Edexcel IGCSE ICT (9 -1) -Solved
Construct an expression to show how many bits are in 50 GB. - ANSWER-= 8 x 50 x
1024^3
Define "file access rights" - ANSWER-It limits access to files and what you can do with
the files
Define Bluetooth - ANSWER-Bluetooth is an unlicensed wireless connection method
which connects devices over a small range (up to 10m)
Define clock cycle per second - ANSWER-The number of times per second the
processor can carry out one or more instructions
Define cookies - ANSWER-Cookies are small files downloaded and stored which
records visits to a website; helps the website tailor subsequent visits to suit the
indivisual
Define copyright - ANSWER-a legal right that provides the creator of an original work
the sole authority to use and distribute it
Define Intranet - ANSWER-A network with a restricted access to be used by members
of a single organization which utilizes internet protocols.
Describe how tethering could be used to give the smart speaker access to the Internet. -
ANSWER-Tethering allows the smart speaker to use connectivity (e.g. Wi-Fi, USB) (1)
to share the connection to the internet provided by another
internet-connected device
Describe how the wireless router connects a mobile device to the network. - ANSWER--
the wireless router recieves signals sent by the mobile device.
-it assigns an IP address for the device
-it directs them to a network
Describe one benefit to the company of staff working from home. - ANSWER-May be
able to reduce office space by hot-desking
Explain how phishing attacks are carried out. - ANSWER-- Bogus emails are sent
asking for personal information
- Recipient who believes that the email is genuine enters the personal data
- This data is used for identity theft.
, Explain one other benefit of using open source software - ANSWER-- gives the user the
right to modify
- Its features can be adjusted to the needs of the user
Explain one other benefit to users of streaming music rather than downloading it. -
ANSWER-- Saves space on the device / more apps can be installed
- Can listen to it straight away because don't need to download the full file first
Explain two factors that she should consider before upgrading the operating system. -
ANSWER-1. Compatibility - will existing softwares need upgrading?
2. Training - she may need support to use the new OS
Explain why a smart speaker uses ROM. - ANSWER-- It stores instructions that do not
need to be changed
- ROM is non-volatile
Explain why the learning experience may be better on a course delivered face-to-face
rather than online. - ANSWER-1. The learner will not feel isolated
2. The learner will be more willing to ask questions
For what purpose is ROM used in home PC's or laptops? - ANSWER-To boot the
system and load the OS from the secondary storage
Give 2 solutions for backache - ANSWER-1. Use correct posture in chair
2. Use an ergonomic chair
Give 2 solutions for RSI - ANSWER-1. Use an ergonomic mouse
2. Use wrist pads
Give one benefit of using a biometric scanner to gain access to the rooms. - ANSWER-
Cannot be guessed
Give one possible drawback of using a biometric scanner to gain access to the rooms. -
ANSWER-System faliure
Give two other roles of a PC operating system. - ANSWER-1. File management
2. Memory management
Construct an expression to show how many bits are in 50 GB. - ANSWER-= 8 x 50 x
1024^3
Define "file access rights" - ANSWER-It limits access to files and what you can do with
the files
Define Bluetooth - ANSWER-Bluetooth is an unlicensed wireless connection method
which connects devices over a small range (up to 10m)
Define clock cycle per second - ANSWER-The number of times per second the
processor can carry out one or more instructions
Define cookies - ANSWER-Cookies are small files downloaded and stored which
records visits to a website; helps the website tailor subsequent visits to suit the
indivisual
Define copyright - ANSWER-a legal right that provides the creator of an original work
the sole authority to use and distribute it
Define Intranet - ANSWER-A network with a restricted access to be used by members
of a single organization which utilizes internet protocols.
Describe how tethering could be used to give the smart speaker access to the Internet. -
ANSWER-Tethering allows the smart speaker to use connectivity (e.g. Wi-Fi, USB) (1)
to share the connection to the internet provided by another
internet-connected device
Describe how the wireless router connects a mobile device to the network. - ANSWER--
the wireless router recieves signals sent by the mobile device.
-it assigns an IP address for the device
-it directs them to a network
Describe one benefit to the company of staff working from home. - ANSWER-May be
able to reduce office space by hot-desking
Explain how phishing attacks are carried out. - ANSWER-- Bogus emails are sent
asking for personal information
- Recipient who believes that the email is genuine enters the personal data
- This data is used for identity theft.
, Explain one other benefit of using open source software - ANSWER-- gives the user the
right to modify
- Its features can be adjusted to the needs of the user
Explain one other benefit to users of streaming music rather than downloading it. -
ANSWER-- Saves space on the device / more apps can be installed
- Can listen to it straight away because don't need to download the full file first
Explain two factors that she should consider before upgrading the operating system. -
ANSWER-1. Compatibility - will existing softwares need upgrading?
2. Training - she may need support to use the new OS
Explain why a smart speaker uses ROM. - ANSWER-- It stores instructions that do not
need to be changed
- ROM is non-volatile
Explain why the learning experience may be better on a course delivered face-to-face
rather than online. - ANSWER-1. The learner will not feel isolated
2. The learner will be more willing to ask questions
For what purpose is ROM used in home PC's or laptops? - ANSWER-To boot the
system and load the OS from the secondary storage
Give 2 solutions for backache - ANSWER-1. Use correct posture in chair
2. Use an ergonomic chair
Give 2 solutions for RSI - ANSWER-1. Use an ergonomic mouse
2. Use wrist pads
Give one benefit of using a biometric scanner to gain access to the rooms. - ANSWER-
Cannot be guessed
Give one possible drawback of using a biometric scanner to gain access to the rooms. -
ANSWER-System faliure
Give two other roles of a PC operating system. - ANSWER-1. File management
2. Memory management
