Past paper May 2023 Flashcards
What does SCSI stand for?
Small Computer System Interface
A protocol for attaching external devices to a computer system, such as a printer.
What does high latency mean?
The large delay in time it takes for signals to arrive at their destination
What is not a characteristic of freeware software?
Distributed with the source code accessible
Characteristics of a freeware software:
Freely available to download and use
Used to encourage users to try the software and then purchase the full version
What is an example of a business software?
CAD/CAM
Used to design and construct products. Workers such as manufactures and dentists use this
Which type of computer does not use the standard binary system?
Quantum
In the development stage but will have faster process data and perform calculations faster than the normal computers
What is an advantage of using messaging software?
Adv:
It is cost effective compared to making a telephone call
Encourage effective communication- encourages short, concise messages
Works in real time
Mobile- can be used on both desktop and mobile devices with messages being synced across devices
Takes place in private between two users
Dis:
Distraction-employees will stop what they are doing to read and respond to a message as it appears
Can have security issues with malicious users exploiting software vulnerable to gain unauthorised access to computer systems
Compatibility issues-not all users use the same issue
Archiving is not always available or, if it is, not simple to use
Which protocol is used to distribute data on the World Wide Web?
HTTP (Hyper Text Transfer Protocol)
A protocol that transfers web pages over the internet
Which servers role is to respond to a clients request over the internet?
Web
Manages HTTP request from connected devices to display web pages on web browsers.
A request is sent to the web server
The server finds the matching IP address and finds the known URLS from the list
The server then contacts the client and sends the web page over the web browser and holds down the server when doing this
Which connectivity method is not used when using a Wide Area Network (WAN)?
PSTN (Public Switched Telephone Network)
The global collection of wired public telephone networks that are used to transmit data over large distances
Which type of satellite is used to transfer data between remote locations?
Geostationary
Which type of written communication method should they used to make sure that their boss knows that they have contacted the customers?
Email
Adv
Send information to may people at once
Can include attachments, such as documents and videos
Dis
Important messages can be lost in the spam folder
Phishing scams may spread viruses, via email attachment
Which technical skill is requires by a web designer?
CSS coding
Describe the purpose of a hard drive and motherboard
Hard Drive:
To store data
Motherboard:
To connect internal components on a computer together
Identify and describe one connectivity method that can be used to connect the computers in each shop to each other and the internet
Method: LAN
Description: Connecting devices together in close proximity
Explain two reasons why the software may have frozen
Too may tabs were open, as the internet was not strong enough
Software error, with insufficient error handling
Using binary system, calculate the number of bits in 1 mebi
1024 bytes X 1024 kibibytes= 1 mebi
1 mebi=1,048,576 bits
Mebi=2 ^20 bits
Identify and describe two benefits of using a database to keep records of the stocks
Separate tables for different products
Less data redundancy, meaning there is less chance of errors happening
Describe two ways the IT consultant can demonstrate they are ready for work at the first meeting
Appearance, wearing appropriate clothing for the first meeting
Personal grooming, to demonstrate a good first impression
Discuss the benefits and drawbacks to Lars Model Railways of using a leased line connection
Adv:
Closed/ private connection is not affected by others
Faster upload speed
Connection not variable at peak times
Know the capacity available
Dis:
Higher cost of installation
Higher cost of monthly charge
Not available straight away- installation time
Complex configuration
Draw a line from each protocol to the correct layer of the TCP-IP protocol stack
IP Transport Layer
UDP Internet Layer
ICMP Application Layer
SNMP Network Layer
IP Internet Layer
UDP Transport Layer
ICMP Network Layer
SNMP Application Layer
Select the advantages and disadvantages of using virtual storage
Adv
Reduces the amount of physical storage required
Time taken for taking backups of the system is reduced
Allows costs to be better predicted for the business
Easier to secure and encrypt
Dis
Increases the links of data access
Correcting problem can be difficult
Identify and describe one advantage of using an applications server
Separates data from applications so that the data is more secure as it reduces the chances of data being deleted
Application Server-Allows users to access shared resources on a network but will also restrict applications to those with invalid access levels
Discuss the threats that having an online store could cause and digital security measures to mitigate them
Virus, Anti virus
Hackers, Username and passwords
Phishing, Anti spyware
Interception of data, encryption
Explain one action that needs to be taken by Lars Model Railway to conform the legislation
Comply the legalisation (DPA or GDPR) as they need to store data securely by using security measures such as firewall, anti-virus
Data Protection Act 2018 (DPA)
General Data Protection Regulation (GDPR)
