问题：单选题A network administrator has been receiving work orders about poor voice quality crossing a branch T1. The cause is determined to be users running high bandwidth file sharing applications across the T1 sending large packets delaying the smaller voice st...
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问题：单选题In an environment with STP disabled, which of the following is the MOST likely cause of the exponential increase in repeated packets transferred through the network?（）A Incorrect subnet maskB Mismatched MTUC Switching loopD VLAN mismatch...
问题：多选题An administrator needs to authenticate users to the network, authorize network activities, and account for activities done. Which of the following are services that will BEST meet these goals?（）(Select TWO).ATACACS+BRADIUSCKerberosD802.1XERRAS...
问题：单选题Which of the following is an invalid IPv4 address?（）A 225.0.0.1B 254.254.0.0C 256.0.0.4D 224.2.1.4...
问题：单选题A section of the building has been having intermittent connectivity problems lately. An action plan and solution has been created. Which of the following steps would an administrator perform NEXT?（）A Document the solution and process.B Establish the mo...
问题：单选题Which of the following LAN technologies is considered fast Ethernet and uses two pairs of cabling,one pair for sending and the other pair for receiving?（）A 100Base-T4B 100Base-TXC 100Base-XD 100Base-FX...
问题：单选题A user reports that their laptop does not have network connectivity, but was working fine last week. The technician executes IPCONFIG to see what the IP address is but it comes up with a 169.254.254.1 address. This address is not part of the company's ...
问题：单选题Which of the following holds multiple connections and is usually maintained by the telephone company?（）A DemarcB IDFC MDFD 110 block...
问题：单选题Which of the following is required if ports from VLANs on two separate switches need to broadcastto each other?（）A Port mirroringB VPNC TrunkingD Port authentication...
问题：单选题Which of the following ports does POP3 services use, by default?（）A 25B 110C 143D 443...
问题：单选题Which of the following is an EGP routing protocol?（）A IGPB OSPFC BGPD RIP...
问题：单选题Which of the following protocols uses port 119, by default?（）A NNTPB NTPC TFTPD FTP...
问题：单选题Keyword and blacklist filtering would be handled at which level in a network?（）A Layer 2 managed switchB DHCP serverC Hardware firewallD Bridge...
问题：单选题Which of the following WAN technologies modulates 24 channels into a 1 5Mbps signal?（）A ISDNB PSTNC OC-2D T1...
问题：单选题An administrator is unable to ping a workstation. Which of the following tools would BEST help toresolve the issue?（）A Cable testerB MultimeterC Toner probeD Protocol analyzer...
问题：单选题Data encryption and decryption occurs at which layer of the OSI model?（）A TransportB PresentationC SessionD Application...
问题：单选题An administrator is concerned about users utilizing the company's wireless signal with their personal laptops. Which of the following is the BEST method to use to prevent unauthorized devices from using the company's wireless network?（）A Secure VPNB MA...
问题：单选题When configured. MPLS can increase routing redundancy by providing which of the following network topology types?（）A BusB MeshC MultipathD Ring...
问题：单选题Which of the following should be changed to secure access to a WAPs configuration management interface?（）A SSIDB WPA2C DHCPD Password...
问题：单选题Which of the following LAN technologies is defined as fast Ethernet?（）A 10Base-TB 100Base-TC 100Base-FXD 1000Base-T...
