30 Questions
Which layer of the OSI model is responsible for assigning IP addresses?
Network layer
What is the purpose of an ARP request message?
To request the MAC address associated with an IP address
In the given network communication example, how does Bob obtain Sally's MAC address?
Bob sends an ARP request message to the LAN
If two computers are in the same LAN, can they communicate directly without a router?
Yes
Which layer of the OSI model is responsible for communication between devices on different networks?
Network layer
What is the purpose of a router in network communication?
To facilitate communication between devices on different networks
What information is required for communication between devices in a network?
Both MAC address and IP address
Which device is responsible for connecting all the segments of a network together in a star topology Ethernet network?
Basic Hub
What is the purpose of a default gateway in a LAN?
To send data towards the destination if it is not part of the network
What is a collision domain?
A network segment where data collisions can occur when multiple devices attempt to transmit data at the same time
What can collisions cause in a network?
Data corruption and loss
How can collisions be reduced in a network?
Dividing networks into segments with routers or layer three switches
What is a broadcast domain?
A network segment where broadcast messages are sent and received by all devices
What can high broadcast traffic cause in a network?
Congestion
Which device is responsible for connecting two similar network segments together and breaking up collision domains?
Bridge
What is the primary function of a switch?
To recognize frames and pay attention to the source and destination MAC address
Where are firewalls usually placed in a network?
Closest to the WAN connection
What is the main purpose of a DHCP server?
To assign IP addresses to hosts
What is the goal of a DNS server?
To match hostnames to IP addresses
Which model is a condensed version of the OSI model and is composed of four layers?
DoD Model
What is the most common protocol suite for networking today?
TCP/IP
Which layer of the OSI Model do TCP and UDP operate at?
Transport layer
What is the main difference between TCP and UDP?
TCP is connection-oriented while UDP is connectionless
Which step is part of the TCP three-way handshake?
SYN-ACK
What does the client send to the server to initiate the TCP three-way handshake?
SYN
What does the server respond with during the TCP three-way handshake?
SYN-ACK
What does the client send to the server to confirm the TCP connection establishment?
ACK
Which layer of the OSI Model is the IP Header part of?
Network layer
What is the purpose of the IP Header?
To provide routing and addressing information
Which TCP/IP protocol is used for error detection and reporting?
ICMP
Test your knowledge on Network Interface Cards (NICs) with this quiz! Learn about how NICs connect your computer to the network and provide physical, electrical, and electronic connections to the network media. Find out if you can identify the different types of NICs and understand how they are installed in your computer.
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