CompTIA SK0-005 Online Practice Questions and Exam Preparation

CompTIA SK0-005 Online Questions & Answers

• Question 351:

  A systems administrator is performing maintenance on 12 Windows servers that are in different racks at a large datacenter. Which of the following would allow the administrator to perform maintenance on all 12 servers without having to physically be at each server? (Choose two.)

  A. Remote desktop
  B. IP KVM
  C. A console connection
  D. A virtual administration console
  E. Remote drive access
  F. A crash cart
  A. Remote desktop
  B. IP KVM

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  Explanation

  The methods that would allow the administrator to perform maintenance on all 12 servers without having to physically be at each server are remote desktop and IP KVM. Remote desktop is a feature that allows a user to access and control another computer over a network using a graphical user interface (GUI). Remote desktop can enable remote administration, troubleshooting, and maintenance of servers without requiring physical presence at the server location. IP KVM (Internet Protocol Keyboard Video Mouse) is a device that allows a user to access and control multiple servers over a network using a single keyboard, monitor, and mouse. IP KVM can provide remote access to servers regardless of their operating system or power state, and can also support virtual media and serial console functions.

  https://www.blackbox.be/en-be/page/27559/Resources/Technical-Resources/Black-Box-Explains/kvm/Benefits-of-using-KVM-over-IP

• Question 352:

  A server technician is procuring and installing a single-phase rack PDU that will meet the following requirements:

  Maximum line current per phase: 30A Rate current per phase: 24A Maximum current draw: 6 x 16A Nominal voltage: 208V

  Based on these requirements, which of the following can be implied regarding load capacity?

  A. Purchase a PDU with a minimum load capacity of 2kVA.
  B. Purchase a PDU with a minimum load capacity of 3kVA.
  C. Purchase a PDU with a minimum load capacity of 4kVA.
  D. Purchase a PDU with a minimum load capacity of 5kVA.
  D. Purchase a PDU with a minimum load capacity of 5kVA.

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  Explanation

• Question 353:

  A new Windows server has been introduced to the network. The server administrator is trying to connect remotely to the server but is unsuccessful. Basic troubleshooting shows the server is visible on the network. Which of the following should be configured on the server to be able to connect remotely? (Choose two.)

  A. Remote desktop connection
  B. Remote procedure call
  C. Remote assistance
  D. Port 443
  E. Port 3389
  F. Port 5900
  A. Remote desktop connection
  E. Port 3389

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  Explanation

• Question 354:

  A senior administrator instructs a technician to run the following script on a Linux server: for i in {1..65536}; do echo $i; telnet localhost $i; done The script mostly returns the following message: Connection refused. However, there are several entries in the console display that look like this:

  1.Connected to localhost

  2.Connected to localhost

  Which of the following actions should the technician perform NEXT?

  A. Look for an unauthorized HTTP service on this server.
  B. Look for a virus infection on this server.
  C. Look for an unauthorized Telnet service on this server.
  D. Look for an unauthorized port scanning service on this server.
  A. Look for an unauthorized HTTP service on this server.

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  Explanation

  The script that the technician is running is trying to connect to every port on the localhost (the same machine) using telnet, a network protocol that allows remote access to a command-line interface. The script mostly fails because most ports are closed or not listening for connections. However, the script succeeds on ports 80 and 443, which are the default ports for HTTP and HTTPS protocols, respectively. These protocols are used for web services and web browsers. Therefore, the technician should look for an unauthorized HTTP service on this server, as it may indicate a security breach or a misconfiguration. Looking for a virus infection on this server is also possible, but not the most likely source of the issue. Looking for an unauthorized Telnet service on this server is not relevant, as the script is using telnet as a client, not a server. Looking for an unauthorized port scanning service on this server is not relevant, as the script is scanning ports on the localhost, not on other machines.

  References: https://phoenixnap.com/kb/telnet-windows https://www.techopedia.com/definition/23337/http-port-80 https://www.techopedia.com/definition/23336/https-port-443

• Question 355:

  A new 40GB NIC has just been installed in a server but is not detected within the Windows server OS. Which of the following would most likely fix the issue?

  A. Update the firmware on the NIC.
  B. Update the server OS.
  C. Update the remote management console.
  D. Update the switch firmware.
  A. Update the firmware on the NIC.

