Strengthen your knowledge of computer fundamentals, hardware, software, programming, networks, databases and information technology.
Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.
Which search algorithm explores all nodes one level at a time before moving to the next level?
What is the function of the CPU's ALU?
Which device amplifies and regenerates signals over long distances?
Which device connects multiple networks together?
Which of the following best describes an e-commerce website?
Why are Headers and Footers added to a document in MS Word?
What is the purpose of a foreign key?
What is the worst-case time complexity of bubble sort?
What is the purpose of an operating system's file manager?
What is the function of a kernel in an operating system?
What is the default port number for HTTP?
What is the main function of a compiler?
What does 'CSS' stand for in web development?
What is the purpose of the 'GROUP BY' clause in SQL?
Which memory type is most commonly used to store firmware in embedded systems?
Which of the following is a high-level programming language?
What is the function of an assembler?
Which of the following is an example of an open-source operating system?
Which normal form eliminates transitive dependencies?
Which data structure uses FIFO order?