CompTIA CV0-003 Online Access

Detailed Explanation:

B. Increase caching on the database server: Increasing caching reduces the need for repetitive queries to access disk storage, alleviating the IOPS bottleneck and improving overall performance.

References:

CompTIA Cloud+ CV0-003 Study Guide Chapter 12: Storage in Cloud Environments​​.

SHA-512 is a tool that can generate a cryptographic hash value for any given data. A cryptographic hash value is a fixed-length string of bits that uniquely and irreversibly represents the data. SHA-512 is one of the variants of the Secure Hash Algorithm 2 (SHA-2) family, which is a widely used and standardized hash function .

SHA-512 can help users to verify software integrity by comparing the hash values of the software before and after downloading, installing, or transferring. If the hash values match, it means that the software has not been altered, corrupted, or tampered with. If the hash values differ, it means that the software may have been compromised, infected, or damaged .

Containers are a solution that offers isolation, portability, and scalability for software development and deployment. Containers are lightweight and self-contained units of software that package up the application code and all its dependencies, such as libraries, frameworks, and configuration files. Containers run on a container platform, such as Docker or Kubernetes, that provides the runtime environment and orchestration for the containers.

Containers offer isolation, as they run independently from each other and from the underlying host system. Each container has its own namespace, filesystem, network, and resources, and does not interfere with other containers or processes. Containers also offer portability, as they can run on any system that supports the container platform, regardless of the hardware or operating system differences. Containers can be easily moved, copied, or deployed across different environments, such as development, testing, or production. Containers also offer scalability, as they can be dynamically created, destroyed, or replicated to meet the changing demand for the application. Containers can also leverage the distributed computing power of clusters, which are groups of servers that work together to provide high availability and performance .

The correct answer is C. NTP.

NTP stands for Network Time Protocol, which is a standard protocol for synchronizing the clocks of computers over a network. NTP uses a hierarchical, client-server architecture, where a client requests the current time from a server, and the server responds with a timestamp. The client then adjusts its own clock to match the server’s time, taking into account the network delay and clock drift. NTP can achieve sub-millisecond accuracy over local area networks and a few milliseconds over the internet12.

NTP can help maintain time synchronization between all the resources in a distributed cloud environment, as it allows each resource to get the accurate time from a reliable source. This can help with correlating logs, auditing, security, and other time-sensitive operations. NTP can also handle different time zones, as it uses Coordinated Universal Time (UTC) as the reference time, and each resource can convert UTC to its local time zone12.

DNS stands for Domain Name System, which is a protocol for resolving domain names into IP addresses. DNS does not provide any functionality for time synchronization3.

IPAM stands for IP Address Management, which is a method for planning, tracking, and managing the IP address space used in a network. IPAM does not provide any functionality for time synchronization.

SNMP stands for Simple Network Management Protocol, which is a protocol for collecting and organizing information about managed devices on a network. SNMP can be used to monitor the performance, availability, configuration, and security of network devices, but it does not provide any functionality for time synchronization.