TripAdvisor RD 3 Flashcards
(160 cards)
What does the OSI model stand for?
Open Systems Interconnection
Which layer of the OSI model is responsible for routing data between networks?
Network Layer (Layer 3)
What does TCP stand for in networking?
Transmission Control Protocol
What is the purpose of DHCP in networking?
Assigns IP addresses automatically to devices
In the OSI model, which layer deals with MAC addresses and switches?
Data Link Layer (Layer 2)
What is the main function of the Physical Layer in the OSI model?
Handles the physical connection between devices (cables, signals)
What does DNS do in a network?
Translates domain names into IP addresses
Which protocol is used for securing communication over the internet?
HTTPS (Hypertext Transfer Protocol Secure)
What is NAT in networking?
Network Address Translation – translates private IPs to public IPs
What does VLAN stand for in networking?
Virtual Local Area Network
What is the role of the default gateway in a network?
Directs traffic from the local network to external networks
Which network tool shows the path packets take to reach a destination?
Tracert (Windows) / Traceroute (Linux/macOS)
What does UDP stand for, and what is it used for?
User Datagram Protocol – used for faster, less reliable communication
What does IP stand for, and what does it handle?
Internet Protocol – handles routing and addressing
What are the key responsibilities of a network router?
Forwards data between networks
What is the difference between TCP and UDP?
TCP is reliable with error correction; UDP is faster but less reliable. TCP is connection-orientated while UDP is connection-less.
UDP - Gaming, Video Streaming
TCP - Web Browsing, file transfers
What is a firewall’s primary function in a network?
Monitors and controls incoming and outgoing network traffic based on security rules
What does IPv4 stand for?
Internet Protocol version 4
What is CIDR notation used for in networking?
Defines the size of a network (e.g., 192.168.1.0/24)
Which OSI layer manages sessions between applications?
Session Layer (Layer 5)
How does ARP work in a network?
Resolves IP addresses to MAC addresses
What is the purpose of port 443 in networking?
Secure web traffic (HTTPS)
What network issue does Spanning Tree Protocol (STP) prevent?
Network loops
What is a subnet in IP networking?
A segmented portion of a larger network