ICT 2022 Flashcards
what are 2 reasons why is wifi a better choice than Bluetooth?
- higher bandwidth
- longer range
name 2 types of flash memory
- memory card
- SDDs
start up instructions are stored in which storage?
ROM
name 2 devices with embedded systems
- washing machines
- cameras
what is an OCR reader used for?
- scanning text
name 3 ways of identifying devices on a network
- MAC addresses
- IP addresses
- Device name
give 2 reasons why we identify devices on a network
- for security
- to share data with the correct device
state 2 ways a LAN is different from a WAN
- A LAN covers a smaller geographical area
- A LAN uses switches to connect devices, and a WAN uses a gateway to connect LANs
what is an adnvantage of connecting a printer to a network?
it saves money because each device doesnt need its own printer
describe high latency
increased in the time taken for data to be travelled between devices
why would an administrator use a network operating system to manage users?
only certain users can install and access data files because user permissions can be enforced
what is the term critical path?
the timeline of all dependant tasks
name 2 types of online services
- gaming sites
- online shopping sites
what is the role of cookies?
transaction tracking
describe 2 positive impacts on society of increased access to technology
- it gives power to individuals by allowing them to express their opinions
- improves education by giving people more access to materials and allowing them to collaborate
1 way an acceptable behaviour policy will benefit an online community
- helps users feel protected
Describe a feature of online communities to check if the acceptable behavior policy is followed
the posts can be check by filters to check if the content is appropriate
state a benefit of an employer using hosted applications and storage
the employer can ensure employees are working efficiently by monitoring them them through monitoring software
how does filter software work?
it checks words against a list of blocked keywords
2 features of a strong password
- a mixture of letters and numbers
- minimum of 8 characters
what is pharming?
when a website poses as an authentic and trustable website which misleads users to enter their personal information which can be misused
2 reasons why locally installed software is better for editing videos
- faster access times because all the data is stored on a local server directly in the device and data won’t have to travel across networks
- offline access because no need an internet connection and is on the local storage
what are the 2 purposes of communication software?
- exchange data
- send messages
why does systems software have to be updated regularly?
to improve security as new threats could be released
