Quản trị mạng Chapter6

Quản trị mạng

Dao Xuan Hung - Take Exam Exam questions 1 . Which two statements about Frame Relay subinterface configurations are true? Any IP address must be removed from the physical interface. A subinterface is configured either multipoint or point-to-point. The physical interface and subinterface can each be configured with IP addresses. The configuration must be added to the D channel. 2 . What are two results of issuing the following command: frame-relay map ip 192.168.1.2 100 Inverse ARP is enabled. Inverse ARP is disabled. Split horizon is enabled Split horizon is disabled. IP address 192.168.1.2 is dynamically mapped to DLCI 100. IP address 192.168.1.2 is statically mapped to DLCI 100. 3 . Frame Relay mapping works by telling a router that to get to a certain device, it must use a certain DLCI. What is the mapping default on a Cisco router? Manual configuration of mappings Inverse ARP RARP ARP 4 . What is true regarding Frame Relay subinterfaces? The IP addresses of the subinterfaces must match The IP addresses of the subinterfaces must be the same as the physical interface The subinterfaces don’t need IP addresses because they take the address of the physical interface You must take the IP address off of the physical interface 5 . A Frame Relay PVC is reported as in INACTIVE state on the router. What is the possible cause? PVC is not configured on local router. PVC is not configured on the Frame Relay switch. PVC is in DOWN state on the remote router. PVC is in DELETED state on the remote router. 6 . Which of the following are true? Choose three. The DLCI is a local identifier between the router and the telco switch Routers connected on opposite sides of the cloud must use different DLCI’s Routers connected on opposite sides of the cloud can use the same DLCI’s On your side, you must map the remote interface to your local DLCI On your side, you must map your interface to your local DLCI 7 . Which two are characteristics of Frame Relay? Medium cost High reliability Circuit-switched Branch site connectivity 8 . Serial0 on a router is configured with the command “encapsulation frame-relay”. What can cause the output from the show interface command to indicate: Serial0 is up, line protocol is down? No carrier signal IP subnet mismatch LAPF state, down LMI type mismatch No IP address configured 9 . Why would you use Frame Relay subinterfaces? It’s better to have many interfaces to split up traffic To avoid reachability issues brought on by split horizon To take advantage of authentication issues You would not want to use subinterfaces when using Frame Relay 10 . What are two advantages of dedicated leased lines over FR connections? lower cost full guaranteed bandwidth more control over the connection better suited for multiple branch locations 11 . Read And Answer the question: A B C D 12 . Which command will change the specified Frame Relay encapsulation for a specific PVC on an interface? no frame-relay encapsulation ietf no frame-relay encapsulation cisco encapsulation frame-relay ietf frame-relay map ip 10.160.2.1 100 broadcast ietf 13 . When a router throttles network traffic based on congestion notification in a Frame Relay network, where does the router get the information from? BECN packets FECN packets Datalink layer Frame Relay statistics TTL statistics 14 . What are the three possible states of a Frame Relay permanent virtual circuit (PVC)? Init Active Down Inactive Deleted Operational 15 . What command would you use to show Frame Relay connections, traffic, and statistics? show frame-relay pvc show frame-relay statistics show frame-relay traffic show frame-relay connections 16 . Which three statements about Frame Relay are true? It is available to run on SVC It is a Layer 2-based technology It is a reliable transport technology It is available in all countries of the world It is a connection-oriented datalink technology 17 . Read and Answer question: A B C D 18 . Refer to the following. What is the possible problem? Frame Relay encapsulation mismatch. Frame Relay LMI type mismatch. Missing routing table entry. Missing inverse ARP entry. Missing MAC address Showing page 1 of 1 : 1Go! © 2004 HanoiCTT. All rights reserved. 123doc.vn