-
web.groovymark@gmail.com
- November 24, 2024
Question 21
A topology where only the intended destination sees the data traffic.
a) Star
b) Bus
c) Ring
d) Mesh
Correct Answer: a) Star
Explanation: In star topology, only the destination device receives the data from the switch.
Question 22
An advantage of star topology in troubleshooting.
a) Easier to install
b) Adds redundancy
c) Adding/removing devices without disruption
d) Fast data transmission
Correct Answer: c) Adding/removing devices without disruption
Explanation: In star topology, devices can be added or removed without affecting others.
Question 23
All devices are interconnected in which topology?
a) Star
b) Mesh
c) Ring
d) Bus
Correct Answer: b) Mesh
Explanation: In mesh topology, each device is connected to every other device, ensuring full redundancy.
Question 24
An advantage of a mesh network.
a) Lower cost
b) Full redundancy
c) Simplified cabling
d) Easier to install
Correct Answer: b) Full redundancy
Explanation: Mesh topology provides multiple data paths, ensuring full redundancy.
Question 25
A disadvantage of the mesh network.
a) High cabling cost
b) No redundancy
c) Poor performance
d) Slow speed
Correct Answer: a) High cabling cost
Explanation: The multiple data paths increase both the cost and complexity of installation.
Question 26
The OSI reference model was developed by?
a) IEEE
b) ISO
c) IETF
d) ITU
Correct Answer: b) ISO
Explanation: The OSI (Open Systems Interconnection) model was developed by the International Organization for Standardization (ISO).
Question 27
What year was the OSI model developed?
a) 1990
b) 1984
c) 1999
d) 2005
Correct Answer: b) 1984
Explanation: The OSI model was developed in 1984 to standardize network communication.
Question 28
What layer of the OSI model provides the electrical connection to the network?
a) Network
b) Transport
c) Data link
d) Physical
Correct Answer: d) Physical
Explanation: The physical layer of the OSI model handles the electrical and physical connection to the network.
Question 29
UTP and fiber are examples of which OSI layer?
a) Data link
b) Physical
c) Network
d) Transport
Correct Answer: b) Physical
Explanation: These are physical media that operate at the physical layer of the OSI model.
Question 30
What is the second layer of the OSI model?
a) Data link
b) Network
c) Transport
d) Application
Correct Answer: a) Data link
Explanation: The data link layer is responsible for error detection and correction.
Question 31
Which OSI layer handles error recovery and flow control?
a) Data link
b) Network
c) Physical
d) Transport
Correct Answer: a) Data link
Explanation: The data link layer is responsible for error recovery, flow control, and sequencing.
Question 32
Which layer is responsible for Media Access Control (MAC)?
a) Physical
b) Data link
c) Network
d) Transpor
Correct Answer: b) Data link
Explanation: MAC addressing is defined in the data link layer.
Question 33
Ethernet 802.3 is defined in which layer?
a) Physical
b) Data link
c) Network
d) Application
Correct Answer: b) Data link
Explanation: The Ethernet 802.3 standard is part of the data link layer.
Question 34
MAC addresses are part of which OSI layer?
a) Data link
b) Network
c) Physical
d) Transport
Correct Answer: a) Data link
Explanation: MAC addresses are defined at the data link layer and are used to identify devices on a local network.
Question 35
The layer responsible for routing in the OSI model.
a) Transport
b) Network
c) Data link
d) Application
Correct Answer: b) Network
Explanation: The network layer routes packets between different networks.
Question 36
IP addresses are found in which layer of the OSI model?
a) Network
b) Transport
c) Data link
d) Physical
Correct Answer: a) Network
Explanation: IP addresses are used at the network layer for routing packets.
Question 37
The transport layer is concerned with?
a) Packet forwarding
b) Message integrity
c) Data encryption
d) Device addressing
Correct Answer: b) Message integrity
Explanation: The transport layer ensures that data is delivered error-free between source and destination.
Question 38
Which layer handles segmentation and reassembly?
a) Network
b) Data link
c) Transport
d) Application
Correct Answer: c) Transport
Explanation: The transport layer breaks data into segments for transmission and reassembles them at the destination.
Question 39
Transmission Control Protocol (TCP) operates at which OSI layer?
a) Network
b) Transport
c) Data link
d) Physical
Correct Answer: b) Transport
Explanation: TCP operates at the transport layer, ensuring reliable data transmission.
Question 40
Which OSI layer provides control for managing and terminating connections?
a) Session
b) Network
c) Transport
d) Application
Correct Answer: a) Session
Explanation: The session layer establishes, manages, and terminates connections.
