CompTIA SK0-005 Online Practice Questions and Exam Preparation

CompTIA SK0-005 Online Questions & Answers

• Question 161:

  A server administrator is tasked with resolving an issue with the server's local storage. The administrator turns on the server and only two out of the four drives are found. After several reboots, an additional hard drive connects and disconnects randomly.

  Which of the following is most likely the cause?

  A. RAM
  B. Power supply
  C. Cooling failure
  D. CPU
  B. Power supply

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  Explanation

  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).

  CompTIA Server+ Guide, Chapter 3: Hardware, Section 3.2.1 (Power Supply Units)

• Question 162:

  A server technician downloaded new firmware from the manufacturer's website. The technician then attempted to install the firmware on the server, but the installation failed, stating the file is potentially corrupt.

  Which of the following should the technician have checked prior to installing the firmware?

  A. DLP configuration
  B. MBR failure
  C. ECC support
  D. MD5 checksum
  D. MD5 checksum

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  Explanation

  A MD5 checksum is a value that is calculated from a file using a cryptographic hash function. A MD5 checksum is used to verify the integrity of a file by comparing it with the original value provided by the manufacturer or the source. If the MD5 checksums match, it means that the file is authentic and has not been corrupted or tampered with. If the MD5 checksums do not match, it means that the file is potentially corrupt or malicious and should not be installed12. A DLF configuration (A) is a setting that determines how a dynamic link library (DLL) is loaded into memory and executed by an application. A DLF configuration does not check the integrity of a file. A MBR failure (B) is a problem that occurs when the master boot record (MBR) of a disk is damaged or corrupted, preventing the system from booting. A MBR failure does not check the integrity of a file. ECC support ?is a feature that enables error-correcting code (ECC) memory to detect and correct data errors in RAM. ECC support does not check the integrity of a file.

  References: https://www.comparitech.com/net-admin/file-integrity-monitoring-tools/ https://csrc.nist.gov/CSRC/media/Presentations/Firmware-Integrity-Verification-Monitoring-and-Re/images-media/day2_demonstration_330-420.pdf

• Question 163:

  A critical server has stopped responding in a distant location where there are no remote technicians to check the condition of the server. Which of the following can assist in checking the condition of the server? (Choose two.)

  A. VNC
  B. Bootstrap protocol
  C. iDRAC
  D. Remote desktop protocol
  E. SSH
  F. ILO
  E. SSH
  F. ILO

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  Explanation

• Question 164:

  A technician installed a kernel upgrade to a Linux server. The server now crashes regularly. Which of the following is the MOST likely cause?

  A. Necessary dependencies were installed for multiple architectures.
  B. There is not enough hard drive space.
  C. The server is infected with a virus.
  D. Some modules are not compatible.
  D. Some modules are not compatible.

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  Explanation

• Question 165:

  Which of the following access control methodologies can be described BEST as allowing a user the least access based on the jobs the user needs to perform?

  A. Scope-based
  B. Role-based
  C. Location-based
  D. Rule-based
  B. Role-based

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  Explanation

  The access control methodology that can be described best as allowing a user the least access based on the jobs the user needs to perform is role-based access control (RBAC). RBAC is an access control method that assigns permissions to users based on their roles or functions within an organization. RBAC provides fine-grained and manageable access control by defining what actions each role can perform and what resources each role can access. RBAC follows the principle of least privilege, which means that users are only granted the minimum level of access required to perform their tasks. RBAC can reduce security risks, simplify administration, and enforce compliance policies.

• Question 166:

  An administrator is rebooting servers manually after a group of updates were deployed through SCCM. The administrator notices several of the servers did not receive the deployed update. Which of the following should the administrator review first?

  A. Confirm the server has the current OS updates and security patches installed.
  B. Confirm the server OS has a valid Active Directory account.
  C. Confirm the server does not have the firewall running.
  D. Confirm the server is in the collection scheduled to receive the update.
  D. Confirm the server is in the collection scheduled to receive the update.

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  Explanation

  The first thing the administrator should check is whether the server is in the collection that was scheduled to receive the update through SCCM. A collection is a group of resources, such as computers or users, that can be managed as a single entity by SCCM. If the server is not in the collection, it will not receive the update. The other options are less likely to be the cause of the problem, as they would affect other aspects of the server's functionality besides receiving updates.

  References: CompTIA Server+ Certification Exam Objectives, Domain 5.0: Security, Objective 5.4: Given a scenario, apply patches/updates and validate their installation.

• Question 167:

  A server technician is examining reports of system instability on an email server. The technician reviews the notes from a junior administrator and finds the following information:

  

  To determine the cause of the issue, which of the following actions should be taken FIRST?

  A. Review the system logs for errors.
  B. Swap the memory with a known-good pair.
  C. Restore the OS from a verified backup.
  D. Update the system with the latest chipset drivers.
  A. Review the system logs for errors.

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  Explanation

• Question 168:

  An administrator is sizing a new server that will run a 1TB database. One of the processor options is the size of the L2 cache. The administrator picks the processor with the least amount of L2 cache. Which of the following is an outcome of this selection?

  A. The processor will be faster with a lower L2 cache, speeding up database access times.
  B. The database will be slower because of a lower amount of cache hits.
  C. Database access does not rely on cache, so there will be no difference in performance.
  D. The cost of the processor will be higher.
  B. The database will be slower because of a lower amount of cache hits.

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  Explanation

• Question 169:

  While running a local network security scan, an administrator discovers communication between clients and one of the web servers is happening in cleartext. Company policy requires all communication to be encrypted. Which of the following ports should be closed to stop the cleartext communication?

  A. 21
  B. 22
  C. 443
  D. 3389
  A. 21

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  Explanation

• Question 170:

  Which of the following BEST describes overprovisioning in a virtual server environment?

  A. Committing more virtual resources to virtual machines than there are physical resources present
  B. Installing more physical hardware than is necessary to run the virtual environment to allow for future expansion
  C. Allowing a virtual machine to utilize more resources than are allocated to it based on the server load
  D. Ensuring there are enough physical resources to sustain the complete virtual environment in the event of a host failure
  A. Committing more virtual resources to virtual machines than there are physical resources present

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  Explanation

  This is the best definition of overprovisioning in a virtual server environment because it means allocating more CPU, memory, disk, or network resources to the virtual machines than what is actually available on the physical host. This can lead to performance issues and resource contention.

  References: https://www.hpe.com/us/en/insights/articles/10-virtualization-mistakes-everyone-makes-1808.html