ITN 100 FINAL COMPREHENSIVE GUIDE
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
>> Today, the most expensive part of the network is the hardware.
Answer: True
>> Today, many organizations design networks using the building-block
approach.
Answer: True
>> The primary goal of the needs analysis step in network design is to develop a
physical network design.
Answer: False
>> Simulation is a tool that can be used in designing networks.
Answer: True
>> Cost assessment is the step in the network design in which many complex
factors related to costs are documented.
Answer: True
>> When obtaining the support of senior management for a proposed network, it
is important to use as much technical network jargon as possible.
Answer: False
>> The campus backbone is usually faster than the backbones used inside
buildings.
,Answer: True
>> In the technology design stage of network design,
Answer: the decisions for fundamental technology/protocols and circuit
capacity are interrelated
>> ___________ refers to the amount of data transmitted on a circuit.
Answer: Circuit loading
>> STP cable is least costly type of cable used in today's networks and is the
most commonly used cable type in connecting computers to switches.
Answer: False
>> Discuss in detail how you would improve a LAN network's performance, and
what you would look for.
Answer: Checking the physical cabling, ensuring switches and routers aren't
overloaded, and optimizing the network's topology.
>> Describe war-chalking, war-driving, and war-walking.
Answer: War-chalking uses symbols on sidewalks to show nearby Wi-Fi
networks. War-driving is scanning for wireless networks while driving,
usually for mapping or security testing. War-walking is the same concept,
but done on foot.
>> Compare a switched Ethernet to a wireless Ethernet. What are four essential
differences between these two approaches to building a LAN? Give three reasons
why a switched Ethernet is preferable to wireless. Three reasons why wireless
might be preferred to switched?
Answer: A switched Ethernet uses physical cable to provide dedicated, high
speed, and stable connections. Four essential differences between them:
Medium of transmission, bandwidth and speed, reliability and interference,
and security. Three reasons why wireless is preferred: Mobility and
, flexibility, lower installation effort, and scalability and convenience.
>> Select three different types of IEEE 802.11 and describe when it might be
best to use each one.
802.11ac works best on the 5GHz band and delivers faster speeds ideal for
activities like HD or 4K streaming.
802.11ax works best for crowded environments with many connected devices.
Answer: 802.11n works best on both the 2.4 GHz and 5GHz bands.
>> The Ethernet standard was first developed by the IEEE.
Answer: False
>> Physical topology refers to the geometric layout of the network and describes
how the computers are interconnected.
Answer: True
>> A collision on a bus circuit means that two computers on that circuit have
transmitted at the same time.
Answer: True
>> The three latest versions of Ethernet run at speeds of 1Gbps, 10Gbps, and
50Gbps.
Answer: False
>> 1000Base-LX is a version of 1000Base-T than runs on four pairs of CAT 5
cable.
Answer: False
>> A switch always broadcasts all the packets it receives to all the computers that
are connected to the switch.
Answer: False
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
>> Today, the most expensive part of the network is the hardware.
Answer: True
>> Today, many organizations design networks using the building-block
approach.
Answer: True
>> The primary goal of the needs analysis step in network design is to develop a
physical network design.
Answer: False
>> Simulation is a tool that can be used in designing networks.
Answer: True
>> Cost assessment is the step in the network design in which many complex
factors related to costs are documented.
Answer: True
>> When obtaining the support of senior management for a proposed network, it
is important to use as much technical network jargon as possible.
Answer: False
>> The campus backbone is usually faster than the backbones used inside
buildings.
,Answer: True
>> In the technology design stage of network design,
Answer: the decisions for fundamental technology/protocols and circuit
capacity are interrelated
>> ___________ refers to the amount of data transmitted on a circuit.
Answer: Circuit loading
>> STP cable is least costly type of cable used in today's networks and is the
most commonly used cable type in connecting computers to switches.
Answer: False
>> Discuss in detail how you would improve a LAN network's performance, and
what you would look for.
Answer: Checking the physical cabling, ensuring switches and routers aren't
overloaded, and optimizing the network's topology.
>> Describe war-chalking, war-driving, and war-walking.
Answer: War-chalking uses symbols on sidewalks to show nearby Wi-Fi
networks. War-driving is scanning for wireless networks while driving,
usually for mapping or security testing. War-walking is the same concept,
but done on foot.
>> Compare a switched Ethernet to a wireless Ethernet. What are four essential
differences between these two approaches to building a LAN? Give three reasons
why a switched Ethernet is preferable to wireless. Three reasons why wireless
might be preferred to switched?
Answer: A switched Ethernet uses physical cable to provide dedicated, high
speed, and stable connections. Four essential differences between them:
Medium of transmission, bandwidth and speed, reliability and interference,
and security. Three reasons why wireless is preferred: Mobility and
, flexibility, lower installation effort, and scalability and convenience.
>> Select three different types of IEEE 802.11 and describe when it might be
best to use each one.
802.11ac works best on the 5GHz band and delivers faster speeds ideal for
activities like HD or 4K streaming.
802.11ax works best for crowded environments with many connected devices.
Answer: 802.11n works best on both the 2.4 GHz and 5GHz bands.
>> The Ethernet standard was first developed by the IEEE.
Answer: False
>> Physical topology refers to the geometric layout of the network and describes
how the computers are interconnected.
Answer: True
>> A collision on a bus circuit means that two computers on that circuit have
transmitted at the same time.
Answer: True
>> The three latest versions of Ethernet run at speeds of 1Gbps, 10Gbps, and
50Gbps.
Answer: False
>> 1000Base-LX is a version of 1000Base-T than runs on four pairs of CAT 5
cable.
Answer: False
>> A switch always broadcasts all the packets it receives to all the computers that
are connected to the switch.
Answer: False
