A user is trying to play a DVD on a projector. The user can hear the audio; however, the projector is showing an error message that states:
HDMI Blocked due to Copy Protection
Which of the following is the MOST likely cause of the error?
Answer : C
The Official CompTIA A+ Core 1 and Core 2 Student Guide (Exams 220-1001 and 220-1002) | 193 Protected content. If you encounter an error that indicates unauthorized content or an HDCP error: * DVI, HDMI, DisplayPort, and Thunderbolt all provide support for the Digital Rights Management (DRM) mechanism High-bandwidth Digital Content Protection (HDCP). HDCP allows a content source (such as a Blu-ray disc) to disable itself if the display adapter and monitor and/or speaker system do not support HDCP and fail to authenticate themselves with the playback source. There have been various iterations of HDCP (at time of writing the current version is 2.2) and backward-compatibility can be problematic as authentication may fail between devices that support different versions of the standard.
A technician who works in a high-security environment needs to set up a laptop with triple monitors for a new security employee. All USB ports are disabled due to security policies. Which of the following should the technician do to BEST meet the requirements?
Answer : D
This is because a docking station can connect multiple monitors to a laptop without using USB ports, which are disabled in this scenario. A splitter cable would only allow two monitors to be connected, not three. A discrete graphics card would require opening the laptop and installing hardware, which may not be feasible or allowed in a high-security environment. An HDMI switch would only allow one monitor to be active at a time, not all three simultaneously.
Some users are unable to access resources on the file server. A technician reviews the server network information and finds the following settings:
Which of the following is the most likely explanation?
Answer : B
Given the network information for the server ''InternalToolCentral'' with an IP address of ''192.130.230.5'' and a subnet mask of ''255.255.255.0'', the gateway address should be within the same network range. However, the gateway address is listed as ''192.130.230.1'', which is correct and within the same subnet. Therefore, the issue is not with the gateway settings.
The DNS servers are listed as ''8.8.8.8'' and ''4.2.2.1'', which are public DNS servers and should be able to resolve domain names correctly if they are reachable.
The open ports listed include 25 (SMTP), 80 (HTTP), 110 (POP3), 443 (HTTPS), and 3306 (MySQL), which are standard ports for their respective services.
Considering the provided options and the network settings, the most likely explanation for users being unable to access resources on the file server is: A. Applicable ports have been closed during routine hardening. This could prevent users from connecting to the necessary services on the file server.
Networking best practices and troubleshooting steps as covered in the CompTIA A+ certification materials.
Understanding of network configurations and services related to file server accessibility.
Which of the following describes the difference between a DNS server and a DHCP server?
Answer : A
DNS stands for Domain Name System, and it is a network service that translates human-readable names (such as www.google.com) into numerical IP addresses (such as 172.217.14.206) that identify the location of the web servers on the internet. DNS also allows reverse lookup, which means finding the domain name associated with a given IP address.DNS servers are responsible for maintaining a database of domain names and their corresponding IP addresses, and responding to queries from clients who want to resolve a name to an address or vice versa12.
DHCP stands for Dynamic Host Configuration Protocol, and it is a network service that automatically assigns IP addresses and other network configuration parameters (such as subnet mask, default gateway, DNS server, etc.) to devices that join a network. DHCP servers are responsible for managing a pool of IP addresses and leasing them to clients for a specified duration.DHCP servers also renew or release the IP addresses when the lease expires or the client disconnects from the network34.
The difference between DNS and DHCP is that DNS is used for address translation, which means converting domain names to IP addresses and vice versa, while DHCP is used for IP address assignment, which means providing IP addresses and other network settings to devices that need to communicate on a network.
DNS Configuration -- CompTIA A+ 220-1101 -- 2.6
DHCP Configuration - CompTIA A+ 220-1101 - 2.6 - Professor Messer IT Certification Training Courses
CompTIA A+ 220-1101 -- 2.6 - Professor Messer IT Certification ...
Courses for CompTIA A+: 220-1101: CompTIA A+ (Core 1) - Skillsoft
A user reports that when pressing a radio button on a tablet, an item a couple of inches to the right of the pressed button gets selected instead. Which of the
following components may need to be replaced?
Answer : C
A digitizer is a component that converts the touch input on a tablet screen into digital signals that can be processed by the device. A digitizer consists of a thin layer of transparent material that covers the glass screen and has sensors that detect the position and pressure of the touch. If the digitizer is damaged, misaligned, or poorly calibrated, it can cause inaccurate touch input, such as selecting the wrong item or not responding at all12. Therefore, the most likely cause of the issue in this scenario is a faulty digitizer that may need to be replaced. The other components are not directly related to the touch input functionality of the tablet. A gyroscope is a sensor that measures the orientation and rotation of the device3. A battery is a power source that supplies electricity to the device4. A glass is a protective layer that covers the screen and prevents scratches and cracks5.
Reference
1: What is a Digitizer? - Definition from Techopedia
2: How to Fix a Broken Digitizer on a Tablet | Chron.com
3: What is a Gyroscope Sensor in Mobile Phones? - Definition from Techopedia
4: What is a Battery? - Definition from Techopedia
5: What is Glass? - Definition from Techopedia
Which of the following environments can be set up to keep any device from communicating with a virtual machine over the network?
Answer : C
A sandbox environment is designed to isolate and contain software or programs, preventing them from interacting with other parts of the system or network. This isolation can be used to safely run untested or untrusted programs or code without risking the integrity of the host system or network. Setting up a virtual machine within a sandbox environment ensures that the VM has no communication with other devices over the network, providing a controlled and secure environment for testing or development purposes.
CompTIA A+ Core 1 (220-1101) Exam Objectives, particularly the sections on virtualization and cloud computing, which may cover the concept of sandboxing as a form of virtualization used for security and testing.
Understanding of virtualization technologies and security practices, including the use of sandbox environments to contain and limit the potential impact of untrusted or experimental software.
Which of the following cloud models provides hardware environment equivalent components to develop a solution?
Answer : B
Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, including virtualized hardware, storage, and networking components. It offers the infrastructure on which clients can install their operating systems and applications, providing an equivalent to physical hardware environments. This allows developers and businesses to develop and run their solutions without managing physical servers. SaaS delivers software applications over the internet, PaaS provides a platform allowing customers to develop, run, and manage applications, and DBaaS offers database services in the cloud.
CompTIA A+ Core 1 Exam Objectives Section 4.1: Summarize cloud computing concepts.