Operating Systems & Computer Networks Flashcards
6 cards from real B.S.W.E. Bachelor of Software Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Operating Systems & Computer Networks flashcards as text
What is the TCP/IP transport layer responsible for?
Answer: End-to-end communication and reliability between applications
The transport layer (TCP/UDP) provides end-to-end communication between applications, handling reliable delivery and flow control.
What is the main difference between TCP and UDP?
Answer: TCP is reliable with acknowledgments; UDP is faster but unreliable
TCP provides reliable, ordered, error-checked delivery with acknowledgments, while UDP is connectionless and faster but offers no delivery guarantees.
What does DNS do in a network?
Answer: Domain Name System — translates domain names to IP addresses
DNS (Domain Name System) translates human-readable domain names like google.com into the IP addresses that computers use to communicate.
What is a subnet mask used for in networking?
Answer: Dividing an IP network into smaller subnetworks
A subnet mask divides an IP address into network and host portions, enabling the logical subdivision of an IP network into subnets.
What is the purpose of the ARP protocol?
Answer: Resolving IP addresses to MAC addresses on a local network
ARP (Address Resolution Protocol) maps a known IP address to the corresponding MAC address needed for local network communication.
What is the main purpose of HTTPS over plain HTTP?
Answer: Encrypted, secure communication using TLS/SSL
HTTPS uses TLS/SSL encryption to provide authenticated and encrypted communication, protecting data integrity and confidentiality over the web.