Typically, an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks. Such addresses are referred to as multicast addresses, and the act of sending a packet from a source to the members of a （1）group is referred to as multicasting. Multicasting done （2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the （3）multicast group recognize the multicast address and （4）the packet. In this case, only a single copy of the packet is ever transmitted. This technique works because of the （5）nature of a LAN: A transmission from any one station is received by all other station on the LAN.空白（1）应选（ ）。 A. NumerousB. only C. single D. multicast
Typically, an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks. Such addresses are referred to as multicast addresses, and the act of sending a packet from a source to the members of a （1）group is referred to as multicasting. Multicasting done （2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the （3）multicast group recognize the multicast address and （4）the packet. In this case, only a single copy of the packet is ever transmitted. This technique works because of the （5）nature of a LAN: A transmission from any one station is received by all other station on the LAN.
空白（1）应选（ ）。
空白（1）应选（ ）。
A. Numerous
B. only
C. single
D. multicast
B. only
C. single
D. multicast
参考解析
解析：一般来说，一个IP地址对应网络上的一台主机。IP地址还能标识一组或多个网络上的主机组的地址，这种地址叫IP组播地址，把数据源发出的数据包传送给相应组播组成员的过程叫组播。组播在单一局域网段是直接传送的，使用IEEE802以及一些局域网协议如物理层协议。当包含一个组播地址的数据包在局域网段传输时，属于接收数据的组播组中的工作站能够识别这个地址并接收数据包。采用这种方式只需传送一份数据包副本，这是因为局域网是广播通信这个性质：即由一个工作站发出的数据可以被同一局域网内的所有工作站接收。
相关考题：
A Bridged 1483 service offering is grouping DSL users into a large subnet.What are three characteristics of this configuration?() A.It burns IP addresses.B.It conserves IP addresses.C.A group of PVCs is a subnet.D.It provides an umbered IP address to the ERXE.It provides an IP unnumbered address to ERX
The Dynamic Host Configuration Protocol provides configuration parameters to Intemet （ ）. DHCP consists of two components: a （ ） for delivering host-specific configuration parameters from a DHCP server to a host and a mechanism for allocation of network addresses to hosts. DHCP is built on a client-server model, where designated DHCP server hosts allocate network addresses and deliver （ ） parameters to dynamically configured hosts. DHCP supports three mechanisms for IP address allocation. In automatic allocation, DHCP assigns a （ ） IP address to a client. In dynamic allocation, DHCP assigns an IP address to a client for a limited period of time. In manual allocation, a clients IP address is assigned by the network （ ）, and DHCP is used simply to convey the assitped address to the client.A.switchB.termmalC.hostsD.usersA.routerB.protocolC.hostD.mechanismA.controlB.broadcastC.configurationD.transmissionA.permanentB.dynamicC.cormectionD.sessionA.controllerB.userC.hostD.administrator
Typically, an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks. Such addresses are referred to as multicast addresses, and the act of sending a packet from a source to the members of a （1）group is referred to as multicasting. Multicasting done （2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the （3）multicast group recognize the multicast address and （4）the packet. In this case, only a single copy of the packet is ever transmitted. This technique works because of the （5）nature of a LAN: A transmission from any one station is received by all other station on the LAN.A.numerousB.onlyC.singleD.multicast@@@SXB@@@A.withinB.out ofC.beyondD.cover@@@SXB@@@A.differentB.uniqueC.specialD.corresponding@@@SXB@@@A.rejectB.acceptC.discardD.transmit@@@SXB@@@A.multicastB.unicastC.broadcastD.multiple unicast
Which statement describes the process of dynamically assigning IP addresses by the DHCP server?() A. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.B. Addresses are permanently assigned so that the hosts uses the same address at all times.C. Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.D. Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.
How does a DHCP server dynamically assign IP addresses to hosts?() A.Addresses are permanently assigned so that the host uses the same address at all times.B.Addresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.C.Addresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.D.Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
Refer to the diagram. All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? () A.The subnet mask in use is 255.255.255.192.B.The subnet mask in use is 255.255.255.128.C.The IP address 172.16.1.25 can be assigned to hosts in VLAN1D.The IP address 172.16.1.205 can be assigned to hosts in VLAN1E.The LAN interface of the router is configured with one IP address.F.The LAN interface of the router is configured with multiple IP addresses.
