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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Which router IOS commands can be used to troubleshoot LAN connectivity problems?（）
A . ping
B . tracert
C . ipconfig
D . show ip route
E . winipcfg
F . show interface
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This graphic shows the results of an attempt to open a Telnet connection to router ACCESS1 from router Remote27. Which of the following command sequences will correct this problem? （）https://assets.asklib.com/images/image2/201807260848161736.png
A . ACCESS1(config)# line console 0 ACCESS1(config-line)# password cisco
B . Remote27(config)# line console 0 Remote27(config-line)# login Remote27(config-line)# password cisco
C . ACCESS1(config)# line vty 0 4 ACCESS1(config-line)# login ACCESS1(config-line)# password cisco
D . Remote27(config)# line vty 0 4 Remote27(config-line)# login Remote27(config-line)# password cisco
E . ACCESS1(config)# enable password cisco
F . Remote27(config)# enable password cisco
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Which router IOS commands can be used to troubleshoot LAN connectivity problems？（）
A . ping
B . tracert
C . ipconfig
D . show ip route
E . winipcfg
F . show interface
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Router R1 has two LAN interfaces and three serial interfaces enabled for IPv6. All the inte rfaces use link local addresses automatically generated by the router. Which of the following could be the link local address of R1's interface S0/0?（）
A . FEA0::200:FF:FE11:0
B . FE80::200:FF:FE11:1111
C . FE80::0213:19FF:FE7B:0:1
D . FEB0::211:11FF:FE11: 1111
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What is the purpose of configuring router R1 with the "IP Helper address" command？（）
A . IP Helper is used to direct BOOTP clients to a BOOTP server
B . IP Helper is used to prevent the router form forwarding IP broadcasts
C . IP Helper is used to allow IPX clients to communicate with IP-based servers
D . IP Helper is used to accommodate compatibility routers using different IP routing protocols
E . None of the other alternatives apply
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Which command can be used on a PE router to connect to a CE router （11.1.1.4） in VRF red？（）
A . telnet 11.1.1.4 /vrf-source red
B . telnet 11.1.1.4 source /vrf red
C . telnet 11.1.1.4 /source vrf red
D . telnet 11.1.1.4 /vrf red
E . telnet 11.1.1.4 vrf red
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Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface. What command would make this router not use a DR, and dynamically discover OSPF neighbors?（）
A . ip ospf network broadcast
B . ip ospf network non - broadcast
C . ip ospf network point - to - multipoint
D . ip ospf network point - to - multipoint non - broadcast
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Which of the following IOS commands could you use to troubleshoot a router connectivity problem on an IP network?（）
A . show ip route
B . ipconfig
C . tracert
D . show interfaces
E . traceroute
F . ping
G . All of the above
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R1 in ASN 1 with loopback1 address 1.1.1.1 needs to be configured with an iBGP connection to R2 with loopback2 IP address 2.2.2.2. The connection should use the loopbacks. Which o f the following commands is required on R1?（）
A . neighbor 1.1.1.1 remote- as 1
B . neighbor 2.2.2.2 remote- as 2
C . neighbor 2.2.2.2 update - source loopback1
D . neighbor 2.2.2.2 ibgp -multihop 2
E . neighbor 2.2.2.2 ibgp - mode
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Router R1 connects to a Frame Relay cloud using a multipoint subinterface, with ten PVCs associated with the subinterface. What command would make this router not use a DR and require static OSPF neighbor definition?（）
A . ip ospf network broadcast
B . ip ospf netw ork non - broadcast
C . ip ospf network point - to - multipoint
D . ip ospf network point - to - multipoint non - broadcast
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Router R1 has been conf igured with an ipv6 route 2000::/64 S0/0/0 64 command.Which of the following does the 64 at the end of the command represent?（）
A . Metric
B . Administrative distance
C . Timeout (seconds)
D . Prefix length
E . Interface ID
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Router R1 is configured for HSRP. Which of the following are valid HSRP states on R1？ （）
A . Init
B . Idle
C . Active
D . Standby
E . Established
F . Backu
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Which of the following Frame-Relay encapsulation commands would you use, if you had to connect your Cisco router to a non-Cisco router?（）
A . TestKRouter(config-if)# Encapsulation frame-relay dot1q
B . TestKRouter(config-if)# Encapsulation frame-relay aal5snap
C . TestKRouter(config-if)# Encapsulation frame-relay ietf
D . TestKRouter(config-if)# Encapsulation frame-relay isl
E . None of the above
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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? （）https://assets.asklib.com/images/image2/2018073010540810068.jpg
A . Router R1 will deny the 172.16.1.0/26 route while permitting the 172.16.1.64/27 route to be advertised.
