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单选题
Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command. Which of the following is true about the effects of this configuration command?（）
A
R1 will always create and flood a default route into the OSPF domain.
B
R1 will create and flood an LSA for prefix/length 0.0. 0.0/0 into the OSPF domain if R1's IP routing table has a route to 0.0.0.0/0.
C
R1 will set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, regardless of whether R1 has a default route.
D
R1 w ill set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, but only if R1 has a route to 0.0.0.0/0.
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更多 “单选题Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command. Which of the following is true about the effects of this configuration command?（）A R1 will always create and flood a default route into the OSPF domain.B R1 will create and flood an LSA for prefix/length 0.0. 0.0/0 into the OSPF domain if R1's IP routing table has a route to 0.0.0.0/0.C R1 will set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, regardless of whether R1 has a default route.D R1 w ill set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, but only if R1 has a route to 0.0.0.0/0.” 相关考题
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What type of OSPF router is responsible for redistributing routes into OSPF?()
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Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE.Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）A. PrivacyB. AuthenticationC. Allows using an IGP between R1 and the EnterpriseD. Secure communications
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考题
Based on the show ip route isis output on R1, which statement is true? ()
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考题
Refer to the exhibit. Router C was configured so that it could form an adja cency with three OSPF neighbors, one connected to each of its three physical interfaces. Which statement is correct about router C?（）A. It is configured and functioning correctly as an OSPF internal router.B. It is configured and functioning correc tly as an ABR attached to stub area 4.C. It is configured and functioning correctly as an ASBR attached to external area 4.D. It is configured and functioning correctly as an ABR attached to totally stubby area 4.E. It is not configured correctly to function as specified.
考题
Refer to the exhibit. Router R1 is connected to networks 172.1 6.1.0 ／26 and 172.16.1.64 ／27. On the basis of the partial output in the exhibit, which statement is true? ()
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考题
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考题
You administer a network that uses two routers， R1 and R2， configured as an HSRP group to provide redundancy for the gateway. Router R1 is the active router and has been configured as follows： R1#configure terminal R1（config）#interface fa0/0 R1（config-if）#ip address 10.10.0.5 255.255.255.0 R1（config-if）#standby 1 priority 150 R1（config-if）#standby preempt delay minimum 50 R1（config-if）#standby 1 track interface fa0/2 15 R1（config-if）#standby 1 ip 10.10.0.20 Which of the following describes the effect the standby preempt delay minimum 50 command will have on router R1？（）A、 The HSRP priority for router R1 will increase to 200.B、 Router R1 will become the standby router if the priority drops below 50.C、 The HSRP priority for router R1 will decrease to 50 points when Fa0/2 goes down. D、 Router R1 will wait 50 seconds before attempting to preempt the active router.
考题
Examine the following excerpt from the show ip ospf database asbr -summary command on router R1 (RID 1.1.1.1). Which answer can be verified as definitely true based on this output?（） LS Type: Summary Links (AS Boundary Router) Link State ID: 9.9.9.9 (AS Boundary Router address) Advertising Router: 3.3.3.3 LS Seq Number: 8000000D Checksum: 0xE43A Length: 28 Network Mask: /0 TOS: 0 Metric: 100A、The output describes the contents of a Type 5 LSAB、3.3.3.3 identifies a ro uter as being the router performing redistributionC、R1's metric for its best route to reach the router with RID 9.9.9.9 is 100D、The router with RID 3.3.3.3's metric for its best route to reach the router with RID 9.9.9.9 is 100
考题
Which four statements about the Carrier Supporting Carrier （CSC） feature are true？ （）A、MPLS is required between the PE and CE routers that connect the backbone carrier to the customer carrier.B、The backbone carrier must enable the PE router to check that the packets it receives from the CErouter contain only the labels that the PE router advertised to the CE router.C、Every packet that crosses the backbone carrier must be encapsulated so that the packet includes MPLS labelsD、AII PE routers that link the backbone carrier to the customer carrier must run Route Target Rewrite.E、Arouting protocol is required between the PE and CE routers that connect the backbone carrierto thecustomer carrier. The routing protocol enables the customer carrier to exchange IGP routing information with the backbone carrier.
考题
Router R1 sits at an Enterprise branch office, using both the Internet and a leased line to another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise. Which of the following is most likely to be useful on the branch router?（）A、IPsec tunnelB、GRE tunnelC、Floating stati c routeD、An IGP
考题
Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command. Which of the following is true about the effects of this configuration command?（）A、R1 will always create and flood a default route into the OSPF domain.B、R1 will create and flood an LSA for prefix/length 0.0. 0.0/0 into the OSPF domain if R1's IP routing table has a route to 0.0.0.0/0.C、R1 will set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, regardless of whether R1 has a default route.D、R1 w ill set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, but only if R1 has a route to 0.0.0.0/0.
