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Random Quiz
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Preguntas del test (11)
1What is a foreign key?
- AField used to link one data table with another
- BA key which can be used in any country
- CA primary key which must be unique.
2A crumb is half a byte (4 bits)
- AVerdadero
- BFalso
3What is the clock speed?
- AThe speed of your clock
- BThe 'beat' at which the computer works to.
4Clock speed is measured in gigahertz.
- AVerdadero
- BFalso
5Bus Topology is when
- AAll of the devices are connected to one cable which is called the backbone
- BThere is one wire which connects all the computers together and data flows in 1 direction only
- CThere is a central hub and a central server with a dedicated connection to each work station or device
6Advantages of Bus Topology are that
- AIf the line breaks then only one workstation will be affected
- BIt is cheap
- CNot many data collisions
- DQuick and easy to set up
- EThere is a limit no on cable length
7Disadvantages of Bus Topology are that you could get data collisions, there is a limit on cable length, it is not suitable for networks with heavy traffic and if there is a break in the backbone the whole network fails
- AVerdadero
- BFalso
8A nibble is [blank_start]4 bits[blank_end]
A megabyte is [blank_start]1,024 kilobytes[blank_end]
A crumb is [blank_start]2 bits[blank_end]
A gigabyte is [blank_start]1,024 megabytes[blank_end]
A byte is [blank_start]8 bits[blank_end]
A terabyte is [blank_start]1,024 gigabytes[blank_end]
A kilobyte is [blank_start]1,024 bytes[blank_end]- A4 bits
- B2 bits
- C8 bits
- D1,024 bytes
- E1,024 megabytes
- F1,024 kilobytes
- G4 bits
- H2 bits
- I8 bits
- J1,024 megabytes
- K1,024 kilobytes
- L1,024 terabytes
- M1,024 bits
- N8 bits
- O12 bits
- P1,024 megabytes
- Q1,024 terabytes
- R1,024 gigabytes
- S1,024 megabytes
- T1,024 bytes
- U1,024 gigabytes
9What does CPU stand for?
- ACentral Progressing Unit
- BCentral Processing Unit
- CCentral Programming Unit
10The CPU [blank_start]fetches information[blank_end], [blank_start]decodes[blank_end] and [blank_start]executes[blank_end] instructions.
- Afetches information
- Bdecodes
- Cexecutes
11The high speed memory attached to the CPU which we use to store data or instructions we use regularly to save processing time is called the what?
- ACore
- BRAM
- CCache
- DROM
Información
- Descripción
- GCSE Computing Test sobre Random Quiz, creado por Susanna Alsop el 28/09/2017.
- Autor
- Susanna Alsop
- Idioma
- English
- Visitas
- 17
- Etiquetas
- Valoración
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