Quiz Text For Mastering Laptop Hardware - Objective 1.1

Objective / Module 1.1 Laptop Hardware: CompTIA A+ Core 1

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Question 1:

What is the module format for a stick of SODIMM DDR4 RAM?

A) 1.8-inch

B) 204-pin

C) 260-pin

D) 2.5-inch

Explanation: The correct answer is C. DDR4 SODIMM modules have 260 pins. DDR3 is 204-pin. 1.8-inch is the size associated with smaller storage drives used in some laptops. 2.5-inch is the standard size for SSD storage drives.

Question 2:

You just added a second memory module to a laptop. However, after rebooting the system, the OS reports the same amount of memory as before. What should you do next?

A) Replace both memory modules.

B) Run Windows Update.

C) Replace the motherboard.

D) Reseat the laptop memory.

Explanation: Correct Answer is D. The next step you should take is to reseat the memory. SODIMMs can be a bit tricky to install. They must be firmly installed, but you don’t want to press too hard and damage any components. If the laptop worked fine before the upgrade, you shouldn’t have to replace the modules or the motherboard. Windows Update will not find additional RAM.

Question 3:

Which of the following are ways that a laptop can communicate with other computers? (wireless & short range 10m)

A) Bluetooth

B) WLAN

C) DC jack

D) Cellular WAN

Explanation: The correct answer is A. Computers can communicate with other computers using Bluetooth, WLAN, and DC jack. But for short ranges up to 33 feet (10 meters), Bluetooth is used. We can also use WLAN but the range of wireless local area networks is more than Bluetooth.

Question 4:

Which of the following are possible reasons that a laptop’s keyboard might fail completely?

A) A key is stuck.

B) A ribbon cable is disconnected.

C) Keys are dusty.

D) The keyboard was disabled in the Device Manager.

Explanation: The correct Answer is B. A laptop’s keyboard could fail due to a disconnected or loose keyboard ribbon cable. One stuck key will not cause the entire keyboard to fail, and on most laptops, the keyboard cannot be disabled in the Device Manager. It can be uninstalled but not disabled.

Question 5:

A user doesn’t see anything on his laptop’s screen. He tries to use AC power and thinks that the laptop is not receiving any. Which of the following are two possible reasons for this? (Select the two best answers.)

A) He is using an incorrect AC adapter or is not connected to the laptop.

B) The display is not working.

C) Windows won’t boot.

D) The battery is dead.

Explanation: The correct Answer is A. An incorrect adapter will usually not power a laptop. The adapter used must be exact. And, of course, if the laptop is not properly plugged into the adapter, it won’t get power. Windows doesn’t play into this scenario. If the battery were dead, it could cause the laptop to fail to power up, but only if the AC adapter were also disconnected; the scenario states that the user is trying to use AC power.

Question 6:

One of your customers reports that she walked away from her laptop for 30 minutes, and when she returned, the display was very dim. She increased the brightness setting and moved the mouse but to no effect. What should you do first?

A) Replace the LCD screen.

B) Check the operating system for corruption.

C) Connect an external monitor to verify that the video card works.

D) Check whether the laptop is now on battery power.

Explanation: The correct answer is D. It could be that the laptop is now on battery power and is set to a dimmer display and shorter sleep configuration while on battery. The laptop may not be getting AC power from the AC outlet for some reason. The battery power setting is the first thing you should check; afterward, start troubleshooting the AC adapter, cable, AC outlet, and so on. It’s too early to try replacing the display; try not to replace something until you have ruled out all other possibilities. A dim screen is not caused by OS corruption. There’s no need to plug in an external monitor; you know the video adapter is working, it’s just dim.

Question 7:

You are helping a customer with a laptop issue. The customer says that two days ago the laptop was accidentally dropped while it was charging. You observe that the laptop will not turn on and that it is connected to the correct power adapter. Which of the following is the most likely cause?

