When a router converts analog signals to digital signals， what three steps are always included in the process？（）A、involutionB、encodingC、samplingD、quantizationE、compressionF、companding
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
相关考题：
What is the term "ordered control" mean regarding how MPLS LSPs are established?() A. establish starting at the egress router going back to the ingress routerB. establish starting at the ingress router going downstream to the egress routerC. establish when a router learns of a new prefixD. establish when the path correctly matches the reverse path forwarding check
When does the E－series router start monitoring DHCP traffic using the DHCP External function?() A. When the discovery packet enters the router from the DHCP client.B. Only when the offer packet enters the router from the DHCP server.C. When the acknowledge packet enters the router from the DHCP server.D. Only when the discovery packet leaves the router going to the DHCP server.
How can a Ezonexam administrator determine if a router has been configured when it is first powered up?A．A configured router prompts for a passwordB．A configured router goes to the privileged mode promptC．An un configured router goes into the setup dialogD．An un configured router goes to the enable mode prompt
Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network.Which of the following answers best describes the router‘s logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）A. When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interfaceB. When routing the packet, matching a route whose outgoing interface is the GRE tunnel interfaceC. When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interfaceD. When permitted by an ACL that was referenced in the associated crypto map
Router R1, a branch router, connects to the Internet using DSL. Some traffic flows through a GRE and IPsec tunnel, over the DSL connection, destined for an Enterprise network. Which of the following answers best describes the router's logic that tells the router, for a given packet, to apply GRE encapsulation to the packet?（）A、When the packet received on the LAN interface is permitted by the ACL listed on the tunnel greacl command under the incoming interfaceB、When routing the packet, matching a route whose outgoing interface is the GRE tunnel interfaceC、When routing the packet, matching a route whose outgoing interface is the IPsec tunnel interfaceD、When permitted by an ACL that was referenced in the associated crypto map
Which of the following statements about authentication responses and conditions is true? （）(Choosetwo.)A、When a router receives a failure response, it stops querying authentication methods.B、When a router receives an error response, it stops querying authentication methods.C、If the router receives a failure response from an authentication method, it queries the next method.D、The router does not differentiate between failure and error responses; the authentication process is always interrupted.E、If it receives no response from the authentication method, a router will determine the error condition On its own; the router also has the option to proceed to the next method in a list if configured accordingly.
What protocol specified by RFC 1256 will allow an enabled IP host a new router when a router becomes unavailable？ （）A、 IRDPB、 SNMPC、 HSRPD、 VRRP
When should you enable Network Address Translation Transparency (NAT-T) on the Teleworker?（）A、when a router between the Teleworker router and the head-end VPN router is doing NAT/pNAT and does not support IPSec pass-through B、when the Teleworker router itself is doing NAT/pNATC、alwaysD、never
Which of the following HSRP router states does an active router enter when it is preempted by a higher priority router？（）A、 activeB、 speakC、 learnD、 listenE、 initF、 standby
When is an IPSec SA built on the Teleworker Router?（）A、when the router is booted upB、when the router administratively does a no shutdown" on the IPSec SA C、when traffic matches a line of the access-list tied into the crypto-map in the router configuration, and that particular IPSec SA is not already up D、when the ISAKMP SA completes negotiation of all IPSec SAs (one per access-list line in the crypto ACL), it will be brought up immediately
When configuring Multicast VPN （MVPN） over an MPLS core， both the Default and Data MDT isconfigured under which configuration mode？（）A、router（config）#B、router（config-if）#C、router（config-vrf）#D、router（config-router）#E、router（config-router-af）#
How can an administrator determine if a router has been configured when it is first powered up?（）A、A configured router prompts for a passwordB、A configured router goes to the privileged mode promptC、An un configured router goes into the setup dialogD、An un configured router goes to the enable mode prompt
A network planning diagram shows a large internetwork with many routers. The configurations show that OSPF has been enabled on all interfaces, I P addresses correctly configured, and OSPF workinG. For which of the following cases would you expect a router to create and flood a Type 2 LSA?（）A、When OSPF is enabled on a LAN interface, and the router is the only router connected to the subnet.B、 When OSPF is enabled on a point - to -point serial link, and that router has both the higher router ID and higher interface IP address on the link.C、When OSPF is enabled on a Frame Relay point - to - point subinterface, has the lower RID and lower subinterfa ce IP address, and otherwise uses default OSPF configuration on the interface.D、When OSPF is enabled on a working LAN interface on a router, and the router has been elected BDR.E、None of the other answers is correct.
