Free FC0-U71 practice questions

Every computing task follows input, processing, output and storage: data comes in, is worked on, is presented, and is kept for later.

A keyboard is a classic input device: it captures what the user types and sends it to the computer. Output devices such as monitors present results, the processor does the processing, and drives provide storage.

1. Ask which direction the data moves at this device.
2. Keystrokes travel from the user into the computer.
3. Data entering the computer is input.

Exam tip: Data entering the computer is input; data presented to the user is output.

E-readers are single-purpose devices for reading digital books, built around an electronic-paper display.

The deciding needs are reading, no glare and weeks of battery life. An e-reader's electronic-paper display looks like printed paper, is readable in bright light and draws almost no power between page turns. Tablets and smartphones can read books too, but their backlit screens cause glare and drain the battery much faster; a laptop is heavier and also lasts only hours.

1. List the needs: reading only, glare-free, very long battery life.
2. Recall which portable device uses an electronic-paper display.
3. Check that the general-purpose devices (tablet, smartphone, laptop) all use backlit screens and need frequent charging.
4. Choose the e-reader.

Exam tip: Reading for weeks on one charge with no glare points to an e-reader and its E Ink screen.

An operating system (OS) is the software layer between applications and hardware.

The OS manages the computer's hardware (CPU time, memory, storage and devices) and provides services that applications use, so apps never drive the hardware directly. Power-on testing belongs to firmware, document editing to applications and remote file storage to cloud services.

1. Recall where the OS sits: between the user's applications and the hardware.
2. Match each option to the software that really does it: firmware, productivity app, cloud storage.
3. Choose the option that describes managing hardware for applications.

Exam tip: The OS is the middle layer: apps ask it, and it manages the hardware.

A compiled language is translated in full into machine code by a compiler before the program runs.

The deciding detail is that translation happens once, ahead of time, for the whole program. That is compilation. Interpreted code is translated at run time instead, and markup and query languages describe documents or request data rather than producing an executable program.

1. Note when the translation happens: once, before distribution.
2. Recall that a compiler converts all source code into machine code ahead of time.
3. Rule out interpreted code, which is translated as it runs.
4. Rule out markup and query languages, which do not produce executables.

Exam tip: Translated once, ahead of time, into an executable: compiled.

Data and information are business assets: they have value, so they are protected and managed like other assets.

When an organization puts a value on its data and spends money protecting it, it is treating data as an asset. Monetization is one way to get value from that asset (turning it into revenue), correlation is an analysis technique, and persistence is a database property.

1. Notice what the company does: values the data and budgets to protect it.
2. Ask which term describes that attitude rather than a technique or a storage feature.
3. Separate it from monetization, which requires earning revenue from the data.
4. Choose data as an asset.

Exam tip: Valued and protected like equipment: data is an asset.