A) The battery

B) The power adapter

C) The storage drive

D) The DC jack

E) The BIOS/UEFI

Explanation: The correct answer is D. The DC jack was probably damaged when the laptop was dropped. It may have been plugged in (charging) and fallen on the plug that connects to the DC jack (which is easily damaged on many laptops). The customer probably used the laptop until the battery became discharged before noticing that the laptop wouldn’t take charge anymore—and now it won’t turn on at all. So the battery is probably not the issue. A power adapter can be damaged, but the DC-in jack is more easily damaged. The storage drive and the BIOS/UEFI normally will not affect whether the laptop will turn on.

Question 8:

You want to reduce the risk of your laptop being stolen. Which of the following is the best option?

A) Incorporate biometrics

B) Disable NFC

C) Use a cable lock

D) Enable MFA

Explanation: The correct Answer is C. To best reduce the chance of theft, use a cable lock. This is a physical cable that can be wrapped around a sturdy object and locked to the laptop, keeping it relatively secure from theft. Incorporating biometrics means implementing a thumbprint scan or other physical characteristic scan into the authentication process. Disabling NFC means that near-field communications will be turned off, and data can’t be “beamed” to other devices. Enabling MFA means that you are implementing multi-factor authentication —for example, combining a password and biometrics. While none of the incorrect answers can reduce the risk of a laptop being stolen, they do decrease the chance of data being stolen.

Question 9:

A user cannot make contactless payments using NFC, connect to the Internet, or send/receive calls from their mobile device. The user can boot the device and sign on. Which of the following is most likely the cause of the problem?

A) Failed power-down state

B) Airplane mode

C) Biometric authentication

D) ESD has occurred

Explanation: The correct answer is B. Turning on airplane mode (the most likely cause of the problem) will disable wireless transmissions, including NFC. This is great for security purposes, but it can also disable the ability to connect to Wi-Fi networks or send/receive calls. A failed power state would render the entire device unusable; however, the question says the user was able to boot and sign on to the device. Biometric authentication is most likely not the cause of the problem in this scenario because the user is not having problems signing on to the device. Electrostatic discharge (ESD) can occur when two objects with different voltages come into contact with each other. ESD can wreak havoc with electronic components, but it is not the most likely problem here because the device appears to be working normally in all other regards—plus it’s somewhat uncommon for mobile devices.

Question 10:

Which of the following are ways that a laptop can communicate with other computers? (wireless up to 30m)

A) Bluetooth

B) WLAN

C) DC jack

D) Cellular WAN

Explanation: The correct Answer is B. For communication between computers up to 30m, you can use a Wireless Local Area Network (WLAN). The range of WLAN is more than Bluetooth and up to 30 meters.

Question 11:

To speed up a laptop, you have a request from a client for the following upgrades: upgrade RAM to 8GB and replace the existing 500GB hard disk with a 1TB SSD. Which of the following should you do FIRST before you can quote a price and timeframe for this job?

A) Price comparison for SATA and NVMe 1TB SSD.

B) Identify the location of the drive bay.

C) Review the contents of the service manual.

D) Determine the amount and size of memory modules already installed.

Explanation: The correct Answer is C. The third suggested answer, reviewing the contents of the service manual, is the best. It should come first because it provides most of the information needed to properly cost out parts and labor for this job. For example, knowing the amount of effort needed to expose the memory slots and the drive bay helps determine labor charges. The type(s) of SSD drives the system supports (M.2 or 2.5-inch, NVMe or SATA) help provide a basis for cost-benefit storage calculations. Finally, the sizes and speeds of supported memory modules help determine whether the onboard memory can be retained or must be replaced.

Question 12:

During the laptop RAM upgrade process (goal: 8GB per system), you determine that some of the computers have 2x2GB SODIMM RAM modules for a total of 4GB onboard, while others have 1x4GB SODIMM RAM modules for a total of 4GB onboard. All systems have two SODIMM sockets. All of the 4GB memory and 2GB memory have the same form factor (DDR3 SODIMM) and timing. There are 10 systems with 1x4GB modules and 20 systems with 2x2GB modules. Which of the following purchases will provide 8GB of identical RAM per system without considering spares?

A) Buy 30 1x4GB modules.

