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WorksheetsCS7 Unit 3 Networks Review
Total questions: 92
Worksheet time: 2hrs 32mins
Name
Class
Date
1.
Which device connects a computer to a network?
a)
Keyboard
b)
Flash drive
c)
Mouse
d)
Network Interface Card (NIC)
2.
What is the main purpose of a router?
a)
Store data for the network
b)
Display webpages
c)
Encrypt wireless signals
d)
Direct data between networks
3.
Which device provides access to the internet from your home network?
a)
Server
b)
Switch
c)
NIC
d)
Modem
4.
Which hardware component provides a wireless signal?
a)
Firewall
b)
Switch
c)
Modem
d)
Wireless Access Point (WAP)
5.
What is the function of a firewall?
a)
Store files securely
b)
Speed up the internet connection
c)
Connect multiple devices wirelessly
d)
Protect a network from unauthorized access
6.
What term describes a computer that provides resources to other computers?
a)
Client
b)
Modem
c)
Router
d)
Server
7.
Which of the following is a client device?
a)
Router
b)
Server
c)
Switch
d)
Laptop
8.
Which hardware device typically connects local devices within a LAN?
a)
Modem
b)
Server
c)
Firewall
d)
Switch
9.
In a typical home network, which device assigns IP addresses?
a)
Router
b)
Switch
c)
Firewall
d)
Server
10.
What device filters data packets based on security rules?
a)
Modem
b)
Router
c)
WAP
d)
Firewall
11.
Which of these best describes the role of a NIC?
a)
Connects multiple networks
b)
Translates data into wireless signals
c)
Filters unwanted traffic
d)
Allows a device to communicate on a network
12.
What is the correct order for sending data through a home network to the internet?
a)
Router → Client → Modem → Internet
b)
Modem → Router → Client → Internet
c)
Client → Modem → Router → Internet
d)
Client → Router → Modem → Internet
13.
What do we call small pieces of data that travel across networks?
a)
Frames
b)
Files
c)
Requests
d)
Packets
14.
Why are large files divided into smaller packets?
a)
To save storage space
b)
To hide data from routers
c)
To improve Wi-Fi speed
d)
To make transmission faster and more reliable
15.
When packets are sent across the internet they may:
a)
Take alternative paths
b)
Always travel in the same order
c)
Be deleted after each hop
d)
Travel in a straight line
16.
What happens if a packet is lost during transmission?
a)
The entire file fails
b)
The modem shuts down
c)
The server restarts
d)
Only that packet needs to be resent
17.
The term "bandwidth" refers to:
a)
Internet speed limit
b)
The number of connected devices
c)
The type of modem used
d)
Amount of data that can travel per second
18.
The main purpose of a router in data transfer is to:
a)
Block all data
b)
Store data temporarily
c)
Change data into sound waves
d)
Direct packets to their correct destination
19.
What is the function of a modem during data transmission?
a)
Encrypts the packets
b)
Creates IP addresses
c)
Organizes packets by order
d)
Converts digital signals to a form usable by your internet provider
20.
Why might packets arrive at their destination at different times?
a)
The router stopped working
b)
They contain too much data
c)
The user’s computer is slow
d)
They may take different routes across the network
21.
Which network connects devices in a single home or building?
a)
WAN
b)
MAN
c)
PAN
d)
LAN
22.
Which network type covers an entire city?
a)
LAN
b)
WAN
c)
PAN
d)
MAN
23.
What is the SMALLEST type of network often connecting personal devices?
a)
PAN
b)
LAN
c)
WAN
d)
MAN
24.
A network connecting offices in multiple countries is most likely a:
a)
LAN
b)
MAN
c)
PAN
d)
WAN
25.
Which of the following is an example of a PAN?
a)
A school computer lab network
b)
A citywide Wi-Fi system
c)
The Internet
d)
A Bluetooth connection between a phone and smartwatch
26.
A company connects three local offices in one city. This is a:
a)
WAN
b)
PAN
c)
LAN
d)
MAN
27.
A school building’s internal network is an example of:
a)
WAN
b)
PAN
c)
Internet
d)
LAN
28.
Which network type would use a satellite link between countries?
a)
LAN
b)
WAN
c)
MAN
d)
PAN
29.
Which type of network typically provides the fastest local connections?
a)
LAN
b)
MAN
c)
WAN
d)
PAN
30.
Which of the following is true of a LAN?
a)
Covers large geographic areas
b)
Connects devices in different buildings
c)
local connections in a limited area
d)
Requires satellites to operate
31.
In which topology are all devices connected to a central hub?
a)
Star
b)
Ring
c)
Mesh
d)
Bus
32.
In a bus topology data travels:
a)
Through a single main cable
b)
Through the hub
c)
In a circular loop
d)
Randomly
33.
