R1 has 5 working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, a nd 3 million, respectively. An engineer then adds the ip summary - address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?（）A、R1 loses and then reestablishes neighborships with all neighbors.B、R1 no longer advert ises 10.1.1.0/24 to neighbors connected to Fa0/0.C、1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).D、R1 advertises a 10.1.0.0/16 route out Fa0/0,with metric of around 2 million (med ian metric of component subnets).
R1 has 5 working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, a nd 3 million, respectively. An engineer then adds the ip summary - address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?（）
- A、R1 loses and then reestablishes neighborships with all neighbors.
- B、R1 no longer advert ises 10.1.1.0/24 to neighbors connected to Fa0/0.
- C、1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).
- D、R1 advertises a 10.1.0.0/16 route out Fa0/0,with metric of around 2 million (med ian metric of component subnets).
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________ head of the Research & Development Department, he has been ________ developing new products. A.Working as...working onB.Working for...working onC.Working as...working atD.Working on...working at
Studytheexhibitshownbelowcarefully.InthisscenariotheserviceproviderwantstoensurethatswitchS1istherootswitchforitsownnetworkandthenetworkof.Onwhichinterfacesshouldrootguardbeconfiguredtoensurethatthishappens？（）A.Interfaces11and12B.Interfaces1，2，3，and4C.Interfaces5and6D.Interfaces5，6，7，and8E.Interfaces1and2F.Interfaces1，3，5，and6
Refer to the e xhibit. It is desired to set up a BGP neighbor relationship between routers R1 and R4. BGP packets between them could travel through R2 or R3. What is the simplest configuration that will allow for failover?（）A. Configure BGP n eighbor relationships between all interfaces on R1 and R4.B. Install a direct connection between R1 and R4.C. Configure loopback interfaces on R1 and R4 to provide the update source address for BGP packets.D. Configure only one neighbor relationship between R1‘s 192.168.1.2 interface and R4‘s 172.16.10.2 interface.
Refer to the exhibit. Network 10.0.0.0／8 is being advertised to autonomous system 65550 via both external links. Which statement about the preferred path to the 10.0.0.0／8 network is true? () A. Router R2 will be preferred because it has the higher neighbor IP address.B. Router R2 will be preferr ed because its neighbor has a lower autonomous system number.C. Router R1 will be preferred because it has a lower local preference.D. Router R2 will be preferred because it has a higher local preference.E. Router R1 will be preferred because its nei ghbor has the higher autonomous system number.F. Router R1 will be preferred because it has the lower neighbor IP address.
If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network()。 A.R1 will forward the packet out all interfaces.B.R1 will drop this packet because this it is not a valid IP address.C.As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table.D.R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FFE.As R1 forwards the frame containing this packet, Sw-A will forward it to the device assigned the IP address of 192.168.1.255.
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.
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:FE11:0B、FE80::200:FF:FE11:1111C、FE80::0213:19FF:FE7B:0:1D、FEB0::211:11FF:FE11: 1111
Router R1 has been configured with the commands rout er eigrp 9 and network 172.16.2.0 0.0.0.255, with no other current EIGRP configuration. R1's (working) Fa0/0 interface has been configured with IP address 172.16.2.2/26. R1 has found three EIGRP neighbors reachable via interface Fa0/0, including the rou ter with IP address 172.16.2.20. When the engineer attempts to add the neighbor 172.16.2.20 fa0/0 command in EIGRP configuration mode. Which of the following occurs？（）A、Fa0/0 failsB、The command is rejecteDC、The existing three neighbors failD、The neighborship with 172.16.2.20 fails and then reestablishesE、None of the other answers is correct
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 RIPng and IPv6 on interfaces F0/0 and S0/0/0. No other related configuration exists. Which of the following is true about RIPng on R1 after this configuration has been pasted into R1?（） ipv6 unicast- routing interface f0/0 ipv6 rip one enable ipv6 address 2000::1/64 interface s0/0/0 ipv6 address 2001::/64 eui - 64 ipv6 rip one enableA、RIPng will be enabled on no interfaces.B、RIPng will be enabled on one interface.C、RIPng will be enabled on two interfaces.D、RIPng will advertise about prefixes connected to S0/0/0 and F0/0, but only send Updates on one interface.
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.
Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange？（）A、The show ip eigrp neighbors command on R1 lists the revised Hello timerB、The show ip eigrp interfaces command on R1 lists the revised Hello timerC、The R1 - R2 neighborship fails due to Hello timer mismatcHD、The show ip eigrp interfaces detail command on R1 lists the revised Hello timer
Router R1 has working interfaces S0/0, S0/1, and S0/2, with IP address/prefix combinations of 10.10.10.1/24, 10.10.11.2/24, and 10.10.12.3/22. R1's configuration includes the command s router eigrp 9 and network 10.0.0.0. The show ip eigrp interfaces command lists S0/0 and S0/1 in the command output, but not S0/2. Which answer gives the reason for the omission？（）A、R1 has EIGRP neighbors reachable via S0/0 and S0/1, but not via S0/2, so it is not included.B、S0/2 may currently be in a state other than up/up.C、The network 10.0.0.0 command requires the use of mask 255.0.0.0 due to EIGRP being classful by default.D、S0/2 may be configured as a passive inter face.
