A router has been configured with the settings shown below: [edit] user@host# show system authentication-order authentication-order [ radius tacplus ]; The router also has a local database that contains the user lab with password lab123. What would happen if both the RADIUS and the TACACS servers are not accessible?（） A router has been configured with the settings shown below: [edit] user@host# show system authentication-order authentication-order [ radius tacplus ]; The router also has a local database that contains the user lab with password lab123. What would happen if both the RADIUS and the TACACS servers are not accessible?（）..

第1题

[] A Cisco router has been configured, and the copy running-config startup-config command has been issued. When the router is power cycled, the router prompts with: "Would you like to enter the initial configuration dialog? [yes/no]" Why has this occurred?（） A Cisco router has been configured, and the copy running-config startup-config command has been issued. When the router is power cycled, the router prompts with: "Would you like to enter the initial configuration dialog? [yes/no]" Why has this occurred?（）

A、A. There is an error in the router DRAM. B、B. Te IOS image is corrupt. C、C. The configuration register is set to 0x2142. D、D. The TFTP server that contains the router configuration file is unreachable. E、E. A boot system configuration command has placed the router into setup mode.

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第2题

[单选题] Refer to the exhibit. Analyze the two traceroutes that are displayed. Which of these statements is correct in describing what most likely caused the traceroute differences?（）

A、Do not fragment has been configured on PE11. B、MPLS has been disabled on routers P11 and P12. C、An access list has been created on P11 to block traceroutes from PE11. D、The no mpls ip propgate-ttl local command has been configured on PE11 E、ICMP has been disabled on the intermediary routers between PE11 and PE12.

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第3题

[单选题] Router R1 exists in an Enterprise that uses EIGRP as its routing protocol. The show ip route command output on router R1 lists the following phrase: "Gateway of last resort is 1.1.1.1 to network 2.0.0.0". Whic h of the following is most likely to have caused this output to occur on R1?（）

A、R1 has been configured with an ip default- network 2.0.0.0 command. B、R1 has been configured with an ip route 0.0.0.0 0.0.0.0 1.1.1.1 command. C、R1 has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command. D、Another router has been configured with an ip default - network 2.0.0.0 command. E、Another router has been configured with an ip route 2.0.0.0 255.0.0.0 1.1.1.1 command.

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第4题

[单选题] Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However, R1 does not show R2 as a neighbor and does not accept routing updates from R2. What could be the cause of the problem?（）

A、The no auto - summary command has not been issued under the EIGRP process on both routers. B、Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24. C、EIGRP cannot exchange routing updates with a neighbor's router interface that is configured with tw o IP addresses. D、EIGRP cannot form neighbor relationship and exchange routing updates with a secondary address.

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第5题

[单选题] During OSPF adjacency formation, in which state is a router in when an OSPF hello packet has been sent but bi-directional communication has not been achieved?（）

A、A B、B C、C D、D

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第6题

[单选题] What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?（）

A、Route reflectors are not passing updates properly. B、BGP synchronization has been enabled. C、The next-hop address is unreachable. D、No loopback interface has been configured on a router.

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第7题

[单选题] 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.

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第8题

[单选题] The technician has suspicions that a browser has been hijacked. Which of the following should the technician look for in this situation?（）

A、A new default gateway has been setup. B、A new Internet shortcut has been added. C、A new web browser has been installed and is now the default. D、A proxy server has been enabled.

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第9题

[单选题] Port of Registry refers to the port where（）.

A、the ship has been named B、the ship has been built C、the ship has been signed D、the ship has been registered

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第10题

[单选题] How can an administrator determine if a router has been configured when it is first powered up?（）

A、A configured router prompts for a password B、A configured router goes to the privileged mode prompt C、An un configured router goes into the setup dialog D、An un configured router goes to the enable mode prompt

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