OCR GCSE COMPUTER SCIENCE PAPER 1 TEST EXAM LATEST
2026 UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS
(2026/2027) |A+ GRADED |GUARANTEED PASS
what is bandwidth? - Answers -how much data can be sent in a second, higher it is faster the
data is transferred
what is latency? - Answers -the delay between a signal being sent and received
what are transmission errors? - Answers -how reliable packets are transmitted, noise and
distortion can cause data to be retransmitted
how does number of devices/users affect network performance? - Answers -maximum
bandwidth is shared between all connected devices so more devices = less everyone gets
how does transmission media affect network performance? - Answers -wifi results in slower
transfer speeds
how does interference affect network performance? - Answers -wireless and some wired
networks are prone to electromagnetic interference which can corrupt data
1|Page
,how do obstacles affect network performance? - Answers -such as thick brick walls, can prevent
radio waves from travelling
what is a WAN? - Answers -a collection of computers and networks (LANs) connected together
over a wide geographical area, connected using resources from a third party
how are WANs connected? - Answers -fibre optic cables, leased telephone lines, satellites,
radiowaves
pros of WANs? - Answers -allows workers to collaborate when far away, enables LANs to be
connected, enables data to be shared between LANs
cons of WANs? - Answers -expensive to hire bandwidth from telecom operator, cables can go
wrong, the organisation doesn't own the transmission media so is reliant on external suppliers
to fix issues
what is the internet? - Answers -the largest WAN, the name given to the infrastructure
what are three key elements of the internet? - Answers -DNS, hosting, the cloud
2|Page
,what is the world wide web? - Answers -a collection of web pages and protocols we access using
the internet
what is a domain name system? - Answers -keeps a directory of all the domain names along
with their IP address, so we don't have to remember the IP address to access a website, only
the domain name
what is hosting? - Answers -a host is a web server that hosts one or more websites, if a
computer has a number of web servers dedicated that hosts a number of different websites for
other companies, this is called hosting
what is the cloud? - Answers -the remote storage of data and software that we access using a
device connected to the internet, the data and software is stored in a remote location
advantages of the cloud? - Answers -no need to but additional hardware to store data and
software; no need to to employ technicians to maintain hardware; no need to worry about
backups; easy to access with an internet connection; no need to update software
disadvantages of the cloud? - Answers -relying on another to keep data safe and secure; no
internet connection = no access; cloud server can fail
what an ISP? - Answers -internet service provider; company that provides the internet access,
normally charges a monthly fee
3|Page
, what is an IP address? - Answers -made of a set of 4 number separated by a dot, can be static
(never changes) or dynamic (temporary and can change) each time a device accesses the
internet
what is a URL? - Answers -uniform resource locator; a unique address given to identify a website
what is a virtual network? - Answers -parting a larger physical network into a number of virtual
networks, by using software
why would a business want to make virtual networks? - Answers -to provide each department
with a separate network
pros of having virtual networks? - Answers -only need one physical network; each virtual
network can have its own level of security; bandwidth can be distributed differently across each
VLAN
what is a VLAN? - Answers -virtual area network; the part of the network that has been
partitioned off by the virtualisation software
4|Page
2026 UPDATED QUESTIONS AND VERIFIED 100% SOLUTIONS
(2026/2027) |A+ GRADED |GUARANTEED PASS
what is bandwidth? - Answers -how much data can be sent in a second, higher it is faster the
data is transferred
what is latency? - Answers -the delay between a signal being sent and received
what are transmission errors? - Answers -how reliable packets are transmitted, noise and
distortion can cause data to be retransmitted
how does number of devices/users affect network performance? - Answers -maximum
bandwidth is shared between all connected devices so more devices = less everyone gets
how does transmission media affect network performance? - Answers -wifi results in slower
transfer speeds
how does interference affect network performance? - Answers -wireless and some wired
networks are prone to electromagnetic interference which can corrupt data
1|Page
,how do obstacles affect network performance? - Answers -such as thick brick walls, can prevent
radio waves from travelling
what is a WAN? - Answers -a collection of computers and networks (LANs) connected together
over a wide geographical area, connected using resources from a third party
how are WANs connected? - Answers -fibre optic cables, leased telephone lines, satellites,
radiowaves
pros of WANs? - Answers -allows workers to collaborate when far away, enables LANs to be
connected, enables data to be shared between LANs
cons of WANs? - Answers -expensive to hire bandwidth from telecom operator, cables can go
wrong, the organisation doesn't own the transmission media so is reliant on external suppliers
to fix issues
what is the internet? - Answers -the largest WAN, the name given to the infrastructure
what are three key elements of the internet? - Answers -DNS, hosting, the cloud
2|Page
,what is the world wide web? - Answers -a collection of web pages and protocols we access using
the internet
what is a domain name system? - Answers -keeps a directory of all the domain names along
with their IP address, so we don't have to remember the IP address to access a website, only
the domain name
what is hosting? - Answers -a host is a web server that hosts one or more websites, if a
computer has a number of web servers dedicated that hosts a number of different websites for
other companies, this is called hosting
what is the cloud? - Answers -the remote storage of data and software that we access using a
device connected to the internet, the data and software is stored in a remote location
advantages of the cloud? - Answers -no need to but additional hardware to store data and
software; no need to to employ technicians to maintain hardware; no need to worry about
backups; easy to access with an internet connection; no need to update software
disadvantages of the cloud? - Answers -relying on another to keep data safe and secure; no
internet connection = no access; cloud server can fail
what an ISP? - Answers -internet service provider; company that provides the internet access,
normally charges a monthly fee
3|Page
, what is an IP address? - Answers -made of a set of 4 number separated by a dot, can be static
(never changes) or dynamic (temporary and can change) each time a device accesses the
internet
what is a URL? - Answers -uniform resource locator; a unique address given to identify a website
what is a virtual network? - Answers -parting a larger physical network into a number of virtual
networks, by using software
why would a business want to make virtual networks? - Answers -to provide each department
with a separate network
pros of having virtual networks? - Answers -only need one physical network; each virtual
network can have its own level of security; bandwidth can be distributed differently across each
VLAN
what is a VLAN? - Answers -virtual area network; the part of the network that has been
partitioned off by the virtualisation software
4|Page
