Year 13 - Revision quiz

Which of these is true about a passive data dictionary?

• It is part of the DBMS

• it has to be updated manually

• It is managed by the DBMS

• It is less flexible than active ones

Which of the following typically creates large data sets?

• Search Engines

• Hospitals

• Social Media Sites

• IoT

Which of the following are valid risks when working with large data sets?

• the data could be accessed by those without permission

• it takes time and resources to sort through large data sets

• large data sets may provide information that helps solve problems

• It costs a lot to store large datasets

Which of the following is NOT a feature of distributed systems?

• high velocity

• fault tolerance

• high availability

• concurrency

Which of these are true for unsupervised machine learning?

• Needs a labeled data set

• Finds identifying features

• Good for classification and regression

• Clusters data

In Agile methodology, what is a sprint?

• A long-term planning and goal-setting session

• A cycle of development in which a team works on a specific set of tasks

• A daily meeting to discuss their progress and challenges

• A review and retrospective meeting

Virtual machines run on a hypervisor while containers run on a ... ?

• container manager

• container engine

• kernel

• container box

Example of structured data

• audios

• webpages

• addresses

• videos

which of these is a requirement to be in first normal form?

• It is all in one table

• There is an assigned primary key

• There is redundancy

• There is no transitive dependency

Containers are faster than virtual machines. True or false?

• True

• False