A technician is attempting to log in to a Linux server as root but cannot remember the administrator password. Which of the following is the LEAST destructive method of resetting the administrator password?

1. A. Boot using a Linux live CD and mount the hard disk to /mn
2. B. Change to the /mnt/etcdirector
3. C. Edit the passwd file found in that directory.
4. D. Reinstall the OS in overlay mod
5. E. Reset the root password from the install GUI screen.
6. F. Adjust the GRUB boot parameters to boot into single-user mod
7. G. Run passwd from the command prompt.
8. H. Boot using a Linux live CD and mount the hard disk to /mn
9. I. SCP the /etc directory from a known accessible server to /mnt/etc.

Correct Answer: C
This is the least destructive method of resetting the administrator password because it does not require modifying any files or reinstalling the OS. It only requires changing the boot parameters temporarily and running a command to change the password.References:https://wiki.archlinux.org/title/Reset_lost_root_password#Using_GR UB

A server technician notices a server is very low on disk space. Upon inspecting the disk utilization, the technician discovers server logs are taxing up a large amount of space. There is no central log server. Which of the following would help free up disk space?

1. A. Log rotation
2. B. Log shipping
3. C. Log alerting
4. D. Log analysis

Correct Answer: B
Log rotation is a process that periodically renames, compresses, and deletes old log files to free up disk space and keep log files manageable. Log rotation can be configured using tools such as logrotate or cron on Linux systems, or using Windows Task Scheduler or PowerShell scripts on Windows systems. Log rotation can also help with log analysis and troubleshooting by making it easier to find relevant information in smaller and more recent log files. References: https://www.mezmo.com/learn-log-management/what-is-log-rotation-how-does-it-workhttps://docs.microsoft.com/en-us/windows- server/administration/windows-commands/logman

A server administrator has been creating new VMs one by one. The administrator notices the system requirements are very similar, even with different applications. Which of the following would help the administrator accomplish this task in the SHORTEST amount of time and meet the system requirements?

1. A. Snapshot
2. B. Deduplication
3. C. System Restore
4. D. Template

Correct Answer: D
The method that would help the administrator accomplish the task of creating new VMs in the shortest amount of time and meet the system requirements is template. A template is a preconfigured virtual machine image that contains an operating system, applications, settings, and other components. A template can be used to create multiple identical or customized VMs quickly and easily, without having to install and configure each VM from scratch. A template can save time and ensure consistency across VMs.

A company is implementing a check-in desk to heighten physical security. Which of the following access controls would be the most appropriate to facilitate this implementation?

1. A. Security guards
2. B. Security cameras
3. C. Bollards
4. D. An access control vestibule

Correct Answer: D
An access control vestibule, or mantrap, is a type of physical access control that provides a space between two sets of interlocking doors. It is designed to prevent unauthorized individuals from following authorized individuals into facilities with controlled access, such as a check-in desk. The vestibule can be configured to limitthe number of individuals who enter the controlled area and to verify their authorization for physical access1. The other options are incorrect because they are not as effective as an access control vestibule in
facilitating the implementation of a check-in desk. Security guards, security cameras, and bollards are useful for monitoring, deterring, or preventing unauthorized access, but they do not provide the same level of control and verification as an access control vestibule

The network's IDS is giving multiple alerts that unauthorized traffic from a critical application server is being sent to a known-bad public IP address.
One of the alerts contains the following information: Exploit Alert
Attempted User Privilege Gain 2/2/07-3: 09:09 10.1.200.32
--> 208.206.12.9:80
This server application is part of a cluster in which two other servers are also servicing clients. The server administrator has verified the other servers are not sending out traffic to that public IP address. The IP address subnet of the application servers is 10.1.200.0/26. Which of the following should the administrator perform to ensure only authorized traffic is being sent from the application server and downtime is minimized? (Select two).

1. A. Disable all services on the affected application server.
2. B. Perform a vulnerability scan on all the servers within the cluster and patch accordingly.
3. C. Block access to 208.206.12.9 from all servers on the network.
4. D. Change the IP address of all the servers in the cluster to the 208.206.12.0/26 subnet.
5. E. Enable GPO to install an antivirus on all the servers and perform a weekly reboot.
6. F. Perform an antivirus scan on all servers within the cluster and reboot each server.

Correct Answer: BF
The administrator should perform an antivirus scan on all servers within the cluster and reboot each server, and block access to 208.206.12.9 from all servers on the network. These actions will help to remove any malware that may have infected the application server and prevent any further unauthorized traffic to the known-bad public IP address. An antivirus scan can detect and remove malicious software that may be sending data to an external source, and a reboot can clear any temporary files or processes that may be related to the malware. Blocking access to 208.206.12.9 from all servers on the network can prevent any future attempts to communicate with the malicious IP address.
References: CompTIA Server+ SK0-005 Certification Study Guide, Chapter 3, Lesson 3.4, Objective 3.4; Chapter 6, Lesson 6.2, Objective 6.2