●We have already covered the topic of network addresses. The first(71) in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a (72) to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a (73)address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.In classes A,B,and C,an address with all Is for the netid and hostid (32 bits) defines a( 74) address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However,a router will block a packet having this type ofaddress to confine the broadcasting to the (75) network. Note that this address belongs to class E.(71) A.datagramB.functionC.addressD.service(72) A.routerB.switchC.hubD.firewall(73)A.sourceB.destinationC.localD.remote(74) A.unicastB.multicastC.broadcastD.anycast(75) A.neighborB.nextC.remoteD.local
●We have already covered the topic of network addresses. The first(71) in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a (72) to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a (73)address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.
In classes A,B,and C,an address with all Is for the netid and hostid (32 bits) defines a( 74) address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However,a router will block a packet having this type ofaddress to confine the broadcasting to the (75) network. Note that this address belongs to class E.
(71) A.datagram
B.function
C.address
D.service
(72) A.router
B.switch
C.hub
D.firewall
(73)A.source
B.destination
C.local
D.remote
(74) A.unicast
B.multicast
C.broadcast
D.anycast
(75) A.neighbor
B.next
C.remote
D.local
相关考题：
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●A( 71) is a dedicated storage network that provides access to consolidated, block level storage. It is primarily used to make storage devices accessible to servers so that the devices appear as locally attached to the operating system.(71) A. network-attached storageB. storage area networkC. direct attached storageD. computer cluster
－ What if he still doesn't pay up －() A、If it's a small amount we write it off as bad debt. For larger sums we…B、I've got to hurry.C、I have already done that.
－ Where shall we have the meeting －() A、In the first conference room.B、The first conference room is spacious.C、The first conference room isn’t good.
“ ( )people have already joined our health club, and we haven’t started advertising yet.“ A. lotB. FewC. A fewD. Too few
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()separate cover, we have already sent you samples () various sizes of shoes.A、Below,ofB、Under,ofC、By,ofD、By,including
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Networks can be interconnected by different devices in the physical layer networks can be connected by (71) or hubs．which just move the bits from one network to an identical network．One layer up we find bridges and switches which operate at data link layer．They can accept (72) ，examine the MAC address and forward the frames to a different network while doing minor protocol translation in the process in me network layer，we have routers that can connect two networks，If two networks have (73) network layer，the router may be able to translate betweenthe packer formats．In the transport layer we find transport gateway，which can interface between two transport connections Finally，in the application layer，application gateways translate message (74) ．As an example，gateways between Internet e-mail and X，400 e-mail must (75) thee-mail message and change various header fields．(68)A．reapersB．relaysC．packagesD．modems
Refer to the above exhibit. Why are the EIGRP neighbors for this router not learning the routes redistributed from OSPF?() A. Redistribution must be enabled mutually (in both directions) to work correctly.B. auto - summary causes the OSPF routes redistributed into EIGRP to be summarized; thus the OSPF network 116.16.34 is summarized to 116.3 4.0.0, which is already covered by the EIGRP protocol.C. Default metrics are not configured under EIGRP.D. Both routing protocols must have unique autonomous system numbers for redistribution to function correctly.
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The villagers have already known __________ we'll do is to build the bridge.A.thisB.thatC.whatD.which
We have already covered the topic of network addresses. The first（） in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a.（72） to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a （73）address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.In classes A,B,and C,an address with all Is for the netid and hostid (32 bits) defines a（74） address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However,a router will block a packet having this type ofaddress to confine the broadcasting to the （75） network. Note that this address belongs to class E.A.datagram B.function C.address D.service
We have already covered the topic of network addresses. The first（71） in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a.（72） to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a （73）address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.In classes A,B,and C,an address with all Is for the netid and hostid (32 bits) defines a（） address in the current network.A host that wants to send a message to every other host can use this address as a destination address in an IP packet. However,a router will block a packet having this type ofaddress to confine the broadcasting to the （75） network. Note that this address belongs to class E.A.unicast B.multicast C.broadcast D.anycast
A:Where shall we have the meeting? B:（）AThe first conference room is spaciousBThe first conference room isn't goodCIn the first conference room
A:Where shall we have the meeting? B:（）A、The first conference room is spaciousB、The first conference room isn't goodC、In the first conference room
翻译：Now that we have already made an inquiry on your articles, will you please make an offer before the end of this month?
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There are 3 steps to confirm whether a range of IP address can be summarized. When of thefollowing is used in each of these 3 steps？（）A、 The first number in the contiguous block of addressesB、 The last number in the contiguous block of addressesC、 The size of the contiguous block of addressesD、 The subnet mask of the original network address
单选题There are 3 steps to confirm whether a range of IP address can be summarized. When of thefollowing is used in each of these 3 steps？（）A The first number in the contiguous block of addressesB The last number in the contiguous block of addressesC The size of the contiguous block of addressesD The subnet mask of the original network address
问答题翻译：Now that we have already made an inquiry on your articles, will you please make an offer before the end of this month?
单选题What does the author mean by moms to be in the last paragraph?AWomen who are pregnant, especially for the first time.BWomen who dream of having babies for the first time.CWomen who already have children.DWomen who have just got babies for the first time.