10593578
Description
Quiz by Susanna Alsop, updated more than 1 year ago
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Created by Susanna Alsop
about 7 years ago
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Question 1
Question
What is a foreign key?
Answer
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Field used to link one data table with another
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A key which can be used in any country
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A primary key which must be unique.
Question 2
Question
A crumb is half a byte (4 bits)
Answer
- True
- False
Question 3
Question
What is the clock speed?
Answer
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The speed of your clock
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The 'beat' at which the computer works to.
Question 4
Question
Clock speed is measured in gigahertz.
Answer
- True
- False
Question 5
Question
Bus Topology is when
Answer
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All of the devices are connected to one cable which is called the backbone
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There is one wire which connects all the computers together and data flows in 1 direction only
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There is a central hub and a central server with a dedicated connection to each work station or device
Question 6
Question
Advantages of Bus Topology are that
Answer
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If the line breaks then only one workstation will be affected
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It is cheap
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Not many data collisions
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Quick and easy to set up
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There is a limit no on cable length
Question 7
Question
Disadvantages 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
Answer
- True
- False
Question 8
Question
A 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]
Answer
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4 bits
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2 bits
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8 bits
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1,024 bytes
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1,024 megabytes
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1,024 kilobytes
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4 bits
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2 bits
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8 bits
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1,024 megabytes
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1,024 kilobytes
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1,024 terabytes
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1,024 bits
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8 bits
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12 bits
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1,024 megabytes
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1,024 terabytes
-
1,024 gigabytes
-
1,024 megabytes
-
1,024 bytes
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1,024 gigabytes
Question 9
Question
What does CPU stand for?
Answer
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Central Progressing Unit
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Central Processing Unit
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Central Programming Unit
Question 10
Question
The CPU [blank_start]fetches information[blank_end], [blank_start]decodes[blank_end] and [blank_start]executes[blank_end] instructions.
Answer
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fetches information
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decodes
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executes
Question 11
Question
The 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?
Answer
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Core
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RAM
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Cache
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ROM
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