Chapter 8

Which OSI layer sends segments to be encapsulated in an IPv4 or IPv6 packet?

• data link layer

• network layer

• transport layer

• session layer

Which layer is responsible for taking an IP packet and preparing it for transmission over the communications medium?

• physical layer

• network layer

• data link layer

• transport layer

What is the term for splitting up an IP packet when forwarding it from one medium to another medium with a smaller MTU?

• encapsulation

• fragmentation

• segmentation

• serialization

Which delivery method does not guarantee that the packet will be delivered fully without errors?

• connectionless

• best effort

• media independent

What are the two most commonly referenced fields in an IPv4 packet header that indicate where the packet is coming from and where it is going? (Choose two.)

• destination IP address

• protocol

• Time to Live

• source IP address

Which statement is correct about IPv4 packet header fields?

• The source and destination IPv4 addresses remain the same while travelling from source to destination.

• The Time to Live field is used to determine the priority of each packet.

• The Total Length and Header Checksum fields are used to reorder a fragmented packet.

• The Version field identifies the next level protocol.

Which field is used to detect corruption in the IPv4 header?

• Header Checksum

• Time to Live

• Protocol

• Differentiated Services (DS)

Which field includes common values such as ICMP (1), TCP (6), and UDP (17)?

• Header Checksum

• Time to Live

• Protocol

• DiffServ

Which three options are major issues associated with IPv4? (Choose three.)

• IP address depletion

• increased network complexity and Internet routing table expansion

• lack of end-to-end connectivity

• global and political boundaries

• too many IPv4 addresses available

Which two options are improvements provided by IPv6 as compared to IPv4?

• header supports additional fields for complex packets

• increased the IP address space

• standardizes the use of NAT

• uses a simpler header to provide improved packet handling