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What does a Layer 2 switch use to decide where to forward a received frame?（）
- A、source MAC address
- B、source IP address
- C、source switch port
- D、destination IP address
- E、destination port address
- F、destination MAC address
参考答案
更多 “What does a Layer 2 switch use to decide where to forward a received frame?（）A、source MAC addressB、source IP addressC、source switch portD、destination IP addressE、destination port addressF、destination MAC address” 相关考题
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Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true? (Select two answer choices)A. The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.B. The DHCP Discover message uses UDP as the transport layer protocol.C. The DHCP Discover message uses a special Layer 2 multicast address as the destination address.D. The DHCP Discover message uses TCP as the transport layer protocol.E. The DHCP Discover message does not use a Layer 2 destination address.F. The DHCP Discover message does not require a transport layer protocol.
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After issuing the show interfaces terse command, you notice that the status of one interface is "up down". What does this indicate?"()
A.Layer 1 on the interface is up but Layer 2 is down.B.Layer 2 on the interface is up but Layer 3 has not been configured.C.The interface is administratively up but the link status is down.D.The interface is up but has been administratively turned off.
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What does a Layer 2 switch use to decide where to forward a received frame?()
A. source MAC addressB. source IP addressC. source switch portD. destination IP addressE. destination port addressF. destination MAC address
考题
Which two statements correctly describe a situation in which an Active／Standby Service Module design is being used?()
A. Troubleshooting is more complicated.B. Service and switch modules are underutilized.C. Layer 2 adjacency is required with the servers that use this design.D. Layer 3 adjacency is required with the servers that use this design.E. Load balancing will always occur across both access layer uplinks.
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Which two of these are correct regarding the recommended practice for distribution layer design based on the following configuration?()
A. use a Layer 2 link between distribution switchesB. use a Layer 3 link between distribution switchesC. use a redundant link to the coreD. use a Layer 3 link between distribution switches with route summarization
考题
What dose a Layer 2 switch use to decide where to forward a received frame?()
A.source MAC addressB.source IP addressC.source switch portD.destination IP addressE.destination port addressF.destination MAC address
考题
What dose a Layer 2 switch use to decide where to forward a received frame?（）A、source MAC addressB、source IP addressC、source switch portD、destination IP addressE、destination port addressF、destination MAC address
考题
Which of these recommended designs provides the highest availability?（）A、map the Layer 2 VLAN number to the Layer 3 subnetB、control route propagation to edge switches using distribute listsC、use a Layer 2 distribution interconnection link with HSRP or GLBPD、use a Layer 3 distribution interconnection link with HSRP or GLBPE、use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP
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What layer of the TMN （telecommunications management network） model does CTM fit into？（）A、Network management layerB、Element management layerC、Business management layerD、Network element layer
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Why will a switch never learn a broadcast address?（）A、Broadcasts only use network layer addressing.B、A broadcast frame is never forwarded by a switch.C、A broadcast address will never be the source address of a frame.D、Broadcast addresses use an incorrect format for the switching table.E、Broadcast frames are never sent to switches.
考题
Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true?（）A、The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.B、The DHCP Discover message uses UDP as the transport layer protocol.C、The DHCP Discover message uses a special Layer 2 multicast address as the destination address.D、The DHCP Discover message uses TCP as the transport layer protocol.E、The DHCP Discover message does not use a Layer 2 destination address.F、The DHCP Discover message does not require a transport layer protocol.
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How does a switch respond when it receives a message?（）A、It reads the Layer-5 information and sends the message directly to the intended computer.B、It reads the Media Access Control (MAC) address and broadcasts the message to all the computers that are connected to the switch.C、It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.D、It reads the Layer-5 information and broadcasts the message to all the computers that are connected to the switch.
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At which layer of the OSI model does the Spanning Tree Protocol （STP） operate at？（）A、Layer 5B、Layer 4C、Layer 3D、Layer 2E、Layer 1
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What is the function of the no switchport catalyst switch interface configuration command?（）A、Disables the interfaces to prevent traffic flowB、Clears all the configurations on the interfaceC、Switches the port from access mode to trunk modeD、Converts the port from physical Layer 2 port to physical Layer 3 port
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Which header or set of headers does CRTP compress？ （）A、Layer 2B、Layer 3C、Layer 4D、Layer 2 and Layer 3E、Layer 3 and Layer 4
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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
考题
Which two statements correctly describe a situation in which an Active/Standby Service Module design is being used?（）A、Troubleshooting is more complicated.B、Service and switch modules are underutilized.C、Layer 2 adjacency is required with the servers that use this design.D、Layer 3 adjacency is required with the servers that use this design.E、Load balancing will always occur across both access layer uplinks.
考题
Switch R1 is configured to use the VLAN Trunking Protocol （VTP）. What does R1 advertise in its VTP domain？（）A、The VLAN ID of all known VLANs，the management domain name，and the total number of trunk links on the switch.B、The VLAN ID of all known VLANs，a 1-bit canonical format （CF1 Indicator），and the switch configuration revision number.C、The management domain name，the switch configuration revision number，the known VLANs， and their specific parameters.D、A 2-byte TPID with a fixed value of 0x8100 for the management domain number，the switch configuration revision number，the known VLANs，and their specific parameters.E、None of the other alternatives apply.
考题
At which layer of the OSI model does error checking occur with IPv6?（）A、Layer 2B、Layer 3C、Layer 4D、Layer 7
考题
单选题What benefit results from implementation of Layer 3 switching versus Layer 2 switching in a fully meshed campus network？（）A
ease of IP address assignment versus use of external routersB
redundancy from trunking between distribution layer switchesC
provides first-hop redundancy to clientsD
allows inter-VLAN communication without requiring complexity of routing protocols
考题
单选题What does a Layer 2 switch use to decide where to forward a received frame?（）A
source MAC addressB
source IP addressC
source switch portD
destination IP addressE
destination port addressF
destination MAC address
考题
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
考题
多选题A customer has purchased a third-party switch to use for Layer 2 access with their Junos Pulse Access Controe Service. When configuring the switch on the Junos Pulse Access Control Service, the customer does not find a make/model entry for it . Which two actions should the customer take to make the switch work with the Junos Pulse Access Control Service?（）AAdd the switch to the Junos Pulse Access Control Service as a standard RADIUS.BAdd the switch to the Junos Pulse Access Control Service using the Any make/model.CAdd the switch as a firewall enforcer.DObtain and configure the RADIUS dictionary for the switch and use that vendor listing for the make/model.
考题
单选题How does a switch respond when it receives a message?（）A
It reads the Layer-5 information and sends the message directly to the intended computer.B
It reads the Media Access Control (MAC) address and broadcasts the message to all the computers that are connected to the switch.C
It reads the Media Access Control (MAC) address and sends the message directly to the intended computer.D
It reads the Layer-5 information and broadcasts the message to all the computers that are connected to the switch.
考题
单选题Which of these recommended designs provides the highest availability？（）A
map the Layer 2 VLAN number to the Layer 3 subnetB
control route propagation to edge switches using distribute listsC
use a Layer 2 distribution interconnection link with HSRP or GLBPD
use a Layer 3 distribution interconnection link with HSRP or GLBPE
use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP
考题
单选题What dose a Layer 2 switch use to decide where to forward a received frame?（）A
source MAC addressB
source IP addressC
source switch portD
destination IP addressE
destination port addressF
destination MAC address
考题
单选题What language does International NAVTEX use?（）A
RussianB
FrenchC
EnglishD
German
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