Internet Control Message Protocol (ICMP) has been designed to compensate _________

• A. Error-reporting
• B. Error-correction
• C. Host and management queries
• D. All of the mentioned

Header size of the ICMP message is _________

• A. 8-bytes
• B. 8-bits
• C. 16-bytes
• D. 16-bits

During error reporting, ICMP always reports error messages to ________

• A. Destination
• B. Source
• C. Next router
• D. Previous router

Which of these is not a type of error-reporting message?

• A. Destination unreachable
• B. Source quench
• C. Router error
• D. Time exceeded

ICMP error message will not be generated for a datagram having a special address such as _______

• A. 127.0.0.0
• B. 12.1.2
• C. 11.1
• D. 127

When a router cannot route a datagram or host cannot deliver a datagram, the datagram is discarded and the router or the host sends a ____________ message back to the source host that initiated the datagram.

• A. Destination unreachable
• B. Source quench
• C. Router error
• D. Time exceeded

The source-quench message in ICMP was designed to add a kind of ____________ to the IP.

• A. Error control
• B. Flow control
• C. Router control
• D. Switch control

In case of time exceeded error, when the datagram visits a router, the value of time to live field is _________

• A. Remains constant
• B. Decremented by 2
• C. Incremented by 1
• D. Decremented by 1

Two machines can use the timestamp request and timestamp replay messages to determine the ___________ needed for an IP datagram to travel between them.

• A. Half-trip time
• B. Round-trip time
• C. Travel time for the next router
• D. Time to reach the destination/source

During debugging, we can use the ____________ program to find if a host is alive and responding.

• A. Traceroute
• B. Shell
• C. Ping
• D. Java