Answer / sks

Icmp stand for internet control message protocl ,the icmp
packet means that the connectivity between device a is
correct, for e.g. when we ping 10.1.1.1 and its genetated a
icmp packet as a reply.

Answer / vijayu32

ICMP message are sent in several situation's
FOR EX:- When datagram cannot reach it's destination

The purpose of these control message is to provide feedback adout the problem in the communication environment and not to make IP reliable.

There are still no gurantees that a datagram will be delivered or a control Message will be returned

Answer / jitendera

Next post-: A good one

Answer / ram

mainly used for error control and reliable delivery.
it sents hello packets to sender and reciever

Default packet size of ipv6?

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What are the 2 functions of the Data Link Mac layer? A.) Handles access to shared media B.) Manages protocol access to the physical network medium C.) Provides SAPs for higher level protocols D.) Allows multiple devices to uniquely identify one another on the data link layer

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In which protocol you manually enable route summarization?

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Which is true regarding half duplex Ethernet operation? A.) Half Duplex ethernet technology provides a transmit circuit connection wired directly to the receiver circuit at the other end B.) Half duplex transmission between stations is achieved by using point to multipoint Ethernet and Fast Ethernet C.) With Half Duplex transmission logically circuits feed into a single cable creating a situation similar to a one way bridge D.) Half Duplex transmission between stations is achieved using Point to Point Ethernet & Fast Ethernet

1 Answers  

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You have a Frame Relay link on serial 1. Which command displays the Local Management Interface (LMI) data link connection identifier (DLCI) and bandwidth for that link? A. show interface serial1 B. show frame-felay serial1 C. show protocol frame-relay serial1 D. show serial1 encapsulation frame-relay

1 Answers  

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What command displays the OSPF section of the running-configuration?

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Select the physical interfaces that PPP can be configured on a Cisco router: A. Asynchronous serial B. HSSI C. ISDN D. Synchronous serial

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What is protocol data unit in ccna?

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Which of the following is true regarding standard ISDN BRI service? A.) ISDN BRI B channels are typically 64K. B.) ISDN BRI can handle only voice. C.) ISDN BRI can handle only data. D.) ISDN BRI has 2B and 1D channels. E.) ISDN BRI D channels are 16K. F.) ISDN BRI can handle voice and data.

2 Answers  

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What is required to support full-duplex Ethernet? A.) Multiple paths between multiple stations on a link B.) Automatic sensing operation by all connected stations C.) Loopback and collision detection disabled D.) Full-duplex NIC cards

1 Answers  

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what is ping utility and how to work.

3 Answers   Cisco,

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Tell me which protocol called rapid protocol?

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