Craig Zacker - CompTIA Network+ Practice Tests

1.8 Summarize cloud concepts and connectivity options.Deployment modelsPublicPrivateHybridCommunityService modelsSoftware as a service (SaaS)Infrastructure as a service (IaaS)Platform as a service (PaaS)Desktop as a service (DaaS)Infrastructure as codeAutomation/orchestrationConnectivity optionsVirtual private network (VPN)Private-direct connection to cloud providerMultitenancyElasticityScalabilitySecurity implications

1 At which of the following layers of the Open Systems Interconnection (OSI) model do the protocols on a typical local area network (LAN) use media access control (MAC) addresses to identify other computers on the network?PhysicalData linkNetworkTransport

2 Which of the following organizations developed the Open Systems Interconnection (OSI) model?International Telecommunication Union (ITU-T)Comité Consultatif International Télégraphique et Téléphonique (CCITT)American National Standards Institute (ANSI)Institute of Electrical and Electronics Engineers (IEEE)International Organization for Standardization (ISO)

3 Which layer of the Open Systems Interconnection (OSI) model is responsible for the logical addressing of end systems and the routing of datagrams on a network?PhysicalData linkNetworkTransportSessionPresentationApplication

4 On a TCP/IP network, which layers of the Open Systems Interconnection (OSI) model contain protocols that are responsible for encapsulating the data generated by an application, creating the payload for a packet that will be transmitted over a network? (Choose all that apply.)PhysicalData linkNetworkTransportSessionPresentationApplication

5 What layer of the Open Systems Interconnection (OSI) model is responsible for translating and formatting information?PhysicalData linkNetworkTransportSessionPresentationApplication

6 Which of the following devices typically operates at the network layer of the Open Systems Interconnection (OSI) model?Proxy serverHubNetwork interface adapterRouter

7 Which layer of the Open Systems Interconnection (OSI) model provides an entrance point to the protocol stack for applications?PhysicalData linkNetworkTransportSessionPresentationApplication

8 Which layer of the Open Systems Interconnection (OSI) model is responsible for dialogue control between two communicating end systems?PhysicalData linkNetworkTransportSessionPresentationApplication

9 Some switches can perform functions associated with two layers of the Open Systems Interconnection (OSI) model. Which two of the following layers are often associated with network switching? (Choose all that apply.)PhysicalData linkNetworkTransportSessionPresentationApplication

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