As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen?() A. The data is moving from 10BASE-TX to 100BASE-TX.B. The WAN encapsulation type has changed.C. The data format has changed from analog to digital.D. The source and destination hosts are in the same subnet.E. The source and destination MAC addresses have changed.
As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen?()
A. The data is moving from 10BASE-TX to 100BASE-TX.
B. The WAN encapsulation type has changed.
C. The data format has changed from analog to digital.
D. The source and destination hosts are in the same subnet.
E. The source and destination MAC addresses have changed.
相关考题：
CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)A. To determine the status of network services on a remote deviceB. To obtain the IP Address of a connected device in order to telnet to the deviceC. To verify the type of cable interconnecting two devicesD. To verify Layer 2 connectivity between two devices when Layer 3 failsE. To obtain VLAN information from directly connected swticehsF. To determine the status of the routing protocols between directly connected routersG. To support automatic network failover during outages
What are two routing requirements for a device to communicate with another device?() A. end-to-end communications pathB. hosts on the same Layer 2 broadcast domainC. hosts on the same Layer 3 broadcast domainD. routing information on participating Layer 3 devices
Which of the following correctly describe steps in the OSI data encapsulation process?() A. Transport layer divides a data stream into segments adds reliability flow control informationB. Data link layer adds physical source destination address an FCS to the segmentC. Packets are created when the network layer encapsulate a frame with source destination host address protocol related control informationD. Packets are created when the network layers adds layers 3 address control information to a segmentE. The presentation layer translated bits into bits into voltages for transmission across the physical link
What are two reasons a network administrator would use CDP?() A. to verify the type of cable interconnecting two devicesB. to determine the status of network services on a remote deviceC. to obtain VLAN information from directly connected switchesD. to verify Layer 2 connectivity between two devices when Layer 3 failsE. to obtain the IP address of a connected device in order to telnet to the deviceF. to determine the status of the routing protocols between directly connected routers
What can a network administrator utilize by using PPP Layer 2 encapsulation (Choose three.) ()。 A.VLAN supportB.compressionC.authenticationD.sliding windowsE.multilink supportF.quality of service
Overlay Transport Virtualization （OTV） overlay interface is a logical multiaccess and multicast- capable interface that must be explicitly defined by the user and where the entire OTV configuration is applied. Which statements are true about OTV overlay interface？（）A、 When an OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the overlay interface.B、 The OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the join interface toward the routed domain.C、 When the OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the join interface.D、 The OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the overlay interface toward the routed domain.
For what two purposes does the Ethernet protocol use physical addresses？（）A、to uniquely identify devices at Layer 2B、to allow communication with devices on a different networkC、to differentiate a Layer 2 frame from a Layer 3 packetD、to establish a priority system to determine which device gets to transmit firstE、to allow communication between different devices on the same networkF、to allow detection of a remote device when its physical address is unknown
As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the devicE.For what two reasons can this happen? （）A、The data is moving from 10BASE-TX to 100BASE-TX.B、The WAN encapsulation type has changed.C、The data format has changed from analog to digital.D、The source and destination hosts are in the same subnet.E、The source and destination MAC addresses have changed.
In which two locations in an enterprise network can an IPS sensor be placed？ （）A、 bridging VLANs on two switchesB、 bridging two VLANs on one switchC、 between two Layer 2 devices with trunkingD、 between two Layer 2 devices without trunkingE、 between a Layer 2 device and a Layer 3 device with trunking
As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen?（）A、The data is moving from 10BASE-TX to 100BASE-TX.B、The WAN encapsulation type has changed.C、The data format has changed from analog to digital.D、The source and destination hosts are in the same subnet.E、The source and destination MAC addresses have changed.
