Networking Fundamentals Practice Test Questions with Correct Answers.docx

Networking Fundamentals Practice Test Questions with Correct A Peer communication allows error checking to occur on two separate layers simultaneously - Answer-True Many LANs and WANs contain several segments. Dividing a network into segments reduces performance - Answer-False The number of nodes on a network and the length of cable used influence the quality of communication on the network - Answer-True The IEEE standards for WLANs use unlicensed, but not unregulated, radio frequencies - Answer-True (IEEE = Institute of Electrical and Electronic Engineers) Bridges operate at the Network layer of the OSI model - Answer-False (Bridges operate at the Data-Link layer) The TCP/IP model explains how the protocol suite works to provide communications - Answer-True The Trivial File Transfer Protocol (TFTP) sends data using a reliable connection - Answer-False The size of the TCP window determines the number of acknowledgments sent for a given data transfer - Answer-True An IP address has 32 bits divided into four octets (four sets of eight binary digits) - Answer-True TCP/IP networks cannot use MAC addresses in communication - Answer-False The allocation of network numbers based on CIDR has led to the depletion of IP addresses - Answer-False Basic routing protocols such as RIP version 1 and IGRP support VLSM - Answer-False NetBEUI cannot scale into large internetworks because it cannot hold Network layer information in its network header - Answer-True Routers use metrics to determine which routes are better than other routes - Answer- True Static NAT must be used if you want clients outside your network to access services on your servers - Answer-True The term computer network, or simply , refers to the connection of two or more computers by some type of medium - Answer-network In a client/server network, the host the resources for the clients to use and provide security - Answer-server A(n) is a device that allows a computer or other device to connect to a network through the media - Answer-NIC (network interface card) A(n) is a network that uses a public communications infrastructure to facilitate private communication between a company LAN and remote employees - Answer-VPN As the layers pass the data through the protocol stack, the addition of the header and/or trailer is called - Answer-encapsulation usually refers to the physical layout of network cable and devices - Answer-Topology provide cell-based areas where wireless clients such as laptops and PDAs can connect to the network by associating with the acces point - Answer-Wireless Access Point is the breaking down of a single heavily populated network segment into smaller segments, or collision domains, populated by fewer nodes - Answer- Segmentation on the network or segment - Answer-virtual circuit When machines must share a wire and compete for available bandwidth with other machines, they experience - Answer-contention implementation and configuration of the TCP/IP protocol suite - Answer-request for comments The is the messaging or e-mail transfer protocol used with TCP/IP - Answer-SMTP (simple mail transfer protocol) Before two computes can communicate over TCP, they must synchronize their - Answer-ISN (initial sequence number) , also known as windowing, is a method of controlling packet flow between hosst - Answer-Sliding windows The resolves IP addresses to MAC addresses for source hosts that know the IP address of the destination host but not the MAC address - Answer-ARP (address resolution protocol) The devised the hierarchical IP addressing structure - Answer-IANA (internet assigned numbers authority) is the sending of a stream of data (usually audio and video) to multiple computers simultaneously - Answer-Multicasting broadcasts are broadcasts for any subnet and use the IP adress 255.255.255.255 - Answer-Flooded The purpose of is to allow many IP subnets to be advertised as one - Answer-summarization solves the design problem of basic subnetting by allowing different masks on the subnets - Answer-VLSM (variable length subnet masking) Early networks were sometimes configured as networks, in which computers communicate with and provide services to their "peers" - Answer-peer to peer are protocols used by routers to make path determination choices and to share those choices with other routers - Answer-Routing protocols A(n) is a group of routers under the control of a single administration - Answer-autonomous system