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Networking 5-9
| Question | Answer |
|---|---|
| What is the difference between a LAN and a WAN? (Choose 2) LANs have no cost; WANs have fees LANs are smaller in scope; WANs are larger in scope LANs are done by Internet Providers, WANs are done by home users | LANs are smaller in scope; WANs are larger in scope LANs have no cost; WANs have fees |
| Private WANs are dedicated for multiple customers True or false? | True |
| WANs are implemented using what logical topology designs? | • Point-to-Point Topology • Hub-and-Spoke Topology • Dual-homed Topology • Fully Meshed Topology • Partially Meshed Topology |
| Point To Point Topology does what? | Employs a point-to-point circuit between two endpoints and impementing a layer 2 transport service each network. |
| Dual-homed Topology | A dual-homed topology provides redundancy. Two hub routers are dual-homed and redundantly attached to three spoke routers across a WAN cloud. |
| Networks Grow into what networks? | Small Network Campus Network Branch Network Distributed Network |
| Fully and Partially Meshed Topologies are different in what way? | Number of connections needed |
| WAN connections are based on a | Carrier |
| What WAN carrier connection type is usable? | Dual or single carrier WAN |
| TIA and EIA stands for | Telecommunications Industry Association and Electronic Industries Alliance |
| ISO stands for | International Organization for Standardization |
| IEEE stands for | Institute of Electrical and Electronics Engineers |
| What layers are focused by WAN standards? | OSI Layers 1 and 2 |
| Layer 1 protocols include: | SDH, SONET and DWDM |
| SDH, SONET and DWDM stands for? | Synchronous Digital Hierarchy Synchronous Optical Networking Dense Wavelength Division Multiplexing |
| What is the use of DCE | DCE is used for provider communication and provide interface for subscribers across the WAN cloud |
| What is CPE? | Customer Premises Equipment includes the DCE and DTE devices located on the enterprise, including subscriber relations with the service provider. |
| Layer 2 Protocols do what? | Defines how data will be encapsulated. i.e PPP, HDLC protocols. |
| What is the use of DTE | This is the device that connects the subscriber LANs to the WAN communication device (i.e., DCE). |
| What is the Point of Presence? | Points where the subscriber connects to the service provider network. |
| What is the demarcation point? | Location where separation of CPE from service provider equipment |
| What is the local loop/ last mile? | Actual cables connecting the CPE to the Central office (CO) |
| What is the Central Office | Local service provider facility or building that connects CPE to the provider |
| What is the Backhaul network | Connects access nodes of the service provider network. |
| What are the types of toll network? | This includes backhaul, long-haul, all-digital, fiber-optic communications lines, switches, routers, and other equipment inside the WAN provider network. |
| What is the Backbone network | Large, high-capacity networks used to interconnect service provider networks and to create a redundant network. |
| Voiceband Modem is also known as | Also known as dial-up modem. |
| DSL Modem and Cable Modems are referred to as: | Broadband Modems, connected to the DTE via ethernet |
| What does CSU and DSU mean? | Channel Service Unit/Data Service Unit |
| Wan Core Devices are | Consisted of Multiple High Speed Routers and Layer 3 Switches. |
| Network communication can be implemented using circuit-switched communication. (True/False) | True |
| A landline describes a telephone situated in a flexible location that is connected to the provider using copper or fiber-optic media. | False |
| What does PSTN and ISDN mean? | Public Service Telephone Network and Integrated Services Digital Network |
| Frame Relay | Is a simple Layer 2 non-broadcast multi-access (NBMA) WAN technology that is used to interconnect enterprise LANs. |
| What is ATM? | Asynchronous Transfer Mode. Allows transferring voice, video, and data through private and public networks. |
| What are the Modern Wan Types? | Dedoicated Broadband Packet Switched Internet-Based |
| Ethernet Wan is also known as | •Metropolitan Ethernet (Metro E) • Ethernet over MPLS (EoMPLS) • Virtual Private LAN Service (VPLS) |
| What are the benefits of ethernet wan? | Reduced Expenses Easier Integration Better Business Productivity |
| ISPs use what as layer 2 protocol? | PPP (point to point protocol) |
| Cable technology is a high-speed always-on connection technology that uses a coaxial cable from the satellite company to provide IP services to users | False |
| Optical Fiber goes by Fiber to the x too. | True |
| There is 4 types of Internet Based Broadband. | True. (Municipal Wifi, Cellular, Satelite and Wimax) |
Created by:
ITGaming