B) Buy 50 1x4GB modules.

C) Buy 60 1x4GB modules.

D) Buy 10 1x4GB modules.

Explanation: The correct Answer is B. The suggested answer is to buy 50 1x4GB modules. They will be distributed thusly: 10 will be installed in the systems that currently have 1x4GB modules, bringing them from 4GB installed to 8GB installed. All of the 2x2GB RAM modules will be removed from the 20 systems using this type of RAM. Each system will have 2x4GB of RAM installed in its place, bringing them from 4GB installed to 8GB installed. Forty modules are used for this portion of the upgrade. Thus, all 50 modules will be used, making this the correct answer.

Question 13:

Which of the following are components you might find inside a PC?

A) CPU, Cable modem, and Printer.

B) Motherboard, RAM, and Keyboard.

C) RAM, CPU, and Motherboard.

D) Printer, Keyboard, and Cable modem.

Explanation: The correct answer is C. CPU (Central Processing Unit): This is the "brain" of the computer, responsible for processing information and instructions.
RAM (Random Access Memory): This is the computer's short-term memory, used to store data that the CPU needs to access quickly.
Motherboard: This is the main circuit board that connects all the components of the computer together. It serves as the backbone of the system.
Options A, B, and D include components that are external to the computer case or not essential for its basic operation. A cable modem is a device used for internet connection, a printer is an output device, and a keyboard is an input device. While important for computer use, they are not internal components of the PC itself.

Question 14:

Which device retains data over the long term?

A) CPU.

B) RAM.

C) Storage Drive.

D) Video Card.

Explanation: Correct Answer is C. Storage drive (such as a hard disk drive or solid-state drive) is specifically designed to retain data over long periods, even when the computer is turned off. It's where your operating system, applications, and files are stored.
CPU is the brain of the computer, processing information but not storing it permanently. RAM is the computer's short-term memory and loses its data when the power is turned off. The video card is responsible for processing and displaying images, not for long-term data storage.

Question 15:

You are researching options for adding a hard drive to your laptop. You want speed, but price is a consideration. Which of these is the middle-of-the-road option for speed and price?

A) HDD.

B) SSHD.

C) SSD.

D) OLED.

Explanation: The correct answer is B. SSHD (Solid State Hybrid Drive) offers a middle ground between speed and price. It combines the speed benefits of an SSD by storing frequently accessed data on a small flash memory component. It also provides the large storage capacity of an HDD for storing less frequently used data. HDDs are slower and cheaper, while SSDs are faster but more expensive.

Question 16:

Which of these are generally accessed through the bottom of a laptop?

A) Battery.

B) Wireless Adapter.

C) SODIMM RAM.

d) SSHD.

E) All

Explanation: The correct answer is E.
Battery: Most laptops have their batteries accessible from the bottom panel for easy replacement or charging.
SODIMM RAM: This type of RAM is commonly installed or upgraded by removing the bottom panel of a laptop.
SSHD (Solid State Hybrid Drive): Many laptops have their storage drive, whether it's an SSHD or an SSD, accessible from the bottom for replacement or upgrade.
Wireless adapters and other components are typically internal and not accessible without advanced disassembly. But you can find it there.

Question 17:

What is the primary difference between DDR3 and DDR4 RAM in terms of power consumption?

A) DDR3 uses a higher voltage than DDR4.

B) DDR4 uses a higher voltage than DDR3.

C) Both DDR3 and DDR4 use the same voltage.

D) DDR3 has lower latency than DDR4, leading to higher power consumption.

E) DDR4 has lower latency than DDR3, leading to higher power consumption.

Explanation: The correct answer is A. DDR3 uses a higher voltage than DDR4. DDR3 RAM typically operates at a higher voltage (around 1.5V) compared to DDR4 RAM, which usually operates at 1.2V. The lower voltage of DDR4 results in reduced power consumption, which is particularly beneficial in devices like laptops where power efficiency is critical. The other options either reverse this relationship or confuse voltage with latency, which is a separate factor.

