CompTIA Server+ SK0-005 CompTIA Study Notes

Bollards are an example of a method that is used to prevent motor vehicles from getting too close to building entrances and exits. Bollards are short, sturdy posts that are installed on sidewalks, parking lots, or roads to create physical barriers and control traffic flow. Bollards can be used to protect pedestrians, buildings, or other structures from vehicle collisions or attacks. Bollards can be made of various materials, such as metal, concrete, or plastic, and can be fixed, removable, or retractable.

The cluster feature that will allow Ann to complete her task is failback. A cluster is a group of servers that work together to provide high availability, scalability, and load balancing for applications or services. A cluster can have different nodes or members that have different roles or states. An active node is a node that is currently running an application or service and serving requests from clients. A passive node is a node that is on standby and ready to take over if the active node fails. A failover is a process of switching from a failed or unavailable node to another node in a cluster. A failback is a process of switching back from a failover node to the original node after it becomes available again. Failback can be automatic or manual depending on the cluster configuration.

If users cannot access a new server by name, but the server does respond to a ping request using its IP address, it means that there is a problem with name resolution. The DNS (Domain Name System) is a service that maps hostnames to IP addresses and vice versa. Therefore, the best step to perform next is to examine the DNS to see if the new server record exists and matches its IP address. If not, the DNS record needs to be added or updated accordingly. Running the tracert command from a workstation would not help with name resolution, as it only shows the route taken by packets to reach a destination by IP address. Correcting the missing DHCP scope would not help either, as DHCP (Dynamic Host Configuration Protocol) only assigns IP addresses and other network settings to clients, but does not resolve names. Updating the workstation hosts file would be a temporary workaround, but not a permanent solution, as it would require manually editing every workstation’s hosts file with the new server’s name and IP address. References:

The best policy to deter a brute-force login attack is account lockout threshold. A brute-force login attack is a type of attack that tries to guess a user’s password by trying different combinations of characters until it finds the correct one. This attack can be performed manually or with automated tools that use dictionaries, wordlists, or algorithms. An account lockout threshold is a policy that specifies how many failed login attempts are allowed before an account is locked out temporarily or permanently. This policy prevents an attacker from trying unlimited password guesses and reduces the chances of finding the correct password.