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  Explanation

  Updating the firmware on the NIC is the most likely solution to fix the issue of a new 40GB NIC not being detected within the Windows server OS. Firmware is a softwareprogram that controls the functionality of a hardware device, such as a NIC (network interface card). A NIC is a device that enables network communication for a server by providing an interface between the server and the network cable or wireless connection. Updating the firmware on the NIC can improve its performance, compatibility, and stability with the server OS and network protocols.

  References: CompTIAServer+ Certification Exam Objectives, Domain 4.0: Networking, Objective 4.1: Given a scenario, configure network settings for servers.

• Question 356:

  A user has been unable to authenticate to the company's external, web-based database after clicking a link in an email that required the user to change the account password. Which of the following steps should the company take next?

  A. Disable the user's account and inform the security team.
  B. Create a new log-in to the external database.
  C. Ask the user to use the link again to reset the password.
  D. Reset the user's password and ask the user to log in again.
  A. Disable the user's account and inform the security team.

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  Explanation

• Question 357:

  A server administrator is completing an OS installation for a new server. The administrator patches the server with the latest vendor-suggested software, configures DHCP, and verifies all network cables are properly connected in the IDF, but there is no network connectivity. Which of the following is the MOST likely reason for the lack of connectivity?

  A. The VLAN Is improperly configured.
  B. The DNS configuration Is invalid.
  C. The OS version is not compatible with the network switch vendor.
  D. The HIDS is preventing the connection.
  A. The VLAN Is improperly configured.

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  Explanation

  If the server administrator patches the server with the latest vendor- suggested software, configures DHCP, and verifies all network cables are properly connected in the IDF, but there is no network connectivity, then the most likely reason for the lack of connectivity is that the VLAN is improperly configured. A VLAN (Virtual Local Area Network) is a logical grouping of network devices that share the same broadcast domain and can communicate with each other without routing. If the server is assigned to a different VLAN than the DHCP server or the default gateway, it will not be able to obtain an IP address or reach other network devices. The DNS configuration is not relevant for network connectivity, as DNS only

  resolves names to IP addresses. The OS version is not likely to be incompatible with the network switch vendor, as most network switches use standard protocols and interfaces. The HIDS (Host-based Intrusion Detection System) is not likely

  to prevent the connection, as HIDS only monitors and alerts on suspicious activities on the host.

  References:

  https://www.howtogeek.com/190014/virtualization-basics-understanding-techniques-and-fundamentals/

  https://www.howtogeek.com/164981/how-to-use-nslookup-to-check-domain-name-information-in-microsoft-windows/

  https://www.howtogeek.com/202794/what-is-an-intrusion-detection-system-ids-and-how-does-it-work/

• Question 358:

  A server administrator receives the following output when trying to ping a local host:

  

  Which of the following is MOST likely the issue?

  A. Firewall
  B. DHCP
  C. DNS
  D. VLAN
  A. Firewall

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  Explanation

  A firewall is a network device or software that filters and controls the incoming and outgoing traffic based on predefined rules. A firewall can block or allow certain types of packets, ports, protocols, or IP addresses. The output of the ping command shows that the local host is unreachable, which means that there is no network connectivity between the source and the destination. This could be caused by a firewall that is blocking the ICMP (Internet Control Message Protocol) packets that ping uses to test the connectivity.

  References: https://www.comptia.org/training/resources/exam-objectives/comptia-server-sk0-005-exam-objectives (Objective 2.2)

• Question 359:

  A server administrator has configured a web server. Which of the following does the administrator need to install to make the website trusted?

  A. PKI
  B. SSL
  C. LDAP
  D. DNS
  B. SSL

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  Explanation

• Question 360:

  Which of the following is the MOST appropriate scripting language to use for a logon script for a Linux box?

  A. VBS
  B. Shell
  C. Java
  D. PowerShell
  E. Batch
  B. Shell

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  Explanation

  Shell is the most appropriate scripting language to use for a logon script for a Linux box. Shell is a generic term for a command-line interpreter that allows users to interact with the operating system by typing commands and executing scripts. Shell scripts are files that contain a series of commands and instructions that can be executed by a shell. Shell scripts are commonly used for automating tasks, such as logon scripts that run when a user logs on to a system. There are different types of shells available for Linux systems, such as Bash, Ksh, Zsh, etc., but they all share a similar syntax and functionality.