissions.
a network of underground wires sending direct signals from one device to another.
satellites sending signals from one computer to another.
What is the secure version of HTTP called?
Hypertext Transfer Protocol Locked
Hypertext Transfer Protocol Safe
Hypertext Transfer Protocol Secure
Hypertext Transfer Protocol Hacker Free
The conversation between your computer and a server when requesting a website is mainly made up of _________ requests....
"Ask"
"Help"
"Get"
"Ack"
406
405
503
506
400
404
504
201
What type of software in the picture?
system software
programming software
application software
none of the above
Mac OS is an example of ______________ software.
application
utility
system
programming
Apple online store is available in these countries, except...
Kazakhstan
Oman
Tunisia
Puerto Rico
Which iPad models will be capable of updating to iPadOS 14? Mark all that apply.
iPad Pro (all models)
iPad Air 2 or later
iPad (5th gen or later)
iPad mini 4 or later
Original iPad
What is the new handwriting to text feature called on iPad?
Scratch
Scrabble
Swift
Scribble
What new Privacy features will be part of iPadOS 14? Mark all that apply.
Fast privacy information summary in the App Store
Limit library access in Photos
Recording indicator when microphone or camera are in use
Share only your approximate location
What operatig system does Wayne hate the most?
Windows 11
Mac OS
iPad OS
Chrome OS