Question 18:

Which generation of SODIMM RAM was the first to offer capacities beyond 64GB?

A) DDR1 SODIMM RAM.

B) DDR2 SODIMM RAM.

C) DDR3 SODIMM RAM.

D) DDR4 SODIMM RAM.

E) DDR5 SODIMM RAM.

Explanation: The correct answer is E. DDR5 SODIMM RAM.

Name: DDR5 SODIMM RAM.
Generation: Generation 5.
Speed: 1600-3200 MHz.
Voltage: 1.1 V.
Capacity: Up to 128GB (and beyond).
Pin Count: 262 Pins.
Used In: Latest laptops, notebooks, and small form factors PCs (2020-present).

Question 19:

The following are the properties of which RAM Generation.

Speed: 400-800 MHz.

Power: 1.5 V.

Max Single Stick is: Up to 16GB.

Pin Count: 204 Pins.

A) DDR1 SODIMM RAM.

B) DDR2 SODIMM RAM.

C) DDR3 SODIMM RAM.

D) DDR4 SODIMM RAM.

E) DDR5 SODIMM RAM.

Explanation: The correct Answer is C.

Name: DDR3 SODIMM RAM.
Generation: Generation 3.
Speed: 400-800 MHz.
Voltage: 1.5 V.
Capacity: Up to 16GB.
Pin Count: 204 Pins.
Used In: Laptops, notebooks, and small form factor PCs (2010-2015).

Question 20:

What is the most important step to start the migration process from HDD to SSD?

A) Copy all the data from HDD to SSD.

B) Purchase the SSD and SSD case.

C) Installation of Operating System (OS) in SSD.

D) Backup the complete data of HDD.

Explanation: Correct Answer is D. Backup the complete data of HDD. Suppose your data that you copied to SSD is lost due to any SSD problem. You format your data from HDD or the HDD is corrupted. In this case, Backup of your data will help you to recover your whole data.

Question 21:

A technician is troubleshooting a laptop that intermittently fails to boot. The technician suspects a hardware issue. Which component is most likely causing the issue and how can the technician isolate the problem?

A) Hard drive, by running diagnostic software.

B) RAM, by researing the modules.

C) Power adapter, by testing with a different adapter.

D) Motherboard, by replacing the CMOS batter.

Explanation: The correct answer is A. Hard drive, by running diagnostic software. Intermittent boot failures are often indicative of hard drive issues. Running diagnostic software can help pinpoint the problem, such as bad sectors or failing components.

Question 22:

A user complains of slow performance on their laptop. The technician identifies that the laptop is overheating. Which component is most likely causing this issue, and what is the best solution?

A) CPU, by undervolting the processor.

B) Thermal paste, by reapplying it.

C) Hard drive, by defragmenting the drive.

D) Video card, by updating the graphics driver.

Explanation: The correct answer is B. Thermal paste, by reapplying it. Overheating is commonly caused by inadequate heat dissipation. Reapplying thermal paste ensures efficient heat transfer between the CPU and the heatsink.

Question 23:

A technician is upgrading the RAM in a laptop. After installing the new RAM, the laptop fails to boot. What is the most likely cause of the issue, and how can it be resolved?

A) Incompatible RAM, by checking the manufacturer's specifications.

B) Incorrect RAM voltage, by adjusting the BIOS settings.

C) Faulty RAM module, by testing each module individually.

D) Improper RAM installation, by reseating the RAM modules.

Explanation: The correct answer is C. Faulty RAM module, by testing each module individually. If a laptop fails to boot after RAM installation, the most likely culprit is a faulty RAM module. Testing each module individually can isolate the problem.

Question 24:

A user complains that their laptop keyboard is not working properly. Several keys are unresponsive. What is the most likely solution to this problem?

A) Update the keyboard drivers.

B) Replace the entire keyboard.

C) Clean the keyboard thoroughly.

D) Reinstall the operating system.

Explanation: The correct answer is B. Replace the entire keyboard. If multiple keys are unresponsive, it is highly likely that the keyboard itself is faulty and needs to be replaced. Updating drivers, cleaning, or reinstalling the OS would not resolve a hardware issue with the keyboard.

