Network Protocols and Services Flashcards
6 cards from real CCST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Network Protocols and Services flashcards as text
Which protocol allows routers to exchange routing information automatically and is classified as a dynamic routing protocol?
Answer: OSPF
OSPF (Open Shortest Path First) is a link-state dynamic routing protocol that routers use to automatically learn and share network routes.
What is the purpose of STP (Spanning Tree Protocol) in a switched network?
Answer: Prevent broadcast storms by blocking redundant switch paths
STP prevents Layer 2 switching loops by placing redundant paths in a blocking state, allowing only one active path at a time.
A technician configures a switch port to carry traffic for multiple VLANs between switches. What type of port configuration is this?
Answer: Trunk port
A trunk port carries tagged traffic for multiple VLANs between switches or between a switch and a router using IEEE 802.1Q tagging.
Which well-known port does the SMTP protocol use to send outgoing email between mail servers?
Answer: 25
SMTP (Simple Mail Transfer Protocol) uses TCP port 25 for server-to-server email delivery and relay.
What is the function of a proxy server on a corporate network?
Answer: Acts as an intermediary for client requests, providing caching, filtering, and access control
A proxy server sits between clients and the internet, forwarding requests on behalf of clients while providing caching, content filtering, and access logging.
Which protocol provides a way for a device to discover its IP address automatically when no DHCP server is available, resulting in an address in the 169.254.0.0/16 range?
Answer: APIPA
APIPA (Automatic Private IP Addressing) allows a host to self-assign an address from 169.254.0.0/16 when no DHCP server responds.