IT Infrastructure & Networking Flashcards
9 cards from real CCP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 9 IT Infrastructure & Networking flashcards as text
What is the primary purpose of IT infrastructure?
Answer: To support business operations and technology needs
IT infrastructure comprises the foundational components like hardware, software, networks, and facilities that are essential for an organization's operations. Its primary purpose is to provide the necessary technological backbone to support business processes, facilitate communication, and enable the delivery of services. Without robust infrastructure, modern businesses cannot function effectively.
Which device is responsible for directing data between networks?
Answer: Router
A router is a network device that forwards data packets between different computer networks. It uses IP addresses to determine the best path for data to travel, enabling communication between local area networks (LANs) and wide area networks (WANs), including the internet. Routers are essential for connecting disparate networks and directing traffic efficiently.
What is a firewall used for?
Answer: Filtering unauthorized access and securing networks
A firewall acts as a security barrier, monitoring and controlling incoming and outgoing network traffic based on predefined security rules. Its main function is to prevent unauthorized access to a private network and protect against various cyber threats by filtering malicious data. Firewalls are a critical component of network security.
What is the function of a network switch?
Answer: To connect devices within a local area network
A network switch is a device that connects multiple devices, such as computers, printers, and servers, within a local area network (LAN). It intelligently forwards data packets only to the intended recipient device, improving network efficiency and performance compared to a hub. Switches are fundamental for creating efficient local network segments.
Which protocol is commonly used for secure data transfer over the internet?
Answer: HTTPS
HTTPS (Hypertext Transfer Protocol Secure) is an extension of HTTP that adds a layer of security through SSL/TLS encryption. It ensures that data exchanged between a user's browser and a website is encrypted and protected from eavesdropping and tampering, making it essential for secure online transactions and sensitive information. This protocol is vital for privacy and security on the internet.
What does IP stand for in networking?
Answer: Internet Protocol
IP stands for Internet Protocol, which is a fundamental set of rules for addressing and routing data packets across networks. It defines how data should be formatted, addressed, and transmitted so that it can travel from a source to a destination across the internet. IP is a core protocol that enables global communication.
Which topology connects each device to a central hub?
Answer: Star
In a star topology, each device in the network is individually connected to a central hub, switch, or server. This setup makes it easy to add or remove devices and isolates problems, as a failure in one connection does not affect the entire network. It is a widely used and robust network configuration.
What is bandwidth in computer networks?
Answer: The range of data that can be transferred in a given time
Bandwidth in computer networks refers to the maximum rate at which data can be transferred over a network connection in a specific period, typically measured in bits per second (bps). It indicates the capacity of a network link, with higher bandwidth allowing for faster data transmission and better performance. Understanding bandwidth is crucial for network design and performance optimization.
What is the role of DNS in networking?
Answer: Translates domain names into IP addresses
DNS (Domain Name System) acts like the internet's phonebook, translating human-readable domain names (like google.com) into numerical IP addresses (like 172.217.160.142) that computers use to identify each other on the network. This translation is crucial for users to access websites and other internet resources without memorizing complex IP addresses. It is a foundational service for internet navigation.