必威体育精装版10月CCNA题库word版400~500题.docVIP

QUESTION 401 Which of the following describes the roles of devices in a WAN? (Choose three.) A. A CSU/DSU terminates a digital local loop B. A modem terminates a digital local loop C. A CSU/DSU terminates an analog local loop D. A modem terminates an analog local loop E. A router is commonly considered a DTE device F. A router is commonly considered a DCE device QUESTION 402 How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates? A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub- interface B. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic C. Configure many sub-interfaces on the same subnet D. Configure a single sub-interface to establish multiple PVC connections to multiple remote router Interfaces QUESTION 403 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 QUESTION 404 As a CCNA candidate, you must have a firm understanding of the IPv6 address structure. Refer to IPv6 address, could you tell me how many bits are included in each filed? A. 24 B. 4 C. 3 D. 16 QUESTION 405 Refer to the exhibit. How many broadcast domains exist in the exhibited topology? A. one B. two C. three D. four E. five F. six QUESTION 406 Refer to the exhibit. The network administrator has created a new VLAN on Switch1 and added host C and host D. The administrator has properly configured switch interfaces FastEthernet0