D315 Practice Questions with Verified Correct
Answers
laptops, desktops, mobile devices
End devices
email, Im, file transfer, authentication, etc
Network applications and services
switches, wireless access points, routers, firewalls, modems
Networking devices
device within a network segment and uses mac addresses to make forwarding position
Switch(layer 2)
bridges wireless devices ethernet to switch port and uses MAC addresses to know
whether or not to forward the wired side to the wireless or vice versa
WAP(layer 2)
a repeater for the primary access point
Wireless range extenders
moves data or traffic from one IP network to another. Uses IP address and each
interface connects to diff IP network
Routers(layer 3, network layer)
primary security device , compares each packet against rules
Firewall(layers 3 & 4)
, facilitate comm to the internet through ISP
Modems(layer 1)
8 copper wires always use RJ 45 connectors
Twisted pair(ethernet)
copper wires, connects tv to a cable, tv provider or a cable box or if you have cable
modem
Coaxial(not used heavily
uses glass or plastic core, can go for miles and miles, the speed is much greater,
completely immune to EMI (LC,ST)
Fiber optic
Short ethernet twisted pair cable, from computer to wall jack, from patch panel to
switch
Patch cables(RJ 45 connecter on each end)
facilitates the transmit pins on one side to receive pins on the other, used for uplinking
switches to switches, hubs to hubs, switch to hub.
Crossover cables
1000 Mbps(1Gbps) 100m: 10 Gbps / 100 m
Cat5e & 6a
10, 16, 100 Mbps speed/ distance = 100m (328 ft)
Cat 3,4,5
1 Gbps - 100m & 10 Gbps - 55m. Distance is 100m
Answers
laptops, desktops, mobile devices
End devices
email, Im, file transfer, authentication, etc
Network applications and services
switches, wireless access points, routers, firewalls, modems
Networking devices
device within a network segment and uses mac addresses to make forwarding position
Switch(layer 2)
bridges wireless devices ethernet to switch port and uses MAC addresses to know
whether or not to forward the wired side to the wireless or vice versa
WAP(layer 2)
a repeater for the primary access point
Wireless range extenders
moves data or traffic from one IP network to another. Uses IP address and each
interface connects to diff IP network
Routers(layer 3, network layer)
primary security device , compares each packet against rules
Firewall(layers 3 & 4)
, facilitate comm to the internet through ISP
Modems(layer 1)
8 copper wires always use RJ 45 connectors
Twisted pair(ethernet)
copper wires, connects tv to a cable, tv provider or a cable box or if you have cable
modem
Coaxial(not used heavily
uses glass or plastic core, can go for miles and miles, the speed is much greater,
completely immune to EMI (LC,ST)
Fiber optic
Short ethernet twisted pair cable, from computer to wall jack, from patch panel to
switch
Patch cables(RJ 45 connecter on each end)
facilitates the transmit pins on one side to receive pins on the other, used for uplinking
switches to switches, hubs to hubs, switch to hub.
Crossover cables
1000 Mbps(1Gbps) 100m: 10 Gbps / 100 m
Cat5e & 6a
10, 16, 100 Mbps speed/ distance = 100m (328 ft)
Cat 3,4,5
1 Gbps - 100m & 10 Gbps - 55m. Distance is 100m
