CompTIA Network+ Practice Tests - Craig Zacker

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that it could not resolve the requested name.The DNS server attempts to resolve the requested name by checking its own resource records and cache, or failing that, by issuing its own iterative queries to other DNS servers.The DNS server attempts to resolve the requested name by checking its own resource records and cache, or failing that, by forwarding the name resolution request to another DNS server in a recursive query.The DNS server responds immediately if it is the authoritative server for the domain in which the requested name is located. Otherwise, it returns an error message stating that it could not resolve the requested name.

      236 What is the term used to refer to the DNS client mechanism that generates name resolution queries and sends them to DNS servers?RequestorForwarderAuthorityResolver

      237 Which of the following TCP/IP parameters, configured on an end system, specifies the IP address of a device that performs domain name resolution services?WINS Server AddressesDefault GatewayDNS Server AddressesSubnet Gateway

      238 Which IP address allocation method is not supported by Dynamic Host Configuration Protocol (DHCP)?ManualDynamicStableAutomatic

      239 On a Dynamic Host Configuration Protocol (DHCP) server, what is the name of the element you create to specify which IP addresses the server should assign to clients?RangeScopePoolSubnet

      240 Why is it necessary to use a relay agent to enable a Dynamic Host Configuration Protocol (DHCP) server to assign IP addresses to clients on other networks? (Choose all that apply.)Because DHCP requires a separate license for each subnet.Because clients cannot initiate an address assignment by contacting DHCP servers on other networks directly.Because DHCP must use the Transmission Control Protocol (TCP) to communicate with clients.Because the DHCP address assignment process relies on broadcast transmissions.

      241 Which of the following Domain Name System (DNS) resource records is used to resolve a hostname into an IPv6 address?MXPTRAAAACNAME

      242 Ralph has configured a server called NE6 to function as a web server. He does not want to change the server's existing name, but he wants it to also be accessible to clients using the name www . What Domain Name System (DNS) modification can Ralph make to accomplish this?Create an additional A resource record.Create a new CNAME resource record.Modify the existing A resource record.Create a new PTR resource record.

      243 Which of the following options should you configure on a Dynamic Host Configuration Protocol (DHCP) server to supply clients with a default gateway address?RouterTime ServerName ServerLPR Server

      244 Dynamic Host Configuration Protocol (DHCP) clients rely on which of the following types of transmissions to locate and initiate contact with DHCP servers on the local network?UnicastBroadcastMulticastAnycast

      245 Which of the following Domain Name System (DNS) resource record types specifies the IP addresses of the authoritative DNS servers for a particular zone?NSPTRMXSRVSOATXT

      246 Which of the following must you create on a DHCP server if you want it to always assign the same IP address to a particular computer?ExclusionScopeReservationRelay

      247 Which of the following DHCP address allocation methods enables the server to reclaim IP addresses when they are no longer in use by clients?AutomaticDynamicManualStatic

      248 Which of the following technologies enables the IP addresses assigned to clients by a Dynamic Host Configuration Protocol (DHCP) server to be automatically added to the DNS namespace?Reverse name resolutionDynamic DNSAutomatic allocationHOSTS

      249 Which of the following is a tool that integrates DHCP and DNS so that each is aware of the changes made by the other?HOSTSDHCPv6IPAMAPIPA

      250 Which of the following is the term used to describe the logical distance of a Network Time Protocol (NTP) server from the time source to which it is synchronized?LayerPathIterationStratum

      251 Which of the following protocols is used to synchronize computer clocks to a time signal provided by a server?TFTPHTTPSMTPNTP

      252 Which of the words in the fully qualified domain name (FQDN) www.paris.mydomain.org represents the topmost layer in the DNS namespace hierarchy?wwwparismydomainorg

      253 Which of the following Dynamic Host Configuration Protocol (DHCP) options prevents the client from transmitting IP datagrams that circulate endlessly around the network?Interface MTUDefault IP TTLARP cache timeoutTCP keepalive interval

      254 In designing a network for a client, Ed has decided to use both internal and external DNS servers. Which of the following resources should Ed register with the external DNS server? (Choose all that apply.)Company database serversInternet web serversIncoming email serversDomain controllers

      255 Ralph is concerned that the IP address scope of available leases on his DHCP server is nearly exhausted. What happens to DHCP clients when there are no IP addresses left in the scope for assignment?Clients are assigned a 0.0.0.0 address.Clients self-assign APIPA addresses.Client DHCP requests are forwarded to another DHCP server.Clients are forced to share IP addresses.

      256 Alice is the administrator of a subnet for which she has been allotted 100 IP addresses. She has installed a DHCP server with a scope containing all 100 available addresses for lease. There are currently 99 clients configured to use the DHCP server, many of which are mobile devices, and Alice fears that systems frequently leaving and rejoining the network might cause the scope of available leases to be exhausted. Which of the following adjustments can help to prevent this from happening?Increase the lease time for the scope.Decrease the lease time for the scope.Install a second DHCP server.Create a second scope for the subnet.

      257 DHCP clients use broadcast messages to contact a DHCP server on the local subnet. Which of the following are mechanisms by which DHCP broadcast messages can be forwarded to a DHCP server on another subnet when there is none on the local subnet? (Choose all that apply.)DHCP relayUDP forwardingZone transferIP helper

      258 Which of the following mechanisms enables administrators to maintain current DNS database information on multiple name servers, for fault tolerance and load balancing purposes?Multi-master replicationUDP forwardingIterative queryZone transfer

      259 Which of the following Storage Area Network (SAN) protocols are capable of sharing a network medium with standard Local Area Network (LAN) traffic? (Choose all that apply.)iSCSIFibre ChannelFCoEInfiniBand

      260 Which of the following protocols is not used for Storage Area Networks (SANs)?iSCSIFCoEVoIPFibre Channel

      261 Which of the following technologies do iSCSI initiators use to locate iSCSI targets on the network?Active DirectoryICMPDNSiWINSiSNS

      262 What is the highest possible data transfer rate on a Storage Area Network (SAN) using Fibre Channel?8 Gbps16 Gbps32 Gbps128 Gbps256 Gbps

      263 In its primary functionality, a network attached storage (NAS) device is most closely associated with which of the following devices?Failover clusterFile serverJBODRAID

      264 Which of the following statements about the differences between Network Attached Storage (NAS) and Storage Area Networks (SANs) are true? (Choose all that apply.)NAS provides file-level storage access, whereas SAN provides block-level storage access.NAS devices typically contain integrated iSCSI targets.SAN devices have an operating system, whereas NAS devices do not.NAS devices typically provide a filesystem, whereas SAN devices do not.

      265 Which of the following statements specify advantages of FCoE over the original Fibre Channel standard? (Choose all that apply.)FCoE is less expensive to implement than Fibre Channel.FCoE can share a network with standard IP traffic, whereas Fibre Channel cannot.FCoE is routable over IP networks, whereas Fibre Channel is not.FCoE uses standard Ethernet networking hardware.

      266 Which of the following are application layer protocols that Network Attached Storage (NAS) devices can use to serve shared files to clients on the network? (Choose all that apply.)CIFSNFSRDMAHTTP

      267 Which of the following is not one of the advantages of iSCSI over Fibre Channel? (Choose all that apply.)iSCSI is routable, whereas Fibre Channel is not.iSCSI is less expensive to implement than Fibre Channel.iSCSI includes its own internal flow control mechanism, whereas Fibre Channel does not.iSCSI can share the same network as standard local area network

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