CCNA 1 Chapter 3 Exam

CCNA 1 Chapter 3 Exam What method can be used by two computers to ensure that packets are not droppedbecause too much data is being sent too quickly? (Flow control) What type of communication will send a message to all devices on a local areanetwork? (broadcast) What process is used to place one message inside another message for transferfrom the source to the destination? (encapsulation) A web client is sending a request for a webpage to a web server. From theperspective of the client, what is the correct order of the protocol stack that is used toprepare the request for transmission? (HTTP, TCP, IP, Ethernet) Which statement is correct about network protocols? (They define how messages are exchanged between the source and the destination.) Which statement is true about the TCP/IP and OSI models? (The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.) What is an advantage of using standards to develop and implement protocols? (Products from different manufacturers can interoperate successfully.) What three application layer protocols are part of the TCP/IP protocol suite? (Choosethree.) (DHCP, DNS, FTP) What are proprietary protocols? (protocols developed by organizations who have control over their definition andoperation) What is an advantage of network devices using open standard protocols? (A client host and a server running different operating systems can successfullyexchange data.) Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of theTCP/IP model would be used? (application, transport, Internet, and network access layers) Which three layers of the OSI model are comparable in function to the applicationlayer of the TCP/IP model? (Choose three.) (application, presentation, session)

At which layer of the OSI model would a logical address be encapsulated? (network layer) Which PDU format is used when bits are received from the network medium by theNIC of a host? (frame) Which PDU is processed when a host computer is de-encapsulating a message atthe transport layer of the TCP/IP model? (segment) Refer to the exhibit. HostA is attempting to contact ServerB. Which two statementscorrectly describe the addressing that HostA will generate in the process? (Choosetwo.) (A frame with the destination MAC address of RouterA.A packet with the destination IP address of ServerB) Which address does a NIC use when deciding whether to accept a frame? (destination MAC address) What will happen if the default gateway address is incorrectly configured on a host? (The host cannot communicate with hosts in other networks.) Which characteristic describes the default gateway of a host computer? (the logical address of the router interface on the same network as the host computer) A computer in a given network is communicating with a specific group of computers.What type of communication is this? (multicast) Which protocol is responsible for controlling the size and rate of the HTTP messagesexchanged between server and client? (TCP) A user is viewing an HTML document located on a web server. What protocolsegments the messages and manages the segments in the individual conversationbetween the web server and the web client? (TCP) Which IEEE standard enables a wireless NIC to connect to a wireless AP that ismade by a different manufacturer? (802.11) What is a function of Layer 4 of the OSI model? (to describe the ordered and reliable delivery of data between source and destination) What is a benefit of using a layered model for network communications? (fostering competition among device and software vendors by enforcing the compatibilityof their products)

What is the general term that is used to describe a piece of data at any layer of anetworking model? (protocol data unit) Which statement accurately describes a TCP/IP encapsulation process when a PC issending data to the network? (Segments are sent from the transport layer to the internet layer) What statement describes the function of the Address Resolution Protocol? (ARP is used to discover the MAC address of any host on the local network.) Which address provides a unique host address for data communications at theinternet layer? (logical address) Which protocol is used by a computer to find the MAC address of the defaultgateway on an Ethernet network? (ARP)