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Practice Tests
Question
1
18:00
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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What does CD-ROM stand for?
Compact Disk - Read Only Memory
Computer Disk - Read Output Memory
Central Data - Read Only Module
Control Device - Random Output Memory
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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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Which mechanism does the Transport Layer use to prevent data overflow at the receiver’s end?
Routing
Buffering
Flow control
CRC
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Which protocol is used to send emails?
FTP
SMTP
DNS
SSH
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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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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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Which of the following protocols operates at the Application Layer?
IP
TCP
FTP
ARP
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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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What does API stand for in programming?
Application Programming Interface
Automated Programming Integration
Advanced Protocol Interaction
Applied Program Interface
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Which of the following ensures that data segments are delivered in order?
UDP
TCP
IP
ARP
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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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The Application Layer provides an interface between:
User and the network
Router and switch
MAC and IP
Server and database
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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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What is the primary function of the Application Layer in the OSI model?
File compression
Initiating data transmission from user-facing applications
Data routing and switching
Managing TCP sessions
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Which of the following protocols/functions is associated with the Presentation Layer?
HTTP
SSL/TLS
IP
ARP
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Which of the following is NOT an Application Layer protocol?
SMTP
HTTP
DHCP
TCP
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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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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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What does PDF stand for in computer?
Portable Data File
Printed Document Format
Page Data Format
Portable Document Format
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