If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network（）。A、R1 will forward the packet out all interfaces.B、R1 will drop this packet because this it is not a valid IP address.C、As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table.D、R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FFE、As R1 forwards the frame containing this packet, Sw-A will forward it to the device assigned the IP address of 192.168.1.255.
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.
Which two are true about has-a and is-a relationships？（）A、 Inheritance represents an is-a relationship.B、 Inheritance represents a has-a relationship.C、 Interfaces must be used when creating a has-a relationship.D、 Instance variables can be used when creating a has-a relationship.
单选题R1 has 5 working interfaces, with EIGRP neighbors existing off each interface. R1 has routes for subnets 10.1.1.0/24, 10.1.2.0/24, and 10.1.3.0/24, with EIGRP integer metrics of roughly 1 million, 2 million, a nd 3 million, respectively. An engineer then adds the ip summary - address eigrp 1 10.1.0.0 255.255.0.0 command to interface Fa0/0. Which of the following is true?（）AR1 loses and then reestablishes neighborships with all neighbors.BR1 no longer advert ises 10.1.1.0/24 to neighbors connected to Fa0/0.C1 advertises a 10.1.0.0/16 route out Fa0/0, with metric of around 3 million (largest metric of component subnets).DR1 advertises a 10.1.0.0/16 route out Fa0/0,with metric of around 2 million (med ian metric of component subnets).
单选题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?（）AFEA0::200:FF:FE11:0BFE80::200:FF:FE11:1111CFE80::0213:19FF:FE7B:0:1DFEB0::211:11FF:FE11: 1111
单选题Hannah finished building her new all-purpose projects room last year, and she has been working in the room ever since.Aand she has been working in the room ever sinceBand since that time she has worked thereCwhere always since she worksDshe has been working in that room ever sinceEand since then is working there
单选题What is the functionality of redundant interfaces （reth） in a chassis cluster？（）Areth interfaces are used only for VRRP.Breth interfaces are the same as physical interfaces.Creth interfaces are pseudo-interfaces that are considered the parent interface for two physical interfaces.DEach cluster member has a reth interface that can be used to share session state information with the other cluster members.
单选题Enterprise Router R1, in ASN 1, connects to ISP Router I1, ASN 2, using eBGP. There are two parallel serial links between the two rou ters. The implementation plan calls for each router to base their BGP TCP connection on their respective loopback1 interfaces, with IP addresses 1.1.1.1 and 2.2.2.2, respectively. Which of the following commands would not be part of a working eBGP confi guration on Router R1?（）Arouter bgp 1Bneighbor 2.2.2.2 remote- as 2Cneighbor 2.2.2.2 update - source loopback1Dneighbor 2.2.2.2 multihop 2
单选题Router R1 has working interfaces S0/0, S0/1, and S0/2, with IP address/prefix combinations of 10.10.10.1/24, 10.10.11.2/24, and 10.10.12.3/22. R1's configuration includes the command s router eigrp 9 and network 10.0.0.0. The show ip eigrp interfaces command lists S0/0 and S0/1 in the command output, but not S0/2. Which answer gives the reason for the omission？（）AR1 has EIGRP neighbors reachable via S0/0 and S0/1, but not via S0/2, so it is not included.BS0/2 may currently be in a state other than up/up.CThe network 10.0.0.0 command requires the use of mask 255.0.0.0 due to EIGRP being classful by default.DS0/2 may be configured as a passive inter face.
单选题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 RIPng and IPv6 on interfaces F0/0 and S0/0/0. No other related configuration exists. Which of the following is true about RIPng on R1 after this configuration has been pasted into R1?（） ipv6 unicast- routing interface f0/0 ipv6 rip one enable ipv6 address 2000::1/64 interface s0/0/0 ipv6 address 2001::/64 eui - 64 ipv6 rip one enableARIPng will be enabled on no interfaces.BRIPng will be enabled on one interface.CRIPng will be enabled on two interfaces.DRIPng will advertise about prefixes connected to S0/0/0 and F0/0, but only send Updates on one interface.
多选题In a lab, R1 connects to R2, which connects to R3. R1 and R2 each have several working interfaces, all assigned addresses in class A network 10.0.0.0. Router R3 has some working interfaces in class A net work 10.0.0.0, and others in class B network 172.16.0.0. The engineer experiments with the auto -summary command on R2 and R3, enabling and disabling the command in various combinations. Which of the following combinations will result in R1 seeing a rout e for 172.16.0.0/16, instead of the individual subnets of class B network 172.16.0.0?（）Aauto - summary on R2 and no auto - summary on R3Bauto - summary on R2 and auto - summary on R3Cno auto -summary on R2 and no auto- summary on R3Dno auto - summary on R2 and auto - summary on R3
单选题Routers R1 and R2 are EIGRP neighbors using their Fa0/0 interfaces, respectively. An engineer adds the ip hello - interval eigrp 9 6 command to R1's Fa0/0 configuration. Which of the following is true regarding the results from this c hange？（）AThe show ip eigrp neighbors command on R1 lists the revised Hello timerBThe show ip eigrp interfaces command on R1 lists the revised Hello timerCThe R1 - R2 neighborship fails due to Hello timer mismatcHDThe show ip eigrp interfaces detail command on R1 lists the revised Hello timer