SK0-005 Exam Dumps - CompTIA Server+ Questions and Answers

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.

Aloopis a programming construct used to repeat a block of code multiple times. In this case, if a function needs to run ten times, a loop (such as afor looporwhile loop) would be the appropriate choice.

Loop (Answer A):This allows the function to be executed repeatedly without writing redundant code.

Variable (Option B):A variable is used to store data, but it doesn’t handle repetition.

Comparator (Option C):Comparators are used to compare values, not for repeating code.

Conditional (Option D):Conditionals (if, else) are used for decision-making, not repeating actions multiple times.

CompTIA Server+ Reference:This topic is related toSK0-005 Objective 1.1: Understand basic scripting and automation concepts.

In RAID 10 arrays, disk performance is crucial, especially if they are high-speed 15K RPM SAS HDDs, as each disk in the array is part of a mirrored pair that also stripes data with another pair. When replacing a disk, it's essential that the new disk matches the specifications of the others, especially in terms of rotational speed (RPM). If the replaced disk is slower, it can significantly reduce the Input/Output operations per second (IOPS) of the entire array. This is because all disks need to work in tandem, and the slowest disk can become a bottleneck. Thus, checking the RPM of the newly replaced disk is a sensible first step to ensure it matches the performance of the other disks in the array.

To enable a user to both read and write to a file, the administrator needs to provide "modify" rights. This permission level allows the user not only to open and view the file (read) but also to make changes and save those changes back to the file (write). "Read and execute" rights would allow the user to open and run the file but not make any changes. "List folder contents" rights would enable the user to view the files within a folder but not make changes to them. "Full control" rights would provide the user with complete control over the file, including the ability to change permissions and delete the file, which exceeds the principle of least-privilege access necessary for this task.

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.

The server’s local storage is experiencing problems. Only two out of four drives are found, and an additional hard drive connects and disconnects randomly.

Likely Cause: The most probable cause is a faulty power supply (Option B). Here’s why:

When a power supply is failing or not providing sufficient power, it can lead to intermittent connectivity issues with drives.

Drives may not be recognized during boot or may disconnect randomly due to power fluctuations.

RAM, CPU, and cooling failures typically result in different symptoms (e.g., blue screens, system instability, or overheating), which do not match the described issue.

Asecurity guardis a human element in physical security, making them susceptible tosocial engineering attacks. Social engineering exploits human behavior, and a guard can be tricked into allowing unauthorized access through persuasion, manipulation, or deception.

Security guard (Answer A):Human elements are the most vulnerable to social engineering techniques like impersonation or manipulation.

Access control vestibule (Option B):This is a physical security barrier, which is harder to exploit through social engineering.

Perimeter fencing (Option C):This is a static physical barrier, not susceptible to social engineering.

Biometric locks (Option D):These rely on biological data and are not susceptible to social engineering in the same way a human would be.

Bollards (Option E):Physical barriers that are not vulnerable to social engineering.

CompTIA Server+ Reference:This topic relates toSK0-005 Objective 4.4: Implement physical security controls.

Awarm siteis a backup location that haspartial infrastructureready to support operations in the event of a failure at the primary site. It isalmost ready to take overbut requires some configuration or installation of data backups and software before it can become fully operational.

Warm site (Answer C):This site has the necessary equipment but requires some setup, making it a middle ground between cold and hot sites.

Basic technical facilities (Option A):This more accurately describes a cold site.

Faulty air conditioning (Option B):This is irrelevant to the definition of a warm site.

Fully operational (Option D):This describes ahot site, which is continuously ready to provide full services.

CompTIA Server+ Reference:This topic is related toSK0-005 Objective 4.1: Summarize disaster recovery methods and concepts.

Understanding different backup types is crucial for effective data protection strategies. Here's a breakdown of the relevant backup methods:

Full Backup: Captures all data, regardless of previous backups.

Differential Backup: Backs up data that has changed since the last full backup.

Incremental Backup: Backs up data that has changed since the last backup, whether it was full or incremental.

Snapshot: Captures the state of a system at a specific point in time.

A Differential Backup starts with a full backup. Subsequent differential backups save copies of all files that have been modified since that full backup. This means each differential backup includes all changes made since the last full backup, leading to larger backup sizes over time but faster restoration, as only the last full backup and the latest differential backup are needed.

In contrast, an Incremental Backup also begins with a full backup, but each subsequent backup only includes data that has changed since the most recent backup (whether full or incremental). This approach results in smaller backup sizes and quicker backup processes. However, restoration can be slower and more complex, as it requires the last full backup and all subsequent incremental backups to fully restore data.

Therefore, the correct answer is A. Differential, as it specifically refers to backing up files that have changed since the last full backup.

Off-site storage involves storing data backups in a physically separate location from where the servers and primary data reside. This protects critical data in case the main site is damaged or destroyed due to a natural disaster, such as floods, fires, or earthquakes. Off-site storage can be in the form of cloud storage or physical tapes stored in a geographically distant location.

Off-site storage (Answer A):It ensures that a company's critical data remains accessible even if the local infrastructure is compromised. This is a common part of disaster recovery planning and is crucial for business continuity.

Life-cycle management (Option B):While important for managing data from creation to deletion, it does not specifically protect data during disasters.

Environmental controls (Option C):These manage physical conditions like temperature and humidity but do not address the risk of data loss during disasters.

Data-at-rest encryption (Option D):Encryption protects the confidentiality of stored data but does not ensure availability in the event of a disaster.

CompTIA Server+ Reference:This topic is covered underSK0-005 Objective 4.1: Summarize disaster recovery methods and concepts.