Exam 3: Basic Ip Packet Structures: Headers and Payloads

What is the purpose of the Identification field in IPv4?

Though defined in terms of seconds, a TTL value is implemented as a number of hops that a packet can travel before being discarded by a router.

Match each item with a statement below. a.Voice over IP (VoIP) b.per-hop behavior (PHB) c.Fragment Offset field d.Maximum Datagram Lifetime (MDL) e.6to4 f.precedence g.path MTU (PMTU) Discovery h.Jumbogram i.time to live (TTL) -a technique used by IPv6 nodes to determine the size of packets that can be transmitted along a proposed network path from a source to a network address

Unlike IPv4 packets, IPv6 packets ensure that data or application information is successfully transported from a source to a destination node on a network.

Match each item with a statement below. a.Voice over IP (VoIP) b.per-hop behavior (PHB) c.Fragment Offset field d.Maximum Datagram Lifetime (MDL) e.6to4 f.precedence g.path MTU (PMTU) Discovery h.Jumbogram i.time to live (TTL) -a specification for allowing very large (beyond 4-gigabyte) packets to be transported using IPv6

Which RFC is used to define a method for differentiating services for network traffic using the six high-order bits of the byte that was formerly the 3-bit Precedence field and the first bit of the TOS field?

In IPv4, what is the maximum time to live value?

Because PHB is independent of how individual routers are configured, the end-to-end behavior of traffic is predictable.

Jumbograms use which of the following extension headers to add an alternate Packet Length field of 32 bytes?

Match each item with a statement below. a.Voice over IP (VoIP) b.per-hop behavior (PHB) c.Fragment Offset field d.Maximum Datagram Lifetime (MDL) e.6to4 f.precedence g.path MTU (PMTU) Discovery h.Jumbogram i.time to live (TTL) -an indication of the remaining distance that a packet can travel

Match each item with a statement below. a.Voice over IP (VoIP) b.per-hop behavior (PHB) c.Fragment Offset field d.Maximum Datagram Lifetime (MDL) e.6to4 f.precedence g.path MTU (PMTU) Discovery h.Jumbogram i.time to live (TTL) -a definition of priority for an IP packet

Match each item with a statement below. a.Voice over IP (VoIP) b.per-hop behavior (PHB) c.Fragment Offset field d.Maximum Datagram Lifetime (MDL) e.6to4 f.precedence g.path MTU (PMTU) Discovery h.Jumbogram i.time to live (TTL) -the longest period of time a datagram may exist

If the packet is a fragment, the _________________________ field shows where to place this packet's data when the fragments are reassembled into a single packet.

Describe the IPv4 Header Length field.

In IPv6, which extension header should be used to encrypt data?

What is the recommended extension header ordering in IPv6?

What is the role of the Next Header field in IPv6?

What are the general requirements for the Traffic Class field in an IPv6 header?

Which extension header is designed to carry information that affects routers along a path?

IPv6 jumbograms are specified as a proposed standard in which of the following RFCs?