DETAILED SYLLABUS
Application Layer: Domain Name System, World Wide Web and Hyper Text Transfer
Protocol, Electronic mail, File Transfer Protocol, Remote login, Network management, Data
compression, Cryptography – basic concepts.
Unit-V
1. The ____ layer is the network dialog controller.
a.
network
b.
transport
c.
session
d.
presentation
Answer:
Option(c)
2. The ____ layer establishes, maintains, and synchronizes the interaction between communicating systems.
a.
network
b.
transport
c.
session
d.
presentation
Answer:
Option(c)
3. The session layer lies between the______layer and the presentation layer.
a.
network
b.
transport
c.
data link
d.
application
Answer:
Option(b)
4. The _____ layer lies between the session layer and he application layer.
a.
network
b.
transport
c.
data link
d.
presentation
Answer:
Option(d)
5. The _____ layer uses data compression to reduce the number of bits to be transmitted.
a.
presentation
b.
network
c.
data link
d.
application
Answer:
Option(a)
6. The functionalities of the presentation layer include ____________
a.
Data compression
b.
Data encryption
c.
Data description
d.
All of the mentioned
Answer:
Option(d)
7. Encryption and decryption are functions of which layer?
a.
transport
b.
session
c.
application
d.
presentation
Answer:
Option(d)
8. Which of the following layers of the OSI reference model is concerned with the syntax of data exchanged between application entities?
a.
Presentation layer
b.
Application layer
c.
Transportation layer
d.
Session layer
Answer:
Option(a)
9.
In respect of OSI model, LANs implement
a.
lower
two layers
b.
all seven layers
c.
upper five layers
d.
None of the above
Answer:
Option(b)
10.
In OSI model, which of the following layer
transforms information from machine format into that understandable by user
a.
application
b. session
c.
presentation
d.
physical
Answer:
Option(c)
11. Which network component/s is/are involved in the Presentation layer of an OSI model?
a.
Gateway
b.
Multiplexer & Oscilloscope
c.
Amplifier & Hub
d.
All of the above
Answer:
Option(a)
12. Which OSI layer assumes responsibility for managing network connections between applications?
a.
Network layer
b.
Data link layer
c.
Application layer
d.
Session layer
Answer:
Option(d)
13. The _______ layer ensures interoperability between communicating devices through transformation of data into a mutually agreed upon format.
a.
network
b.
presentation
c.
transport
d.
data link
Answer:
Option(b)
14. In OSI model, when data is sent from device A to device B, the 5th layer to receive data at B is _________
a.
Application layer
b.
Transport layer
c.
Link layer
d.
Session layer
Answer:
Option(d)
15. Delimiting and synchronization of data exchange is provided by __________
a.
Application layer
b.
Session layer
c.
Transport layer
d.
Link layer
Answer:
Option(b)
16. Which of the following layers is an addition to OSI model when compared with TCP IP model?
a.
Application layer
b.
Presentation layer
c.
Session layer
d.
Session and Presentation layer
Answer:
Option(d)
17. In the OSI model, as a data packet moves from the lower to the upper layers, headers are a. Added
b.
Removed
c.
Rearranged
d.
Randomized
Answer:
Option(b)
18. Which of the following statements can be associated with OSI model?
a. A structured way to discuss and easier update system components
b. One layer may duplicate lower layer functionality
c. Functionality at one layer no way requires information from another layer
d. It is an application specific network model
Answer:
Option(b)
19. In OSI model, session layer is responsible for
a.
Recovery
b.
Check pointing
c.
Both a and b
d.
None of the above
Answer:
Option(c)
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