In a ring topology data travels:
a)
Moves in one direction
b)
Both directions at once
c)
In straight lines only
d)
Through a central router
34.
Which topology provides the highest fault tolerance?
a)
Star
b)
Ring
c)
Bus
d)
Mesh
35.
Which topology fails completely if the main cable breaks?
a)
Star
b)
Mesh
c)
Ring
d)
Bus
36.
A hybrid topology combines:
a)
Star and mesh only
b)
Ring and bus only
c)
Wired and wireless networks
d)
Two or more different topologies
37.
Which statement best describes a hybrid topology?
a)
It connects only wireless devices.
b)
It is slower than a bus network.
c)
It cannot include a star or mesh structure.
d)
It combines two or more topologies to meet specific needs.
38.
What is one advantage of a star topology?
a)
Easy to add or remove devices
b)
Uses less cable than a bus
c)
Data travels faster than light
d)
No central device required
39.
What is a disadvantage of a star topology?
a)
If the hub fails
b)
the network stops
c)
Data collisions happen constantly
d)
It uses wireless signals only
40.
In a mesh topology if one cable fails data can still travel using:
a)
a different topology
b)
other routes
c)
Routers only
d)
The main line
41.
What is the purpose of an IP address?
a)
Encrypt data
b)
Store user passwords
c)
Connect to Wi-Fi
d)
Identify a device on a network
42.
How many bits are in an IPv4 address?
a)
64
b)
128
c)
256
d)
32
43.
How many bits are in an IPv6 address?
a)
32
b)
64
c)
256
d)
128
44.
Which of the following is an example of an IPv4 address?
a)
2001:0db8:85a3:0000
b)
ABCD:1234::5678
c)
999.999.999.999
d)
192.168.1.1
45.
Which of the following is an example of an IPv6 address?
a)
172.16.0.1
b)
192.168.0.5
c)
10.0.0.1
d)
2001:0db8:85a3:0000:0000:8a2e:0370:7334
46.
Why was IPv6 created?
a)
To replace routers
b)
To shorten addresses
c)
To increase speed
d)
To provide more possible addresses
47.
Which of these address versions allows for billions more unique devices on the internet?
a)
IPv4
b)
DNS
c)
MAC
d)
IPv6
48.
How many unique addresses are available with IPv6 compared to IPv4?
a)
Fewer than IPv4
b)
About the same
c)
Slightly fewer
d)
Far more
49.
Which statement best summarizes the transition from IPv4 to IPv6?
a)
IPv4 is faster
b)
so IPv6 will be discontinued.
c)
IPv6 only works on new modems.
d)
IPv4 will replace IPv6 in the future.
50.
What does DNS stand for?
a)
Data Network Service
b)
Digital Number System
c)
Device Name Setup
d)
Domain Name System
51.
What is the main function of DNS?
a)
Encrypt data on websites
b)
Store webpage content
c)
Create firewalls
d)
Translate domain names into IP addresses
52.
When you type "www.google.com"
a)
DNS helps your computer:
b)
Find the fastest internet speed
c)
Load the page from cache only
d)
Change your IP address
53.
Why do we use domain names instead of IP addresses?
a)
They are faster to type
b)
They are more secure
c)
They use fewer bits
d)
They are easier for humans to remember
54.
The DNS acts like what in real life?
a)
A firewall that blocks hackers
b)
A map that shows directions
c)
A switch that connects devices
d)
A phone book that matches names to numbers
55.
If DNS fails
a)
what happens when you try to visit a website?
b)
The router crashes
c)
The computer slows down
d)
The IP address changes
56.
What kind of servers store DNS records?
a)
Web servers
b)
File servers
c)
Routers
d)
DNS servers
57.
Which step happens before DNS can translate a name?
a)
The server returns an IP address
b)
The router opens a firewall port
c)
The modem encrypts data
d)
The client sends a DNS query
58.
A student can’t connect to Wi-Fi
a)
but the cable works fine. Which device may be the issue?
b)
Router
c)
Firewall
d)
Server
59.
If all devices on a network lose internet access but the LAN still works
a)
which device failed?
b)
Router
c)
Switch
d)
Server
60.
A user can reach local printers but not websites. What is most likely the problem?
a)
Printer driver
b)
Wi-Fi password
c)
Topology failure
d)
Internet connection or modem issue
61.
A network cable is unplugged from a computer. Which hardware no longer works properly?
a)
Modem
b)
Router
c)
Switch
d)
NIC
62.
Students can connect to the Wi-Fi but can’t access the internet. What should you check?
a)
DNS names
b)
Flowchart steps
c)
Firewall rules
d)
Router and modem connection
63.
An IP conflict occurs when:
a)
The DNS fails
b)
The router restarts
c)
The topology changes
d)
Two devices share the same IP address
64.
