D075 Information Technology Management Essentials - Set 1 - Part 1

Correct Answer: Central Processing Unit (CPU)

The CPU, often referred to as the "brain" of the computer, is responsible for executing instructions and performing calculations. The hard drive stores data, RAM temporarily holds data for quick access, and the NIC manages network communications. The CPU processes most of the tasks required by software.

Correct Answer: Ring

In a ring topology, each computer is connected to two other computers, forming a ring. The network sends data in one direction around the ring. Star topology connects each node to a central hub, while bus uses a single backbone.

Correct Answer: Word Processor

Word processing software, like Microsoft Word, allows users to create and edit documents. DBMS manages databases, operating systems run the computer, and presentation software is for creating slideshows.

Correct Answer: Centralized management of resources

In a client-server network, resources are managed centrally from the server, which simplifies management and increases control. The statement that all clients need the same IP address is false and would cause conflicts in communication.

Correct Answer: Holding data temporarily for quick access by the CPU

RAM temporarily stores data that the CPU needs to access quickly. Unlike a hard drive, it is not used for permanent storage.

Correct Answer: Computing power doubles every 18 months

Moore's Law predicts that the number of transistors on a microchip will double approximately every 18 months, leading to a proportional increase in processing power.

Correct Answer: Central Processing Unit (CPU)

Peripheral devices are external devices connected to the computer, such as printers and external hard drives. The CPU is an internal component that performs calculations.

Correct Answer: HTTP

HTTP (Hypertext Transfer Protocol) defines the rules for transmitting web pages over the internet. TCP/IP governs the overall communication protocols for networking.

Correct Answer: It manages hardware and software on a computer

System software, like operating systems, manages the hardware and software, ensuring everything functions properly.

Correct Answer: Star

In a star topology, each node connects directly to a central hub. This makes the hub a central point for all communications.

Correct Answer: Microcomputer

Microcomputers, such as desktops and laptops, are the least powerful in terms of processing compared to midrange computers, mainframes, and supercomputers, which handle more complex processing tasks.

Correct Answer: Solid State Drive (SSD)

SSDs use flash memory to store data persistently, providing faster access and more durability compared to traditional mechanical hard drives (HDDs).

Correct Answer: Wide Area Network (WAN)

A WAN connects multiple local networks (LANs) across large geographical areas, such as cities or even countries, making it suitable for large organizations.

Correct Answer: Switch

A switch filters and forwards data to the appropriate destination within a local network, unlike a hub, which sends the data to all devices on the network.

Correct Answer: Relational database

Relational databases organize data into tables that are connected via relationships. This allows for efficient querying and data management.

Correct Answer: To prevent unauthorized access to a network

Firewalls are designed to block unauthorized access to or from a network, thus protecting the internal systems from external threats.

Correct Answer: Random Access Memory (RAM)

RAM provides temporary storage that can be accessed randomly without physical movement, making it suitable for fast data access.

Correct Answer: Star topology

In a star topology, each network device is connected to a central hub, forming a shape similar to a star.

Correct Answer: Operating System (OS)

The OS manages both the CPU and other hardware resources, ensuring that all processes and tasks are executed efficiently.

Correct Answer: Network Interface Card (NIC)

The NIC allows computers to connect to a network via wired connections like Ethernet cables.