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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
参考答案
更多 “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 serverB、IP Helper is used to prevent the router form forwarding IP broadcastsC、IP Helper is used to allow IPX clients to communicate with IP-based serversD、IP Helper is used to accommodate compatibility routers using different IP routing protocolsE、None of the other alternatives apply” 相关考题
考题
An authentication request for a PPP over ATM client has been returned to the router with an address of 255.255.255.254.What does this indicate to the router?()
A. A static IP address is used.B. An unnumbered address is used.C. The returned RADIUS address is used.D. The IP address-pool configuration is used.
考题
Which three of the following protocols will be forwarded to a host specified by the ip helper - address interface configuration command if the configuration has not been modified by the ip forward - protocol udp global con figuration command?（）A. BOOTPB. TFTPC. ARPD. DNSE. proxy - ARPF. FTP
考题
Refer to the exhibit. Which statement is co rrect regarding the router configuration shown? ()
A. The router will rebroadcast any DHCP requests received by this interface out to all interfaces included in the ip helper - address commands.B. The router will rebroadcast any UDP broadcasts received by this interface out to all interfaces included in the ip helper - address commands.C. The router will unicast any DHCP requests received by this interface out to all addresses included in the ip helper - address commands.D. This configuration will not do anything because the ip helper - address command needs to also be applied to the 192.168.23.1 IP address.
考题
Refer to the exhibit. A network administrator has configured DHCP services on the router asshown. DHCP clients connected to the FastEthernet0/0 interface are working properly. DHCP clients connected to the FastEthernet0/1 interface are not receiving addresses.Which two statements contain recommendations that will solve the problem?（）A.The network shown in the output under the ip dhcp pool Central command should be changed to network 10.10.0.0 with a mask of 255.255.255.0B.A second DHCP pool for network 10 .10.0.0/24 should be configuredC.An ip dhcp excluded - address global configuration command for network 10.10.0.0/24 should be issuedD.The ip helper -address 10.0.0.1 command should be issued so that the address can be added to the Fast Ethernet0/0 c onfigurationE.The ip helper -address 10.0.0.1 command should be issued so that the address can be added to the Fast Ethernet0/1 configuration
考题
Refer to the exhibit. Which configuration would correctly enable Host A to acquire an IP address from the DHCP server that is located at 10.1.2.10／24? ()
A.ASw1(config)# interface range FastEthernet 0/1 - 24 ASw1(config - if - range)# ip forward - protocol udp 67 ASw1(config - if - range)# ip forward - protocol udp 68B.ASw1(config)# interface range FastEthernet 0/1 - 24 ASw1(config - if - range)# ip helper - address 10.1.2.10C.RTA(config)# interface fastethernet0/0 RTA(config -if)# ip forward- protocol udp 67 RTA(config - if)# ip forwar d- protocol udp 68D.RTA(config)# interface fastethernet0/1 RTA(config -if)# ip forward- protocol udp 67 RTA(config -if)# ip forward- protocol udp 68E.RTA(config)# interface fastethernet0/0 RTA(config - if)# ip helper - address 10.1.2.10F.RTA(config)# in terface fastethernet0/1 RTA(config - if)# ip helper - address 10.1.2.10
考题
Refer to the exhibit. Router R1 is being used as a relay device for autoconfiguration of switch S1.Which configuration will acc omplish this? ()
A.S1(config)# interface fastethernet 0/1S1(config - if)# ip helper - address 10.0.0.2B.S1(config)# interface fastethernet 0/1 S1(config - if)# ip helper - address 20.0.0.1C.R1(config)# interface fastethernet 0/0 R1(config - if)# ip help er - address 20.0.0.2R 1(config - if)# ip helper - address 20.0.0.3 R1(config - if)# ip helper - address 20.0.0.4 R1(config - if)# exit R1(config)# interface fastethernet 0/1 R1(config - if)# ip helper - address 10.0.0.1D.R1(config)# interface fastethernet 0/0 R1 (config - if)# ip helper - address 20.0.0.1 R2(config)# interface fastethernet 0/0 R2(config - if)# ip helper - address 20.0.0.1 R3(config)# interface fastethernet 0/0 R3(config - if)# ip helper - address 20.0.0.1 R4(config)# interface fastethernet 0/0 R4(config - if)# ip helper - address 20.0.0.1E.S1(config)# interface fastethernet 0/1 S1(config - if)# ip helper - address 10.0.0.2 R2(config)# interface fastethernet 0/0 R2(config - if)# ip helper - address 20.0.0.1 R3(config)# interface fastethernet 0/0 R3(config - if) # ip helper - address 20.0.0.1 R4(config)# interface fastethernet 0/0 R4(config - if)# ip helper - address 20.0.0.1
考题
In what situation would the command ip helper-address be required？（Choose the best answer.）（）A、Only when there is a duplicate IP address caused by a combination of static and dynamic IPaddress allocationsB、On each router that exists between the client and the serverC、Only when a router separates the client from the serverD、Only if the DHCP sever issues a DHCPNAK to the initial requestE、Only when the client is on the same subnet as the serverF、Only when the DHCP pool is out of IP addresses
考题
What are the "bound IP addresses" used for in LDP？（）A、For each such address and mask /32, one label binding is created.B、As the TCP endpoint, IP addresses are used by the LDP session.C、These addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.D、These addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly.
