TOPIC 3: OSI Quiz
Removed
In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______. a. rearranged b. added c. removed d. modified
Presentation
In the OSI model, encryption and decryption are functions of the ________ layer. a. transport b. application c. session d. presentation
process-to-process message delivery
In the OSI model, what is the main function of the transport layer? a. process-to-process message delivery b. synchronization c. updating and maintenance of routing tables d. node-to-node delivery
Session
In 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. a. presentation b. session c. physical d. transport
transport
The_________ layer is responsible for the delivery of a message from one process to another. Select one: a. network b. physical c. transport d. none of the choices
seven
The OSI model consists of _______ layers.
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. none of the choices b. physical c. data link d. network
Session
The ______ layer establishes, maintains, and synchronizes the interactions between communicating devices. Select one: a. network b. session c. transport d. physical
data link
The ______ layer is responsible for moving frames from one hop (node) to the next. Select one: a. none of the choices b. transport c. data link d. physical
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. network d. transport
Physical
The _______ layer changes bits into electromagnetic signals. Select one: a. Transport b. None of the choices c. Physical d. Data link
Physical
The _______ layer coordinates the functions required to transmit a bit stream over a physical medium. Select one: a. network b. transport c. physical d. data link
presentation
The _______ layer ensures interoperability between communicating devices through transformation of data into a mutually agreed upon format. Select one: a. data link b. transport c. presentation d. network
data link
The _______ layer is responsible for delivering data units from one station to the next without errors. Select one: a. network b. physical c. data link d. transport
Physical
The _______ layer is the layer closest to the transmission medium. Select one: a. Physical b. Data link c. Transport d. Network
Transport
The _______ layer lies between the network layer and the application layer. Select one: a. Physical b. Data link c. Transport d. None of the choices
transport
The _______ layer links the network support layers and the user support layers. Select one: a. session b. transport c. network d. data link
OSI
The _______ model shows how the network functions of a computer ought to be organized. Select one: a. ISO b. CCITT c. OSI d. ANSI
Transport
The ________ layer is responsible for the process-to-process delivery of the entire message. Select one: a. transport b. data link c. network d. physical
Application
The _________ layer enables the users to access the network. Select one: a. transport b. application c. physical d. data link
bits
The physical layer is concerned with the movement of _______ over the physical medium. a. bits b. protocols c. programs d. dialogs
network
The physical, data link, and network layers are the ______ support layers. a. user b. network c. neither user nor network d. both user and network
Transport Layer
Which OSI layer is responsible for the reliability of the data sent between hosts? Select one: a. Presentation layer b. Transport layer c. Application layer d. Network layer
Layer 2
Which layer of the OSI model is responsible for converting the packet to an electrical signal that will be placed on the wire? Select one: a. Layer 1 b. Layer 3 c. Layer 2 d. Layer 4
1. Compression 2. Converting the message to a format that is understood by the destination 3. Encryption
Which of the following functions can be performed at layer 6 of the OSI model? (Select all that apply.) Select one or more: a. Routing of the message b. Compression c. Converting the message to a format that is understood by the destination d. Encryption
Data transmission
Which of the following is NOT a layer in the OSI model? Select one: a. Physical b. Data transmission c. Transport d. Network
TCP
Which of the following protocols are transport-layer protocols? (Choose two.) Select one or more: a. IPX b. SPX c. IP d. TCP
192.168.3.200
Which of the following represents a layer-3 address? a. 192.168.3.200 b. 00-02-3F-6B-25-13 c. COMPUTER1 d. www.myvirtuallearning.tk
SMTP
Which of the following represents an application-layer protocol? Select one: a. SMTP b. IP c. TCP d. SPX
Standards were needed to allow any two systems to communicate
Why was the OSI model developed? Select one: a. Manufacturers disliked the TCP/IP protocol suite. b. The rate of data transfer was increasing exponentially c. Standards were needed to allow any two systems to communicate d. None of the choices