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Question
1
18:00
Which Transport Layer protocol is best for real-time applications like video streaming?
TCP
FTP
UDP
SMTP
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Which file format conversions are typically handled at the Presentation Layer?
MP3 to WAV
.zip to .rar
JPEG to PNG
All of the above
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The Application Layer provides an interface between:
User and the network
Router and switch
MAC and IP
Server and database
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Which layer ensures two devices can communicate in either half-duplex or full-duplex mode?
Application Layer
Presentation Layer
Transport Layer
Session Layer
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What is the main function of the Presentation Layer in the OSI model?
Routing and switching
Data encryption, compression, and translation
Physical signal transmission
Error control
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What is the role of the HTTP protocol at the Application Layer?
It secures email communication
It routes packets between routers
It delivers web content from server to client
It assigns IP addresses
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Which layer is responsible for services like file transfer, email, and network management?
Presentation Layer
Session Layer
Application Layer
Transport Layer
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The Presentation Layer acts as a:
Data transmitter
Data organizer between Application and Session Layer
Error handler for lower layers
MAC address resolver
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What is the full form of BIOS in computers?
Basic Input Output Software
Binary Input Output System
Basic Integrated Operating System
Basic Input Output System
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Data encryption before transmission and decryption after reception occurs at which OSI layer?
Session Layer
Network Layer
Transport Layer
Presentation Layer
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Which two protocols operate at the Transport Layer?
IP and ICMP
TCP and UDP
ARP and RARP
HTTP and HTTPS
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Why is the Presentation Layer sometimes called the "translator" of the OSI model?
It translates between English and binary
It converts signals into light pulses
It ensures proper format, encoding, and readability of data
It determines IP routes
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Which of the following protocols is associated with the Session Layer?
TCP
DNS
NetBIOS
IP
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A "checkpoint" or synchronization point in a session is used to:
Start a firewall
Save the state of communication
Format data
Configure routing tables
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What is a key feature of UDP in the Transport Layer?
Reliable delivery
Acknowledgments
Low overhead and no connection
Sequence numbers
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What is the function of TCP in the Transport Layer?
Provides connectionless communication
Provides unreliable transmission
Provides reliable, connection-oriented communication
Converts IP to MAC address
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Compression of data to reduce transmission size is performed at the:
Application Layer
Network Layer
Presentation Layer
Transport Layer
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What is the main role of the Session Layer in the OSI model?
Packet routing
Flow control
Establish, manage, and terminate sessions
Error detection
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What does the Transport Layer do if a segment is lost during transmission (in TCP)?
Ignores it
Replaces it with random data
Requests retransmission
Forwards to the application layer
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DNS (Domain Name System) operates at which OSI layer?
Network Layer
Data Link Layer
Application Layer
Transport Layer
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