问题：多选题Which of the following wireless standards can be used to avoid the 2.4GHz range?（） (Select TWO).A802.11gB802.1XC802.11bD802.1nE802.11a
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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Which of the following features should an administrator configure to allow an IDS to watch thetraffic on a switch?（）A ARP spoofingB VLANC MirroringD Spanning tree
问题：单选题Which of the following commands is used to display other computers running on the network?（）A hostnameB ipconfigC net viewD nslookup
问题：单选题Which of the following connector types is commonly identified by two rows of pins with four in onerow and five in the other?（）A DB-9B RJ-45C SCD BNC
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A second network card in a server that activates if the primary card fails is an example of which of the following network performance optimization?（）A Load balancingB QoSC High availabilityD Fault tolerance
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 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 is trying to connect their new desktop to the network but is unable to get an IP address. The technician tests the cable and finds that there are too many open pairs. Which of the following wiring standards needs to be used in the replacement cable?（）A 568BB CrossoverC 569-AD 607-A
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 subnet. Which of the following MOST likely identifies this address type?（）A MulticastB DHCPC APIPAD Broadcast
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 most probable cause.C Implement and test the solution.D Identify additional symptoms and problems
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 MAC filteringC IP filteringD Static IP addresses
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Which of the following wireless standards was the FIRST standard to be ratified and is used to support legacy wireless devices?（）A 802.11aB 802.11gC 802.11bD 802.11n
问题：单选题Which of the following is a secure method of copying information over a public network?（）A SCPB SMTPC SNMPD TFTP
问题：单选题Which of the following is the purpose of QoS?（）A Load balance traffic across multiple LAN and WAN links.B Increase speed of network traffic.C Classify, mark, and prioritize traffic on WAN and LAN linksD Guarantee traffic delivery.
问题：单选题A company is about to install a second network connect on with a new ISP. Which of the followingrouting protocols is the BEST choice?（）A IS-ISB BGPC OSPFD RIP
