20.Network Layer: Internet Protocol

In IPv6, the _______ field in the base header restricts the lifetime of a datagram.

• version
• next-header
• hop limit
• neighbor-advertisement

In IPv4 header, an HLEN value of decimal 10 means _______.

• there are 10 bytes of options
• there are 40 bytes of options
• there are 10 bytes in the header
• there are 40 bytes in the header

In IPv4, an HLEN value of decimal 10 means _______.

• there are 10 bytes of options
• there are 40 bytes of options
• there are 40 bytes in the header
• none of the above

In IPv6, the _______ field in the base header and the sender IP address combine to indicate a unique path identifier for a specific flow of data.

• flow label
• next header
• hop limit
• destination IP address

In IPv4, what is the value of the total length field in bytes if the header is 28 bytes and the data field is 400 bytes?

• 428
• 407
• 107
• 427

The term ________ means that IP provides no error checking or tracking. IP assumes the unreliability of the underlying layers and does its best to get a transmission through to its destination, but with no guarantees.

• reliable delivery
• connection-oriented delivery
• best-effort delivery
• none of the above

The ________ protocol is the transmission mechanism used by the TCP/IP suite.

• ARP
• IP
• RARP
• none of the above

In IPv4, what is the length of the data field given an HLEN value of 12 and total length value of 40,000?

• 39,988
• 40,012
• 40,048
• 39,952

In IPv4, what is needed to determine the number of the last byte of a fragment?

• Identification number
• Offset number
• Total length
• (b) and (c)

The IPv4 header size _______.

• is 20 to 60 bytes long
• is 20 bytes long
• is 60 bytes long
• none of the above