S 3413 test 3 review - Study guides, Class notes & Summaries

Backbone Network Components - Network Cables, Switches, Routers Layer-2 Switches - Forward packets using data link layer (MAC) address Physical ports (16-24); logical star topology for point-to-point circuits Layer 3 Switches - Combine features of layer-2 switches and routers, primarily for virtual LANs Routers - Network layer devices; use IP addresses, strip off data link layer frames Provides clear segmentation of connected sub-netted LANs Switched BN - Most common BN used in distributio...

1. The component used to switch the heat pump unit between the heating and cooling modes of operation is the ____. a. four-way valve b. bi-valve c. two-way valve d. switching valve ANSWER: a POINTS: 1 REFERENCES: Reverse-Cycle Refrigeration QUESTION TYPE: Multiple Choice HAS VARIABLES: False DATE CREATED: 3/12/2015 12:23 PM DATE MODIFIED: 12/19/2015 6:31 PM 2. An air-to-air heat pump ____ heat from the outside air and deposits it in the conditioned space. a...