SK0-005 Exam Dumps - CompTIA Server+ Certification Exam

When a server that previously received updates from a Windows Server Update Services (WSUS) server suddenly fails to do so, one common cause is that the local software firewall is blocking the necessary ports or services required for WSUS communication. Firewalls can be reconfigured, either intentionally or accidentally, leading to such connectivity issues.

A subscription license is a type of license that grants the user the right to use a product or service for a fixed period of time, usually a year. The user pays a recurring fee, regardless of how much they use the product or service. Subscription licenses are common for cloud-based software and services, such as Microsoft 3651 or DocuSign2.

References = 1: Compare All Microsoft 365 Plans (Formerly Office 365) - Microsoft Store(https://www.microsoft.com/en-us/microsoft-365/buy/compare-all-microsoft-365-products) 2: DocuSign Pricing | eSignature Plans for Personal & Business(https://ecom.docusign.com/plans-and-pricing/esignature)

The given output in the image indicates that the file is present, but the permissions may not allow it to be read. The output indicates '-rw-------', which means that the file is set to be readable and writable by the owner only, with no permissions for group or others. To allow the file to be read by users other than the owner, the file's permissions will need to be changed. Thechmod(change mode) command is used to change the file's permissions in Linux. For example,chmod 644 filewould change the permissions of the file to be readable by everyone and writable by the owner, which is typically what's required for a file server. It is always recommended to apply the least permissive settings that still allow the required operation to maintain security.

RAID 5 is a storage configuration that uses striping with parity, providing both improved performance and fault tolerance. It requires a minimum of three disks, where data and parity information are distributed across all drives. The storage capacity of a RAID 5 array is calculated as (N - 1) * S, where N is the number of drives, and S is the size of each drive.

Storage Requirements:

Initial Storage: 1TB

After 1 Year: Doubles to 2TB

After 2 Years: Doubles again to 4TB

To accommodate 4TB of data in a RAID 5 setup, we use the formula:

(N - 1) * 1TB ≥ 4TB

Solving for N:

N - 1 ≥ 4

N ≥ 5

Therefore, a minimum of 5 drives, each 1TB in size, is required to meet the projected storage needs. This configuration will provide a total usable capacity of 4TB, with 1TB allocated for parity to ensure fault tolerance.

A server has multiple fans inside the chassis to cool down the components and prevent overheating. If one of the fans fails, it can cause the server to reboot and crash due to thermal issues. A failed fan can also make loud noises due to friction or vibration. The administrator should check the fans and clean them from dust and debris, or replace them if they are damaged12.

References = 1: It’s Too Loud! 3 Solutions to Remedy Server Noise - Computerware Blog | DC Metro | Computerware Blog(https://www.cwit.com/blog/it-s-too-loud-3-solutions-to-remedy-server-noise) 2: What factors affect the noise level of a server? - Server Fault(https://serverfault.com/questions/430550/what-factors-affect-the-noise-level-of-a-server)

Asnapshotis a point-in-time image of a system's state that can be created while the system is running, without interrupting operations. Snapshots can be used to restore the entire system to the exact state at the time of the snapshot. They are commonly used in virtualized environments and allow administrators to roll back to a previous state if needed.

Snapshot (Answer A):Captures the entire system's state and can be taken without downtime.

Archive (Option B):Refers to long-term storage, not necessarily something that supports live backups.

Open file (Option C):Refers to a method that handles open files during backup but doesn’t provide full system restoration capabilities.

Differential (Option D):Backs up only the data changed since the last full backup but still requires a full backup for complete system restoration.

CompTIA Server+ Reference:This topic is related toSK0-005 Objective 4.1: Explain backup and recovery methods.

Comprehensive Detailed Explanation with all CompTIA Server+ SK0-005 Study Guide References:Blanking panelsare used to fill empty spaces in server racks. By blocking airflow gaps between servers, blanking panels help to direct airflow properly, ensuring that the cold air from the cold aisle is not wasted and that the hot air from the hot aisle is contained. This is crucial for maintaining the efficiency of cooling systems in a hot/cold aisle configuration.

Rack balancingaddresses the physical distribution of equipment, but it does not directly address thermal issues.

Higher-capacity PDUs(Power Distribution Units) provide more power, but they do not address cooling or airflow problems.

Rail kitsare used for mounting servers and are unrelated to cooling efficiency.