首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
计算机
The Ezonexam network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has be
The Ezonexam network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has be
admin
2009-05-19
72
问题
The Ezonexam network administrator issues the ping 192.168.2.5 command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test? (Choose two)
选项
A、ARP
B、CDP
C、DHCP
D、DNS
E、ICMP
答案
A,E
解析
Explanation:
ARP finds the hardware address of a host from a known IP address. Here’s how it works: when IP has a datagram to send, it must inform a Network Access protocol, such as Ethernet or Token Ring, of the destination’s hardware address on the local network. (It has already been informed by upper-layer protocols of the destination’s IP address.) If IP doesn’t find the destination host’s hardware address in the ARP cache, it uses ARP to find this information.
ICMP works at the Network layer and is used by IP for many different services. ICMP is a management protocol and messaging service provider for IP. Its messages are carried as IP datagrams. RFC 1256 is an annex to ICMP, which affords hosts’ extended capability in discovering routes to gateways. Periodically, router advertisements are announced over the network, reporting IP addresses for the router’s network interfaces. Hosts listen for these network infomercials to acquire route information. A router solicitation is a request for immediate advertisements and may be sent by a host when it starts up.
转载请注明原文地址:https://kaotiyun.com/show/qMhZ777K
本试题收录于:
思科640802题库思科认证分类
0
思科640802
思科认证
相关试题推荐
ScientificMethodisatermdenotingtheprinciplesthatguidescientificresearchandexperimentation,andalsothephilosophic
Fewthingssay"forgetI’mhere"quitesoeloquentlyastheposeoftheshy—theavertedgaze,thehunchedshoulders,thebodypi
Cancerisusedgenericallyformorethan100differentdiseases,includingmalignanttumoursofdifferentsites,suchasbreast,
Writeanessayof160-200wordsbasedonthefollowingdrawings.Inyouressay,youshould1)describethedrawingsbriefly,
Thehumanbraincontains10thousandmillioncellsandeachofthesemayhaveathousandconnections.Suchenormousnumbersused
Twoyearsago,RupertMurdoch’sdaughter,Elisabeth,spokeofthe"unsettlingdearthofintegrityacrosssomanyofourinstituti
Thestandardizededucationalorpsychologicaltests,thatarewidelyusedtoaidinselecting,classifying,assigning,orpromot
UsingFacebookmakespeoplesadder,atleastaccordingtosomeresearch.Burjustwhatisitaboutthesocialnetworkthattakes
You’restuckinaseaofstandstilltrafficwhentheybegin;hungerpangs,thekindthatunleashasteadystreamoffast-foodfa
Theheadmaster’sofficehasassignedyoutoinformstudentsofthechangeinschooltimingstobeputineffectfromthe1stof
随机试题
如下图所示多边形,若采用ET边表算法进行填充,试写出该多边形的ET表和当扫描线Y=3时的有效边表(AET表)。
Kerberos服务任务被分配到两个相对独立的服务器:()服务器和()服务器,它同时应该连接并维护一个中央数据库存放用户口令、标识等重要信息。
治疗心室颤动最有效的措施是
A.构音训练B.冷刺激C.舌部运动训练D.下颌运动训练E.口唇闭合训练改善食物或水从口中漏出的训练是
A、血热证B、肾阴虚证C、脾不摄血证D、胃火亢盛证E、肝火上炎证牙龈出血,红肿热痛者多见于
下列关于记账凭证的说法中,错误的是()。
阅读下面材料,回答问题。材料一爱德华六世在位时,于1547年通过了被认为是都铎王朝最严厉的惩治流浪汉的法令。该法令把所有无业者都称为流浪汉,给予严厉惩治;健康的流浪汉,将被逮捕,在前胸打上“S”络印,被罚做两年奴隶。如果逃跑将判终身为奴。而逃跑两次,将被
关于声现象.下列说法中正确的是:
根据网络拓扑和需求说明,完成(或解释)路由器R1的配置。R1#configureterminal;进入全局配置模式R1(config)#interraceethernet0;进入端口配嗣模式R1(config-i
EconomistsareworriedabouttheadverseeffectsofsomeF&Bcompaniesdespitetheirexcellentbusinessperformanceforthemome
最新回复
(
0
)