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網(wǎng)絡(luò)工程師每日一練試題內(nèi)容(2023/7/27)
試題1
TheAddress Resolution Protocol(ARP)wasDeveloped to enableCommunication onAn InternetworkAnd performA required function in IP routing.ARP liesBetween layers( )of the OSI model,andAllowsComputers to introduce each otherAcrossA network prior toCommunication.APR finds the( )address ofA host from its known( )address.BeforeADevice sendsADatagram toAnotherDevice,it looks in itsARPCache to see if there isA MACAddressAndCorresponding IPAddress for theDestinationDevice.If there is no entry,the soureeDevice sendsA( )message to everyDevice on the network.EachDeviceCompares the IPAddress to its own.Only theDevice with the matching IPAddress replies withA packetContaining the MACAddress for theDevice(except in theCase of “proxyARP”).The sourceDeviceAdds the( )device MACAddress to itsARP table for future reference.查看答案
試題參考答案:B 、C 、A 、C 、B
試題2
內(nèi)聚性和耦合性是度量軟件模塊獨(dú)立性的重要準(zhǔn)則,軟件設(shè)計(jì)時(shí)應(yīng)力求 ( ) 。
A、高內(nèi)聚,高耦合
B、高內(nèi)聚,低耦合
C、低內(nèi)聚,高耦合
D、低內(nèi)聚,低耦合
查看答案
試題參考答案:B
試題3
()針對(duì)TCP連接進(jìn)行攻擊。查看答案
試題參考答案:A
試題4
網(wǎng)管員在Windows系統(tǒng)中,使用下面的命令∶查看答案
試題參考答案:A
試題5
在 Linux 操作系統(tǒng)中手工安裝 Apache 服務(wù)器時(shí),默認(rèn)的 Web 站點(diǎn)的目錄為 ( ) 。
A、/etc/httpd
B、/var/log/httpd
C、/etc/home
D、/home/httpd
查看答案
試題參考答案:D
試題6
在IPv4地址192.168.1.0/24中,表示主機(jī)的二進(jìn)制位數(shù)是()位。查看答案
試題參考答案:A
試題7
三層網(wǎng)絡(luò)設(shè)計(jì)方案中,()是匯聚層的功能。查看答案
試題參考答案:D
試題8
以下關(guān)于Cache的敘述中,正確的是 ( ) 。
A、在容量確定的情況下,替換算法的時(shí)間復(fù)雜度是影響Cache命中率的關(guān)鍵因素
B、Cache的設(shè)計(jì)思想是在合理成本下提高命中率
C、Cache的設(shè)計(jì)目標(biāo)是容量盡可能與主存容量相等
D、CPU中的Cache容量應(yīng)該大于CPU之外的Cache容量
查看答案
試題參考答案:B
試題9
有較高實(shí)時(shí)性要求的應(yīng)用()。查看答案
試題參考答案:C
試題10
Traditional IP packet forwarding analyzes the ( 1)IP address contained in then network layee header of each packet as the packet rravels from its sourse to its final destination. A router analyzes the destination IP address independently at each hop in the network. Dynamic ( 2) protocols or staitic configuration builds the database needed to analyze the destination IP address(the routing table). The process of implementing traditional IP routing also is called hop-by-hop destination-based ( 3)routing. Although successful,and obviously widely deployed,certain restrictions,which have been realized for some time,exist for this method of packet forwarding that diminish its ( 4).New techniques are therefore required to address and expand the functionality of an IP-based network infrastructure. This first chapter concertrates on idenfifying these restrictions.and presents a new architecture,known as multiprotocol( 5)switching,that provides solutions to some of this restrictions. ( 1).A.datagram
B.destination
C.connection
D.service
( 2).A.routing
B.forwarding
C.transmission
D.managerment
( 3).A.anycast
B.multicast
C.broadcast
D.unicast
( 4).A.reliability
B.flexibility
C.stability
D.capability
( 5).A.cost
B.cast
C.mark
D.label
查看答案
試題參考答案:B、A、D、B、D
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