Question 25:

You need to upgrade the RAM in a laptop. Which of the following is the most important factor to consider when selecting new RAM modules?

A) The laptop's processor speed.

B) The laptop's operating system.

C) The laptop's existing RAM type and speed.

D) The laptop's hard drive capacity.

Explanation: The correct Answer is C. The laptop's existing RAM type and speed. RAM modules must be compatible with the laptop's existing RAM in terms of type (DDR3, DDR4, etc.) and speed. Choosing incompatible RAM will prevent the laptop from booting or operating correctly.

Question 26:

A technician needs to replace the hard drive in a laptop with a solid-state drive (SSD). Which of the following is the most important consideration during the migration process?

A) Ensuring the SSD has the same form factor as the HDD.

B) Backing up all data before the migration.

C) Cloning the HDD to the SSD.

D) All of the above.

Explanation: The correct answer is D. All the options are crucial for a successful HDD to SSD migration. Ensuring compatibility, backing up data, and cloning the drive prevent data loss and compatibility issues.

Question 27:

A user is concerned about the security of their sensitive data stored on their laptop. Which of the following hardware components would provide the strongest form of biometric authentication?

A) Fingerprint scanner.

B) Webcam for facial recognition.

C) Keyboard with pressure sensors.

D) Microphone for voice recognition.

Explanation: The correct answer is an A. Fingerprint scanner. Fingerprint scanners are widely considered the most secure form of biometric authentication due to the unique nature of fingerprints and the difficulty in replicating them.

Question 28:

You are tasked with optimizing the performance of a laptop for video editing. Which hardware component would have the most significant impact on performance, assuming all other components are sufficient?

A) Processor (CPU).

B) Graphics Processing Unit (GPU).

C) Solid-State Drive (SSD).

D) Additional RAM.

Explanation: The correct answer is B. Video editing is heavily reliant on GPU processing power for tasks like rendering and effects. A powerful GPU will significantly improve video editing performance.

Question 29:

You are troubleshooting a laptop that is experiencing intermittent wireless connectivity issues. Which of the following components should you prioritize checking first?

A) The wireless network adapter.

B) The laptop's antenna.

C) The operating system's network settings.

D) The router's configuration.

Explanation: The correct Answer is A. The wireless network adapter is the primary component responsible for wireless connectivity. Issues with the adapter are the most common cause of intermittent wireless problems.

Question 30:

A client requests a laptop configuration with the highest level of security. Which combination of hardware components would provide the strongest security measures?

A) Fingerprint scanner, TPM chip, and firewall.

B) Solid-state drive, password manager, and encryption software.

C) Intrusion detection system, biometric authentication, and data backup.

D) TPM chip, full disk encryption, and intrusion prevention system.

Explanation: The correct answer is D. A TPM chip provides hardware-based security, full disk encryption protects data at rest, and an intrusion prevention system safeguards against unauthorized access. This combination offers a robust security posture.

Question 31:

A laptop is experiencing frequent blue screen errors. You suspect a hardware issue. Which component should you prioritize testing first?

A) RAM.

B) Hard drive.

C) Power supply unit.

D) CPU.

Explanation: The correct answer is A. RAM errors are a common cause of blue screen errors. Testing the RAM for errors using diagnostic tools is the first step in troubleshooting.

Question 32:

A client requires a laptop for heavy-duty graphic design applications. Which hardware components should be prioritized for optimal performance?

A) High-speed processor, large amount of RAM, dedicated graphics card.

B) Solid-state drive, high-resolution display, wireless connectivity.

C) Multiple storage drives, powerful cooling system, ergonomic keyboard.

D) Low-power processor, long battery life, lightweight design.

Explanation: The correct answer is A. Graphic design demands high processing power, ample memory for handling large image files, and a dedicated graphics card for rendering complex visuals efficiently.

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Quiz Text For Mastering Laptop Hardware - Objective 1.1 - CompTIA A+ Core 1 (220-1101).