| Date | November 2018 | Marks available | 2 | Reference code | 18N.1.HL.TZ0.1 |
| Level | HL | Paper | 1 | Time zone | no time zone |
| Command term | Describe | Question number | 1 | Adapted from | N/A |
Question
Outline what is meant by the term computer network.
Describe one problem resulting from low bandwidth in a computer network.
Markscheme
Award [1] for identifying the nature of a network and [1] for a development of the first point up to [2 max].
A group of computers and other computing hardware devices that are linked together through communication channels/cables/wirelessly;
To enable communication (sharing files, sharing information) between systems/among a wide range of users;
Award [1] for a definition of the term bandwidth and [1] for a description of an issue caused by low bandwidth up to [2 max].
Bandwidth indicates the maximum amount of data that can be transferred from one point to another in a unit of time;
Low bandwidth means slow network performance / extended duration when transferring large amounts of data / loss of users’ time (money) / the whole area (of the users) is not covered;