考题
Which three of the following protocols will be forwarded to a host specified by the ip helper - address interface configuration command if the configuration has not been modified by the ip forward - protocol udp global con figuration command?（）A、BOOTPB、TFTPC、ARPD、DNSE、proxy - ARPF、FTP
考题
Which of the following statements are true concerning the command ip sla monitor responder typetcpconnect ipaddress 10.1.1.1 port 23？（Choose all that apply.）（）A、The command will initiate a probe with a destination IP address of 10.1.1.1B、The command is used on the IP SLA responder and the IP SLA sourceC、The command will allow only source address 10.1.1.1 to source probesD、The command will initiate a probe with a destination Telnet portE、The command is used to make the router a responderF、The command will initiate a probe with a source port of 23
考题
What is the purpose of a network mask?（）A、It is used to identify the maximum hop count of a subnetworkB、It is used to identify an IP address as either private or publicC、It is used to identify the network to which an IP address belongsD、It is used to identify the total number of bits present in an IP address
考题
When you execute the "ip helper-address" command on a router， which three UDP ports getenabled automatically by default？（）A、53（DNS）B、69（TFTP）C、515（LPR）D、161（SNMP）E、49（TACACS）
考题
What TCP/IP stack configuration features can DHCP provide, in addition to assigning an IP address? (Choose three.)（）A、default gatewayB、DNS serversC、FTP serverD、helper addressE、subnet maskF、TFTP server
考题
What is the purpose of a network mask?（）A、It is used to identify the maximum hop count of a subnetwork.B、It is used to identify an IP address as either private or public.C、It is used to identify the network to which an IP address belongs.D、It is used to identify the total number of bits present in an IP address.
考题
An authentication request for a PPP over ATM client has been returned to the router with an address of 255.255.255.254. What does this indicate to the router?（）A、A static IP address is used.B、An unnumbered address is used.C、The returned RADIUS address is used.D、The IP address-pool configuration is used.
考题
单选题An authentication request for a PPP over ATM client has been returned to the router with an address of 255.255.255.254. What does this indicate to the router?（）A
A static IP address is used.B
An unnumbered address is used.C
The returned RADIUS address is used.D
The IP address-pool configuration is used.
考题
单选题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 serverB
IP Helper is used to prevent the router form forwarding IP broadcastsC
IP Helper is used to allow IPX clients to communicate with IP-based serversD
IP Helper is used to accommodate compatibility routers using different IP routing protocolsE
None of the other alternatives apply
考题
单选题What is the purpose of a network mask?（）A
It is used to identify the maximum hop count of a subnetwork.B
It is used to identify an IP address as either private or public.C
It is used to identify the network to which an IP address belongs.D
It is used to identify the total number of bits present in an IP address.
考题
单选题What is the purpose of a network mask?（）A
It is used to identify the maximum hop count of a subnetworkB
It is used to identify an IP address as either private or publicC
It is used to identify the network to which an IP address belongsD
It is used to identify the total number of bits present in an IP address
考题
单选题An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?（）A
Issue the show ip route command on Router AB
Issue the show ip route command on Router BC
Issue the show cdp neighbors command on Router BD
Issue the show cdp neighbors detail command on Router CE
Issue the show arp command on Router AF
Issue the show arp command on Router B
考题
单选题What are the "bound IP addresses" used for in LDP？（）A
For each such address and mask /32, one label binding is created.B
As the TCP endpoint, IP addresses are used by the LDP session.C
These addresses are used to find the label binding to put in the LFIB, by looking up these IP addresses in the routing table.D
These addresses are used for penultimate hop popping (PHP) when forwarding packets to the next router directly.
考题
多选题Which three of the following protocols will be forwarded to a host specified by the ip helper - address interface configuration command if the configuration has not been modified by the ip forward - protocol udp global con figuration command?（）ABOOTPBTFTPCARPDDNSEproxy - ARPFFTP
考题
多选题Which of the following statements are true concerning the command ip sla monitor responder typetcpconnect ipaddress 10.1.1.1 port 23？（Choose all that apply.）（）AThe command will initiate a probe with a destination IP address of 10.1.1.1BThe command is used on the IP SLA responder and the IP SLA sourceCThe command will allow only source address 10.1.1.1 to source probesDThe command will initiate a probe with a destination Telnet portEThe command is used to make the router a responderFThe command will initiate a probe with a source port of 23
考题
多选题When you execute the "ip helper-address" command on a router， which three UDP ports getenabled automatically by default？（）A53（DNS）B69（TFTP）C515（LPR）D161（SNMP）E49（TACACS）
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