EXAM G7

HINTS FOR PAS

1. Explanation of LAN, WLAN and WAN and their characteristics.

Network types

WLAN

LAN

WAN

LAN

A local area network (LAN) enables a group of computers that are in

close proximity to each other to be networked.

Typically, a LAN would be used in a school, in an office or at home.

Wireless Local Area Network

A local area network accessed using radio wave communication without cable

For Example : Wifi , Bluetooth

WLAN

There are two ways of connecting the devices

WAN

A Wide Area Network (WAN) is a network that connects separate LANs over

a large geographical area

A WAN will connect cities, a country, or many countries

Example : Internet, Bank

Multiple Choice

What is LAN ?

• Enables a group of computers that are in close proximity to each other to be networked.

• A network that connects separate LANs over

  a large geographical area

• access using radio wave communication without cable

Multiple Choice

What is WLAN ?

• Enables a group of computers that are in close proximity to each other to be networked.

• A network that connects separate LANs over

  a large geographical area

• access using radio wave communication without cable

Multiple Choice

What is WAN ?

• Enables a group of computers that are in close proximity to each other to be networked.

• A network that connects separate LANs over

  a large geographical area

• access using radio wave communication without cable

Multiple Choice

Which of the following is true about LAN

• Enables a group of computers that are in close proximity to each other to be networked.

• A network that connects separate LANs over

  a large geographical area

• access using radio wave communication without cable

HINTS FOR PAS
2. The differences between Wi-Fi and Bluetooth

Comparison of Wi-Fi and Bluetooth

Multiple Select

Which of the following is true about WIFI

• Communication Using Radio Waves

• Has a range of up to 100 metres

• Low data transfer

• Fewer Users Can Be Supported

• Devices Cannot Communicate Directly

Multiple Select

Which of the following is true about Bluetooh

• Communication Using Radio Waves

• Many Users Can Be Supported

• Low data transfer

• Fewer Users Can Be Supported

• Devices Cannot Communicate Directly

HINTS FOR PAS
3. Two types of network topology
For You : understand the meaning briefly and pictures

BUS TOPOLOGY

Bus topology is a way of connecting several computer devices with one cable (bus) as a transmission medium or data traffic center.

Intranet VS Extranet

STAR TOPOLOGY

a star network is a network model that resembles a star with the server in the middle as the center

Multiple Choice

Which one is Bus Topology ?

• a way of connecting several computer devices with one cable as a transmission medium or data traffic center.

• network model that resembles a star with the server in the middle as the center

Multiple Choice

Which one is Star Topology ?

• a way of connecting several computer devices with one cable as a transmission medium or data traffic center.

• network model that resembles a star with the server in the middle as the center

HINTS FOR PAS
4. Types of network devices

For You : understand the meaning briefly and pictures

Common network devices

A network interface

card (NIC)

Hub

Switch

Bridge

NIC

A Network Interface Card (NIC)

is a printed circuit board that allows the computer to

communicate with other devices over a computer network

HUB

Hub

is a device used for connecting computers to form a network. It

broadcast data to all devices not just the one they are intended for

Switch

Switch

is a device used for connecting computers to form a network but more
intelligently than a hub by inspecting the MAC address of the device to

which they should be sent

Bridge

Bridge

is used to connect the different segments and they can prevent

transmissions from one segment reaching the others.

Multiple Choice

What is NIC ??

• is a printed circuit board that allows the computer to communicate with other devices over a computer network

• a device used for connecting computers to form a network. It broadcast data to all devices not just the one they are intended for

• a device used for connecting computers to form a network but more intelligently than a hub by inspecting the MAC address of the device to which they should be sent

• to connect the different segments and they can prevent transmissions from one segment reaching the others

Multiple Choice

What is Hub ??

• is a printed circuit board that allows the computer to communicate with other devices over a computer network

• a device used for connecting computers to form a network. It broadcast data to all devices not just the one they are intended for

• a device used for connecting computers to form a network but more intelligently than a hub by inspecting the MAC address of the device to which they should be sent

• to connect the different segments and they can prevent transmissions from one segment reaching the others

Multiple Choice

What is Switch ??

