Networking - TCP/IP - Discussion
Discussion Forum : TCP/IP - TCP/IP (Q.No. 12)
12.
Which statements are true regarding ICMP packets?
- They acknowledge receipt of a TCP segment.
- They guarantee datagram delivery.
- They can provide hosts with information about network problems.
- They are encapsulated within IP datagrams.
Answer: Option
Explanation:
Internet Control Message Protocol (ICMP) is used to send error messages through the network, but they do not work alone. Every segment or ICMP payload must be encapsulated within an IP datagram (or packet).
Discussion:
3 comments Page 1 of 1.
Ravina B said:
7 years ago
Packet Internet Groper (Ping) uses ICMP echo request and reply messages to check the physical and logical connectivity of machines on an internetwork.
icmp 0 for the reply.
icmp 8 for the request.
icmp 3 for destination unreachable.
icmp 5 redirect.
icmp 11 times exceeded.
icmp 0 for the reply.
icmp 8 for the request.
icmp 3 for destination unreachable.
icmp 5 redirect.
icmp 11 times exceeded.
V V PAVAN said:
1 decade ago
In which purpose errors send to ICMP please tell me?
Rejitha Nidhi said:
1 decade ago
Short for Internet Control Message Protocol, an extension to the Internet Protocol (IP) defined by RFC 792. ICMP supports packets containing error, control, and informational messages. The PING command, for example, uses ICMP to test an Internet connection.
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