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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.
参考答案
更多 “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.” 相关考题
考题
When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?()
A. profileB. domain mapC. DHCP serverD. RADIUS server
考题
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.
考题
Which CLI command enables the DHCP External Server function on an E－series router?()
A. service dhcp-externalB. set dhcp external serverC. set dhcp-external serverD. dhcp external server
考题
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.
考题
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
考题
What does the OSPF command capability vrf-lite achieve？（）A、It enables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFB、It disables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFC、It enables the exchange of the "VRF-Lite" capability when the OSPF adjacency is formed.D、It disables the MPLS processing on the OSPF learned routes inside the VRF
考题
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
考题
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
考题
In which two ways does the BGP graceful capability preserve prefix information during a restart？（）A、The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.B、The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.C、The peer router sends an end-of-RIB message to the restarting router.D、The restarting router removes any stale prefixes after the timer for stale entries expires.E、The restarting router does not remove any stale prefixes after the timer for stale entries expires.
考题
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.
考题
Which mechanism does OSPFv3 use when the router LSA is too big to be sent out？（）A、It relies on IPv6 to do the fragmenting.B、It splits the LS Update packet into smaller packets.C、It splits the LSA into smaller router LSA packets.D、It produces an error.
考题
By default, what does a Juniper Networks router set the BGP origin code to when originating theroute?（）A、IGP (Value 0)B、EGP (Value 1)C、Incomplete (Value 2)D、It depends on the route's source.
考题
When configuring PPP over ATM interfaces, what does the profile utility accomplish?（）A、It binds an interface to a virtual router.B、It allows for dynamic interface creation.C、It assigns a Domain Name Server for a session.D、It identifies the RADIUS server to use for authentication
考题
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
考题
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
考题
单选题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
考题
多选题In which two ways does the BGP graceful capability preserve prefix information during a restart？（）AThe peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.BThe router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.CThe peer router sends an end-of-RIB message to the restarting router.DThe restarting router removes any stale prefixes after the timer for stale entries expires.EThe restarting router does not remove any stale prefixes after the timer for stale entries expires.
考题
多选题In which two ways does the BGP graceful restart capability preserve prefix information during a restart？（）AThe peer router sends an end-of RIB message to the restarting routerBThe peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing tableCThe restarting router does not remove any stale prefixes after the timer for stale entries expiresDThe router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates， the restarting router starts sending its own updatesEThe restarting router removes any stale prefixes after the timer for stale entries expires
考题
单选题When a router undergoes the exchange protocol within OSPF, in what order does it pass through each state?（）A
exstart stateexchange stateloading statefull stateB
exstart statefull stateloading stateexchange stateC
Loading stateexchange statefull stateexstart stateD
exstart stateloading stateexchange statefull state
考题
单选题Which CLI command enables the DHCP External Server function on an E-series router?（）A
service dhcp-externalB
set dhcp external serverC
set dhcp-external serverD
dhcp external server
考题
单选题Which statement about Frame Relay is not true？（）A
Static mapping is used when the remote router does not support Inverse ARP.B
Frame Relay Inverse ARP requires LMI capability to construct an address to the DLCI mapping tableon the router.C
Frame Relay Inverse ARP is disabled by default in Cisco IOS Software for all protocols that areenabled on the physical interface.D
Inverse ARP does not work when LMI is disabled.E
Frame Relay provides forward and backward congestion notification messages
考题
单选题When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?（）A
profileB
domain mapC
DHCP serverD
RADIUS server
考题
单选题What does the OSPF command capability vrf-lite achieve？（）A
It enables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFB
It disables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFC
It enables the exchange of the VRF-Lite capability when the OSPF adjacency is formed.D
It disables the MPLS processing on the OSPF learned routes inside the VRF
考题
单选题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.
考题
单选题By default, what does a Juniper Networks router set the BGP origin code to when originating theroute?（）A
IGP (Value 0)B
EGP (Value 1)C
Incomplete (Value 2)D
It depends on the route's source.
考题
单选题Which mechanism does OSPFv3 use when the router LSA is too big to be sent out？（）A
It relies on IPv6 to do the fragmenting.B
It splits the LS Update packet into smaller packets.C
It splits the LSA into smaller router LSA packets.D
It produces an error.
考题
单选题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
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