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CompTIA 220-1101 (CompTIA A+ Certification Exam: Core 1) Certification Exam is a globally recognized certification that validates the skills required for entry-level IT professionals. 220-1101 exam is designed to test the knowledge and skills of individuals in computer hardware, software, and networking. CompTIA A+ Certification Exam: Core 1 certification is a strong foundation for a career in IT, and it is recognized by employers worldwide.

CompTIA A+ Certification Exam: Core 1 Sample Questions (Q52-Q57):

NEW QUESTION # 52
A technician made several upgrades to a computer and then determined the power supplied by the PSU is insufficient. Which of the following would MOST likely cause the insufficiency? (Select TWO).

A. Upgrading the graphics card
B. Replacing the HDD with an SSD
C. Adding an optical drive
D. Adding a CMOS battery
E. Upgrading the firmware
F. Adding more RAM

Answer: A,F

Explanation:
If a technician made several upgrades to a computer and then determined the power supplied by the PSU is insufficient, the upgraded graphics card and adding more RAM would most likely cause the insufficiency.
Upgrading the graphics card and adding more RAM can increase the power consumption of a computer, which can cause the power supplied by the PSU to be insufficient.
Adding more RAM and upgrading the graphics card are the most likely causes of the insufficiency of power supplied by the PSU. These upgrades require more power to operate efficiently and can cause the PSU to become insufficient.

NEW QUESTION # 53
Which of the following twisted pair cables supports 10GBASE-T data transmission speed?

A. Cat 6a
B. Cat 5e
C. Cat 5
D. Cat 3

Answer: A

Explanation:
Explanation
The correct answer is D. Cat 6a.
Cat 6a (augmented) is a type of twisted pair cable that supports 10GBASE-T data transmission speed.
10GBASE-T is an Ethernet standard that can deliver 10 gigabits per second (Gbps) over copper cables. Cat 6a can support this speed up to a distance of 100 meters, which is the same as Cat 5e and Cat 6 for lower speeds.
Cat 6a has better shielding and crosstalk prevention than Cat 6, which makes it more suitable for high-frequency signals.
Cat 3, Cat 5, and Cat 5e are not capable of supporting 10GBASE-T data transmission speed. Cat 3 can only support up to 10 Mbps, Cat 5 can only support up to 100 Mbps, and Cat 5e can only support up to 1 Gbps.
These cables have lower bandwidth, higher attenuation, and more interference than Cat 6a.
Reference: Network Cables - CompTIA A+ 220-1101 - 3.1 - Professor Messer IT Certification Training Courses

NEW QUESTION # 54
A technician is using a PAN to connect a group of users on a field project. Which of the following services should the technician activate on the mobile device to share the internet data connection?

A. Tethering
B. Pairing
C. Hotspot
D. Bluetooth

Answer: A

Explanation:
The correct answer is A. Tethering.
Tethering is the process of sharing a mobile device's internet data connection with other devices, such as laptops, tablets, or other phones. Tethering can be done by using a Wi-Fi hotspot, a Bluetooth connection, or a USB cable. A Wi-Fi hotspot creates a wireless network that other devices can join, a Bluetooth connection pairs the devices and allows data transfer, and a USB cable connects the devices physically and enables data sharing.
A PAN, or personal area network, is a type of network that connects devices within a short range, usually up to
10 meters. A PAN can be used for various purposes, such as transferring files, printing documents, or accessing the internet. A PAN can be created by using Bluetooth, Wi-Fi, or infrared technologies.
A technician can use a PAN to connect a group of users on a field project by using tethering on a mobile device. The technician can activate the tethering service on the mobile device and choose the preferred method of sharing the internet data connection. The other devices can then connect to the mobile device and access the internet through it.
The other options are incorrect because they are not services that can share the internet data connection on a mobile device. Pairing is the process of establishing a connection between two Bluetooth devices, but it does not necessarily share the internet data connection. Bluetooth is a technology that can create a PAN and enable tethering, but it is not a service that can be activated on a mobile device. Hotspot is a term that can refer to a Wi-Fi hotspot created by tethering on a mobile device, but it is not a service that can be activated on its own.
References:
Share a mobile connection by hotspot or tethering on Android
How to share a mobile connection by tethering or hotspot on Android
How to Share Mobile Internet to PC or Other devices

NEW QUESTION # 55
Which of the following protocols can be used to securely access a remote network to troubleshoot various devices?

A. RDP
B. SSH
C. FTP
D. TFTP

Answer: B

Explanation:
Secure Shell (SSH) is a protocol used to securely access and manage devices over a network. It provides a secure channel over an unsecured network in a client-server architecture, enabling technicians to perform troubleshooting and management tasks remotely with encryption to ensure the security of the data transmitted.
FTP and TFTP are used for file transfers and do not inherently provide the same level of security or direct device management capabilities. RDP is used for remote desktop connections but is not as universally applicable for various devices as SSH.
References:
* CompTIA A+ Core 1 Exam Objectives Section 2.1: Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

NEW QUESTION # 56
Which of the following technologies can be used to harden guest virtual machines?

A. vTPM
B. Resource reservation
C. Network isolation
D. Containerization

Answer: A

Explanation:
A virtual Trusted Platform Module (vTPM) is a technology that can be used to harden guest virtual machines by providing them with a secure cryptographic device. A vTPM can store encryption keys, certificates, and passwords, and can perform integrity checks on the guest operating system and applications. A vTPM can also enable features such as BitLocker and Credential Guard in Windows 10 virtual machines.
A: Containerization is a technology that can be used to isolate applications from the underlying operating system and hardware resources. Containerization does not directly harden guest virtual machines, but rather provides a lightweight alternative to virtualization.
B: Network isolation is a technology that can be used to separate network traffic between different virtual machines or groups of virtual machines. Network isolation can help prevent unauthorized access or attacks on guest virtual machines, but it does not harden them internally.
C: Resource reservation is a technology that can be used to guarantee a minimum amount of CPU, memory, disk, or network resources for a virtual machine or a group of virtual machines. Resource reservation can help improve the performance and availability of guest virtual machines, but it does not harden them against security threats.
D: vTPM is a technology that can be used to harden guest virtual machines by providing them with a secure cryptographic device. A vTPM can store encryption keys, certificates, and passwords, and can perform integrity checks on the guest operating system and applications.
Reference: CompTIA A+ Core 1 (220-1101) Certification Study Guide, page 3161.

NEW QUESTION # 57
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