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Which of the following BEST describes overprovisioning in a virtual server environment?
Answer: B
Correct Answer: B Systems administrators must ensure that the host server has enough physical hardware resources to meet the needs of the VMs. Therefore, the server is equipped with more hardware resources than the anticipated use requires.
Source: Adapted from community discussion — a792193
An administrator is alerted to a hardware failure in a mission-critical server. The alert states that two drives have failed. The administrator notes the drives are in different RAID 1 arrays, and both are hot-swappable. Which of the following steps will be the MOST efficient?
Answer: C
The most efficient step would be to replace both failed drives at the same time. This will allow for the quickest recovery time since both drives have failed and need to be replaced to restore data redundancy. Replacing one drive at a time, waiting for a rebuild, and then replacing the next drive will increase the risk of data loss if another drive fails during the rebuild process. Shutting down the server to replace the drives will result in extended downtime. Replacing all the drives in both degraded arrays is not necessary, as only the two failed drives need to be replaced.
Source: Adapted from community discussion — gingasaurusrex
A systems administrator is trying to determine why users in the human resources department cannot access an application server. The administrator reviews the application logs but does not see any attempts by the users to access the application. Which of the following is preventing the users from accessing the application server?
Answer: C
If the application logs do not show any attempts by users to access the application server, it is likely that some network-related issue is preventing users from accessing the server. Out of the options given, the most likely culprit is VLAN (Virtual Local Area Network).
Source: Adapted from community discussion — Mareo
Which of the following is an example of load balancing?
Answer: A
Active-Active is correct - Round Robin is a scheduler Active-active clusters use a load balancer device to distribute server requests between the nodes. This design provides high availability and also increases performance. The load balancer distributes the workload among the cluster nodes. There are many scheduling types for load balancers. Three of them are round robin, most recently used, and weighted scheduling
Source: Adapted from community discussion — jagoichi
An administrator discovers a Bash script file has the following permissions set in octal notation: 777 Which of the following is the MOST appropriate command to ensure only the root user can modify and execute the script?
Answer: A
A. chmod go-rwx "chmod" is the command used to change the file's mode bits. "go-rwx" specifies that both group (g) and others (o) should have read (r), write (w), and execute (x) permissions removed (-). This command removes the read, write, and execute permissions from both the group and others, leaving only the user (assuming the root is the owner) with the ability to read, write, and execute the script. This makes the script's permissions 700 in octal notation, ensuring that only the root user (assuming root owns the file) can modify and execute the script.
Source: Adapted from community discussion — surfuganda
A security technician generated a public/private key pair on a server. The technician needs to copy the key pair to another server on a different subnet. Which of the following is the MOST secure method to copy the keys?
Answer: C
C: SCP (Secure Copy Protocol). SCP (Secure Copy Protocol) is a secure method for transferring files between hosts on a network. It uses SSH (Secure Shell) for data transfer and provides encryption and authentication. This ensures that the keys are transferred securely without being intercepted or compromised.
Source: Adapted from community discussion — surfuganda
A server administrator purchased a single license key to use for all the new servers that will be imaged this year. Which of the following MOST likely refers to the licensing type that will be used?
Answer: D
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?
Answer: C
A. While editing the passwd file could reset the root password, it's prone to error and could potentially corrupt the system if not done correctly. B. Reinstalling the OS in overlay mode is unnecessary and involves reinstalling the entire operating system, which is very destructive and time-consuming for just resetting a password. ***C. Booting into single-user mode via GRUB and using the passwd command to reset the password is a standard method for resetting passwords on Linux systems. D. Using SCP to copy the /etc directory from a known accessible server to the mounted hard disk could overwrite crucial system files and potentially cause system instability or corruption.
Source: Adapted from community discussion — surfuganda
A technician noted the RAID hard drives were functional while troubleshooting a motherboard failure. The technician installed a spare motherboard with similar specifications and used the original components. Which of the following should the technician do to restore operations with minimal downtime?
Answer: C
A server administrator is trying to determine the cause of a slowdown on a database server. Upon investigation, the administrator determines the issue is in the storage subsystem. Which of the following will MOST likely resolve this issue?
Answer: A
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