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WorksheetsNETWORKING
Total questions: 61
Worksheet time: 36mins
What is the typical range of NFC communication?
a) 10 meters
30 meters
1-10 centimeters
100 meters
Zigbee is most commonly used in which type of applications?
Video streaming
Smart home and industrial automation
High-speed internet access
Long-range communication
Which wireless technology is commonly used for personal area
networks and allows devices like smartphones and headsets to
connect?
NFC
RFID
Bluetooth
IR
Which wireless technology is commonly used for contactless
payments and access control?
RFID
Zigbee
NFC
Bluetooth
Which technology uses low-power, low-data-rate wireless
communication and is often used in fitness and health monitoring
devices?
Zigbee
Z-Wave
ANT+
NFC
Infrared (IR) communication is typically used in which of the following
applications?
Remote controls for TVs and other appliances
Long-range internet communication
Contactless payments
Wireless charging
Which of the following technologies uses light waves to transmit data
and requires a direct line of sight between devices?
NFC
RFID
Infrared (IR)
Zigbee
A band used by a wireless device is defined by its overall frequency range.
(a)
The air provides no fixed path for signals to follow, so signals travel without
guidance
(a)
What is attenuation in signal propagation?
a) Increase in signal strength over distance
b) Decrease in signal strength over distance
c) Change in signal direction
d) Mixing of different signals
What is the impact of attenuation on a signal?
a) The signal is amplified.
c) The signal strength decreases.
d) The signal is reflected back.
b) The signal speed increases.
Fading in wireless communication is often caused by:
a) Atmospheric conditions
d) Strong signal reception
b) Constant signal power
c) Perfectly straight signal paths
Which phenomenon explains why a radio signal might be weaker at
some locations despite no physical obstacles?
d) Scattering
c) Fading
b) Diffraction
• a) Reflection
Which of the following is a primary cause of signal interference?
d) Presence of multiple signals in the same frequency band
b) Strong signal strength
a) High-frequency signal
c) Direct line of sight between transmitter and receiver
When a signal bounces off a surface and changes direction, this is
called:
d) Attenuation
b) Diffraction
a) Reflection
c) Refraction
What does the “n” in 802.11n refer to in WLAN standards?
D) Narrowband width
B) New frequency
A) Network speed
C) Number of antennas (MIMO)
What is the maximum theoretical speed of the 802.11ac standard?
11 Mbps
1.3 Gbps
54 Mbps
600 Mbps
Which of the following WLAN standards operates only on the 5 GHz
frequency?
802.11a
802.11b
802.11g
802.11n
Which WLAN standard introduced MU-MIMO technology for supporting
multiple simultaneous users?
A) 802.11b
B) 802.11ac
C) 802.11n
D) 802.11g
802.11g
802.11ac
802.11b
802.11n
Which WLAN standard is also referred to as Wi-Fi 6?
802.11ac
802.11ax
802.11n
802.11g
SOHO network?
(a)
Which device allows you to control your home's heating and cooling
systems remotely via a smartphone app?
Smart light bulb
Smart refrigerator
Smart thermostat
Smart lock
Which device provides real-time video monitoring of your home and
can send alerts to your phone when it detects motion?
a) Smart thermostat
b) Smart doorbell
c) Smart security camera
d) Smart lock
Smart lock
Smart doorbell
Smart security camera
Smart thermostat
To minimize Wi-Fi signal interference, where should an Access Point
(AP) ideally be placed?
In a basement
Close to other electronic devices like microwaves
Near large metal objects
Away from walls and large obstacles
Which factor should be considered to ensure that an Access Point (AP)
provides reliable performance across multiple floors of a building?
Positioning it directly next to a window
Mounting it in a high, central location to ensure even coverage
Installing it in a closet for better protection
Placing it on the highest floor to cover lower floors
When offboarding a Wi-Fi client, which action is crucial to ensure
network security?
Removing the device from the network’s list of authorized devices
Updating the Wi-Fi password of the router
Reducing the Wi-Fi signal strength for each user
Changing the router’s location in a basement
What is the primary purpose of onboarding Wi-Fi clients in a network?
To configure security settings on devices connected in the network
To monitor network usage
To manage and improve network bandwidth
To add new devices to the network with proper access
What is the purpose of geofencing in a Wi-Fi network?
To enhance and improve the Wi-Fi signal strength used by the guest
To control the bandwidth usage of connected devices
To limit network access based on the physical location of the device
To provide a guest network with limited access
Which feature provides a separate network for visitors to use without
accessing the main network's resources?
Wireless client isolation
Captive portal
Guest network
IoT access considerations
What does wireless client isolation do in a network?
a) It prevents connected devices from communicating with each other
b) It restricts access to external networks and devices
c) It allows guests to connect without authentication and encryption
d) It monitors the location of devices across the network
It prevents connected devices from communicating with each other
It allows guests to connect without authentication and encryption
It monitors the location of devices across the network
It restricts access to external networks and devices
Which security measure requires users to agree to terms or log in
before accessing the internet on a public network?
a) Geofencing
b) Captive portal
c) IoT access considerations
d) AP and antenna placement
IoT access considerations
Captive portal
Geofencing
AP and antenna placement
When considering IoT devices in a network, what is a key security
measure?
