INSY 3303 Exam 3 Review Questions and Answers 100% Pass

INSY 3303 Exam 3 Review Questions and Answers 100% Pass Access Point (AP) - Answer- a radio transceiver used on wireless LANs that enables the computers near it to communicate with each other and it also connects them into wired LANs. Backbone Designs - Answer- - switched backbones (designed for distribution layer) - routed backbones (designed for core layer) Backbone Network (BN) - Answer- -switched backbones -routed backbones -VLANs (Virtual Local Area Networks) What type of networks are used in buildings? (Building Network) - Answer- switched backbone networks which are used in the distribution layer. What type of networks are used on a campus? (Campus Network) - Answer- routed backbone networks which are used in the core layer. CIR (Committed Information Rate) - Answer- the data rate the PVC (Permanent Virtual Circuits) guarantees to transmit. Core Layer - Answer- The network layer that the campus backbone (routed backbone) is built on. CSMA/CD (Carrier Sense Multiple Access with Collision Detection) - Answer- A contention based media access control technique where computers wait until the circuit is free before transmitting, that can also detects collisions by jamming the signals. CSU/DSU (Channel Service Unit/Data Service Unit) - Answer- a device that is the WAN equivalent of a NIC that takes the outgoing packet and translates it to use the data link layer and network protocols used in the WAN. Distribution Layer - Answer- the network layer that building backbones (switched backbones) are built on. ESP (Encapsulating Security Payload) - Answer- an encapsulated packet that is encrypted using IPSec encryption and contains the IP packet, TCP segment and HTTP packet. Ethernet - Answer- a layer 2 protocol that operates at the data link layer developed by DEC, Xerox and Intel. Wired Ethernet (IEEE 802.3) Wireless Ethernet (IEEE 802.11) Forwarding Table - Answer- a table that lists the Ethernet address of the computer connected to each port on the switch. Load Balancer - Answer- (also called a virtual server) a device that acts as a traffic manager at the front of a new server farm. MAR (Maximum Allowable Rate) - Answer- the maximum rate that the network will attempt to provide, over and above the CIR. MDF (Main Distribution Facility) - Answer- The room containing the rack of equipment. Mesh Architecture - Answer- a network architecture where every computer is connected to every or most of the computers on a network. MPLS (Multiprotocol Label Switching) - Answer- an approach to improving QoS and the movement of packets with different layer-2 protocols through TCP/IP networks. NOS (network operating system) - Answer- the software that controls the network and provides the software that performs the functions ass