Cloud Computing and Linux Quiz

What is cloud computing?

• On-premise infrastructure hosting

• Virtualized infrastructure hosting

• On-demand, pay-per-use computing resources

• Physical server management

What is the default shell used in most Linux distributions?

• Zsh

• Csh

• Bash

• Fish

Which of the following is a package manager for Debian-based Linux distributions?

• apt

• yum

• dnf

• rpm

What does the sudo command allow a user to do in Linux?

• Shutdown the system

• Run commands with root privileges

• Schedule tasks

• Create a new user

Which of the following command is used to view the content of a file in Linux?

• cat

• rm

• cp

• mv

Which of the following commands is used to display the current working directory?

• whoami

• ls

• pwd

• echo

What does the DISTINCT keyword do in an SQL query?

• Returns all records

• Returns only unique values

• Deletes duplicate records

• Sorts the records in descending order

Which of the following SQL commands is used to change existing data in a table?

• INSERT

• SELECT

• UPDATE

• DROP

Which of the following SQL commands can be used to change a column's data type in a table?

• MODIFY TABLE

• CHANGE TYPE

• ALTER TABLE

• UPDATE TABLE

In SQL, what is a self join?

• Joining two tables with the same data

• A join that combines rows from the same table

• A join that automatically matches on all columns

• A join that uses a subquery