Chapter 5

How many host addresses are available on a /28 network?

14

TCP has a

192 bit header (24 bytes)

A typical TCP segment has a _______ header of control information. 32-bit 64-bit 20-byte 190-bit 32-byte

20-byte

A subnet mask of ___________ means that all computers with only the same first two bytes in their IPv4 addresses are on the same subnet. 11111111.0.0.0 255.255.255.0 255.0.0.0 255.255.0.0 255.255.255.255

255.255.0.0

Assume you have been allocated IP address of 208.55.67.0/24 and you create several subnets each with the prefix /29. How many subnets are possible?

32

Assume you have been allocated IP address of 208.55.67.0/24 and you create several subnets each with the prefix /29. What is the increment value for each subnet? Remember, the increment value (see page 155 of text) is the amount by which the subnet address increases from one subnet to the next.

8

A multicast message can be used to send a message to a maximum of two other computers.

False

A routing protocol used inside an autonomous system is called an exterior routing protocol.

False

IP is responsible for error-free delivery of packets on a TCP/IP network

False

The transport layer routes messages through the network selecting the best path from the source to the destination station.

False

UDP is not commonly used for: network management control messages RIP messages DHCP addressing messages HTTP requests DNS requests

HTTP request

_______ is the dominant network protocol today and is in use in virtually every LAN and WAN in the world. SDLC SNA IPX/SPX TCP/IP 25

TCP/IP

An example of an application layer address is www.indiana.edu (Links to an external site.)Links to an external site..

True

Domain Name Servers provide the resolution of application layer addresses to their corresponding network layer address.

True

Routing is the process of determining the path or route through the network that a particular packet will follow from the sender to the recipient.

True

Subnet masks tell computers what part of an IP address is to be used to determine whether a destination is in the same subnet or in a different subnet.

True

TCP includes a sequence number so that the packets can be reassembled at the destination in the correct order.

True

The most common protocol for dynamic addressing in TCP/IP networks is the Dynamic Host Configuration Protocol.

True

Which of the following is not given to a client computer when it is first installed on a TCP/IP network so that it has the appropriate routing/addressing information? application layer address subnet mask its own IP address IP address of its DNS server IP address of a gateway, router, or a switch outside of its subnet

application layer address

Transmission Control Protocol/Internet Protocol (TCP/IP)

developed by ARPANET is used on the internet, most popular protocol set

A client computer is typically assigned a data link layer address by a: hardware manufacturer software manufacturer middleware manufacturer network manager who configure a file in a computer's network layer software package ISO

hardware manufacturer

The newer form of IP, version 6 (IPv6): Is running out of address space to support the growth of the Internet has a 20 byte header has an increased address size from 32 bits to 128 bits does not include version number in its header does not include hop limit in its header

has an increased address size from 32 bits to 128 bits

IP

is the netwrok layer protocol and performs addressing and routing

TCP

is the transport layer protocol that links the application layer to the network layer

The transport layer performs three functions

linking the application layer to the network segmenting session management

TCP is

only involved when data comes from or goes to the application layer

Assume that more than one application program is using the same communications line on a particular computer. To be able to decide to which application program a message should be delivered on this computer, TCP/IP relies on the: data link layer address port address application layer address network address IP address

port address

__________ is not an important function of the transport layer. end-to-end delivery of the message taking messages from the application layer routing breaking long messages into smaller segments interfacing with the network layer

routing

The network layer performs two functions

routing addressing

Protocol data unit (PDU) is called what at the transport layer

segment