Typically, an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks. Such addresses are referred to as multicast addresses, and the act of sending a packet from a source to the members of a （1）group is referred to as multicasting. Multicasting done （2）the scope of a single LAN segment is straightforward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN Segment. Those stations that are members of the （3）multicast group recognize the multicast address and （4）the packet. In this case, only a single copy of the packet is ever transmitted. This technique works because of the （5）nature of a LAN: A transmission from any one station is received by all other station on the LAN.空白（5）应选（ ）。 A. Multicast B. unicast C. broadcastD. multiple unicast
Typically，an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks.Such addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a （71）group is referred to as multicasting. Multicasting done （72） the scope of a single LAN segment is straight forward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN segment.Those stations that are members of the （73）multicast group recognize the multicast address and （74）the packet.In this case,only a single copy of the packet is ever transmitted.This technique works because of the （本题）nature of a LAN:A transmission from any one station is received by all other stations on the LAN. A .multicastB. unicastC.broadcastD.multiple unicast
Typically，an IP address refers to an individual host on a particular network. IP also accommodates addresses that refer to a group of hosts on one or more networks.Sunch addresses are referred to as multicast addresses，and the act of sending a packet from a source to the members of a （作答本题）group is referred to as multicasting. Multicasting done （72） the scope of a single LAN segment is straight forward. IEEE 802 and other LAN protocols include provision for MAC-level multicast addresses. A packet with a multicast address is transmitted on a LAN segment.Those stations that are members of the （73）multicast group recognize the multicast address and （74）the packet.In this case,only a single copy of the packet is ever transmitted.This technique works because of the （75）nature of a LAN:A transmission from any one station is received by all other stations on the LAN. A. numerousB. onlyC. singleD.multicast
The Dynamic Host Configuration Protocol provides configuration parameters to Internet（ ）.DHCP consists of two components:a（ ）for delivering host-specifie configuration parameters from a DHCP server to a host and a mechanism for allocation of network addresses to hosts.DHCP is built on a client-server model,where designated DHCP server hosts allocate network addresses and deliver（ ）parameters to dynamically configured hosts.DHCP supports three mechanisms for IP address allocation.In“automatic allocation”,DHCP assigns a（本题）IP address to client.In“dynamic allocation”,DHCP assigns an IP address to a client for a limited period of time.In“manual allocation”,a client’s IP address is assigned by the network（ ）,and DHCP is used simply to convey the assigned address to the client.A.permanentB.dynamicC.connectionD.session
How many IP addresses can be configured in a given interface?（）A、one primary and one secondary IP addressB、one IP addressC、as many IP addresses as you wantD、one primary and multiple secondary IP addresses
Which statement is true about IPv6?（）A、Only one IPv6 address can be assigned to each interface.B、IPv6 hosts use anycast addresses to assign IP addresses to interfaces.C、Each host can a utoconfigure its address without the aid of a DHCP server.D、Only one IPv6 address is assigned per node.
How does a DHCP server dynamically assign IP addresses to hosts?（）A、Addresses are permanently assigned so that the host uses the same address at all times.B、Addresses are assigned for a fixed period of time. At the end of the period, a new request for an address must be made, and another address is then assigned.C、Addresses are leased to hosts. A host will usually keep the same address by periodically contacting the DHCP server to renew the lease.D、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.
When a DHCP server is configured, which two IP addresses should never be assignable to hosts? （）A、network or subnetwork IP addressB、broadcast address on the networkC、IP address leased to the LAND、IP address used by the interfacesE、manually assigned address to the clientsF、designated IP address to the DHCP server
What is the purpose of an address book？（）A、It holds security policies for particular hosts.B、It holds statistics about traffic to and from particular hosts.C、It defines hosts in a zone so they can be referenced by policies.D、It maps hostnames to IP addresses to serve as a backup to DNS resolution.
