A systems administrator is troubleshooting network performance issues in a large corporate office. The end users report that traffic to certain internal environments is not stable and often drops. Which of the following command-line tools can provide the most detailed information for investigating the issue further?
Correct Answer: D
Explanation Pathping is the best command-line tool to provide the most detailed information for investigating the network performance issue further. Pathping is a utility that combines the functions of ping and tracert, which are two other command-line tools that test network connectivity and latency. Pathping sends packets to each router on the path to a destination and then computes results based on the packets returned from each hop. Pathping can show the route taken by the packets, the number of hops, the latency of each hop, and the packet loss percentage. This information can help the systems administrator identify where the network problem occurs and how severe it is. Ipconfig, arp, and nslookup are not as useful as pathping for this task. Ipconfig shows the configuration of the network interface card, such as IP address, subnet mask, and default gateway. Arp shows the mapping of IP addresses to MAC addresses in the local network. Nslookup queries DNS servers for domain name resolution. References: Official CompTIA learning resources CompTIA A+ Core 1 and Core 2, page 21 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Cert Guide, page 457
Question 247
A technician requires graphical remote access to various Windows, Linux, and macOS desktops on the company LAN. The security administrator asks the technician to utilize a single software solution that does not require an external internet connection. Which of the following remote access tools is the technician most likely to install?
Correct Answer: A
Explanation VNC (Virtual Network Computing) is a remote access tool that allows the technician to access and control various Windows, Linux, and macOS desktops on the company LAN using a graphical user interface. VNC does not require an external internet connection, as it works over a local network or a VPN. VNC uses a client-server model, where the server runs on the remote desktop and the client connects to it from another device. VNC can transmit the keyboard and mouse events from the client to the server, and the screen updates from the server to the client, enabling the technician to interact with the remote desktop as if it were local12. VNC is a better option than the other choices because: RMM (Remote Monitoring and Management) (B) is not a single software solution, but a category of software solutions that enable IT professionals to remotely monitor, manage, and troubleshoot multiple devices and networks. RMM software may include remote access tools, but also other features such as patch management, backup and recovery, security, reporting, and automation. RMM software may require an external internet connection, as it often relies on cloud-based services or web-based consoles34. RDP (Remote Desktop Protocol) is a remote access tool that allows the technician to access and control Windows desktops on the company LAN using a graphical user interface. However, RDP is not compatible with Linux or macOS desktops, unless they have third-party software installed that can emulate or translate the RDP protocol. RDP also has some security and performance issues, such as encryption vulnerabilities, bandwidth consumption, and latency problems56. SSH (Secure Shell) (D) is a remote access tool that allows the technician to access and control various Windows, Linux, and macOS desktops on the company LAN using a command-line interface. SSH does not require an external internet connection, as it works over a local network or a VPN. SSH uses encryption and authentication to secure the communication between the client and the server. However, SSH does not provide a graphical user interface, which may limit the functionality and usability of the remote desktop7 . References: 1: What is VNC? - Definition from Techopedia1 2: How VNC Works - RealVNC2 3: What is Remote Monitoring and Management (RMM)? - Definition from Techopedia3 4: What is RMM Software? - NinjaRMM4 5: What is Remote Desktop Protocol (RDP)? - Definition from Techopedia5 6: Remote Desktop Protocol: What it is and how to secure it - CSO Online6 7: What is Secure Shell (SSH)? - Definition from Techopedia7 : How to Use SSH to Access a Remote Server in Linux or Windows - Hostinger Tutorials
Question 248
A user reports an issue when connecting a mobile device to Bluetooth. The user states the mobile device's Bluetooth is turned on. Which of the following steps should the technician take NEXT to resolve the issue?
Correct Answer: C
Explanation The first step in troubleshooting a Bluetooth connection issue is to check that the accessory is ready to pair with the mobile device. Some accessories may have a button or a switch that needs to be pressed or turned on to initiate pairing mode. If the accessory is not ready to pair, the mobile device will not be able to detect it.
Question 249
A new spam gateway was recently deployed at a small business However; users still occasionally receive spam. The management team is concerned that users will open the messages and potentially infect the network systems. Which of the following is the MOST effective method for dealing with this Issue?
Correct Answer: D
Explanation The most effective method for dealing with spam messages in a small business is to provide user training1 . Users should be trained to recognize spam messages and avoid opening them . They should also be trained to report spam messages to the IT department so that appropriate action can be taken1. In addition, users should be trained to avoid clicking on links or downloading attachments from unknown sources1. By providing user training, the management team can reduce the risk of users opening spam messages and potentially infecting the network systems1.
Question 250
A customer reported that a home PC with Windows 10 installed in the default configuration is having issues loading applications after a reboot occurred in the middle of the night. Which of the following is the FIRST step in troubleshooting?
Correct Answer: C
The first step in troubleshooting is to check for any installed patches and roll them back one at a time until the issue is resolved. This can help to identify any patches that may be causing the issue and allow them to be removed.
