What information is used by a switch to forward an Ethernet frame to its destination?（）A、IP addressB、destination MAC addressC、ARP table entryD、FCS checksum
What information is used by a switch to forward an Ethernet frame to its destination?（）
- A、IP address
- B、destination MAC address
- C、ARP table entry
- D、FCS checksum
相关考题：
The Importance of Information in the Supply Chain Information is important because it provides the facts that supply chain managers use to make decisions. Without information, a manger will not know what customers want, how much inventory is in stock and when more products should be produced and shipped. In short, without information, a manager can only make decisions blindly. Managers must understand how information is gathered and analyzed. This is where information technology comes into play. Information technology serves as the eyes and ears of management in a supply chain, capturing and delivering the information necessary to make a good decision. For instance, an IT system at a personal computer manufacturer may help a manager analyze the information and recommend an action. The manager can use the remaining chips first, then look at demand forecast, and determine whether to order more chips. There are four reasons why timely and accurate information has become more important for effective logistics system design and operations. First, customers recognize information about order status, product availability, delivery schedule, and shipment tracking as necessary elements of total customer service. Then, managers realize that information can be used to reduce human resource requirements. What’s more, information increases flexibility with regard to how, when, and where resources may be used to gain strategic advantage. And finally, enhanced information transfer and exchange capability using the Internet is changing relationships between buyers and sellers and refining channel relationships.21. Information is so important that()A. managers can make decisions without itB. managers can only make decisions blindly without itC. managers will know nothing without it22. Information technology()A. could be used to gather and deliver information for?decision-makingB. is necessary to make a good decisionC. can be used to determine whether to order more chips23. Information can()A. help customers to know many things but not product availability.B. not be used to reduce human resource requirementsC. help to refine channel relationships24. If you are a manager, you will use information to().A. help improve customer serviceB. order more chipsC. know which staff member is not on duty and should be laid off25. The main point of this passage is about().A. how to use informationB. the importance of informationC. where to gather information
Since RAM is only active when the computer is on, your computer uses disk to store information even when the computer is off. Which of the following is true?(74).A．When your computer is on, only RAM is used to store information.B．When your computer is on, only disk drives are used to store information.C．When your computer is off, only RAM is used to store information.D．When your computer is off, only disk drives are used to store information.
To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?() A. prioritizationB. classificationC. fragmentationD. traffic shaping
What frame type is used to signal TSPEC reservation from a client?（）A、RSVPB、ADDTSC、802.11 association information elementsD、WMM capabilities exchange
What does the protocol field inside the PPP frame indicate？（）A、the protocol used to determine the authentication methodB、the protocol used to identify the data in the Information fieldC、the protocol used to carry the PPP frameD、the protocol used to decode the FCS fieldE、the protocol used to detect the number of padding bytes
Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information?（）A、the amount of available ROMB、the amount of available flash and RAM memoryC、the version of the bootstrap software present on the routerD、show versionE、show processesF、show running-config
What is the function of the AJB bits on DS1 using Extended Super Frame （ESF）？（）A、It is used for signaling on-hook and off-hook statusB、It carries CRC information for error detectionC、It is used for a control and performance informationD、It is used for a frame’s synchronization and alignment
What is true of standard access control lists when applied to an interface to control inbound or outbound traffic？（）A、The best match of the ACL entries will be used for granularity of control.B、They use source IP information for matching operations.C、They use source and destination IP information for matching operations.D、They use source IP information along with protocol-type information for finer granularity of control.
What information is displayed by the command cat/proc/dma？（）A、 whether DMA is enabledB、 which DMA channels are in useC、 which DMA mode is in useD、 general information about DMA on the machine
What is used to gather information on a Windows host that will be used for determining the optimum configuration of an IBM System Storage DS8700（）A、Disk MagicB、PerfMonC、iostatD、Tivoli Storage Productivity Center for Data
What is used to gather information on a Windows host that will be used for determining the optimum configuration of an IBM System Storage DS8100（）A、Disk MagicB、PerfMonC、iostatD、TotalStorage Productivity Center for Data
单选题What does the protocol field inside the PPP frame indicate？（）Athe protocol used to determine the authentication methodBthe protocol used to identify the data in the Information fieldCthe protocol used to carry the PPP frameDthe protocol used to decode the FCS fieldEthe protocol used to detect the number of padding bytes
单选题What information is used by a switch to forward an Ethernet frame to its destination?（）AIP addressBdestination MAC addressCARP table entryDFCS checksum
单选题What information is displayed by the command cat/proc/dma？（）A whether DMA is enabledB which DMA channels are in useC which DMA mode is in useD general information about DMA on the machine
单选题What is the functionality of redundant interfaces （reth） in a chassis cluster？（）Areth interfaces are used only for VRRP.Breth interfaces are the same as physical interfaces.Creth interfaces are pseudo-interfaces that are considered the parent interface for two physical interfaces.DEach cluster member has a reth interface that can be used to share session state information with the other cluster members.
单选题To ensure voice packets are kept within the Committed Information Rate （CIR） of a Frame Relaylink， what should be used in the CPE？（）A prioritizationB classificationC fragmentationD traffic shaping
单选题What is the function of the AJB bits on DS1 using Extended Super Frame （ESF）？（）AIt is used for signaling on-hook and off-hook statusBIt carries CRC information for error detectionCIt is used for a control and performance informationDIt is used for a frame’s synchronization and alignment
多选题Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information?（）Athe amount of available ROMBthe amount of available flash and RAM memoryCthe version of the bootstrap software present on the routerDshow versionEshow processesFshow running-config
单选题What is used to provide read access to QoS configuration and statistics information on Cisco platforms thatsupport Modular QoS CLI （MQC）？（）ACisco NBAR DiscoveryBCisco AutoQoSCCisco Class-Based QoS MIBDCisco SDM QoS WizardECDP
单选题The $HOME/.netrc file contains information used by the automatic login feature of what command？（）ArshBftpCsshDrlogin
单选题What is true regarding Autonomous Systems （AS ）？（）AAS numbers are assigned by the IANABAS numbers are used by BGP （Border Gateway protocol ） to exchange IP routing information with neighboring ASCIn the internet， an Autonomous System （AS） is a collection of IP networks and routers under the controlDAll of the Above
单选题ATM carries IP and PPP information with ATM cells. What ATM adaptation Layer is used when an ATMcell carries IP packets and PPP frames？（）AAAU2BAAL3CAAL4DAAL5
单选题What is true of standard access control lists when applied to an interface to control inbound or outbound traffic？（）AThe best match of the ACL entries will be used for granularity of control.BThey use source IP information for matching operations.CThey use source and destination IP information for matching operations.DThey use source IP information along with protocol-type information for finer granularity of control.
单选题To ensure voice packets are kept within the Committed Information Rate (CIR) of a Frame Relay link, what should be used in the CPE?（）AprioritizationBclassificationCfragmentationDtraffic shaping
多选题What three pieces of information can be used in an extended access list to filter traffic (Choose three.)（）。AprotocolBVLAN numberCTCP or UDP port numbersDsource switch port numberEsource IP address and destination IP addressFsource MAC address and destination MAC address
单选题What frame type is used to signal TSPEC reservation from a client?（）ARSVPBADDTSC802.11 association information elementsDWMM capabilities exchange