CompTIA Updated SK0-005 Exam Questions and Answers by nikolas

SSH (Secure Shell) is a protocol that would most likely be implemented to encrypt data in transit for remote administration. SSH provides secure communication between two devices over an unsecured network by using public-key cryptography and symmetric encryption. SSH can be used to remotely execute commands, transfer files, or tunnel other protocols. Telnet, TFTP, and rlogin are protocols that do not encrypt data in transit and are considered insecure for remote administration. References: [CompTIA Server+ Certification Exam Objectives], Domain 2.0: Networking, Objective 2.4: Given a scenario involving network security/access methods, implement an appropriate solution.

When new RAID controllers are installed and disks go missing, the first logical step is to reboot to the RAID controller BIOS and rescan for attached disks and arrays (Answer A). This will allow the RAID controller to detect the connected drives and rebuild the RAID configuration as expected.

Rebooting to RAID controller BIOS (Answer A): This step ensures that all the attached disks and arrays are properly detected and mapped to the RAID configuration.

Checking UEFI settings (Option B): This might be useful later, but initially, the RAID controller BIOS should be checked first to verify disk detection.

Turning off external arrays (Option C): While this could be helpful in some scenarios, it's not the most efficient first step.

Checking cables (Option D): This could be necessary, but since the controllers were just replaced, software/BIOS configurations should be checked first.

CompTIA Server+ Reference:This topic relates to SK0-005 Objective 3.1: Install and configure server components.

The next step to troubleshoot the issue after developing and testing a theory is to establish an action plan. This involves identifying the steps needed to implement the solution, estimating the time and resources required, and evaluating the potential risks and impacts of the solution. Documenting the findings and actions, escalating the issue to the management team, or implementing the solution are steps that should be done after establishing an action plan. References: [CompTIA Server+ Certification Exam Objectives], Domain 6.0: Disaster Recovery, Objective 6.2: Explain troubleshooting theory and methodologies.

A link aggregation group (LAG) is a technique that combines multiple physical network interfaces into a single logical interface. This allows for the distribution of traffic across all the interfaces in the group, increasing bandwidth and redundancy. A LAG can use different modes to balance the load, such as address hashing, dynamic, or most recently used algorithm.

References: CompTIA Server+ Study Guide, Chapter 6: Networking, page 239.