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Practice Tests
Question
1
18:00
What is the abbreviation of DNS in computer networking?
Domain Name System
Digital Network Server
Data Node Structure
Domain Network Service
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What does API stand for in programming?
Application Programming Interface
Automated Programming Integration
Advanced Protocol Interaction
Applied Program Interface
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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 ensures that data segments are delivered in order?
UDP
TCP
IP
ARP
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What is the data unit called at the Transport Layer?
Segment
Packet
Frame
Bit
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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 does PDF stand for in computer?
Portable Data File
Printed Document Format
Page Data Format
Portable Document Format
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Which of the following is NOT an Application Layer protocol?
SMTP
HTTP
DHCP
TCP
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Which of the following is NOT a function of the Session Layer?
Session termination
Dialog control
Address resolution
Synchronization
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Which of the following tasks is performed at the Application Layer?
Frame creation
IP addressing
User authentication
Signal modulation
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What happens if a session is interrupted?
It is ignored by the session layer
The session layer re-establishes or resumes the session
The data is discarded
Data is re-routed
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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 is used at the Transport Layer to uniquely identify applications on a host?
IP Address
MAC Address
Port Number
DNS Name
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What does GUI mean in computing?
Graphical User Interface
Global Utility Interface
General User Interaction
Graphic Uniform Integration
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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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What is the full form of SSD in computer storage?
Solid State Drive
Secure Storage Device
Smart Storage Disk
Solid Software Disk
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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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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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DNS (Domain Name System) operates at which OSI layer?
Network Layer
Data Link Layer
Application Layer
Transport Layer
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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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