MCQs

Disclaimer:

Educational Use Only:

The website links provided are to be used strictly for educational and knowledge-gaining purposes only.

No Misuse:

Do not misuse the links or the information contained therein for any commercial, illegal, or unethical activities.

Respect for Websites and Businesses:

Respect the intellectual property and business interests of the websites and their owners. Do not attempt to alter, copy, or redistribute content without proper authorization.

Acknowledge Value of Knowledge:

Recognize and value the knowledge and resources shared by these websites. Use the information responsibly and ethically.

No Endorsement:

The provision of these links does not imply endorsement of the linked sites, their content, or their products and services. Users are responsible for evaluating the suitability and accuracy of the information.

User Responsibility:

By accessing these links, you agree to use the information at your own risk and to comply with all applicable laws and website terms of use.

What is the first field in an Ethernet header?
a. Source MAC address
b. Destination MAC address
c. EtherType
d. FCS
Answer: b. Destination MAC addresssciencedirect+1
How long is the Destination MAC address field in the Ethernet header?
a. 4 bytes
b. 6 bytes
c. 8 bytes
d. 2 bytes
Answer: b. 6 bytescomputernetworkingnotes+2
What comes directly after the Destination MAC address in an Ethernet header?
a. EtherType
b. Preamble
c. Source MAC address
d. SFD
Answer: c. Source MAC addressnotes.networklessons+2
How many bytes is the Ethernet header (excluding the preamble and SFD)?
a. 10 bytes
b. 20 bytes
c. 14 bytes
d. 18 bytes
Answer: c. 14 bytessciencedirect+1
Which field indicates the type of protocol carried in the payload of an Ethernet II frame?
a. Frame Check Sequence
b. EtherType
c. Length
d. Source MAC
Answer: b. EtherTypecomputernetworkingnotes+2
What is the length of the EtherType field in Ethernet II frames?
a. 1 byte
b. 2 bytes
c. 4 bytes
d. 8 bytes
Answer: b. 2 bytesnotes.networklessons+1
What does the Length field specify in IEEE 802.3 frames?
a. Type of protocol
b. MAC Address length
c. Data payload size
d. Frame sequence
Answer: c. Data payload sizesciencedirect+1
Which field in the Ethernet frame checks for errors in transmission?
a. EtherType
b. Source MAC
c. FCS
d. SFD
Answer: c. FCS (Frame Check Sequence)automationcommunity+1
How many bits are in one MAC address within an Ethernet header?
a. 32 bits
b. 64 bits
c. 48 bits
d. 16 bits
Answer: c. 48 bitssanfoundry+2
What is the purpose of the SFD field in Ethernet frames?
a. Delimits the end of the frame
b. Indicates the start of the destination MAC address
c. Specifies payload type
d. Checks for errors
Answer: b. Indicates the start of the destination MAC addresscomputernetworkingnotes+1
What is the typical value for the SFD byte in Ethernet frames?
a. 10101010
b. 10101011
c. 11001100
d. 11111111
Answer: b. 10101011sanfoundry+1
In what order do the MAC addresses appear in the Ethernet header?
a. Destination, then source
b. Source, then destination
c. Source only
d. Destination only
Answer: a. Destination, then sourcenotes.networklessons+2
What is the function of the preamble in the Ethernet frame?
a. Synchronization
b. Error checking
c. Protocol indication
d. Frame identification
Answer: a. Synchronizationcomputernetworkingnotes+1
How many bytes makeup the preamble in an Ethernet frame?
a. 10 bytes
b. 7 bytes
c. 14 bytes
d. 2 bytes
Answer: b. 7 bytesnotes.networklessons+1
Which field directly follows the preamble in an Ethernet frame?
a. Destination MAC address
b. Source MAC address
c. SFD
d. Payload
Answer: c. SFDcomputernetworkingnotes+1
What distinguishes Ethernet II frames from IEEE 802.3 frames?
a. Header length
b. Type/Length field usage
c. CRC length
d. MAC address order
Answer: b. Type/Length field usagesciencedirect+1
Which value range for the Type/Length field indicates EtherType rather than length?
a. Less than 1500
b. Greater than 1536
c. Equal to 1024
d. Less than 512
Answer: b. Greater than 1536sciencedirect+1
What is a common EtherType value for IPv4 packets in Ethernet frames?
a. 0x0800
b. 0x1234
c. 0x8021
d. 0x0001
Answer: a. 0x0800notes.networklessons+1
What protocol does EtherType 0x0806 represent?
a. IPv6
b. ARP
c. IPX
d. TCP
Answer: b. ARPsciencedirect+1
What is removed before passing data to the network layer in an Ethernet frame?
a. SFD
b. Ethernet header
c. CRC
d. Preamble
Answer: b. Ethernet headernotes.networklessons+1
Which component in Ethernet header is used for physical addressing?
a. Preamble
b. MAC addresses
c. Length field
d. Data field
Answer: b. MAC addressessciencedirect+1
The minimum Ethernet frame size is:
a. 1500 bytes
b. 64 bytes
c. 1518 bytes
d. 512 bytes
Answer: b. 64 bytesnotes.networklessons+1
