| What is the difference between binary and hexadecimal notation? | Binary: base 2 (0,1), Hexadecimal: base 16 (0-9, A-F). |
| Explain SaaS. | Software delivered over the internet on a subscription basis. |
| What is a firewall? | Monitors and controls network traffic based on security rules. |
| Define a VPN. | A service that encrypts your internet connection and hides your online activity. |
| What is a modem? | Converts data between digital and analog for transmission. |
| What is a hard drive? | Storage device using rotating disks to store data. |
| What is cloud computing? | Delivery of services like storage and software over the internet. |
| Compare and contrast common units of measure. | Storage: Bit, Byte, KB, MB, GB, TB. Throughput: bps, Kbps, Mbps. Speed: MHz, GHz. |
| Explain the basics of computing. | Input, Processing, Output, Storage. |
| Identify notational systems. | Binary, Hexadecimal, Decimal, Octal. |
| Explain what DNS is. | Translates domain names into IP addresses. |
| Define RAM. | Memory used for storing data and machine code in use. Stands for Random Access Memory. |
| Define a switch in networking. | Connects devices within a network, forwards data to destinations. |
| What is network segmentation? | Dividing a network into smaller parts for better security and performance. |
| Explain a wireless access point. | Allows Wi-Fi devices to connect to a wired network. |
| Define IaaS. | Provides virtualized computing resources over the internet. |
| What is a router? | Forwards data packets between networks\, directs internet traffic. |
| What is virtualization? | Creating a virtual version of hardware or network resources. |
| Define a virtual machine. | Software-based computer emulation running OS and apps. |
| Explain what a data center is. | A facility housing computer systems and storage components. |
| Explain what a motherboard is. | Main PCB in a computer connecting CPU, RAM, and storage. |
| Define 'bit' and 'byte'. | A bit is 0 or 1; a byte is 8 bits. |
| What is a CPU? | Performs most of the processing inside a computer. Stands for Central Processing Unit. |
| Explain the troubleshooting methodology. | 1. Identify problem 2. Establish theory 3. Test 4. Plan solution 5. Verify 6. Document. |
| What are the functions of input, processing, output, and storage? | Input: enter data; Processing: manipulate; Output: display; Storage: save. |
| What is an IP address? | Unique identifier for devices on a network. |
| What is PaaS? | Platform for developing, running, and managing applications. |