In response to a security breach involving compromised credentials, one-time tokens provide an effective method to enhance authentication security. These tokens are part of multi-factor authentication (MFA) and generate unique codes for each login attempt, ensuring that even if credentials are stolen, unauthorized access is prevented.
Why One-time Tokens?
One-time tokens are dynamic and expire after a single use, significantly reducing the risk of unauthorized access even if usernames and passwords are compromised.
Often delivered through apps like Google Authenticator, hardware tokens, or SMS.
Incorrect Options:
A . Biometric authentication: While secure, it may not address all scenarios and requires additional hardware.
B . Peer-reviewed log-ins: Not a valid security measure.
C . Log-in scripts: Used for automating login configurations but do not enhance security directly.
CompTIA A+ Exam Objectives Reference:
220-1102 (Core 2), Section 2.1 and 2.2: Discuss security measures, including multi-factor authentication and one-time token implementations.

TPM stands for Trusted Platform Module, and it is a special chip installed on a computer's motherboard that stores encryption keys, passwords, and digital certificates. It can also securely store a user's PIN, allowing them to access the laptop without having to enter the PIN every time they log on. TPM is a secure way to store and protect sensitive data, making it ideal for use in laptops that need to securely store a PIN.

The cloud concept that should be used for migrating all common business applications, including email and fileshares, to the cloud is Software as a Service (SaaS).

DNS stands for Domain Name System, which is a network service that translates hostnames to IP addresses. Hostnames are human-readable names that identify devices or services on the Internet, such as www.google.com or mail.yahoo.com. IP addresses are numerical identifiers that specify the location of devices or services on the Internet, such as 172.217.14.206 or 98.137.11.163. DNS allows users to access websites or services by using hostnames instead of IP addresses, which are easier to remember and type. DNS also allows hostnames to change their IP addresses without affecting the users, which can improve performance and security.
Reference:
What is DNS? | How DNS Works | Cloudflare: This article explains the concept of DNS, its components, its functions, and its benefits.
Hostname vs. IP - address - Stack Overflow: This answer compares the differences between hostnames and IP addresses, and how DNS resolves them.
How DNS Works: Domain Name System(DNS): This article illustrates how DNS works with diagrams and examples.

Following corporate procedures would have been the most likely factor that could have prevented the technician from receiving the written warning. Following established procedures, such as change management, helps ensure that changes made to the production environment are thoroughly tested, approved, and implemented in a controlled and safe manner, reducing the risk of system-wide outages and other unintended consequences.