Which of the following OSPF commands, when used together, will put the network 192.168.10.0/24 into OSPF area 0?（）A、Router(config-router)# network 192.168.10.0 0.0.0.255 0B、Router(config-router)# network 192.168.10.0 0.0.0.255 area 0C、Router(config-router)# network 192.168.10.0 255.255.255.0 area 0D、Router(config)# router ospf 0E、Router(config)# router ospf 1
Why is NTP an important component when implementing IPSec VPN in a PKI environment？（）A、 To ensure the router has the correct time when generating its private/public key pairs.B、 To ensure the router has the correct time when checking certificate validity from the remote peersC、 To ensure the router time is sync with the remote peers for encryption keys generationD、 To ensure the router time is sync with the remote peers during theDH exchangeE、 To ensure the router time is sync with the remote peers when generating the cookies during IKE phase 1
Which of the following statements about authentication responses and conditions is true?（）(Choose two.)A、When a router receives a failure response, it stops querying authentication methods.B、When a router receives an error response, it stops querying authentication methods.C、If the router receives a failure response from an authentication method, it queries the next method.D、The router does not differentiate between failure and error responses; the authentication process is always interrupted.E、If it receives no response from the authentication method, a router will determine the error condition on its own; the router also has the option to proceed to the next method in a list if configured accordingly.
Mike, a technician, is installing a wireless router for a client. Which of the following is MOST important when installing a wireless router?（）A、LocationB、DCPAC、SSIDD、Number of client machines
When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）A、When the discovery packet enters the router from the DHCP client.B、Only when the offer packet enters the router from the DHCP server.C、When the acknowledge packet enters the router from the DHCP server.D、Only when the discovery packet leaves the router going to the DHCP server.
单选题Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）A Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， Router B will maintain the role of master virtual routeB Router A is the master virtual router， and Router B is the backup virtual router. When Router A fails， Router B will become the master virtual router. When Router A recovers， it will regain the master virtual router roleC Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， Router A will maintain the role of master virtual router.D Router B is the master virtual router， and Router A is the backup virtual router. When Router B fails， Router A will become the master virtual router. When Router B recovers， it will regain the master virtual router role
单选题Which of the following HSRP router states does an active router enter when it is preempted by a higher priority router？（）A activeB speakC learnD listenE initF standby
单选题What is the term "ordered control" mean regarding how MPLS LSPs are established?（）Aestablish starting at the egress router going back to the ingress routerBestablish starting at the ingress router going downstream to the egress routerCestablish when a router learns of a new prefixDestablish when the path correctly matches the reverse path forwarding check
单选题How can an administrator determine if a router has been configured when it is first powered up?（）AA configured router prompts for a passwordBA configured router goes to the privileged mode promptCAn un configured router goes into the setup dialogDAn un configured router goes to the enable mode prompt
单选题Given the following LSP configuration, which statement is true? （）A The router will use path1 when it is available and stable.B The router will use path3 when it is available and stable.C The router will attempt to establish path2 only when path1 and path3 are down.D The router will attempt to establish path1 only when path2 and path3 are down.
单选题Why is NTP an important component when implementing IPSec VPN in a PKI environment？（）A To ensure the router has the correct time when generating its private/public key pairs.B To ensure the router has the correct time when checking certificate validity from the remote peersC To ensure the router time is sync with the remote peers for encryption keys generationD To ensure the router time is sync with the remote peers during theDH exchangeE To ensure the router time is sync with the remote peers when generating the cookies during IKE phase 1
单选题When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?（）AprofileBdomain mapCDHCP serverDRADIUS server
单选题When does the E-series router start monitoring DHCP traffic using the DHCP External function?（）AWhen the discovery packet enters the router from the DHCP client.BOnly when the offer packet enters the router from the DHCP server.CWhen the acknowledge packet enters the router from the DHCP server.DOnly when the discovery packet leaves the router going to the DHCP server.
单选题In what situation would the command ip helper-address be required？（Choose the best answer.）（）AOnly when there is a duplicate IP address caused by a combination of static and dynamic IPaddress allocationsBOn each router that exists between the client and the serverCOnly when a router separates the client from the serverDOnly if the DHCP sever issues a DHCPNAK to the initial requestEOnly when the client is on the same subnet as the serverFOnly when the DHCP pool is out of IP addresses