csi 2

b. logical

When a host on network A sends a message to a host on network B, which address does the router look at? Select one: a. none of the above b. logical c. physical d. port

a. Transport

When data are transmitted from device A to device B, the header from A's layer 4 is read by B's _______ layer. Select one: a. Transport b. Application c. None of the above d. Physical

b. session

n the OSI model, when data is transmitted from device A to device B, the header from A's layer 5 is read by B's _______ layer. Select one: a. transport b. session c. presentation d. physical

c. 16

A port address in TCP/IP is ______ bits long. Select one: a. 48 b. none of the above c. 16 d. 32

b. Added

As the data packet moves from the upper to the lower layers, headers are _______. Select one: a. Rearranged b. Added c. Modified d. Removed

a. 6-byte

Ethernet uses a ______ physical address that is imprinted on the network interface card (NIC). Select one: a. 6-byte b. 32-bit c. 64-bit d. none of the above

a. True

Graphical interfaces can be added to the Linux OS. Select one: a. True b. False

d. 128

IPv6 has _______ -bit addresses. Select one: a. 32 b. variable c. 64 d. 128

d. removed

In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______. Select one: a. added b. rearranged c. modified d. removed

d. presentation

In the OSI model, encryption and decryption are functions of the ________ layer. Select one: a. transport b. application c. session d. presentation

a. process-to-process message delivery

In the OSI model, what is the main function of the transport layer? Select one: a. process-to-process message delivery b. synchronization c. node-to-node delivery d. updating and maintenance of routing tables

c. Network

Layer 2 lies between the physical layer and the _______ layer. Select one: a. Transport b. Data link c. Network d. None of the above

c. Application

Mail services are available to network users through the _______ layer. Select one: a. Transport b. Data link c. Application d. Physical

b. physical

The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN. Select one: a. IP b. physical c. specific d. port

c. five-layer; before

TCP/IP is a ______ hierarchical protocol suite developed ____ the OSI model. Select one: a. seven-layer; before b. five-layer; after c. five-layer; before d. six-layer; before

b. Five

The Internet model consists of _______ layers. Select one: a. Three b. Five c. Seven d. Eight

a. (4)

The Internetworking Protocol (IP) is a ________ protocol. (1) connection-oriented (2) reliable (3) both (1) and (2) (4) none of the above Select one: a. (4) b. (1) c. (3) d. (2)

d. seven

The OSI model consists of _______ layers. Select one: a. three b. five c. eight d. seven

a. OSI

The _______ model shows how the network functions of a computer ought to be organized. Select one: a. OSI b. CCITT c. ISO d. ANSI

c. application

The TCP/IP _______ layer is equivalent to the combined session, presentation, and application layers of the OSI model. Select one: a. data link b. network c. application d. physical

b. True

The Windows Explorer can be used to drag and drop both files and folders. Select one: a. False b. True

c. ISO

The ____ created a model called the Open Systems Interconnection, which allows diverse systems to communicate. Select one: a. none of the above b. OSI c. ISO d. IEEE

c. network

The ______ layer adds a header to the packet coming from the upper layer that includes the logical addresses of the sender and receiver. Select one: a. physical b. none of the above c. network d. data link

d. session

The ______ layer establishes, maintains, and synchronizes the interactions between communicating devices. Select one: a. network b. physical c. transport d. session Next

d. data link

The ______ layer is responsible for moving frames from one hop (node) to the next. Select one: a. physical b. none of the above c. transport d. data link

d. network

The ______ layer is responsible for the source-to-destination delivery of a packet across multiple network links. Select one: a. physical b. data link c. transport d. network

b. Physical

The _______ layer changes bits into electromagnetic signals. Select one: a. Data link b. Physical c. Transport d. None of the above

b. physical

The _______ layer coordinates the functions required to transmit a bit stream over a physical medium. Select one: a. data link b. physical c. transport d. network

b. presentation

The _______ layer ensures interoperability between communicating devices through transformation of data into a mutually agreed upon format. Select one: a. network b. presentation c. data link d. transport

b. data link

The _______ layer is responsible for delivering data units from one station to the next without errors. Select one: a. transport b. data link c. network d. physical

c. Physical

The _______ layer is the layer closest to the transmission medium. Select one: a. Data link b. Transport c. Physical d. Network

c. Transport

The _______ layer lies between the network layer and the application layer. Select one: a. None of the above b. Physical c. Transport d. Data link

c. transport

The _______ layer links the network support layers and the user support layers. Select one: a. network b. session c. transport d. data link

a. physical

The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN. Select one: a. physical b. none of the above c. port d. logical

b. transport

The ________ layer is responsible for the process-to-process delivery of the entire message. Select one: a. data link b. transport c. physical d. network

d. application

The _________ layer enables the users to access the network. Select one: a. physical b. data link c. transport d. application

a. bits

The physical layer is concerned with the movement of _______ over the physical medium. Select one: a. bits b. dialogs c. protocols d. programs

d. (1)

The physical, data link, and network layers are the ______ support layers. (1) network (2) user (3) both (1) and (2) (4) neither (1) nor (2) Select one: a. (2) b. (3) c. (4) d. (1)

b. Transport

The process-to-process delivery of the entire message is the responsibility of the _______ layer. Select one: a. Application b. Transport c. Physical d. Network

b. (1)

The session, presentation, and application layers are the ____ support layers. (1) user (2) network (3) both (1) and (2) (4) neither (1) nor (2) Select one: a. (2) b. (1) c. (3) d. (4)

a. OSI

The seven-layer _____ model provides guidelines for the development of universally compatible networking protocols. Select one: a. OSI b. IEEE c. ISO d. none of the above

d. port

The_____ address identifies a process on a host. Select one: a. specific b. IP c. physical d. port

a. transport

The_________ layer is responsible for the delivery of a message from one process to another. Select one: a. transport b. none of the above c. network d. physical

d. port

To deliver a message to the correct application program running on a host, the _______ address must be consulted. Select one: a. physical b. none of the above c. IP d. port

b. All the above

Which of the following is an application layer service? Select one: a. Mail service b. All the above c. Remote log-in d. File transfer and access

d. Standards were needed to allow any two systems to communicate

Why was the OSI model developed? Select one: a. The rate of data transfer was increasing exponentially b. Manufacturers disliked the TCP/IP protocol suite. c. None of the above d. Standards were needed to allow any two systems to communicate

a. UDP

_______ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer. Select one: a. UDP b. none of the above c. TCP d. IP

c. TCP

__________ provides full transport layer services to applications. Select one: a. ARP b. UDP c. TCP d. none of the above