When a router converts analog signals to digital signals， what three steps are always included in the process？ （）

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  A . Create a parser view called "root view." B . Log in to the router as the root user. C . Enable the root view on the router. D . Enable role-based CLI globally on the router using the privileged EXEC mode Cisco IOS command.

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• When an IPv6 enabled host boots, it sends a router solicitation (RS) message. An IPv6 router responds with a router advertisement (RA). Which two items are c ontained in the RA?（）

  A . any route advertisements it has received B . prefixes for the link C . keepalive timers D . IPv6 address for the host E . request for the local host IP address F . lifetime of the prefix

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• When you execute the "ip helper-address" command on a router， which three UDP ports getenabled automatically by default？（）

  A . 53（DNS） B . 69（TFTP） C . 515（LPR） D . 161（SNMP） E . 49（TACACS）

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• Refer to the exhibit. When running OSPF, What would cause router A not to form an adjacency with router B?（）https://assets.asklib.com/images/image2/2018072410262779147.jpg

  A . The loopback addresses are on different subnets B . The value of the dead timers on the router are different C . Route summarization is enabled on both routers D . The process indentifier on router A is different than the process identifier on router B

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• When would you want to disable souce-route and icmp on a router of interface？

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• When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined（）。

  A . It is supplied by the CSU/DSU. B . It is supplied by the far end router. C . It is determined by the clock rate command. D . It is supplied by the Layer 1 bit stream timing.

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• After logging into a router, you type in "enable" and then enter the correct password when prompted. What is the current router prompt symbol at this point?（）

  A . > B . # C . ? D . * E . All of the above F . None of the above

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• You need to configure a GRE tunnel on a IPSec router. When you are using the SDM to configurea GRE tunnel over IPsec， which two parameters are required when defining the tunnel interfaceinformation？（）

  A . The crypto ACL number B . The IPSEC mode （tunnel or transport） C . The GRE tunnel interface IP address D . The GRE tunnel source interface or IP address， and tunnel destination IP address E . The MTU size of the GRE tunnel interface

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• When configuring a serial interface on a router, what is the default encapsulation?（）

  A . atm-dxi B . frame-relay C . hdlc D . lapb E .

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• Which of the following HSRP router states does an active router enter when it is preempted by a  higher priority router？（）

  A .  active B .  speak C .  learn D .  listen E .  init F .  standby

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• When a router converts analog signals to digital signals， what three steps are always included in the process？（）

  A . involution B . encoding C . sampling D . quantization E . compression F . companding

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• After making some network changes you power off and then power on your Cisco router. What sequence of events occurs when a router is powered up?（）

  A . Perform POST, locate configuration statements, apply configuration statements, locate Cisco IOS software, and load Cisco IOS software. B . Locate Cisco IOS software, load Cisco IOS software, locate configuration statements, apply configuration statements, and perform POST. C . Test software routines, POST, load configuration files, load Cisco IOS software, test Cisco IOS software. D . POST, locate Cisco IOS software, load the Cisco IOS software, locate configuration statements, and apply configuration statements. E . Load and test IOS, load configuration files, test software routines, POST.

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• When a router undergoes the exchange protocol within OSPF, in what order does it pass through each state?（）

  A . exstart state>exchange state>loading state>full state B . exstart state>full state>loading state>exchange state C . Loading state>exchange state>full state>exstart state D . exstart state>loading state>exchange state>full state

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• When setting arguments for a job, which procedure do you use for types that cannot be implicitly converted to and from a VARCHAR2 datatype?（）

  A . SET_JOB_ARGUMENT_VALUE B . SET_JOB_VALUE_ANYDATA C . SET_JOB_ANYDATA_VALUE D . SET_SPECIAL_JOB_VALUE E . SET_JOB_ANYTYPE_VALUE

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• When a Cisco router is configured for SSH, it acts as an （）?

  A . SSH client B . SSH proxy C . SSH server D . SSH and SSL server

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• What are two steps that are taken when a router converts a voice signal from analog to digital form？（）

  A . sampling B . packetization C . quantization D . serializatio

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• hat two things will a router do when running a distance vector routing protocol？（）

  A . Send periodic updates regardless of topology changes. B . Send entire routing table to all routers in the routing domain. C . Use the shortest-path algorithm to the determine best path. D . Update the routing table based on updates from their neighbors. E . Maintain the topology of the entire network in its database.

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• Which three elements must be used when you configure a router interface for vlan trunking？（）

  A . one IP network or subnetwork for each subinterface B . subinterface numbering that matches vlan tages C . subinterface encapsulation identifiers that match vlan tags D . a management domain for each subinterface E . one physical interface for each subinterface F . one subinterface per vla

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• Which three elements must be used when you configure a router interface for vlan trunking?（）

  A . one IP network or subnetwork for each subinterface B . subinterface numbering that matches vlan tages C . subinterface encapsulation identifiers that match vlan tags D . a management domain for each subinterface E . one physical interface for each subinterface F . one subinterface per vla

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• What two things will a router do when running a distance vector routing protocol?（）

  A . Send periodic updates regardless of topology changes. B . Send entire routing table to all routers in the routing domain. C . Use the shortest-path algorithm to the determine best path. D . Update the routing table based on updates from their neighbors. E . Maintain the topology of the entire network in its database.

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• When a router is connected to a Frame Relay WAN link using a serial DTE interface, how is the interface clock rate determined?（）

  A . It is supplied by the CSU/DSU. B . It is supplied by the far end router. C . It is determined by the clock rate command. D . It is supplied by the Layer 1 bit stream timing.

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• When setting arguments for a job， which procedure do you use for types that cannot be implicitly converted to and from a VARCHAR2 datatype？（）  

  A .  SET_JOB_ARGUMENT_VALUE B .  SET_JOB_VALUE_ANYDATA C .  SET_JOB_ANYDATA_VALUE D .  SET_SPECIAL_JOB_VALUE E .  SET_JOB_ANYTYPE_VALUE

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• Refer to the exhibit. When running OSPF, What would cause router A not to form an adjacency with router B？（）

  <img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/67e52e69e1cc511a71a60a5d0c35c68a.jpg' /> A.The loopback addresses are on different subnets B.The value of the dead timers on the router are different C.Route summarization is enabled on both routers D.The process indentifier on router A is different than the process identifier on router B

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