• is a printed circuit board that allows the computer to communicate with other devices over a computer network

• a device used for connecting computers to form a network. It broadcast data to all devices not just the one they are intended for

• a device used for connecting computers to form a network but more intelligently than a hub by inspecting the MAC address of the device to which they should be sent

• to connect the different segments and they can prevent transmissions from one segment reaching the others

Multiple Choice

What is Bridge ??

• is a printed circuit board that allows the computer to communicate with other devices over a computer network

• a device used for connecting computers to form a network. It broadcast data to all devices not just the one they are intended for

• a device used for connecting computers to form a network but more intelligently than a hub by inspecting the MAC address of the device to which they should be sent

• to connect the different segments and they can prevent transmissions from one segment reaching the others

HINTS FOR PAS
5. Explanation and examples of Cloud computing and cloud storage

Cloud
Computing
VS
Cloud
Storage

Cloud computing

●

Cloud Computing is the delivery
of computer services over the
internet.

●

These services, such as software
and storage space, are housed in
remote computers called servers.

Cloud Storage

●

Cloud Storage is the
storage of digital data on
remote server

●

Cloud storage is simply
storing data & files and
performing backups to an
external location offsite

Cloud Computing & Cloud Storage

In Simple Word

●

You can have cloud storage without cloud computing, but you
won’t be able access data stored in the cloud

●

You cannot have cloud computing without cloud storage
because the apps need to be stored somewhere (the cloud)

Cloud Storage = Data

Cloud Computing = Processing

Cloud computing

Examples of
Cloud Computing

●

Google Docs App

●

Photo Viewer App

●

iChat

●

Outlook Online

●

Social Media Apps

Examples of
Cloud Storage

●

Google Drive

●

Drop Box

●

iCloud

●

OneDrive Personal
Storage

●

Photo uploads to social
media

Examples of
Cloud Computing

●

Google Docs App

●

Photo Viewer App

●

iChat

●

Outlook Online

●

Social Media Apps

Multiple Select

Examples of Cloud Storage

• Google Drive

• Drop Box

• IChat

• Social Media Apps

• ICloud

Multiple Select

Examples of Cloud Computing

• Google Docs App

• Google Drive

• IChat

• Social Media Apps

• Photo Viewer App

HINTS FOR PAS
5. Explanation Security of Networks
For You : understand the meaning briefly and pictures

Security of
Computer
Networks

Encryption

Encryption is the process by which digital messages are transformed
into secret codes so that it remains safe and hidden until it reaches
the receiver. Encryption is used on the Internet to transfer data such as

payment information, e-mails, or personal data confidentially and

protected from manipulation

Sender

Recipients

Firewalls

Firewalls are either software or hardware devices that protect against
unauthorised access to a network, and are primarily used to prevent

unauthorised access from the internet.

Authentication

Authentication is the process or act of proving or showing something

that is true, genuine or valid

Multiple Choice

What is Encryption ?

• the process by which digital messages are transformed into secret codes

• either software or hardware devices that protect against unauthorised access to a network, and are primarily used to prevent unauthorised access from the internet.

• the process or act of proving or showing something that is true, genuine or valid

Multiple Choice

What is Firewalls ?

• the process by which digital messages are transformed into secret codes

• either software or hardware devices that protect against unauthorised access to a network, and are primarily used to prevent unauthorised access from the internet.

• the process or act of proving or showing something that is true, genuine or valid

Multiple Choice

What is Authentication ?

• the process by which digital messages are transformed into secret codes

• either software or hardware devices that protect against unauthorised access to a network, and are primarily used to prevent unauthorised access from the internet.

• the process or act of proving or showing something that is true, genuine or valid

Authentication

A password is a secret word or phrase
that is used to authenticate a user so
that they can gain access.

Personal and security data can be encoded
on the magnetic stripe of a card and can
be swiped through a reader to allow access

Password

Magnetic stripe

Authentication

A smart card is a physical card that has
an embedded integrated chip that acts
as a security token.

a small piece of electronic equipment that
provides a safe way for exchanging data
and money online

Smart card

Electronic Token

Authentication

A method of authentication not requiring
a user to login. Using network, location,
and device signals to recognize users.

