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Practice Tests
Question
1
18:00
What is the data unit at the Data Link Layer called?
Packet
Frame
Segment
Bit
Next
What is the primary responsibility of the Data Link Layer?
Path determination
Logical addressing
Error detection and correction
End-to-end delivery
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Next
Which device operates at the Network Layer?
Hub
Switch
Router
Bridge
Previous
Next
Modulation and demodulation (as in modems) are part of which OSI layer?
Transport Layer
Data Link Layer
Network Layer
Physical Layer
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Next
Which of the following is NOT a layer in the OSI model?
Transport Layer
Encryption Layer
Presentation Layer
Session Layer
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Next
Which device operates at the Data Link Layer?
Router
Repeater
Switch
Gateway
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Next
The Data Link Layer is divided into two sublayers. What are they?
MAC and LLC
IP and TCP
HTTP and FTP
SMTP and DNS
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Next
What is the data unit called at the Transport Layer?
Segment
Packet
Frame
Bit
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Next
What is the primary function of the Physical Layer in the OSI Model?
Route data between networks
Convert data to electrical signals
Provide error detection
Encrypt data before transmission
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Next
Which type of addressing is used at the Physical Layer?
IP Address
MAC Address
Port Number
No addressing
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Next
What type of routing is based on pre-defined paths in routers?
Dynamic Routing
Static Routing
Distance Vector Routing
Link State Routing
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Which device regenerates signals to extend network range at the Physical Layer?
Bridge
Repeater
Switch
Router
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Next
Which layer of OSI is concerned with voltage levels, timing, and cable types?
Presentation Layer
Session Layer
Physical Layer
Network Layer
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Next
OSI stand for in networking?
Open Source Interconnection
Open System Interconnection
Operating System Interface
Online System Integration
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Next
Which addressing scheme is used at the Network Layer?
Port numbers
MAC addresses
IP addresses
Domain names
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Next
What is the purpose of the ARP protocol in networking?
Converts MAC address to IP address
Converts domain name to IP address
Converts IP address to MAC address
Converts MAC address to hostname
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Next
What is the primary purpose of the OSI model?
To increase internet speed
To standardize network communication
To create hardware specifications
To replace TCP/IP model
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Which model is used more practically in real-world networking?
OSI Model
TCP/IP Model
Bluetooth Model
GSM Model
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Next
How many layers are there in the OSI model?
5
6
7
8
Previous
Next
What is the main data unit at the Network Layer?
Bit
Frame
Packet
Segment
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