NEW
Font size
WorksheetsNetwork Communication Pre-Test
Total questions: 48
Worksheet time: 24mins
What does LAN stand for in network communication?
Large Area Network
Local Area Network
Long Area Network
Linked Area Network
Which of the following is an example of a WAN?
Home network
Small office network
Verizon’s network
School network
What type of area does a LAN cover?
A large area
A small area
An international area
A virtual area
Which network type would be suitable for connecting multiple schools?
LAN
PAN
MAN
WAN
What is a MAC address?
A temporary address for a device on a network
A physical address of a machine
An address that changes frequently
A type of IP address
How many sets of characters and digits does a typical MAC address have?
4
5
6
7
Which of the following is an example of an IPv4 address?
86:75:30:9J:EN:NY
127.0.0.1
2011:0db7:85a3:0000:0000:8b2e:1370:7234
192.168.1.1:8080
What is the main difference between a MAC address and an IP address?
MAC addresses are temporary, IP addresses are permanent
MAC addresses are for network devices, IP addresses are for physical machines
MAC addresses are permanent, IP addresses vary from network to network
MAC addresses are used for websites, IP addresses are used for emails
What does the POP3 protocol do?
Sends email messages
Receives email messages and stores them on a user’s machine
Stores email messages on a server
Allows access to emails from multiple devices
Which protocol allows email messages to be accessed by multiple devices?
POP3
SMTP
IMAP
HTTP
What is the primary function of the SMTP protocol?
Receives email messages
Sends email messages
Stores emails on a user’s machine
Allows access to emails from multiple devices
What port does HTTP use?
443
80
21
8080
Which protocol is a secure version of HTTP?
FTP
DNS
HTTPS
SMTP
What is the primary function of DNS?
To secure data transmission
To translate domain names to IP addresses
To load webpages faster
To encrypt data
Which port is used by HTTPS?
80
21
443
25
What is the primary function of a modem?
Routes traffic from one network to another
Converts between digital and analog
Stores data for future use
Provides wireless connectivity
Which device allows devices on a network to communicate?
Modem
Router
Switch
Hub
What does a cable modem do with incoming data from the cable?
Encrypts the data
Translates the data
Deletes the data
Compresses the data
Which of the following is an example of a device that converts data both ways?
Router
Cable modem
Switch
Firewall
What is the primary function of an access point in a network?
To filter and forward network traffic
To connect devices to a router or switch
To protect the network from malicious traffic
To store data
Which network device is responsible for filtering and forwarding network traffic?
Access Point
Firewall
Switch
Router
What is the main purpose of a firewall in a network?
To connect devices wirelessly
To filter and forward network traffic
To act as a barrier to protect the network
To increase network speed
What is the primary function of a modem in a network?
To connect multiple devices within a local network
To convert digital data to analog signals and vice versa
To provide wireless connectivity to devices
To protect the network from unauthorized access
Which device in a network is responsible for directing data packets between computers?
Modem
Router
Firewall
Access Point
What role does a firewall play in a network?
It connects devices to the internet
It provides wireless connectivity
It protects the network from unauthorized access
It converts digital data to analog signals
What is a packet in network transmissions?
A method to encrypt data
A way to send and receive data by breaking it into smaller pieces
A type of network cable
A software used for data analysis
What happens to packets once they arrive at their destination?
They are discarded
They are encrypted
They are re-arranged and data is put back together
They are sent back to the sender
What is the function of the header in a packet?
It contains the actual data of the packet.
It signifies the end of the packet.
It provides instructions for the packet.
It encrypts the packet data.
Which part of a packet contains the actual data?
Header
Payload
Trailer
Footer
What does the trailer in a packet signify?
The start of the packet
The end of the packet
The size of the packet
The encryption method used
What is the correct order of the packets to form a coherent message?
What time did the dentist go to the tooth hurt-y?
What did the time dentist go to the hurt-y tooth?
What the dentist did go to the time hurt-y tooth?
What time did the dentist hurt-y go to the tooth?
What is the main topic of the document?
Packet Transmissions
Data Encryption
Network Security
Internet Protocols
What is the example given in the document related to?
Sending emails
Received packets
Data encryption
Network security
What is the punchline of the joke in the document?
Tooth hurt-y
Time to go
Dentist appointment
Packet loss
What are the two frequency bands on which WiFi operates?
1.2 GHz and 3 GHz
2.4 GHz and 5 GHz
3.6 GHz and 7 GHz
4.9 GHz and 6 GHz
What is the standard for WiFi?
802.3
802.11
802.15
802.16
What are some differences among the 802.11 standards?
Different colors and shapes
Different frequencies and ranges
Different sizes and weights
Different speeds and heights
Which wireless networking standard operates on both 5 GHz and 2.4 GHz bands?
802.11a
802.11b
802.11n
802.11ac
What is the maximum distance for the 802.11b standard?
Up to 75 feet
Up to 150 feet
Up to 175 feet
Up to 115 feet
Which standard has the shortest maximum distance?
802.11a
802.11b
802.11g
802.11ac
Which wireless standard operates exclusively on the 5 GHz band and has a maximum distance of up to 115 feet?
802.11a
802.11b
802.11g
802.11ac
What is the SSID in the context of wireless security?
The WiFi's password
The WiFi's name
The WiFi's encryption type
The WiFi's frequency
Why should you change the default password on your WiFi?
It is difficult to remember
It is easy to find
It is too long
It is too complex
What is an example of an SSID?
"Home Network"
"Coffee Shop WiFi"
"Secure Connection"
"Internet Access"
Which wireless encryption standard is considered very unsecure due to having no encryption?
WEP
WPA
Open
WPA2
What is a characteristic of WEP (Wired Equivalent Privacy)?
Enhanced security
40-bit encryption
No encryption
More secure than WPA
Which encryption standard is described as more secure than WEP?
Open
WPA
WEP
WPA2
What does WPA2 stand for?
Wired Protected Access 2
Wireless Privacy Access 2
Wireless Protected Access 2
Wired Privacy Access 2
