Error Reporting Messages Present Icmp
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What Is The Purpose Of Including The Ip Header And First 8 Bytes Of Datagram Data?
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and RARP Address Translation Basic Addressing IP (Network) TCP (Transport) UDP (Transport) ICMP Hardware Cabling Wireless media Outside Connections Ethernet Token Ring ARCnet what is the maximum value of the pointer field in a parameter-problem message? AppleTalk FDDI IPX/SPX NetBEUI AppleTalk SNA Others Simple Routing More Complex
Benefit Of Autoconfiguration
Routing IP Masquerading Firewalls Domain Name Service (DNS) Virtual Private Networking DHCP BOOTP RPC and NFS
Explain The Benefit Of Autoconfiguration
Broadcasting and Multicasting IGMP Dynamic Routing Protocols Simple Mail Transfer Protocol (SMTP) Simple Network Management Protocol Network Services Installing Drivers Network Operating Systems Applications Wide Area Networks http://www.tcpipguide.com/free/t_ICMPVersion4ICMPv4ErrorMessageTypesandFormats.htm Backing up the network Fault Tolerance Troubleshooting Commonly used Network Ports Networking Terms and Definitions Networking RFCs and Protocols Further Reading Credits Networking Independent Home Internet Control Message Protocol Internet Control Message Protocol (ICMP) defined by RFC 792 and RFC 1122 is used for network error reporting and generating messages that require attention. The http://www.comptechdoc.org/independent/networking/guide/neticmp.html errors reported by ICMP are generally related to datagram processing. ICMP only reports errors involving fragment 0 of any fragmented datagrams. The IP, UDP or TCP layer will usually take action based on ICMP messages. ICMP generally belongs to the IP layer of TCP/IP but relies on IP for support at the network layer. ICMP messages are encapsulated inside IP datagrams. ICMP will report the following network information: Timeouts Network congestion Network errors such as an unreachable host or network. The ping command is also supported by ICMP, and this can be used to debug network problems. ICMP Messages: The ICMP message consists of an 8 bit type, an 8 bit code, an 8 bit checksum, and contents which vary depending on code and type. The below table is a list of ICMP messages showing the type and code of the messages and their meanings. TypeCodesDescriptionPurpose 00Echo replyQuery 30Network UnreachableError 31Host UnreachableError 32Protocol UnreachableError 33Protocol UnreachableError 34Fragmentation needed with don't fr
QuizChapter 8 QuizChapter 9 QuizChapter 10 QuizChapter 11 QuizChapter 12 QuizChapter 13 QuizChapter 14 QuizChapter 15 QuizChapter 16 QuizChapter 17 QuizChapter 18 QuizChapter 19 QuizChapter 20 QuizChapter 21 QuizChapter 22 QuizChapter 23 QuizChapter http://highered.mheducation.com/sites/0072967722/student_view0/chapter_9_quiz.html 24 QuizChapter 25 QuizChapter 26 QuizChapter 27 QuizChapter 28 QuizFeedbackHelp CenterChapter 9 Quiz1ICMP is a _________ layer protocol.A)data linkB)transportC)networkD)none of the above2ICMP messages are divided into two broad categories:A)query and error reporting messagesB)request and response messagesC)request and reply messagesD)none of the above3An ICMP message has _____ header and a variable-size data section.A)a 16-byteB)a 32-byteC)an 8-byteD)none of the above4Which of the following is error reporting true about ICMP messages?A)An ICMP error message may be generated for an ICMP error message.B)An ICMP error message may be generated for each fragment.C)An ICMP error message may be generated for a multicast datagram.D)none is true5Which of the following is true about ICMP messages?A)An ICMP error message may be generated for an ICMP error message.B)An ICMP error message may be generated what is the only for the first fragment.C)An ICMP error message may be generated for a multicast datagram.D)none is true6Which of the following is true about ICMP messages?A)An ICMP error message may be generated for an ICMP error message.B)An ICMP error message may be generated only for each fragment.C)No ICMP error message will be generated for a datagram having a special address such as 127.0.0.0 or 0.0.0.0.D)none is true7If a host needs to synchronize its clock with another host, it sends a _______ message.A)timestamp-requestB)source-quenchC)router-advertisementD)none of the above8The purpose of echo request and echo reply is to _______.A)report errorsB)check node-to-node communicationC)check packet lifetimeD)none of the above9In error reporting the encapsulated ICMP packet goes to _______.A)the original senderB)the receiverC)a routerD)none of the above10What field uniquely identifies the kind of ICMP message (for example, echo reply versus echo request)?A)typeB)codeC)option IDD)none of the above11When the hop-count field reaches zero and the destination has not been reached, a _______ error message is sent.A)destination-unreachableB)time-exceededC)parameter-problemD)none of the above12When all fragments of a message have not been received within the designated amount of time, a _______ error message is sent.A)source-quenchB)time-exceededC)parameter-problemD)none of the above13Errors
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