CompTIA A+ 220-1002 (Core 2) Interview Questions
The CompTIA A+ 220-1002 (Core 2) test covers a wide range of topics, including software and hardware, as well as network security. Installing and configuring operating systems, increase in security, software troubleshooting, and operational procedures will all be in this test. Furthermore, for technical support and IT operational tasks, this certification course is the best performance-based qualifying credential. IT specialists re-invent the CompTIA A+ 220-1002 (Essential 2) certification on a regular basis to guarantee that it accurately certifies the core skills and abilities required in the business. You can also earn the certificate with performance-based things to execute key IT support activities right now, which will help you advance your career significantly.
1.) What is the definition of a personal computer?
A personal computer (PC) is a system of interconnected components. It is computer hardware, not software or an operating system.
A computer’s components are as follows:
- Motherboard
- Processor (CPU)
- Memory (RAM)
- Storage (Hard drive)
- Power supply
- Mouse and keyboard
- Video card
- Network card
- Cooling fan
2.) What Are the Different Types of Storage Devices in CompTIA?
When the computer is not in use, data is in the storage device.
3.) What is the MotherBoard (System Board)?
A system board, often known as a motherboard, is the computer’s primary board.
4.) What do an Operating System’s functions entail in CompTIA ?
The operating system is the software that allows you to run computer programs.
- It connects you to your computer’s devices.
- It is in charge of the RAM.
- Determines which applications/processes should prioritise.
- It connects to several networks.
- Keeps track of files and directories.
- Has a graphical user interface.
- Keeps computer data safe.
Operating systems must be compatible with applications. Windows/ XP, Vista, MAC, Linux, and Windows Server are some examples of operating systems.
5.) What is the definition of computer memory? What are the many RAM types?
Data is in the computer’s memory.
6.) What are the many types of hard disc drive connectors in CompTIA ?
IDE/EIDE/PATA, SATA, SCSI, and other types of hard drive interfaces are commonly connected with integrated disc controllers.
7.) What are the various CPU technologies available in CompTIA ?
Hyper-Threading, Multicore, Throttling, Microcode, Overclocking, and Cache are examples of CPU technologies.
8.) What are System Files and How Do I Use Them?
- Data files in the registry.
- INI – allows you to select an operating system or an operating system with several boot options.
- NTLDR – the boot loader reads the boot (not in vista), and is in the root of the active disc partition.
- If XP is selected in the ini, it first runs ntdetect.com, followed by ntoskrnl.exe and hal.dll, before reading the registry and loading device drivers.
- COM – to gather information about the hardware that ntldr is running on.
- SYS – This file is to boot Windows from SCSI discs.
9.) What are the different types of operating system installation methods in CompTIA ?
Installing an operating system can be done in a variety of ways. For many customers, the operating system comes pre-installed on their new computer, and they don’t give it a second thought. As a technician, however, knowing how to install, re-install, and upgrade an OS is critical.
Installation methods include:
1. Boot media – CD
2. Boot media alternatives – DVD, floppy, or USB
3. Network installation, remote installation service (RIS) or automated deployment services (ADS)
4. Drive imaging – ghost
10.) What is the motherboard?
The motherboard, sometimes known as the mainboard, is the computer’s backbone. The motherboard serves as a framework for connecting all of the components, including sound drivers, video drivers, graphics cards, hard drives, and CPU memory.
11.) What do you think of when you hear the terms “ROM” and “RAM” in CompTIA ?
Both ROM and RAM are memory, although they serve different purposes. RAM (random-accessible memory) is a memory that reads and stores the codes of the programmes that operate under the processor, whereas ROM (Read-only memory) is a memory that runs only temporarily when the PC is powered on and running. Even when the power is turned off, data is stored in the ROM. That is why, for video gaming, RAM is more crucial because it can support more.
12.) What are the essential hardware components for a computer to function?
A computer chassis, monitor, keyboard, mouse, and power cord are the essential components of a computer. Each of these components has a distinct value and plays a significant function in the operation of a computer. Make sure you name them and give a quick explanation of what they do.
13.) What is the difference between a graphics card and a graphics driver in CompTIA ?
Your computer’s graphics are stored on a separate card with its own slot that plugs into the motherboard. This is why these parts are referred to as graphic cards. It’s worth noting that graphic components in laptops are frequently incorporated into the motherboard.
The graphic driver is a programme that regulates and supervises how your graphic components interact with the rest of your software.
14.) What is FireWire?
FireWire is a type of device that can transfer data across various digital devices, including audio and video equipment, while also being simple to use. While the power is on, it can be plugged in or disconnected, and the PC will respond automatically. After installing the driver, the PC and FireWire may begin working and transferring data right away.
15.) What is a microprocessor, exactly?
Microprocessors are small, programmable, multi-tasking devices that can take in data, process it, and then output the result. Previously, their job was to integrate data from the CPU onto one or more integrated circuits, but currently all CPUs are microprocessors. The binary system underpins their operation, which includes symbols and integers. The integration of the entire CPU on a single chip saves a significant amount of processing power.
16.) What is Cache RAM when it comes to RAM in CompTIA ?
The cache RAM, also known as SRAM, is a location where frequently used data is saved on a regular basis. It’s a compact high-speed memory box that sits above the main memory and behind the CPU. Before moving on to the next step, the processor always verifies the SRAM.
17.) What is a modem, exactly?
A modem, also known as a modulator-demodulator, is a device that translates waves from telephones and cables into computer data. The computer stores digital data, whereas telephones typically transmit analogue signals. The modem’s job is to receive and convert these waves so that communication can take place.
18.) What would you do if you had to set up a wireless network in CompTIA ?
