Mobile Devices
Your iPhone is overheating and you notice a bulge in the back of the phone. Which hardware device needs replaced?
Answer: (Battery)
Why: A swollen battery causes overheating and physical bulging, so it must be replaced.
This technology is used when a smartphone is held near a card reader to complete a payment.
Answer: NFC
Why: It uses very short-range communication for tap-to-pay transactions.
This is the main circuit board that connects all parts of a computer together.
Answer: Motherboard
Why: The motherboard allows the CPU, RAM, storage, and other components to communicate with each other
What does VDI stand for?
Answer: Virtual Desktop Infrastructure
Why: It refers to desktops hosted on centralized servers that users access remotely.
What is the likely issue if a computer powers on but shows no display?
Answer: Faulty or improperly connected RAM or GPU
Why: The system may power on, but without working memory or graphics hardware, it cannot complete POST or display anything.
Which connection type is used when connecting to wireless headphones or a wireless speaker?
Answer: (Bluetooth)
Why: Bluetooth is designed for short-range wireless connections like headphones and speakers.
This Wi-Fi standard operates on the 2.4 GHz band, supports decent range (up to about 150 feet), and improved speeds over earlier Wi-Fi versions.
Answer: 802.11g
Why: 802.11g uses the 2.4 GHz frequency and offers faster performance than older standards like 802.11b while maintaining good range.
This type of RAM is used in servers because it can detect and correct memory errors.
Answer: ECC RAM
Why: ECC RAM improves reliability by correcting memory errors automatically
What are the “as-a-service” types in cloud computing?
Answer: IaaS, PaaS, and SaaS
Why: These are the three main cloud service models, representing infrastructure, platforms, and software delivered over the internet.
What is the likely cause of a very slow network connection on one device only?
Answer: Weak connection or loaded background activity
Why: The device is connected to a local network but could be too far. Possibly could have many apps loaded running in the background, slowing down the phone
This authentication method uses a person’s fingerprint or facial recognition to unlock a device.
Answer: (Biometrics)
Why: Biometrics verifies identity using unique physical traits.
This protocol automatically assigns IP addresses to devices on a network.
Answer: DHCP
Why: It dynamically provides IP addresses and network configuration to devices .
This is a hardware cooling component that attaches directly to a CPU and helps draw heat away using a metal base and fins.
Answer: Heatsink
Why: A heatsink is a physical hardware component that absorbs and disperses heat away from the CPU to prevent overheating.
What cloud model would a client prefer if they want all information and resources to themselves?
Answer: Private cloud
Why: A private cloud is dedicated to a single organization, so resources are not shared with others.
What does it mean if a network shows “Limited Connectivity”?
Answer: No internet access
Why: The device is connected to a local network but cannot reach the internet, often due to incorrect IP settings or gateway issues.
This solution allows a company to manage and secure employee-owned devices under a BYOD policy.
Answer: (Mobile Device Management)
Why: MDM enforces security policies and controls corporate data on personal devices.
This Windows protocol allows full graphical control of another computer over a network.
RDP Port:3389
Why: It enables users to remotely access and control a Windows desktop interface.
This is the most common standard motherboard size used in desktop computers.
Answer: ATX
Why: ATX is widely used because it supports good expandability and compatibility.
What is the ability to automatically and quickly scale computing resources up or down based on demand?
Answer: Elasticity
Why: Elasticity allows systems to dynamically adjust resources in real time based on workload needs.
What is the most likely cause of a computer that randomly shuts down during use?
Answer: Overheating
Why: Excess heat causes the system to shut down automatically to protect internal components from damage.
This component is likely failing if a touchscreen device does not respond to touch after cleaning and restarting.
Answer: (Digitizer)
Why: The digitizer is the part of the screen that detects touch input. If touch stops working, the digitizer is likely faulty or damaged.
This protocol retrieves email while keeping messages stored on the mail server.
Answer: IMAP
Why: It allows email syncing across multiple devices while keeping messages on the server.
These are the five commonly used RAID levels in computer storage systems.
Answer: RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
Why: Each RAID level provides different balances of speed, redundancy, and data protection.
What is the difference between a Type 1 and a Type 2 hypervisor?
Answer: Type 1 runs directly on hardware; Type 2 runs on an operating system
Why: Type 1 hypervisors are more efficient and used in enterprise systems, while Type 2 hypervisors rely on a host OS and are more common for personal use.
What does (S.M.A.R.T.) stand for?
Self-monitoring and Reporting Technology