The TCP/IP Module Flashcards
Q: What is the first layer of the TCP/IP model?
A: Network Interface Layer - Corresponds to OSI’s Physical and Data Link layers, managing physical addressing.
Q: What is the second layer of the TCP/IP model?
A: Internet Layer - Corresponds to OSI’s Network layer, managing logical addressing and routing (IP).
Q: What is the third layer of the TCP/IP model?
A: Transport Layer - Corresponds to OSI’s Transport layer, ensuring reliable data transfer (TCP/UDP).
Q: What is the fourth layer of the TCP/IP model?
A: Application Layer - Corresponds to OSI’s Session, Presentation, and Application layers, providing application services (HTTP, FTP).
Q: How is the TCP/IP model particularly useful?
A: For understanding the overall connection establishment quickly.
Q: What does TCP/IP allow applications to do?
A: Transfer and exchange data over any network regardless of the receiver’s location.
Q: What ensures that a data packet reaches its destination in TCP/IP?
A: IP (Internet Protocol).
Q: What controls data transfer and ensures the connection between data stream and application in TCP/IP?
A: TCP (Transmission Control Protocol).
Q: What is the main difference between TCP/IP and the OSI model?
A: The number of layers, with some layers combined in TCP/IP.
Q: What is the role of IP in logical addressing within TCP/IP?
A: IP handles logical addressing of networks and nodes, ensuring data packets reach the correct network.
Q: How is routing managed in TCP/IP?
A: IP determines the next node for each data packet, routing it to the receiver even if the sender doesn’t know the receiver’s location.
Q: What does TCP do to manage error and control flow?
A: TCP sends control messages to check if the connection is still established.
Q: How do TCP and UDP support applications?
A: Through ports that distinguish specific applications and their communication links.
Q: What is the purpose of DNS in TCP/IP?
A: DNS provides name resolution through Fully Qualified Domain Names (FQDN) to IP addresses, enabling us to reach the desired host on the internet.
Q: What does logical addressing involve in TCP/IP?
A: Network classes, subnetting, and CIDR (Classless Inter-Domain Routing).
Q: What protocols are involved in logical addressing and routing in TCP/IP?
A: IP (Internet Protocol).
Q: What task involves TCP and UDP ports in TCP/IP?
A: Application support.
Q: What task does DNS perform in TCP/IP?
A: Name resolution.
Q: How does IP support routing in TCP/IP?
A: By determining the next node for each data packet on its way from sender to receiver.
Q: What is DNS in networking?
A: DNS (Domain Name System) translates domain names (like google.com) into IP addresses (like 172.217.6.14) so that computers can locate and communicate with each other on networks.