What are two reasons a network administrator would use CDP (Choose two.)（）。A、to verify the type of cable interconnecting two devicesB、to determine the status of network services on a remote deviceC、to obtain VLAN information from directly connected switchesD、to verify Layer 2 connectivity between two devices when Layer 3 failsE、to obtain the IP address of a connected device in order to telnet to the deviceF、to determine the status of the routing protocols between directly connected routers
What can a network administrator utilize by using PPP Layer 2 encapsulation (Choose three.) （）。A、VLAN supportB、compressionC、authenticationD、sliding windowsE、multilink supportF、quality of service
What are two reasons a network administrator would use CDP?（）A、to verify the type of cable interconnecting two devicesB、to determine the status of network services on a remote deviceC、to obtain VLAN information from directly connected switchesD、to verify Layer 2 connectivity between two devices when Layer 3 failsE、to obtain the IP address of a connected device in order to telnet to the deviceF、to determine the status of the routing protocols between directly connected routers
when a user clicks a link in the left frame of the Review application, the linked data displays in the frame on the right. What did Kristin to do allow this to happen?（）A、entered the name of the target frame in hotspot propertiesB、entered the name of the target in frameset propertiesC、entered the position of the target frame in frame propertiesD、entered the position of target frame in hotspot properties. a name other than location
多选题Which of the following correctly describe steps in the OSI data encapsulation process?（）ATransport layer divides a data stream into segments adds reliability flow control informationBData link layer adds physical source destination address an FCS to the segmentCPackets are created when the network layer encapsulate a frame with source destination host address protocol related control informationDPackets are created when the network layers adds layers 3 address control information to a segmentEThe presentation layer translated bits into bits into voltages for transmission across the physical link
多选题What can a network administrator utilize by using PPP Layer 2 encapsulation? (Choose three.)（）AVLAN supportBcompressionCauthenticationDsliding windowsEmultilink supportFquality of service
多选题What are two reasons a network administrator would use CDP? （）Ato verify the type of cable interconnecting two devicesBto determine the status of network services on a remote deviceCto obtain VLAN information from directly connected switchesDto verify Layer 2 connectivity between two devices when Layer 3 failsEto obtain the IP address of a connected device in order to telnet to the deviceFto determine the status of the routing protocols between directly connected routers
多选题What are two routing requirements for a device to communicate with another device?（）Aend-to-end communications pathBhosts on the same Layer 2 broadcast domainChosts on the same Layer 3 broadcast domainDrouting information on participating Layer 3 devices
多选题You work as a network technician. Your boss is interested in the QoS technology in the context ofvideo traffic. What can be said of application of this technology in this type of network？（）AThe access layer is the initial point at which traffic enters the network. Traffic is marked （orremarked） at Layers 2 and 3 by the access switch as it enters the network， or is trusted that it isentering the network with the appropriate tagBNo traffic marking occurs at the core layer. Layer 2/3 QoS tags are trusted from distributionlayer switches and used to prioritize and queue the traffic as it traverses the coreCTraffic inbound from the access layer to the distribution layer can be trusted or reset dependingupon the ability of the access layer switches. Priority access into the core is provided based onLayer 3 QoS tagsDIP precedence， DSCP， QoS group， IP address， and ingress interface are Layer 2 characteristics that are set by the access layer as it passes traffic to the distribution layer. Thedistribution layer， once it has made a switching decision to the core layer， strips these offEMAC address， Multiprotocol Label Switching （MPLS）； the ATM cell loss priority （CLP） bit， theFrame Relay discard eligible （DE） bit， and ingress interface are established by the voicesubmodule （distribution layer） as traffic passes to the core layerFThe distribution layer inspects a frame to see if it has exceeded a predefined rate of trafficwithin a certain time frame， which is typically a fixed number internal to the switch. If a frame isdetermined to be in excess of the predefined rate limit， the CoS value can be marked up in a waythat results in the packet being dropped
多选题As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the devicE.For what two reasons can this happen? （）AThe data is moving from 10BASE-TX to 100BASE-TX.BThe WAN encapsulation type has changed.CThe data format has changed from analog to digital.DThe source and destination hosts are in the same subnet.EThe source and destination MAC addresses have changed.
多选题For what two purposes does the Ethernet protocol use physical addresses？（）Ato uniquely identify devices at Layer 2Bto allow communication with devices on a different networkCto differentiate a Layer 2 frame from a Layer 3 packetDto establish a priority system to determine which device gets to transmit firstEto allow communication between different devices on the same networkFto allow detection of a remote device when its physical address is unknown
多选题Which of the following correctly describe steps in the OSI data encapsulation process?（）AThe transport layer divides a data stream into segments and may add reliability and flow control information.BThe data link layer adds physical source and destination addresses and an FCS to the segment.CPackets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information.DPackets are created when the network layer adds Layer 3 addresses and control information to a segment.EThe presentation layer translates bits into voltages for transmission across the physical link.
多选题In which two locations in an enterprise network can an IPS sensor be placed?（）Abridging VLANs on two switchesBbridging two VLANs on one switchCbetween two Layer 2 devices withtrunkingDbetween two Layer 2 devices withouttrunkingEbetween a Layer 2 device and a Layer 3 device withtrunking
多选题In which two locations in an enterprise network can an IPS sensor be placed？（）Abridging VLANs on two switchesBbridging two VLANs on one switchCbetween two Layer 2 devices with trunkingDbetween two Layer 2 devices without trunkingEbetween a Layer 2 device and a Layer 3 device with trunking
多选题As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen?（）AThe data is moving from 10BASE-TX to 100BASE-TX.BThe WAN encapsulation type has changed.CThe data format has changed from analog to digital.DThe source and destination hosts are in the same subnet.EThe source and destination MAC addresses have changed.
多选题What are two reasons a network administrator would use CDP (Choose two.)（）。Ato verify the type of cable interconnecting two devicesBto determine the status of network services on a remote deviceCto obtain VLAN information from directly connected switchesDto verify Layer 2 connectivity between two devices when Layer 3 failsEto obtain the IP address of a connected device in order to telnet to the deviceFto determine the status of the routing protocols between directly connected routers
多选题Overlay Transport Virtualization （OTV） overlay interface is a logical multiaccess and multicast- capable interface that must be explicitly defined by the user and where the entire OTV configuration is applied. Which statements are true about OTV overlay interface？（）AWhen an OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the overlay interface.BThe OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the join interface toward the routed domain.CWhen the OTV edge device receives a Layer 2 frame destined for a remote data center site， the frame is logically forwarded to the join interface.DThe OTV edge device performs the dynamic OTV encapsulation on the Layer 2 packet and sends it to the overlay interface toward the routed domain.