The maximum standard Ethernet frame size is:
a. 1518 bytes
b. 64 bytes
c. 2048 bytes
d. 4096 bytes
Answer: a. 1518 bytessciencedirect+1
What does the FCS field contain?
a. Destination MAC
b. CRC value
c. Protocol type
d. Frame length
Answer: b. CRC valueautomationcommunity+1
In the Ethernet header, which field is responsible for protocol multiplexing?
a. Type/Length
b. Source MAC
c. Preamble
d. FCS
Answer: a. Type/Lengthnotes.networklessons+1
How does an Ethernet switch forward a frame?
a. Uses source MAC address
b. Uses destination MAC address
c. Uses EtherType field
d. Uses length field
Answer: b. Uses destination MAC addressplacementpreparation
If an Ethernet frame payload is less than the minimum size, what is added?
a. FCS
b. Padding
c. SFD
d. Extra MAC address
Answer: b. Paddingsciencedirect+1
Which layer in the OSI model does the Ethernet header operate?
a. Network layer
b. Data Link layer
c. Physical layer
d. Transport layer
Answer: b. Data Link layernotes.networklessons+1
What field signifies the end of the physical layer encapsulation in Ethernet frames?
a. Preamble
b. SFD
c. FCS
d. Length
Answer: b. SFDcomputernetworkingnotes+1
What is the structure of MAC addresses used in Ethernet frames?
a. Octal numbers
b. Decimal numbers
c. Hexadecimal numbers
d. ASCII characters
Answer: c. Hexadecimal numberscomputernetworkingnotes+2
What type of frame uses the value in the Type/Length field to indicate payload length?
a. Ethernet II
b. IEEE 802.3
c. SNAP frame
d. Jumbo frame
Answer: b. IEEE 802.3sciencedirect+1
Which Ethernet frame field allows support for VLAN tagging?
a. EtherType
b. Source MAC
c. FCS
d. Preamble
Answer: a. EtherType (with value 0x8100)notes.networklessons+1
What is the role of the preamble?
a. Frame validation
b. MAC addressing
c. Synchronization of receiver
d. FCS calculation
Answer: c. Synchronization of receivercomputernetworkingnotes+1
How many hex digits represent a MAC address?
a. 6
b. 8
c. 12
d. 18
Answer: c. 12computernetworkingnotes+2
Which field follows the MAC address fields in Ethernet II header?
a. Length
b. Type/Length
c. EtherType
d. SFD
Answer: c. EtherTypesciencedirect+1
What is the minimum Ethernet payload size (excluding headers)?
a. 46 bytes
b. 64 bytes
c. 1518 bytes
d. 14 bytes
Answer: a. 46 bytesnotes.networklessons+1
What is the value for the minimum Ethernet frame (including header and FCS)?
a. 1518 bytes
b. 64 bytes
c. 46 bytes
d. 32 bytes
Answer: b. 64 bytessciencedirect+1
What does the start frame delimiter (SFD) mark?
a. Beginning of preamble
b. End of preamble
c. Beginning of data
d. End of frame
Answer: b. End of preamblecomputernetworkingnotes+1
The total number of fields in a typical Ethernet header (including preamble and SFD) is:
a. 3
b. 5
c. 6
d. 7
Answer: b. 5 (Preamble, SFD, Destination MAC, Source MAC, Type/Length)computernetworkingnotes+1
Which Ethernet header field differentiates IP packets from ARP packets?
a. FCS
b. EtherType
c. Source MAC
d. Length
Answer: b. EtherTypenotes.networklessons+1
MAC addresses are assigned by which organization?
a. IETF
b. IEEE
c. W3C
d. IANA
Answer: b. IEEEsciencedirect
What is the function of the Frame Check Sequence (FCS) field?
a. Indicate length
b. Check for errors
c. Specify protocol type
d. Mark frame start
Answer: b. Check for errorsautomationcommunity+1
Which Ethernet header field is only used for synchronization and is not counted in the frame size for MTU?
a. Destination MAC
b. Preamble
c. EtherType
d. FCS
Answer: b. Preamblecomputernetworkingnotes+1
Which field in Ethernet header is responsible for identifying the receiving device?
a. Source MAC
b. Destination MAC
c. EtherType
d. Length
Answer: b. Destination MACcomputernetworkingnotes+2
Which field is specifically designed for error detection in Ethernet frames?
a. SFD
b. Data
c. FCS
d. EtherType
Answer: c. FCSautomationcommunity+1
The unique MAC address in the Ethernet header is comprised of how many bytes?
a. 4 bytes
b. 8 bytes
c. 6 bytes
d. 2 bytes
Answer: c. 6 bytessanfoundry+2
Which Ethernet header field helps in protocol identification?
a. FCS
b. EtherType
c. Source MAC
d. Preamble
Answer: b. EtherTypenotes.networklessons+1
Which is not considered part of the IEEE 802.3 Ethernet header?
a. Preamble
b. Source MAC
c. Length
d. Destination MAC
Answer: a. Preamble (considered physical layer)notes.networklessons
What is used to ensure frame synchronization in an Ethernet network?
a. MAC address field
b. Frame Check Sequence
c. Preamble
d. EtherType
Answer: c. Preamblecomputernetworkingnotes+1
Which Ethernet header field allows devices to filter out frames not intended for them?
a. Source MAC
b. Destination MAC
c. Length
d. FCS
Answer: b. Destination MACsciencedirect+2

Blog

Systemethic Technologies

Leave a Reply Cancel reply

Useful links

Other Terms & Policies

Contact Info