A Bridged 1483 service offering is grouping DSL users into a large subnet.What are three characteristics of this configuration？（）A、It burns IP addresses.B、It conserves IP addresses.C、A group of PVCs is a subnet.D、It provides an umbered IP address to the ERXE、It provides an IP unnumbered address to ERX
In a configuration with redundant supervisors， how many IP addresses are required to configure full remote access via management 0？（） A、 two IP addresses， one for each supervisorB、 three IP addresses， one virtual IP and one physical IP for each supervisorC、 one IP address that is shared among supervisorsD、 none—management 0 will use the IP address from the first SVI that is created
You are a systems administrator and you are about to assign static IP addresses to various servers on your network. For the network 192.168.20.24/29 the router is assigned to the first usable host address, while the last usable host address goes to your Sales server. Which one of the following commands would you enter into the IP properties box of the sales server?（）A、IP address: 192.168.20.14 Subnet Mask: 255.255.255.248 Default Gateway:192.168.20.9B、IP address: 192.168.20.254 Subnet Mask: 255.255.255.0 Default Gateway:192.168.20.1C、IP address: 192.168.20.30 Subnet Mask 255.255.255.248 Default Gateway:192.168.20.25D、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.17E、IP address: 192.168.20.30 Subnet Mask 255.255.255.240 Default Gateway:192.168.20.25
Which statement describes the process of dynamically assigning IP addresses by the DHCP server?（）A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.B、Addresses are permanently assigned so that the hosts uses the same address at all times.C、Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made.D、Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease.
When you enable port security on an interface that is also configured with a voice VLAN， what is the maximum number of secure MAC addresses that should be set on the port？（）A、No more than one secure MAC address should be set.B、The default will be set.C、The IP phone should use a dedicated port， therefore only one MAC address is needed per port.D、No value is needed if the switchport priority extend command is configured. E、No more than two secure MAC addresses should be set.
How dose a DHCP server dynamically assign IP address to host?（）A、Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement.B、Addresses are assigned for a fixed period of time.At the end of period,a newquest for an address must be made,and another address is then assigned.C、Addresses are leased to host.A host will usually keep the same address by periodically contacting the DHCP sever to renew the lease.D、Addresses are permanently assigned so that the host uses the same address at all times.
Which destination addresses will be used by Host A to send data to Host C?（）A、the IP address of Switch 1B、the MAC address of Switch 1C、the IP address of Host CD、the MAC address of Host CE、the IP address of the router's E0 interfaceF、the MAC address of the router's E0 interface
DNS servers provide what service?（）A、They run a spell check on host names to ensure accurate routingB、They convert domain names into IP addressC、Given an IP address,they determine the name of the host that is soughtD、They map individual hosts to their specific IP addresses
单选题What is the purpose of an address book？（）AIt holds security policies for particular hosts.BIt holds statistics about traffic to and from particular hosts.CIt defines hosts in a zone so they can be referenced by policies.DIt maps hostnames to IP addresses to serve as a backup to DNS resolution.
多选题Refer to the diagram. All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? （）AThe subnet mask in use is 255.255.255.192.BThe subnet mask in use is 255.255.255.128.CThe IP address 172.16.1.25 can be assigned to hosts in VLAN1DThe IP address 172.16.1.205 can be assigned to hosts in VLAN1EThe LAN interface of the router is configured with one IP address.FThe LAN interface of the router is configured with multiple IP addresses.
单选题Which statement is true about IPv6?（）AOnly one IPv6 address can be assigned to each interface.BIPv6 hosts use anycast addresses to assign IP addresses to interfaces.CEach host can a utoconfigure its address without the aid of a DHCP server.DOnly one IPv6 address is assigned per node.
单选题DNS servers provide what service?（）AThey run a spell check on host names to ensure accurate routingBThey convert domain names into IP addressCGiven an IP address,they determine the name of the host that is soughtDThey map individual hosts to their specific IP addresses
单选题In a configuration with redundant supervisors， how many IP addresses are required to configure full remote access via management 0？（）A two IP addresses， one for each supervisorB three IP addresses， one virtual IP and one physical IP for each supervisorC one IP address that is shared among supervisorsD none—management 0 will use the IP address from the first SVI that is created