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WorksheetsOSI Model Challenge
Total questions: 15
Worksheet time: 11mins
Why do you think OSI 7 layers is important?
Because it can be used in real world.
Because it has 7 layers.
Because it can be used as a reference model
Because it is very popular
As we know, layer 1 is physical layer and how data is transfered in this layer?
Moreover, give me some layer 1 devices.
As packets
routers , switches
As datagram
switches , hubs
As bits
switches , hubs
As bits
hubs , Wireless Access Points
How layer 7 is called in OSI model?
Give some functions of this model.
Transport Layer
. switching services
. session services
Application Layer
. logical addressing
. routing services
Presentation Layer
. physical addressing
. session services
Application Layer
. application services
. Encapsulation and Decapsulation
Which type of network device operates at layer 1 of the OSI model and requires connected devices to operate at half-duplex using CSMA/CD?
Switch
Router
Hub
Bridge
Which of the following applies to data as it travels from Layer 1 to Layer 7 of the OSI model?
Tagging
Encapsulation
and
Decapsulation
Encapsulation
Decapsulation
Which of the following are the functions of the network layer of the OSI model?
Encryption and Compression
Error detection and correction
Delivery of packet from source to destination
All of the above
_______ is also termed as a logical address.
Port Address
IP Address
MAC Address
None of these
15. Which of the following statements correctly describe the process of data encapsulation in the OSI model? (Choose any two)
The presentation layer translates the data into a common format and performs encryption and compression.
The physical layer adds the physical address to the data frames and transmits them through the communication media.
The transport layer splits the data into smaller chunks called segments and adds TCP or UDP header before passing it to the lower layer.
All of the above statement is correct.
Answer
In University of Computer Studies( Thaton ), there are many lab rooms. In this rooms, at least 40 computer are connected as LAN.
So what do you think what devices are used in this room to create a LAN.
Hubs , Switches
Bridges , Switches
Switches
Routers , Hubs
According to the OSI model, at which of the following layers is data encapsulated into a frame?
Layer 1
Layer 2
Layer 3
Layer 4
Which of the following protocols runs at the uppermost layer of the OSI model?
TCP
UDP
Telnet
SMTP
Which of the following describes UDP?
Connection-oriented
Best-effort delivery
Runs at the Network layer of the OSI model
Allows for error detection
Identify the total versions of IP
1
2
3
4
Which layer of the OSI model is responsible for providing a reliable connection between two applications?
Physical layer
Transport layer
Network layer
Data link layer
Which of the following is the main function of the data link layer?
To provide error detection and correction
To provide flow control
To provide addressing
To provide access to the physical medium
