CompTIA Network+ Practice Tests. Craig Zacker

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СКАЧАТЬ style="font-size:15px;">      10 At which layer of the Open Systems Interconnection (OSI) model are there TCP/IP protocols than can provide either connectionless or connection-oriented services to applications?PhysicalData linkNetworkTransportSessionPresentationApplication

      11 Which of the following layers of the Open Systems Interconnection (OSI) model typically have dedicated physical hardware devices associated with them? (Choose all that apply.)PhysicalData linkNetworkTransportSessionPresentationApplication

      12 At which layer of the Open Systems Interconnection (OSI) model is there a protocol that adds both a header and footer to the information that is passed down from an upper layer, thus creating a frame?PhysicalData linkNetworkTransportSessionPresentationApplication

      13 Identify the layer of the Open Systems Interconnection (OSI) model that controls the addressing, transmission, and reception of Ethernet frames, and also identify the media access control method that Ethernet uses.Physical layer; Carrier Sense Multiple Access with Collision Detection (CSMA/CD)Physical layer; Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)Data link layer; CSMA/CDData link layer; CSMA/CA

      14 At which layer of the OSI model do you find the protocol responsible for the delivery of data to its ultimate destination on an internetwork?Data linkNetworkSessionApplication

      15 Which of the following is not a protocol operating at the network layer of the OSI model?IPICMPIGMPIMAP

      16 Ed is a software developer who has been given the task of creating an application that requires guaranteed delivery of information between end systems. At which layer of the Open Systems Interconnection (OSI) model does the protocol that provides the guaranteed delivery run, and what type of protocol must Ed use?Data link layer; connectionlessNetwork layer; connection-orientedTransport layer; connection-orientedApplication layer; connectionless

      17 Which of the following devices operates only at the physical layer of the Open Systems Interconnection (OSI) model?HubBridgeSwitchRouter

      18 Alice is a network administrator designing a new Local Area Network (LAN). She needs to determine the type of cabling and the network topology to implement. Which layers of the Open Systems Interconnection (OSI) model apply to cabling and topology elements?Physical and data link layersData link and network layersNetwork and transport layersTransport and application layers

      19 Which layers of the Open Systems Interconnection (OSI) model do not have protocols in the TCP/IP suite exclusively dedicated to them? (Choose all that apply.)PhysicalData linkNetworkTransportSessionPresentationApplication

      20 The protocols at which layer of the Open Systems Interconnection (OSI) model use port numbers to identify the applications that are the source and the destination of the data in the packets?ApplicationPresentationTransportNetwork

      21 Which of the following is a correct listing of the Open Systems Interconnection (OSI) model layers, in order, from top to bottom?Physical, data link, transport, network, session presentation, applicationApplication, session, presentation, transport, network, data link, physicalPresentation, application, transport, session, network, physical, data linkSession, application, presentation, transport, data link, network, physicalApplication, presentation, session, transport, network, data link, physical

      22 At which of the Open Systems Interconnection (OSI) model layers do switches and bridges perform their basic functions?PhysicalData linkNetworkTransport

      23 On a TCP/IP network, flow control is a function implemented in protocols operating at which layer of the Open Systems Interconnection (OSI) model?PresentationSessionTransportNetwork

      24 Which layer of the Open Systems Interconnection (OSI) model defines the medium, network interfaces, connecting hardware, and signaling methods used on a network?PhysicalData linkNetworkTransportSessionPresentationApplication

      25 Which of the OSI model layers is responsible for syntax translation and compression or encryption?Data linkNetworkSessionPresentationApplication

      26 Which layer of the Open Systems Interconnection (OSI) model is responsible for transmitting signals over the network medium?PhysicalData linkNetworkTransportSessionPresentationApplication

      27 Specify the layer of the Open Systems Interconnection (OSI) model at which the Internet Protocol (IP) operates and whether it is connection-oriented or connectionless.Network; connection-orientedNetwork; connectionlessTransport; connection-orientedTransport; connectionless

      28 An Ethernet network interface adapter provides functions that span which two layers of the Open Systems Interconnection (OSI) model?Physical and data linkData link and networkNetwork and transportTransport and application

      29 Which of the following protocols operate at the application layer of the Open Systems Interconnection (OSI) model? (Choose all that apply.)HTTPSNMPICMPIGMPUDP

      30 Which layer of the Open Systems Interconnection (OSI) model would be responsible for converting a text file encoded using EBCDIC on the sending system into ASCII code, when required by the receiving system?ApplicationPresentationSessionPhysical

      31 Which of the following protocols operates at the network layer of the OSI model, but does not encapsulate data generated by an upper layer protocol for transmission over the network?IPUDPARPICMPTCP

      32 A client on a TCP/IP network is attempting to establish a session with a server. Which of the following correctly lists the order of the TCP flags raised in the Transmission Control Protocol (TCP) session establishment messages?SYN, ACK, SYN, ACKSYN, SYN, ACK, ACKSYN/ACK, SYN/ACKSYN, SYN/ACK, ACK

      33 Which of the following is the Maximum Transmission Unit (MTU) size for an Ethernet frame?512102415001518

      34 Which of the following Transmission Control Protocol (TCP) control bits is set to 1 to initiate the termination of a session?SYNURGFINENDPSH

      35 An electrician installing a new light fixture accidentally severs one of the LAN cables running through the dropped ceiling space. With which topology would the severed cable cause the greatest amount of disturbance to the network?BusStarLogical ringMesh

      36 Which of the following statements about a wired Local Area Network (LAN) is true?Wired LANs support only the star topology.Wired LANs support only the star and bus topologies.Wired LANs support only the star and ring topologies.Wired LANs can support ring, bus, or star topologies.

      37 Which of the following is an example of a hybrid topology?A workstation with two network interface cards, one of which is connected to a star network and one to a bus networkFour Ethernet switches connected using a bus topologyFour workstations, each with a separate network connection to each of the other threeFour Ethernet switches, each with a separate network connection to each of the other three

      38 Which type of network is typically confined to a small area, such as a single room, floor, or building?WANLANMANCAN

      39 Which type of network connects Local Area Networks (LANs) in distant locations?WANLANMANCAN

      40 Which of the following topologies requires the installation of terminating resistors at two locations?BusStarRingMesh

      41 Which of the following topologies is used by the majority of new Ethernet networks installed today?BusVirtual ringMeshHierarchical star

      42 Alice has constructed a five-node failover cluster in which all five servers are connected to a hard disk array using a dedicated Fibre Channel network. Which of the following terms describes this network arrangement?SANPANWANMAN

      43 Which of the following is not a technology typically used for СКАЧАТЬ