Computer Communications Network - Chapter 2

In TCP/IP, a logical connection between an entity at the network layer can be made with another entity at the ________ layer. A)network B)transport C)data-link D)physical

A) network

In TCP/IP, a message belonging to the transport layer is decapsulated from a packet at the ________ layer. A)network B)transport C)data-link D)physical

A) network

In the TCP/IP protocol suite, a logical address is the identifier at the _______________. A)network layer B)transport layer C)data-link layer D)application layer

A) network layer

A link-layer switch is involved in ______________ layers of the TCP/IP protocol suite. A)two B)three C)four D)five

A) two

The application layer in the TCP/IP protocol suite is usually considered to be the combination of ________layers in the OSI model. A)application, presentation, and session B)application, transport, and network C)application, data-link, and physical D)network, data-link, and physical

A)application, presentation, and session

In TCP/IP, a message at the transport layer is encapsulated in a packet at the ________ layer. A)network B)transport C)data-link D)physical

A)network

In the TCP/IP protocol suite, the ______ layer is responsible for moving frames from one hop (node) to the next. A)physical B)data-link C)transport D)network

B) data-link

A router is involved in ____________ layers of the TCP/IP protocol suite. A)two B)three C)four D)five

B) three

In TCP/IP, a message at the application layer is encapsulated in a packet at the ________ layer. A)network B)transport C)data-link D)physical

B) transport

The_________ layer is responsible for the delivery of a message from one process to another. A)physical B)transport C)network D)application

B) transport

In the TCP/IP protocol suite, a port number is the identifier at the____________. A)application layer B)transport layer C)network layer D)physical layer

B) transport layer

The transport-layer packet in the TCP/IP protocol suite is called _______________. A)a message B)a datagram C)a segment or a user datagram D)a frame

C) A segment or a user datagram

In the TCP/IP protocol suite, which of the following is an application layer protocol? A)The User Datagram Protocol (UDP) B)The Internet Protocol (IP) C)The File Transfer Protocol (FTP) D)The Transmission Control Protocol (TCP)

C) The File Transfer Protocol (IP)

In the TCP/IP protocol suite, which of the following is a network layer protocol? A)The Stream Control Transmission Protocol (SCTP) B)The Secure Shell (SSH) C)The Internet Protocol (IP) D)User Datagram Protocol (UDP)

C) The Internet Protocol (IP)

In TCP/IP, a logical connection between an entity at the data-link layer can be made with another entity at the ________ layer. A)network B)transport C)data-link D)physical

C) data-link

In TCP/IP, a message belonging to the network layer is decapsulated from a packet at the ________ layer. A)network B)transport C)data-link D)physical

C) data-link

The TCP/IP protocol suite consists of _______ layers. A)two B)three C)five D)six

C) five

In TCP/IP, a packet at the third layer carries data belonging to the ________ layer and the header belonging to the _________ layer. A)third; third B)third; fourth C)fourth; third D)fourth; fourth

C) fourth; third

In the TCP/IP protocol suite, the physical layer is concerned with the movement of _______ over the physical medium. A)programs B)dialogs C)protocols D)bits

D) Bits

In the TCP/IP protocol suite, which of the following is a transport-layer protocol? A)The Internet Control Message Protocol (ICMP) B)The Internet Protocol (IP) C)The Address Resolution Protocol (ARP) D)The Transmission Control Protocol (TCP)

D) The Transmission Control Protocol (TCP)

The Internet Protocol (IP) is ________ protocol. A)a reliable B)a connection-oriented C)a reliable and connection-oriented D)an unreliable

D) an unreliable