CompTIA SK0-005 - CompTIA Server+ Certification Exam

Comprehensive Detailed Explanation with all CompTIA Server+ SK0-005 Study Guide References:Scripting is commonly used to automate repetitive step-by-step tasks in server management, such as:

Automating system configurations.

Running maintenance jobs like backups or log file cleanup.

Performing administrative tasks like provisioning new users or setting permissions.

This automation improves efficiency and reduces the likelihood of human error. Referencing the SK0-005 guide, scripting is a best practice for simplifying tasks that involve consistent, repeatable processes.

Tailgating is a security breach where an unauthorized person follows an authorized individual into a secured area without proper credentials. To prevent tailgating, implementing an access control vestibule, also known as a mantrap, is highly effective.

An access control vestibule is a small room with two interlocking doors, where the first door must close and lock before the second door can be opened. This setup ensures that only one person can enter the secured area at a time, effectively preventing unauthorized individuals from gaining access by following someone else.

Other Options:

B. Cameras: While surveillance cameras can monitor and record entrances, they do not physically prevent tailgating. They serve as a deterrent and provide evidence after an incident has occurred but do not stop unauthorized entry in real-time.

C. Bollards: Bollards are physical barriers used to prevent vehicular access to certain areas. They are not effective in preventing unauthorized individuals from tailgating into a building or secured area.

D. Biometrics: Biometric systems (e.g., fingerprint or retina scanners) verify the identity of individuals but do not address the issue of someone following an authorized person through an open door. Without physical barriers like an access control vestibule, tailgating can still occur even with biometric systems in place.

Therefore, the most effective measure to prevent tailgating is the implementation of an access control vestibule.

RAID 6 is a RAID level that uses disk striping with two parity blocks distributed across all member disks. It can tolerate the failure of up to two disks without losing any data. RAID 6 can provide a minimum of 10TB of usable storage space with five 4TB disks, as the formula for calculating the RAID 6 capacity is (n-2) x Smin, where n is the number of disks and Smin is the smallest disk size. In this case, the RAID 6 capacity is (5-2) x 4TB = 12TB.

A Full Backup involves copying all data from a system, regardless of whether the data has changed since the last backup. This process ensures that a complete, standalone copy of all data is available, facilitating straightforward restoration without the need for additional backup sets.

Other Backup Types:

A. Incremental Backup: This method backs up only the data that has changed since the last backup of any type (full or incremental). While it is storage-efficient and has a faster backup time, restoration requires all incremental backups since the last full backup, making the recovery process more time-consuming.

B. Differential Backup: This approach backs up all data that has changed since the last full backup. It simplifies the restoration process compared to incremental backups, as only the last full backup and the latest differential backup are needed. However, it consumes more storage space and takes longer to perform as time progresses.

C. Archive: Archiving involves moving data that is no longer actively used to a separate storage system for long-term retention. It is not a backup type but a data management process aimed at freeing up primary storage space.

D. Snapshot: A snapshot captures the state of a system at a specific point in time. While it provides a quick way to restore a system to a previous state, it is typically stored on the same system and is not a substitute for a full backup.

In summary, the Full Backup is the only method that captures all data irrespective of changes, ensuring a comprehensive and independent data copy.

Scenario: Installing Windows on an 8TB drive, aiming for a single 8TB partition.

Solution: Use the GPT (GUID Partition Table) option (Option C):

GPT supports larger partitions (up to 18.4 million TB) compared to MBR (limited to 2TB).

VMFS, ZFS, and LVM are unrelated to the partitioning scheme in Windows.

Comprehensive Detailed Explanation with all CompTIA Server+ SK0-005 Study Guide References:ACrash cartis a physical console that can be connected directly to the server’s video output and keyboard/mouse ports. This is useful in situations where remote management (OOB) is unavailable, allowing the administrator to directly view the server's display and interact with the system during the reboot process.

IP KVM(Keyboard, Video, Mouse) is used for remote management, but the scenario specifically mentions no OOB management.

Virtual administration consoleandSerial connectionscan be used for remote management or console access, but since OOB management is unavailable, a physical crash cart is the appropriate choice.

A backdoor is a security risk that provides unauthorized access to an application. A backdoor is a hidden or undocumented way of bypassing the normal authentication or encryption mechanisms of an application, allowing an attacker to gain remote access, execute commands, or steal data. A backdoor can be created intentionally by the developer, maliciously by an attacker, or unintentionally by a programming error. References: CompTIA Server+ Certification Exam Objectives, Domain 5.0: Security, Objective 5.2: Given a scenario, apply logical access control methods.

A synthetic full backup is a backup method that describes copying only changed files each time it runs and using only a single file during a restore. A synthetic full backup is a backup approach that involves creating a new full backup by using the previous full backup and related incremental backups. This means that a backup solution does not have to transfer the full amount of data from the source machine and can synthetize the latest incremental backups with the last full backup to create a new full backup. This reduces the backup window and network bandwidth consumption. During a restore, only the latest synthetic full backup file is needed to recover the data. Open file backup is a backup method that allows backing up files that are in use or locked by applications. Full incremental backup is a backup method that involves performing a full backup first and then backing up only the changed files since the last backup. Full differential backup is a backup method that involves performing a full backup first and then backing up only the changed files since the last full backup. References: https://www.nakivo.com/blog/what-is-synthetic-backup/https://www.howtogeek.com/192115/what-you-need-to-know-about-creating-system-image-backups/