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- 1. Multiple ChoiceWhich protocol’s header would a Layer 4 device read and process?IPTCPARPHTTP
- 2. Multiple ChoiceWhat field in a TCP segment is used to determine if an arriving data unit exactly matches the data unit sent by the source?Source portAcknowledgement numberDiffServChecksum
- 3. Multiple ChoiceAt which OSI layer does IP operate?ApplicationTransportNetworkData Link
- 4. Multiple ChoiceWhich OSI layer is responsible for directing data from one LAN to another?TransportNetworkData LinkPhysical
- 5. Multiple ChoiceWhat kind of route is created when a network administrator configures a router to use a specific path between nodes?Trace routeStatic routeDefault routeBest path
- 6. Multiple ChoiceWhen a router can’t determine a path to a message’s destination, where does it send the message?Default gatewayRouting tableAdminstrative distanceGateway of last resort
- 7. Multiple ChoiceA routing protocol’s reliability and priority are rated by what measurement?Routing tableMTU (maximum transmission unit)LatencyAD (adminstrative distance)
- 8. Multiple ChoiceWhich routing protocol does an exterior router use to collect data to build its routing tables?RIPv2BGPOSPFIP
- 9. Multiple ChoiceWhat is the Internet standard MTU?65,535 bytes1,522 bytes1,500 bytes9,198 bytes
- 10. Multiple ChoiceWhich two protocols manage neighbor discovery processes on IPv4 networks?ICMP and ARPIPv4 and IPv6TCP and UDPBGP and OSPF
- 11. Multiple ChoiceWhich transmission characteristic is never fully achieved?LatencyThroughputBit rateBandwidth
- 12. Multiple ChoiceWhich kind of crosstalk occurs between wire pairs near the source of the signal?AlienTx/Rx reverseFEXTNEXT
- 13. Multiple ChoiceWhich kind of multiplexing assigns slots to nodes according to priority and need?WDMSTDMTDMCWDM
- 14. Multiple ChoiceWhat kind of cable uses BNC connectors? Which connector is likely to be used by cable TV?Coaxial cable, F-connectorTwisted-pair cable, RJ-11Copper cable, RJ-45Fiber-optic cable, MTRJ
- 15. Multiple ChoiceWhich of these categories of twisted-pair cable can support Gigabit Ethernet?Cat 5, Cat 6, Cat 7Cat 5e, Cat 6, Cat 3Cat 5e, Cat6a, Cat 7Cat 6, Cat 7a, Cat 5
- 16. Multiple ChoiceSuppose you’re creating patch cables to be used in a government office. What color wire goes in the first pin?White/orangeWhite/greenBrownBlue
- 17. Multiple ChoiceWhat is the earliest twisted-pair cabling standard that meets the minimum requirements for 10GBase-T transmissionCat 5eCat 5Cat 6aCat 7
- 18. Multiple ChoiceWhat type of fiber cable problem is caused when pairing a 50-micron core cable with a 62.5-micron core cable?Dity connectorsWavelength mismatchFiber type mismatchTx/Rx reverse
- 19. Multiple ChoiceWhich part of a toner and probe kit emits an audible tone when it detects electrical activity on a wire pair?TDRTone generatorTone locatorToner
- 20. Multiple ChoiceWhich fiber connector contains two strands of fiber in each ferrule?MTRJSCSTLC
- 21. Multiple ChoiceWhat is the lowest layer of the OSI model at which wired and wireless transmissions share the same protocols?Layer 4Layer 3Layer 2Layer 1
- 22. Multiple ChoiceWhat technology does Bluetooth use to take advantage of the 79 channels allocated to the Bluetooth band?ZigBeeDSSSRTS/CTSFHSS
- 23. Multiple ChoiceWhich one of the following wireless transmission types requires a clear LOS to function?BluetoothNFCInfraredWi-Fi
- 24. Multiple ChoiceWhich Bluetooth class has the highest power output?Class 1Class 2Class 3They all have equal power output
- 25. Multiple ChoiceA hacker takes advantage of an open Bluetooth connection to send a virus to a user’s smartphone. What kind of security breach has occurred?Data breachBluejackingWar drivingBluesnarfing
- 26. Multiple ChoiceA user swipes her smartphone across a tag on a poster to obtain showtimes for a movie she wants to see later that evening. What wireless technology transmitted the data?NFCBluetoothZ-WaveANT+
- 27. Multiple ChoiceWhich 802.11 standard functions in both the 2.4-GHz and 5-GHz bands?802.11g802.11ac802.11b802.11n
- 28. Multiple ChoiceWhich Carrier Sense technology is used on wireless networks to reduce collisions?CSMA/CD802.11CSMA/CASSID
- 29. Multiple ChoiceYou’ve just completed a survey of the wireless signals traversing the airspace in your employer’s vicinity, and you’ve found an unauthorized AP with a very strong signal near the middle of the 100-acre campus. What kind of threat do you need to report to your boss?Rogue APWar drivingBluesnarfingHidden node
- 30. Multiple ChoiceYou just settled in for some study time at the local coffee shop, and you pause long enough to connect your smartphone to the Wi-Fi so you can listen to some music while you study. As you’re about to sign in, you realize that you clicked on an SSID called “Free Coffee and Internet.” What kind of security trap did you almost fall for?Guest networkBluejackingEvil twinBrute force attack
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