B . Router R1 will advertise both rou tes.
C . Router R1 should be reconfigured with an ACL instead of an ip prefix - list command.
D . Router R1 will deny the 172.16.1.0/27 route while permitting the 172.16.1.0/26 route to be advertised.
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Refer to the exhibit. What statement is true based upon the configuration of router R1 and router R2？（）https://assets.asklib.com/images/image2/2018073015422145313.jpg
A . Router R2 will become the master for Virtual Router 1， and router R1 will become the backup for Virtual Router 2.
B . Router R1 will become the master for Virtual Router 1， and router R2 will become the backup for Virtual Router 2.
C . Router R1 will become the active virtual gateway.
D . Router R2 will become the active virtual gateway.
E . The hello and hold timers are incompatible with OSPF type 5 LSAs.
F . The hello and hold timers are incompatible with multi-homed BGP.
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A router with a serial interface will be used for an ISDN link.What other function group devices are required to complete the connection to the service provider? （）
A . TE1
B . TE2
C . TA
D . NT1
E . NT2
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Area Border Router （ABR） is a router located on the border of one or more OSPF areas that connect those areas to the backbone network. An ABR will inject a default route into which two types of areas？（）
A . Area 0
B . NSSA
C . Totally stubby
D . Stu
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Router R1 currently has no configuration related to IPv6 or IPv4. The following configuration exists in a planning document, intended to be used to copy/paste into Router R1 to enable OSPFv3 on interfaces F0/0 and S0/0/0. No other related configuration exists. Assuming F0/0 and S0/0/0 reach an up/up state, which of the following is true about OSPFv3 on R1 after this configuration has been pasted into R1？（）ipv6 router ospf 1ipv6 unicast- routinginterface f0/0ipv6 address 2000 ::1/64ipv6 ospf 1 area 1interface s0/0/0ipv6 address 2001::/64 eui - 64ipv6 ospf 1 area 0
A. OSPF works on F0/0 and S0/0/0 without further configuration
B. OSPF works with the addition of one command: a no shutdown command in OSPF router configur ation modE
C. OSPF works with the addition of one command: an router - id command in OSPF router configuration modE
D. OSPFv3 needs at least two more configuration commands before it works on R1
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R1 is currently advertising prefixes 1.0.0.0/8, 2.0.0.0/8, and 3.0.0.0/8 over its eBGP connection to neighbor 2.2.2.2 (R2). An engineer configures a prefix list (fred) on R1 that permits only 2.0.0.0/8 and then enables the filter with the neighbor R2 prefix- list fred out command. Upon exiting configuration mode, the engineer uses some show commands on R1, but no other commands.Which of the following is true in this case？（）
A. The show ip bgp neighbor 2 .2.2.2 received -routes command lists the three original prefixes.
B. The show ip bgp neighbor 2.2.2.2 advertised - routes command lists the three original prefixes.
C. The show ip bgp neighbor 2.2.2.2 routes command lists the three original prefixes.
D. T he show ip bgp neighbor 2.2.2.2 routes command lists only 2.0.0.0/8.
E. The show ip bgp neighbor 2.2.2.2 advertised - routes command lists only 2.0.0.0/8.
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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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根据网络拓扑和需求说明，完成（或解释)路由器R1的配置。 Router（config) ipv6 unicast-routing（3)
根据网络拓扑和需求说明，完成(或解释)路由器R1的配置。
Router(config) ipv6 unicast-routing (3)
Rl(config) interface Serial 1/0
R1(config-io (4) address (5) (6) (设置串口地址)
R1(config-if)no shutdown (开启串口)
R1(config)interface FastEthemet0/0
R1(config-if) (7) address (8) (设置以太口地址)
R1(config-if)exit
（3）
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Router R1, a branch router, connects to the Internet using DSL. The engineer plans to use a configuration with a dialer interface. The answers list a feature and interface on which the feature could be configured.Which combinations accurately describe the interface under which a feature will be configured？（）
A. PPP on the ATM interface
B. VPI/VCI on the dialer interface
C. IP address on the ATM interface
D. CHAP on the dialer interface
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While troubleshooting connectivity issues, you log into a remote router. From there,you wish to see the layer 1 and layer 2 status of the interface.Which of the following IOS commands would you issue to check the current IP addressing, as well as theyer 1 and layer 2 status of an interface？（）
A. TK1 show version
B. TK1 show protocols
C. TK1 show interfaces
D. TK1 show controllers
E. TK1 show ip interface
F. TK1 show startup-config