考题
如果在ASBR上，引入到OSPF的外部路由的下一跳不在此OSPF路由域内，则相关AS-External-LSA的Forwarding Address应当被设置为（）。A、0.0.0.0B、此ASBR的Router IDC、此ASBR所在区域的ABR的Router IDD、ASBR上此外部路由实际的下一跳
考题
What will happen if a private IP address is assigned to a public interface connected to an ISP?（）A、Addresses in a private range will be not routed on the Internet backbone.B、Only the ISP router will have the capability to access the public network.C、The NAT process will be used to translate this address in a valid IP address.D、Several automated methods will be necessary on the private network.E、A conflict of IP addresses happens, because other public routers can use the same range.
考题
What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2?（）A、On router R2， configure a default static route to the 192.168.1.0 network.B、On router R2， configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address.C、On router R1， configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10.D、On router R1， configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2.
考题
Which of the following is true about an OSPF area border router (ABR)?（）A、The ABR must have multiple interfaces connected to the backbone areAB、An ABR is a router with two interfaces, each connected to a different nonbackbone areAC、The only requirement to be considered an ABR is at least one interface connected to the backbone areAD、An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
考题
What type of OSPF router is responsible for redistributing routes into OSPF?（）A、ABRB、ASBRC、internal routerD、backbone router
考题
What type of router cannot exist within a stub area？（）A、 ABRB、 ASBRC、 internal routerD、 non-backbone router
考题
单选题Router R1 sits at an Enterprise branch office, using the Internet for its only connectivity back to the rest of the EnterprisE. Which of the following is not a ben efit of using an IPsec tunnel for packets sent through the Internet, between R1 and the rest of the Enterprise?（）A
PrivacyB
AuthenticationC
Allows using an IGP between R1 and the EnterpriseD
Secure communications
考题
单选题What will happen if a private IP address is assigned to a public interface connected to an ISP?（）A
Addresses in a private range will be not routed on the Internet backbone.B
Only the ISP router will have the capability to access the public network.C
The NAT process will be used to translate this address in a valid IP address.D
Several automated methods will be necessary on the private network.E
A conflict of IP addresses happens, because other public routers can use the same range.
考题
单选题Router R1, an ASBR connected to the Internet and to backbone area 0, has been configured with a default - information originate command. Which of the following is true about the effects of this configuration command?（）A
R1 will always create and flood a default route into the OSPF domain.B
R1 will create and flood an LSA for prefix/length 0.0. 0.0/0 into the OSPF domain if R1's IP routing table has a route to 0.0.0.0/0.C
R1 will set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, regardless of whether R1 has a default route.D
R1 w ill set a flag on the LSA for the subnet between itself and one of the ISPs, noting this subnet as a default network, but only if R1 has a route to 0.0.0.0/0.
考题
单选题What type of router cannot exist within a stub area？（）A
ABRB
ASBRC
internal routerD
non-backbone router
考题
单选题Typical ADSL broadband Internet access requires a username and password to be entered on end-userPC connected to the ADSL modem in order for the end user to gain access to the Internet.if a Cisco ADSLrouter is used instead of an ADSL modem，what functionality is required on the Cisco ADSL router so theend-user connected to the Cisco ADSL router can access the Internet without entering a username andpassword？（）A
PPPoAB
Route Bridge Encapsulation（RBE）C
PPPoE clientD
Integrated Routing and Bridging（IRB）E
AAA
考题
单选题What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2?（）A
On router R2， configure a default static route to the 192.168.1.0 network.B
On router R2， configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address.C
On router R1， configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10.D
On router R1， configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2.
考题
单选题Which of the following is true about an OSPF area border router (ABR)?（）A
The ABR must have multiple interfaces connected to the backbone areAB
An ABR is a router with two interfaces, each connected to a different nonbackbone areAC
The only requirement to be considered an ABR is at least one interface connected to the backbone areAD
An ABR must have at least one interface in the backbone area plus at least one other interface in a nonbackbone areA
考题
多选题Router R1 sits at an Enterprise branch office, using both the Internet and a leased line to another Enterprise router for its two connectivity options back into the rest of the Enterprise network. The engineer planning for this branch decided to use the leased line for all Enterprise traffic, unless it fails, in which case the Internet connection should be used to pass traffic to the Enterprise. Which of the following is most likely to be useful on the branch router?（）AIPsec tunnelBGRE tunnelCFloating stati c routeDAn IGP
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