To begin, each device on a wireless network will require wireless adapters. Wireless adapters are now built into most laptops, but if yours is obsolete, make sure you get wireless adapters first. Then, in order to build up a complete and all-wireless network, wireless routers are required. To broaden the network, you’ll also need access points. After the routers have been installed, the access points are normally set up. This is how you make it possible for the network to expand. The wireless routers and access points are then routed through the wireless antenna, which broadcasts a strong radio signal. Finally, a wireless repeater to extend your wireless’s range for people who can’t obtain a signal is the last thing you should do.
19.) How will you explain DRAM?
DRAM stands for dynamic random-access memory, whereas RAM stands for random-access memory. What exactly does that imply? It means that every BIT of data from the PC is stored in a single circuit. DRAM alternates between charged and discharged states, resulting in a value of 0 or 1.
20.) What exactly is a graphical user interface (GUI) in CompTIA ?
The GUI, or graphical-user interface, is designed so that users may control files and programmes on the screen with a mouse, dragging and clicking on items rather than typing commands. The graphical user interface (GUI) is employed and was debuted alongside Microsoft’s most popular operating system. Because this is a simple process, there haven’t been many GUI modifications since then.
21.) Is DRAM capable of speeding up your computer in CompTIA ?
Yes, upgrading your DRAM is a good idea if you want to improve your system’s performance. In reality, it does not improve your CPU’s response time, but it does shorten the time it takes for the CPU to get data from the hard drive.
22.) What are the benefits of partitioning a hard drive?
It will improve your PC and assist you in better data management. Having all of your data on a single partition poses a significant danger if, for example, your Windows breaks permanently. Always keep the backup files and everything else on separate partitions. Even put a bootable OS version on a single partition. It will be quite beneficial.
23.) What is the OSI model, and how does it work?
The OSI model stands for Open System Interconnection and is the ISO standard for Internet networking. The OSI model establishes a network boundary (framework) for attaching protocols in seven layers. Starting at one station and working your way down the chain. The X400 and X500 are well-known OSI models, and some of them, such as those for e-mail and directory, are still in use today. Older OSI models are now used to teach or practise all of the protocols that must be implemented.
24.) If you were to describe the network in simple word, what would it be in CompTIA ?
Simply described, a network is a system that allows two computers to communicate with one another. A network allows two or more computers to share data, share a screen, send and receive messages, print, and much more. The network’s foundation and how computers are connected differ significantly. From telephone wires to transmitting digital signals via Wi-Fi antennae, satellite connections, infrared beams, and so on. There are many different sorts of networks, such as LANs, WANs, and so on. A local area network is referred to as a LAN, whereas a wide area network is referred to as a WAN.
25.) What are IP addresses, and what do they mean?
An IP address is a unique identifier for your personal data. All computers connected to the internet interact using IP addresses in order to quickly identify the desired computer and transfer data to it. IP addresses are required for a network to operate. Imagine a spider’s web with all the small dots interspersed throughout. Those dots represent IP addresses, which are unique identifiers for each location and computer on the internet.
26.) What is the definition of a gateway in CompTIA ?
A gateway is a device that connects two networks that use different protocols to provide an internetworking connection. The act of communication between the two networks is referred to as internetworking. The gateways are normally installed at the network’s “end” or “edge,” and their purpose is to not only establish connection with other networks, but also to defend the network. As a result, the gateways include firewalls. It’s as simple as using a router to join numerous PCs in a local network (which in that case serves as a gateway). They can function at any OSI level.
27.) What exactly is a virtual private network (VPN)?
A VPN is a virtual private network that enables secure Internet access and browsing. It adds a layer of protection to the Internet, and browsing through this secure network keeps your information safe from prying eyes.
28.) What is Domain Name System (DNS)?
Domain Name Servers (DNS) is a list of all the domains that is then translated into IP addresses.
29.) How is a network issue different from a DNS issue in CompTIA ?
When a domain name cannot be translated into an IP address, it is referred to as a DNS (domain name server) problem. You’d have a DNS problem if your computer couldn’t recognise an IP address on a specific domain name and couldn’t actually communicate. When you can’t trace and identify the IP address, you’ve got a network problem.
30.) What is the DHCP protocol?
The DHCP protocol stands for Dynamical Host Configuration Protocol. It’s used to quickly define a specific IP address and assign it to a computer so that it may be recognised on the Internet. When the computer is turned on, it instantly starts up.
31.) What is the procedure for setting up a default router or gateway in CompTIA ?
A gateway, as previously said, is a method of connecting to a network. The default gateway is used to build an access point for your PC to use the web when you have trouble reaching one (or any other network issue). When the IP address does not match any other routes, this is what happens.
32.) What are the many types of networks?
Different networks are available in various sizes. For a network-café, setting up a tiny network may be advantageous, but not for a large corporation. As a result, networks varied from Class A to Class B to Class C in terms of the number of computers and network traffic they can handle.
33.) What is circular logging and how does it work in CompTIA ?
This type of logging prevents the transactional logging process in the Windows directory from growing. The first log file is overwritten (circulated) so that it does not take up space on the hard disc.
34.) In a directory service, which protocol is used?
It’s the LDAP (Light-weight Directory Access Protocol), which is an industry standard for directory data management.
35.) What is the difference between a switch and a hub in CompTIA ?
A hub and a switch are both network components that link electrical devices in two ways. They both generate network traffic, but they have distinct reactions to it. The hub (also known as the receiver) is a device that, after receiving all of the data, sends out a repeat signal to all of the other devices. The disadvantage is that it may produce unnecessary traffic in your direction. Having a switch allows for better traffic control. It gathers packages from all of the address data and transmits them to the specified port. It’s easier to administer and better for a larger network. For smaller networks, hubs are employed.
