Acma Computers Interview Questions, Process, and Tips

Active Directory is a directory service developed by Microsoft for Windows domain networks.

• Centralized database for managing network resources

• Stores information about users, computers, and other network objects

• Allows for authentication and authorization of users

• Enables administrators to assign policies, deploy software, and apply updates

• Example: User accounts, group policies, security settings

SSD is faster, more durable, and more expensive than HDD.

• SSD uses flash memory to store data, while HDD uses spinning disks.

• SSD has faster read/write speeds compared to HDD.

• SSD is more durable as it has no moving parts, while HDD can be prone to mechanical failure.

• SSD is more expensive per gigabyte compared to HDD.

• Examples: SSD - Samsung 970 EVO, HDD - Seagate Barracuda

There are two main types of RAM: DRAM (Dynamic Random Access Memory) and SRAM (Static Random Access Memory).

• DRAM (Dynamic Random Access Memory) - most common type, used in computers for main memory

• SRAM (Static Random Access Memory) - faster and more expensive than DRAM, used in cache memory

• Other types include SDRAM (Synchronous Dynamic Random Access Memory), DDR (Double Data Rate) RAM, and DDR2/3/4 RAM

A server is a computer or software program that provides functionality or resources to other computers, known as clients, over a network.

• Servers store and manage data, files, applications, and services for clients to access.

• They can provide email services, host websites, store files, and more.

• Examples include web servers like Apache, email servers like Microsoft Exchange, and file servers like Windows Server.

Domain Naming System (DNS) is a system that translates domain names to IP addresses.

• DNS is like a phone book for the internet, translating human-readable domain names (like google.com) to machine-readable IP addresses (like 172.217.3.206)

• DNS helps users access websites and other online services by resolving domain names to IP addresses

• DNS servers store records of domain names and their corresponding IP addresses

A server is a computer or software that provides functionality for other programs or devices, while a router is a networking device that forwards data packets between computer networks.

• A server can be used to host websites, store files, manage network resources, etc.

• Examples of servers include web servers, email servers, file servers, etc.

• A router connects multiple networks together and routes data packets between them...read more

Topology refers to the arrangement of different elements in a network.

• Topology defines how devices are connected in a network

• Common topologies include bus, star, ring, and mesh

• Each topology has its own advantages and disadvantages

• Topology affects the performance, scalability, and fault tolerance of a network

Routers connect different networks, switches connect devices within a network.

• Routers operate at the network layer and use IP addresses to forward packets between networks.

• Switches operate at the data link layer and use MAC addresses to forward frames within a network.

• Routers can prioritize traffic and perform network address translation (NAT).

• Switches can create virtual LANs (VLANs) to segment a network.

• Example of a r...read more

Windows 10 has a more modern interface, better security features, and improved performance compared to Windows 7.

• Windows 10 has a Start menu with live tiles, while Windows 7 has a traditional Start menu.

• Windows 10 has Cortana, a virtual assistant, while Windows 7 does not.

• Windows 10 has better security features such as Windows Hello, biometric authentication, and improved Windows Defender.

• Windows 10 has improved perfor...read more

CPU stands for Central Processing Unit. It is the primary component of a computer responsible for executing instructions and performing calculations.

• CPU is the brain of the computer, responsible for executing instructions and performing calculations.

• It is made up of cores, cache memory, and registers.

• Examples of CPUs include Intel Core i7, AMD Ryzen, and Apple M1.

Motherboard is the main circuit board in a computer that connects all the components together.

• Main circuit board in a computer

• Connects all components together

• Contains CPU, RAM, and other essential components

• Provides communication between hardware components