The overcurrent relay （） the motor contactor when the motor exceeds its rated current.

相似题目

• you want to view the status of a frame relay connection. How to display the status of a Frame-Relay PVC？

  查看最佳答案

• Which of the motors for the devices listed below is fitted with an instantaneous overload relay?（）

  A . Fan B . Pump C . Winch D . Machine tool

  查看最佳答案

• When configuring Frame Relay using point-to-point subinterfaces, which of the following must not be configured?（）

  A . The local DLCI on each subinterface of the Frame Relay. B . The Frame Relay encapsulation on the physical interface. C . An IP address on the physical interface. D . The subinterface type as point-to-point

  查看最佳答案

• Which of the following statements represents the main difference between a relay and a contactor?（）

  A . Contactors control current and relays control voltage B . A relay is series connected and a contactor is parallel connected C . Contactors can handle heavier loads than relays D . Contactors are made from silver and relays are made from copper

  查看最佳答案

• Which of the following statements correctly describes the characteristics of a Frame Relay point-to-point subinterface?（）

  A . Needs to use Inverse ARP. B . Maps a single IP subnet per DLCI. C . Maps a single IP subnet across multiple DLCIs. D . Resolves NBMA (non broadcast multi access) split horizon issues. E . Requires use of the frame-relay map command. F . None of the above

  查看最佳答案

• Select the 3 best answers describing operation and configuration of Frame-Relay Inverse ARP.（）

  A . Dynamic address mapping uses Frame Relay Inverse ARP to request the next-hop protocol address for a specific connection on its known DLCI B . Responses to Inverse ARP requests are entered in an address-to-DLCI mapping table on the router or access server which is used to supply the next-hop protoco address or the DLCI for outgoing traffic C . Inverse ARP is enabled by default for all protocols enabled on the physical interface D . Inverse ARP is configured using the following command under the Interface configuration ’frame-relaymap dlci （dlci number） protocol protocol-address’ E . Inverse ARP in Frame-Relay is synonymous of ARP in Ethernet

  查看最佳答案

• Which of the following devices are protected from being motorized by a reverse-power relay?（）

  A . Alternators B . Wave guides C . Exciters D . Amplidyne

  查看最佳答案

• Which three are optional extensions of the Frame Relay Local Management Interface specification？（）

  A . switched virtual circuit B . virtual circuit status C . simple flow control D . multicasting E . permanent virtual circuit

  查看最佳答案

• The Neilson Farm has tried, without success, to use both Cisco fax relay and T.38 faxing services with Cisco Unified CallManager Express. The only faxing service that seems to work is fax pass-through. Which port type is connected to their fax device?（）

  A . FXO  B . FXS  C . ATA  D . FAX  E . E&M

  查看最佳答案

• Which statement is true about the configuration of AutoQoS on a Frame Relay interface？（）

  A . AutoQoS can be configured from a different subinterface if the DLCI is already assigned to one subinterface  B . Multilink PPP (MLP) over Frame Relay must be manually configured on low speed DLCIs  C . for low-speed Frame Relay DLCIs with Frame Relay-to ATM interworking, the AutoQoS cannot be configured if a virtual template is already configured for the DLCI  D . AutoQoS can be configured on a Frame Relay DLCI only if a map class is attached to the DLCI&e

  查看最佳答案

• The Frame Relay network in the diagram is not functioning properly. What is the cause of the problem?（）

  A . The Gallant router has the wrong LMI type configured B . Inverse ARP is providing the wrong PVC information to the Gallant router C . The S3 interface of the Steele router has been configured with the frame-relay encapsulation ietf command D . The frame-relay map statement in the Attalla router for the PVC to Steele is not correct E . The IP address on the serial interface of the Attalla router is configured incorrectly

  查看最佳答案

• The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command（）。

  A . This command should be executed from the global configuration mode B . The IP address 10.121.16.8 is the local router port used to forward data C . 102 is the remote DLCI that will receive the information D . This command is required for all Frame Relay configurations E . The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC

  查看最佳答案

• Which dose the frame-relay interface-dlinterface-dlcci command configure?（）

  A . remote DLCI on the main interface B . local DLCI on the main interface C . local DLCI on the subinterface D . remote DLCI on the subinterface

  查看最佳答案

• 过电流（overcurrent）

  查看最佳答案

• which command allows you to verify the encapsulation type （CISCO OR IETF） for a frame relay link？（）

  A . show frame-relay map B . show frame-relay lmi C . show inter serial D . show frame-relay pvc

  查看最佳答案

• We（）the distress signal on our own radio before the shore station relayed it to us.

  A . received alreadly B . have received C . had received D . was receiving

  查看最佳答案

• A new frame relay connection is being brought up. Which of the following are frame relay LMI type options that can be configured on this new link?（）

  A . EIA/TIA B . Q.932 C . Q.933A D . IEEE E . Cisco F . Annex D

  查看最佳答案

• Packed Cell Relay encapsulation with AToM inclues which of the following？（）

  A . Tunnel label B . VC-label C . 5-byte ATM header D . Payload E . 4 byte ATM header F . Support for 30 packed cell

  查看最佳答案

• What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）

  A . defines the source IP address that i s used in all broadcast packets on DLCI 202 B . defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP address C . defines the destination IP address that is used in all broadcast packets on DLCI 202 D . defines the DLCI on which packets from the 192.168.1.2 IP address are received

  查看最佳答案

• You are implementing a new frame relay network to provide connectivity between you offices. To do this, you set up the frame relay network using point-to-point subinterfaces.Which of the following does NOT need to be configured?（）

  A . The Frame Relay encapsulation on the physical interface. B . The local DLCI on each subinterface. C . An IP address on the physical interface. D . The subinterface type as point-to-point.

  查看最佳答案

• Inverse ARP is being used in the TestKing frame relay network. What is the purpose of Inverse ARP?（）

  A . To ma a known IP address to a MAC address B . To map a known DLCI to a MAC address C . To ma a known MAC address to an IP address D . To ma a known DLCI address to a IP address E . To ma a known IP address to a SPID address F . To ma a known SPID address to a MAC addre

  查看最佳答案

• Router R1 uses S0/0 to connect via a T/1 to the Frame Relay servicE. Five PVCs terminate on the serial link. Three PVCs (101, 102, and 103) are configured on subinterface S0/0.1, and one each (104 and 105) are on S0/0 .2 and S0/0.3. The configuration shows no configuration related to EIGRP WAN bandwidth control, and the bandwidth command is not configured at all.Which of the following is true about how IOS tries to limit EIGRP‘s use of bandwidth on S0/0？（）

  A.R1 limi ts EIGRP to around 250Kbps on DLCI 102 B.R1 limits EIGRP to around 250Kbps on DLCI 104 C.R1 limits EIGRP to around 150Kbps on every DLCI D.R1 does not limit EIGRP because noWAN bandwidth control has been configured

  查看最佳答案

• Which of the following devices are protected from being motorized by a reverse-power relay？

  A.Alternators B.Wave guides C.Exciters D.Amplidynes

  查看最佳答案

• The purpose of television monitors under the sea would be to relay______.

  A．instructions from the sea bed to the shore B．news from the shore to the sea bed C．information from the world to the sea bed D．information to the world from the sea bed

  查看最佳答案