CompTIA Updated FC0-U61 Exam Questions and Answers by amyra

 A foreign key is a column or a set of columns in a table that refers to the unique identifier (or primary key) in another table. A foreign key establishes a relationship between two tables and ensures referential integrity. For example, in a database that stores information about students and courses, the student table may have a column called student_id that is the primary key for each student record. The course table may have a column called student_id that is the foreign key that refers to the student_id in the student table. This way, the database can link each course record to the corresponding student record34. References := CompTIA IT Fundamentals (ITF+) Study Guide, 2nd Edition, Chapter 5: Database Fundamentals2; What is RDBMS (Relational Database Management System) - Javatpoint5; What is a Relational Database Management System? | Microsoft Azure6

A password is something you know, which can be used to create multifactor authentication when used with something you have, such as a hardware token or a smart card. Multifactor authentication is a security method that requires two or more factors of authentication to verify a user’s identity. Single sign-on is a feature that allows a user to access multiple applications or systems with one set of credentials, but it does not necessarily involve multifactor authentication. Geolocation is a feature that determines a user’s physical location based on GPS or other methods, but it does not necessarily involve multifactor authentication. References: The Official CompTIA IT Fundamentals (ITF+) Student Guide (Exam FC0-U61), Chapter 7: Security Concepts

The pseudocode given in the question is a program that assigns different values to the variable NAME based on the values of the variables TIME and DATE. The program starts by initializing the variables NAME, TIME, and DATE with empty strings, “NOON”, and “Monday” respectively. Then, it uses two nested IF-ELSE statements to check the values of TIME and DATE and modify the value of NAME accordingly. The first IF-ELSE statement checks if TIME is equal to “NOON”. If it is, it sets NAME to “foo”. If it is not, it checks if TIME is equal to “MIDNIGHT”. If it is, it sets NAME to “bar”. If it is not, it does nothing. The second IF-ELSE statement checks if DATE is equal to “Monday”. If it is, it concatenates “sad” to the end of NAME. If it is not, it checks if DATE is equal to “Friday”. If it is, it concatenates “happy” to the end of NAME. If it is not, it does nothing. Finally, the program prints the value of NAME. Since the values of TIME and DATE are “NOON” and “Monday” respectively, the program will set NAME to “foo” in the first IF-ELSE statement and then add “sad” to it in the second IF-ELSE statement. Therefore, the output of the program will be “foosad”. References: CompTIA IT Fundamentals (ITF+) Certification Guide, pages 216-217. Pseudocode - Designing an algorithm - KS3 Computer Science … - BBC.

 Ann’s IP-based security camera requires an Internet connection and a wireless router to function properly. The camera has an LED light indicating it has power, which means it is not malfunctioning due to the power interruption. However, the power interruption may have affected Ann’s Internet connection and wireless router, which are still down. This would prevent the camera from communicating with the network and the cloud service that stores the video footage. References : The Official CompTIA IT Fundamentals (ITF+) Study Guide (FC0-U61), page 178.