WGU C172 Network and Security Foundations Exam Questions and Answers

WGU C172 Network and Security Foundations Exam Questions and Answers protocol - ANSWER The set of rules established for users to exchange information topology - ANSWER The network architecture used to interconnect the networking equipment deterministic network - ANSWER Each station connected to the network is ensured access for transmission of its messages at regular or fixed time intervals bus topology - ANSWER The computers share the media (coaxial cable) for data transmission ThinNet - ANSWER The coaxial cable used in a bus network. star topology - ANSWER Twisted-pair cables connect the devices to a central hub or switch hub - ANSWER A multiport repeater device used at the center of a star topology multiport repeater - ANSWER The data it receives is broadcast and seen by all devices connected to its ports. A hub. broadcast - ANSWER Transmission of data by a hub to all devices connected to its ports switch - ANSWER Device used at the center of a star topology that forwards a frame it receives directly out the port associated with its destination address mesh topology - ANSWER All networking devices are directly connected to each other, allows for full redundancy OSI model - ANSWER The seven layers describing network functions Physical layer - ANSWER Provides the electrical and mechanical connection to the network (cabling, NICs). 1st OSI layer Data link layer - ANSWER Handles error recovery, flow control (synchronization), and sequencing (MAC, Ethernet). 2nd OSI layer Network layer - ANSWER Accepts outgoing messages and combines messages or segments into packets, adding a header that includes routing information (IP, IPX). 3rd OSI layer Transport layer - ANSWER Concerned with message integrity between source and destination (TCP, UDP). 4th OSI layer