2.2 Compare and contrast common networking hardware.

Question 1

Directs traffic between IP subnets. Makes forwarding decision based on Ip address. Layer 3 switches inside of switches. Connects diverse network types. LAN, WAN, Cooper, & fiber.

Answer 1

Routers

Question 2

Bridging done in hardware. Application specific integrated circuit (ASIC). Forwards traffic based on data link address. The core of an enterprise network. May provide Power over Ethernet (PoE). Includes routing functionality.

Answer 2

Switches

Question 3

Very few configuration options. Fixed configuration (No VLANS). Very little integration with other devices. No management protocols. Low price point.

Answer 3

Unmanaged Switches.

Question 4

VLAN support. Interconnect with other switches via 802.1Q. Traffic prioritization-Voice traffic gets a higher priority. Redundancy support (Spanning Tree Protocol) (STP). External management- Simple Network Management Protocol (SNMP).

Answer 4

Managed Switches

Question 5

Not a wireless router. Extends the wired network onto the wireless network. Makes forwarding decisions based on MAC address.

Answer 5

Access Point

Question 6

Combination of punch-down blocks and
RJ-45 connectors. Runs from desks are made once.Permanently punched down to patch panel. Patch panel to switch can be easily changed. No special tools and uses existing cables.

Answer 6

Patch Panel

Question 7

Filters traffic by port number. Can encrypt traffic into/out of the network. Can proxy traffic. Most firewalls can be layer 3 devices (routers).

Answer 7

Firewalls

Question 8

One wire for both network and electricity,Phones, cameras, wireless access points,Useful in difficult-to-power areas Power provided at the switch.

Answer 8

Power over Ethernet (POE)

Question 9

In line power- Midspans.

Answer 9

Injector.

Question 10

“Multi-port repeater”. Traffic going in one port is repeated to every other port. Everything is half-duplex. Becomes less efficient as network traffic increases. 10 megabit / 100 megabit. Difficult to find today

Answer 10

HUB

Question 11

Broadband– Transmission across multiple frequencies– Different traffic types. Data on the “cable” network– DOCSIS (Data Over Cable Service Interface Specification). High-speed networking– Speeds up to 1 Gigabit/s are available. Multiple services– Data, voice, video.

Answer 11

Cable Modem

Question 12

ADSL (Asymmetric Digital Subscriber Line). Uses telephone lines. Download speed is faster than the upload
speed (asymmetric)– ~10,000 foot limitation from the central office (CO)– 52 Mbit/s downstream / 16 Mbit/s upstream are common– Faster speeds may be possible if closer to the CO.

Answer 12

DSL Modem

Question 13

Fiber to the premises. Connect the ISP fiber network to the copper network– Demarcation point (demarc) in the data center– Terminal box on the side of the build. Line of responsibility– One side of the box is the ISP– Other side of the box is your network

Answer 13

ONT Optical network Terminal

Question 14

The fundamental network device– Every device on the network has a NIC– Computers, servers, printers, routers, switches, phones, tablets, cameras, etc.* Specific to the network type– Ethernet, WAN, wireless, etc. Often built-in to the motherboard. Many options - Single port, multi-port, copper, fiber.

Answer 14

Network Interface Card (NIC)

Question 15

Networking devices have different functional planes of operation– Data, control, and management planes. Split the functions into separate logical units– Extend the functionality and management
of a single device– Perfectly built for the cloud. Infrastructure layer / Data plane– Process the network frames and packets– Forwarding, trunking, encrypting, NAT. Control layer / Control plane– Manages the actions of the data plane– Routing tables, session tables, NAT tables– Dynamic routing protocol updat

Answer 15

SDN (Software Defined Networking)