FC0-U71 Sample Questions & Answers

While USB-C is a physical connector type, not all USB-C ports have the same capabilities. To transmit a high-resolution video signal like 4K, the USB-C port must support a feature called DisplayPort Alternate Mode or be a Thunderbolt port (which includes this functionality). If the port is a basic USB-C port for data and charging only, it may default to a lower-resolution video output or not work at all for video. Since the monitor, laptop, and cable all support 4K, the port's capability is the most likely bottleneck. The OS display settings could be a cause, but it's more probable that the hardware is the limiting factor.

Containers are the ideal choice for this scenario. They virtualize the operating system, allowing the application and its dependencies to be packaged together while sharing the kernel of the host OS. This results in significantly lower resource overhead, faster startup times (rapid deployment), and greater portability compared to VMs, which each require a full guest operating system. While VMs offer stronger isolation, the stated goals of speed and low overhead make containers the superior option.

This statement is false. A network switch operates at Layer 2 of the OSI model and is responsible for forwarding traffic between devices on the same local network. The device responsible for forwarding traffic between different networks (such as the local network and the internet) is a router, which operates at Layer 3.

This scenario describes Role-Based Access Control (RBAC). In RBAC, permissions are assigned to roles (or groups), and users are then assigned to those roles. The user inherits the permissions of the role. Here, the 'Marketing' group is the role, and it has a predefined set of permissions. This simplifies administration, as permissions are managed for the role, not for each individual user.

Cookies are small files websites use to store user-specific information, such as session data (shopping cart contents) and login status. Since the login is remembered but the cart is not, it points to a corrupted or problematic cookie for the shopping session. Clearing the cookies for only that specific site will force it to create a new session cookie, likely resolving the cart issue without affecting the login cookies for other websites. Clearing the cache would only affect stored static files like images and scripts. Clearing all cookies would log the user out of every site.

A compiled language is the best choice. The source code is translated directly into machine code, resulting in a single executable file that runs very fast and has low-level memory access. This meets the requirements for performance and a standalone executable. Scripting/interpreted languages like Python or JavaScript require an interpreter to be installed on the user's machine and are generally slower. A markup language like HTML is for structuring documents, not creating applications.

A conditional statement, such as an if/else block, is used to execute different blocks of code based on whether a condition is true or false. In this case, the condition is age >= 18. To process the entire list, this conditional would be placed inside a loop, but the decision-making part itself is the conditional.

The Waterfall methodology is a linear, sequential approach to software development. It is best suited for projects where requirements are well-understood, documented, and stable. Since the requirements are fixed and changes are unlikely, the structured, phase-by-phase nature of Waterfall (Requirements -> Design -> Implementation -> Testing -> Deployment) provides predictability in terms of schedule and budget. Agile and Scrum are iterative methodologies designed to accommodate changing requirements, which is not a primary concern here.

A primary key is a constraint in a relational database that uniquely identifies each record (row) in a table. By definition, a primary key column cannot contain NULL values and every value must be unique. This directly addresses the requirement to uniquely identify each customer and prevent duplicates. A foreign key is used to link two tables together. A unique constraint ensures uniqueness but allows one NULL value, and a check constraint validates data, but neither serves as the primary identifier.