MAC addressing, also known as Media Access Control addressing, is a unique identifier assigned to network interface controllers (NICs) in devices like computers, smartphones, and routers. This 48-bit hexadecimal address, such as 00:1A:2B:3C:4D:5E, is embedded in the hardware by the manufacturer and serves as a physical address at the data link layer of the OSI model. It enables devices to communicate on local networks by identifying the source and destination for data packets, ensuring accurate transmission within the same network segment. Unlike IP addresses, which are logical and changeable, MAC addresses are generally fixed and used for direct hardware-level networking.
Table of contents
- Part 1: OnlineExamMaker – Generate and share mac addressing quiz with AI automatically
- Part 2: 20 mac addressing quiz questions & answers
- Part 3: Save time and energy: generate quiz questions with AI technology
Part 1: OnlineExamMaker – Generate and share mac addressing quiz with AI automatically
OnlineExamMaker is a powerful AI-powered assessment platform to create auto-grading mac addressing assessments. It’s designed for educators, trainers, businesses, and anyone looking to generate engaging quizzes without spending hours crafting questions manually. The AI Question Generator feature allows you to input a topic or specific details, and it generates a variety of question types automatically.
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Part 2: 20 mac addressing quiz questions & answers
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1. Question: What does MAC stand for in the context of networking?
Options:
A) Media Access Control
B) Maximum Access Code
C) Machine Address Controller
D) Main Access Channel
Answer: A
Explanation: MAC stands for Media Access Control, which is a unique identifier used at the data link layer of the OSI model to identify network devices.
2. Question: How many bits are in a standard MAC address?
Options:
A) 32 bits
B) 48 bits
C) 64 bits
D) 128 bits
Answer: B
Explanation: A standard MAC address consists of 48 bits, allowing for a vast number of unique addresses.
3. Question: Which part of a MAC address is managed by the IEEE?
Options:
A) The entire address
B) The first 24 bits (OUI)
C) The last 24 bits
D) None of the above
Answer: B
Explanation: The first 24 bits of a MAC address represent the Organizationally Unique Identifier (OUI), which is assigned and managed by the IEEE.
4. Question: What is the primary purpose of a MAC address?
Options:
A) To route data across the internet
B) To identify devices on a local network
C) To encrypt network traffic
D) To assign IP addresses
Answer: B
Explanation: MAC addresses are used to uniquely identify devices on a local network at the data link layer.
5. Question: In what format is a MAC address typically written?
Options:
A) Decimal with dots
B) Hexadecimal with colons or hyphens
C) Binary with slashes
D) Octal with underscores
Answer: B
Explanation: MAC addresses are usually expressed in hexadecimal format, separated by colons (e.g., AA:BB:CC:DD:EE:FF) or hyphens.
6. Question: Which type of MAC address is used for one-to-one communication?
Options:
A) Broadcast
B) Multicast
C) Unicast
D) Anycast
Answer: C
Explanation: Unicast MAC addresses are designated for direct communication between two devices.
7. Question: How is a MAC address assigned to a network interface?
Options:
A) Dynamically by a DHCP server
B) Hardcoded by the manufacturer
C) Randomly generated by the OS
D) Assigned by the user’s ISP
Answer: B
Explanation: MAC addresses are typically hardcoded into the network interface by the device manufacturer.
8. Question: What does the term “MAC flooding” refer to?
Options:
A) Overloading a switch’s MAC address table
B) Encrypting MAC addresses for security
C) Broadcasting MAC addresses across networks
D) Updating MAC addresses in real-time
Answer: A
Explanation: MAC flooding is an attack where an attacker sends a flood of MAC addresses to overwhelm a switch’s address table, potentially leading to security vulnerabilities.
9. Question: Which layer of the OSI model uses MAC addresses?
Options:
A) Network layer
B) Transport layer
C) Data link layer
D) Physical layer
Answer: C
Explanation: MAC addresses operate at the data link layer (Layer 2) of the OSI model.
10. Question: Can a MAC address be changed on a device?
Options:
A) Never
B) Yes, but it’s not recommended
C) Only on wireless devices
D) Yes, permanently by the manufacturer
Answer: B
Explanation: While MAC addresses can be changed (a process called MAC spoofing), it is generally not recommended due to potential network issues.
11. Question: What is a multicast MAC address used for?
Options:
A) Sending data to a single device
B) Sending data to all devices on the network
C) Sending data to a specific group of devices
D) Encrypting data transmissions
Answer: C
Explanation: Multicast MAC addresses allow data to be sent to a selected group of devices that have joined a multicast group.
12. Question: How can you view the MAC address on a Windows computer?
Options:
A) Using the command “ipconfig /all”
B) Using the command “netstat”
C) Using the command “ping”
D) Using the command “tracert”
Answer: A
Explanation: The “ipconfig /all” command in Windows displays detailed network information, including the MAC address.
13. Question: What is the broadcast MAC address?
Options:
A) FF:FF:FF:FF:FF:FF
B) 00:00:00:00:00:00
C) 01:00:5E:00:00:01
D) AA:AA:AA:AA:AA:AA
Answer: A
Explanation: The broadcast MAC address FF:FF:FF:FF:FF:FF is used to send data to all devices on the local network.
14. Question: What is the difference between a MAC address and an IP address?
Options:
A) MAC is for local networks; IP is for global routing
B) MAC is dynamic; IP is static
C) They are the same thing
D) MAC is used for encryption
Answer: A
Explanation: MAC addresses identify devices on a local network, while IP addresses are used for routing data across different networks.
15. Question: Which organization assigns OUIs for MAC addresses?
Options:
A) IANA
B) ICANN
C) IEEE
D) ISO
Answer: C
Explanation: The IEEE (Institute of Electrical and Electronics Engineers) is responsible for assigning OUIs, the first part of MAC addresses.
16. Question: What happens if two devices on the same network have the same MAC address?
Options:
A) Nothing, it’s fine
B) Network conflicts and communication errors
C) The devices automatically rename themselves
D) The network speed increases
Answer: B
Explanation: Duplicate MAC addresses can cause conflicts, leading to packet collisions and unreliable network communication.
17. Question: Is a MAC address globally unique?
Options:
A) Yes, by design
B) No, they can be duplicated
C) Only on wireless networks
D) Only if assigned by the user
Answer: A
Explanation: MAC addresses are designed to be globally unique, thanks to the OUI system managed by the IEEE.
18. Question: What is MAC spoofing?
Options:
A) Changing a device’s MAC address to mimic another
B) Broadcasting MAC addresses publicly
C) Encrypting MAC addresses for privacy
D) Updating MAC addresses automatically
Answer: A
Explanation: MAC spoofing involves altering a device’s MAC address to impersonate another device, often for bypassing security measures.
19. Question: In Ethernet networks, where is the MAC address stored?
Options:
A) In the device’s BIOS
B) On the network interface card (NIC)
C) In the router’s firmware
D) In the operating system’s registry
Answer: B
Explanation: The MAC address is embedded in the hardware of the network interface card (NIC).
20. Question: Can MAC addresses be used across different network types?
Options:
A) Yes, they are universal
B) No, they are specific to Ethernet
C) Only for wireless networks
D) Only for IPv6 networks
Answer: A
Explanation: While most common in Ethernet, MAC addresses can be used in various network types, as they are a standard at the data link layer.
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