Disabling all IoT devices during peak hours to improve signal strength and
bandwidth allocation.
Placing IoT devices on a separate network from main business systems
Ensuring IoT devices have the highest signal strength to maximize their
purpose
Using the same network for all devices to simplify management
When setting up Wi-Fi in a multi-story house, what is the best
placement for a router to ensure strong coverage across all floors?
Place the router near a window for strong coverage
Place the router in a central location on the middle floor
Place the router in the basement to cover all floors of the house
Place the router in a closet to increase broadcasting range
The geographical area that an antenna can reach is known as its
(a)
(a) refers to the way in which a wave travels from one point to another.
As a wave travels into and through a different transmission medium, such as when traveling through glass or other solids, the wave’s direction, speed, and wavelength are altered, or refracted.
distorted
(a)
The wave encounters an obstacle and reflects, or bounces back, toward its source.
(a)
• When a wireless signal encounters an object that has small surface dimensions compared with the signal’s wavelength, it’s diffused or scattered in multiple directions.
(a)
A wireless signal is diffracted, or split into secondary waves, when it encounters an obstruction.
(a)
is a device in a network that connects multiple computers or devices together. Its job is to direct data (like emails, web pages, or files) to the right device
(a)
You just plug it in, and it works—no need to configure anything. It doesn’t have many features or customization options.
unmanaged switch
Managed Switches
Simple and Plug-and-Play
ore Advanc
is useful in complex networks where you need to control traffic, prioritize certain types of data, or monitor network performance.
managed switch
business
give vide
smooth
Which type of switch can interpret IP addresses and route traffic between different networks?
Layer 3
Layer 2
Layer 4
which is related to IP addresses (the addresses devices use to communicate over different networks). This type of switch can route traffic between different networks, just like a router.
layer 4
Layer 3
Layer 2
, which involves transport protocols like TCP (Transmission Control Protocol). This switch can make decisions based on specific types of traffic, like prioritizing certain applications (e.g., video streaming or gaming).
Layer 2
Layer 3
Layer 4
In what scenario would a managed switch be more beneficial than an unmanaged switch?
a) In a small home network with minimal devices
In a large business network where traffic needs to be prioritized
In a basic local network with no need for advanced features
In a situation where devices are rarely added or removed
• What is the main purpose of disabling unused switch ports?
To reduce data traffic allowing good networking management and maintenance.
To prevent unauthorized devices from connecting
To increase network speed thus improve networking efficiency
a) To save electricity used in computer networking
How does Cisco's switchport port-security feature help secure a network?
By monitoring traffic logs on the switch and improve traffic
By allowing only approved MAC addresses to connect to a port
By speeding up the data flow through the port
By securing transmission thru encrypting data sent through the port
What happens when MAC flooding occurs?
The switch is overwhelmed with fake MAC addresses, potentially allowing unauthorized access
The switch disables all ports and prevent unauthorized devices from connecting
The switch becomes faster due to reduced congestion
The network stops using MAC addresses allowing secured transmission of data within the network
What is the name of the strategy that involves using multiple layers of security to protect a network?
Layered access control
Perimeter defense
Multi-layer encryption
Defense in depth
What is a MAC address?
A command for securing a switch port
A unique identifier for a device on a network
A password for accessing the network
A type of IP address used to connect on a network
What is the primary purpose of a load balancer in a network?
To block unauthorized users
To speed up internet connections
To manage power usage on switches
To evenly distribute traffic between devices
Which layer in a three-tier architecture directly connects devices like computers and printers to the network?
Distribution layer
Core layer
Access layer
Transport layer
In networking, what is the access layer also known as?
The application layer
The data layer
The edge layer
The core layer
In the new spine-and-leaf architecture, what two layers are collapsed into one?
Core and access layers
Access and distribution layers
Leaf and access layers
Distribution and core layers
In spine-and-leaf architecture, which switches connect directly to devices like servers and computers?
Leaf switches
Spine switches
Distribution switches
In spine-and-leaf architecture, how do spine switches connect with each other?
They do not connect to each other
They connect in a ring topology
They only connect to core routers
They connect directly to each other
Which of the following layers in SDN is responsible for physically sending and receiving network data?
Management plane
Infrastructure plane (Data plane)
Application plane
Control plane
What role does the control plane play in SDN?
It monitors network performance
It handles decision-making processes for network traffic flow
It stores data from applications
It directly connects to user devices
Which plane in SDN communicates with network applications using APIs? a) Control plane b) Infrastructure plane c) Application plane d) Data plane
Control plane
Application plane
Which type of switch Moves data between devices in the same network using MAC addresses
layer 4
Layer 3
Layer 2
