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📝 Quiz · Network Fundamentals
Cisco CCNA · Pass mark: 70%
0 / 5 answered
🎯
Answer all
5 questions
and score at least
70%
to complete this module and earn
75 points
.
1
At which OSI layer do switches operate?
A
Layer 1 – Physical
B
Layer 2 – Data Link
C
Layer 3 – Network
D
Layer 4 – Transport
2
Which protocol operates at the Transport layer and provides reliable, connection-oriented delivery?
A
IP
B
UDP
C
TCP
D
ICMP
3
Which cable type connects two devices of the SAME type, such as a switch to another switch?
A
Straight-through
B
Rollover (console)
C
Crossover
D
Single-mode fibre
4
What is the PDU (Protocol Data Unit) name at the Network layer (Layer 3)?
A
Bit
B
Frame
C
Packet
D
Segment
5
Which network device separates broadcast domains?
A
Hub
B
Bridge
C
Switch
D
Router
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