Zero Login

Multiple Choice

What is Password ?

• a secret word or phrase that is used to authenticate a user so that they can gain access

• Personal and security data can be encoded on the magnetic stripe of a card and can be swiped through a reader to allow access

• a small piece of electronic equipment that provides a safe way for exchanging data and money online

• A method of authentication not requiring a user to login. Using network, location, and device signals to recognize users.

• a physical card that has an embedded integrated chip that acts as a security token

Multiple Choice

What is Magnetic Stripe ?

• Personal and security data can be encoded on the magnetic stripe of a card and can be swiped through a reader to allow access

• a small piece of electronic equipment that provides a safe way for exchanging data and money online

• A method of authentication not requiring a user to login. Using network, location, and device signals to recognize users.

• a secret word or phrase that is used to authenticate a user so that they can gain access

• a physical card that has an embedded integrated chip that acts as a security token

Multiple Choice

What is Smart Card ?

• A method of authentication not requiring a user to login. Using network, location, and device signals to recognize users.

• a small piece of electronic equipment that provides a safe way for exchanging data and money online

• a secret word or phrase that is used to authenticate a user so that they can gain access

• Personal and security data can be encoded on the magnetic stripe of a card and can be swiped through a reader to allow access

• a physical card that has an embedded integrated chip that acts as a security token

Multiple Choice

What is Electronic Tokens ?

• A method of authentication not requiring a user to login. Using network, location, and device signals to recognize users.

• a small piece of electronic equipment that provides a safe way for exchanging data and money online

• a secret word or phrase that is used to authenticate a user so that they can gain access

• Personal and security data can be encoded on the magnetic stripe of a card and can be swiped through a reader to allow access

• a physical card that has an embedded integrated chip that acts as a security token

Multiple Choice

What is Zero Login ?Health issues of using it

• A method of authentication not requiring a user to login. Using network, location, and device signals to recognize users.

• a small piece of electronic equipment that provides a safe way for exchanging data and money online

• a secret word or phrase that is used to authenticate a user so that they can gain access

• Personal and security data can be encoded on the magnetic stripe of a card and can be swiped through a reader to allow access

• a physical card that has an embedded integrated chip that acts as a security token

HINTS FOR PAS
6. Explain Positive and negative effect of smart devices used in the home
For You : Page 83

Multiple Select

The Positive Effects of Smart Devices Used In The Home ??

• Saving Time and Money

• Improved Home Security

• Smart Devices can make money run out

• Depend on the Internet which may Fail

• Improved Care and Protection

Multiple Select

Smart Device Have Negative Effect on the way we live

• More Leisure Time

• There is No Family Contact

• No Need To Click Button, Just Speak or Do Motion

• More Effective and More Efficient

• Spend More Time Indoors than outside Involving a Physical Activity

HINTS FOR PAS
7. Health Issues of using IT
For You : name the injury and mention a way to reduce the risk

Multiple Choice

What is A??

• RSI (Repetitive Strain Injury)

• Eye Strain

• Headaches

• Back Problems

Multiple Choice

What is A??

• RSI (Repetitive Strain Injury)

• Eye Strain

• Headaches

• Back Problems

Open Ended

how to reduce headache ? ( mention briefly min 2)

Multiple Choice

What is B ??

• RSI (Repetitive Strain Injury)

• Eye Strain

• Headaches

• Back Problems

Open Ended

how to reduce Eye Strain ? ( mention briefly min 2)

Multiple Choice

What is C ??

• RSI (Repetitive Strain Injury)

• Eye Strain

• Headaches

• Back Problems

Open Ended

how to reduce Back Problems ? ( mention briefly min 2)

Multiple Choice

What is D ??

• RSI (Repetitive Strain Injury)

• Eye Strain

• Headaches

• Back Problems

Open Ended

how to reduce RSI (Repetitive Strain Injury) ? ( mention briefly min 2)