This set of IOT Multiple Choice Questions & Answers (MCQs) focuses on “MAC Address”.
1. Hardware address is known as _________
a) MAC address
b) IP Address
c) Network Interface Card
d) Address Resolution Protocol
View Answer
Explanation: Along with an IP address there is also a hardware address. Typically, it is tied to a key connection device in your computer called the network interface card. Every NIC (Network Interface Card) has a hardware address that’s known as MAC (Media Access Control).
2. MAC stands for ________
a) Media Area Control
b) Memory Access Control
c) Memory Area Control
d) Media Access Control
View Answer
Explanation: MAC stands for Media Access Control. Where IP addresses are associated with TCP/IP, MAC address are linked to the hardware of the network adapters.
3. What translates IP address into MAC address?
a) Organizationally Unique Identifier
b) Address Resolution Protocol
c) Network Interface Card
d) Burned In Address
View Answer
Explanation: A MAC address is given to an adapter when it is manufactured. It is hardwired or hard-coded onto your computer’s NIC and it is unique to it. Something called the ARP (Address Resolution Protocol) translates an IP address into MAC address.
4. Networking Hardware Address is referred with ________
a) IP address
b) MAC address
c) NIC
d) Organizationally Unique Identifier
View Answer
Explanation: Sensors usually have very limited capability in terms of networking connection. Your sensors can likely utilize Bluetooth networking connectivity. The protocols like LAN, HAN and PAN have a common property i.e., they can be directly connected to large networks like WAN or Internet.
5. Does MAC address contain characters.
a) True
b) False
View Answer
Explanation: The MAC address itself doesn’t look anything like an IP address. The MAC address is a string of usually six sets of two digits or characters, separated by colons.
6. MAC addresses are very useful in diagnosing network issues.
a) True
b) False
View Answer
Explanation: MAC addresses are very useful in diagnosing network issues, such as problems with IP address. They are useful for network diagnosis because they never change, as opposed to a dynamic IP address, which can change from time to time.
7. On wireless networks ________ filtering is the security measure.
a) OUI
b) IP
c) NIC
d) MAC
View Answer
Explanation: On wireless networks, a process called MAC filtering is a security measure to prevent unwanted network access by hackers and intruders. In MAC address filtering, the router is configured to accept traffic only from specific MAC addresses.
8. MAC addresses are used as ________
a) Network addresses
b) IP address
c) Hardware address
d) Burned in address
View Answer
Explanation: MAC address is used as a network address for most IEEE 802 network technologies, including Ethernet and Wi-Fi. Logically, MAC addresses are used in the media access control protocol sub layer of the OSI model.
9. IEEE standards for Institute of Electrical and Electronics Engineers.
a) False
b) True
View Answer
Explanation: MAC addresses are formed according to the rules of one of three numbering name spaces managed by the Institute of Electrical and Electronics Engineers(IEEE).
10. The original IEEE 802 MAC address comes from________
a) MAC address
b) IP address
c) Ethernet address
d) Http
View Answer
Explanation: The original IEEE 802 MAC address comes from the original Xerox Ethernet addressing scheme. This 48-bit address space contains potential 242 or 281,474,976,710,656 possible MAC addresses.
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