A wireless signal is weak in one corner of the room. Best solution?
a)
Replace the router
b)
Restart all computers
c)
Change IP addresses
d)
Add or move a wireless access point
65.
What might happen if a firewall blocks too much traffic?
a)
The internet speeds up
b)
The DNS stops working
c)
Routers shut down
d)
Users can’t access needed sites
66.
Which component would you replace first if no wired computers can connect?
a)
Modem
b)
DNS server
c)
Firewall
d)
Switch
67.
If a website loads slowly but others are fine what is the most likely cause?
a)
Slow web server
b)
Router failure
c)
IP address conflict
d)
Topology problem
68.
A computer connects to the router but not the modem. The problem is likely:
a)
DNS
b)
Client NIC
c)
Server
d)
Router-to-modem connection
69.
A teacher unplugs the router and then the network fails completely. This shows the router is acting as the:
a)
Firewall
b)
Client
c)
Wireless Access Point
d)
Central connection point
70.
What should you check first if your computer suddenly loses internet connection?
a)
Restart the browser
b)
Replace the modem
c)
Ask your teacher
d)
Check the cable or Wi-Fi connection
71.
If all students lose Wi-Fi but wired computers still work which component is probably down?
a)
Wireless Access Point
b)
Router
c)
Modem
d)
Switch
72.
Which network device protects against hackers or unwanted traffic?
a)
Router
b)
Server
c)
Modem
d)
Firewall
73.
Which skill helps programmers think through problems before writing any code?
a)
Typing speed
b)
Website design
c)
Debugging tools
d)
Computational thinking
74.
What is decomposition?
a)
Creating random solutions
b)
Comparing patterns in data
c)
Repeating the same algorithm
d)
Breaking a large problem into smaller parts
75.
Pattern recognition helps programmers by:
a)
Identifying code errors
b)
Measuring computer speed
c)
Encrypting data
d)
Finding similarities that can simplify solutions
76.
Abstraction means:
a)
Removing all data from a program
b)
Guessing solutions without testing
c)
Using loops in code
d)
Ignoring unnecessary details to focus on important information
77.
What is an algorithm?
a)
A hardware device
b)
A software bug
c)
A type of data file
d)
A step-by-step set of instructions to solve a problem
78.
Which symbol in a flowchart usually represents a decision?
a)
Rectangle
b)
Oval
c)
Parallelogram
d)
Diamond
79.
In a flowchart an oval usually represents:
a)
start/stop
b)
Input or Output
c)
Process
d)
Decision
80.
Which of the following correctly shows the logical flow of a simple program?
a)
Start → Decision → Output → Input
b)
Start → Process → Start → End
c)
Input → End → Process → Decision
d)
Start → Input → Process → Output → End
81.
A flowchart’s loop never ends and the program runs forever. What is most likely missing?
a)
Another decision
b)
An extra process symbol
c)
A new variable
d)
A second start symbol
82.
A student’s code gives incorrect results even though it runs without errors. What is the best first step?
a)
Reinstall the program
b)
Delete all variables
c)
Ignore the problem
d)
Use debugging to test one step at a time
83.
Which of the following is an example of integrity?
a)
Arriving late but apologizing
b)
Ignoring small mistakes
c)
Copying a friend’s work
d)
Being honest even when no one is watching
84.
Punctuality means:
a)
Working quickly
b)
Dressing professionally
c)
Avoiding group work
d)
Being on time
85.
Which skill involves managing your tasks and deadlines effectively?
a)
Collaboration
b)
Integrity
c)
Adaptability
d)
Time management
86.
When a teammate shares an idea you disagree with, a professional response is to:
a)
Listen and calmly respond
b)
Interrupt and correct them
c)
Ignore them
d)
Tell them they’re wrong
87.
What does professionalism look like in class or at work?
a)
Talking over others
b)
Complaining about feedback
c)
Arriving whenever you want
d)
Using respectful language and behavior
88.
Collaboration means:
a)
Finishing work alone
b)
Checking grammar
c)
Competing to finish first
d)
Working together toward a shared goal
89.
When showing critical thinking you are:
a)
Analyzing a problem and considering different solutions
b)
Memorizing facts
c)
Avoiding difficult problems
d)
Agreeing with others automatically
90.
Persistence is best shown when you:
a)
Give up quickly
b)
Wait for someone else to fix it
c)
Ask the teacher to skip the challenge
d)
Keep trying even when something is difficult
91.
Which of the following shows accountability?
a)
Blaming your group
b)
Ignoring the issue
c)
Deleting your work
d)
Taking responsibility when you make a mistake
92.
A student who manages time well will most likely:
a)
Turn in work randomly
b)
Forget due dates
c)
Rush through every task
d)
Meet deadlines and stay organized
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