30 Questions
What is the primary function of the Data Link Layer in a network?
To allow upper layer protocols to access the physical layer media
What is the purpose of the Checksum in the Data Link Layer?
To notify of errors
What is the function of the Logical Link Control (LLC) sublayer?
To interface with the network layer
What type of communication allows both devices to simultaneously transmit and receive?
Full-duplex
What is the primary function of the Media Access Control (MAC) sublayer?
To control access to the media
What are the four basic Layer 2 functions performed by a router?
Accepting, de-encapsulating, re-encapsulating, and forwarding
Which access method is used on legacy bus-topology Ethernet?
Contention-based access with collision detection
What happens when devices transmitting simultaneously in CSMA/CD?
Signal collision
What is the definition of topology in a network?
The arrangement and relationship of the network devices and the interconnections between them
What is the purpose of the Collision Detection Process in CSMA/CD?
To detect and control collisions
What information do devices include when transmitting in CSMA/CA?
The time duration needed for the transmission
What is the purpose of the data link layer in the frame transmission process?
To encapsulate the frame data with a header and trailer
How many hexadecimal digits are in an IPv6 address?
32
What is the first step in converting a decimal number to hexadecimal?
Convert the decimal number to an 8-bit binary string
What is the purpose of having unique IP addresses?
To prevent issues and ensure proper communication
What is the result of converting 168 to hexadecimal using the three-step process?
A8
What is the first step in converting a hexadecimal number to decimal?
Convert the hexadecimal number to a 4-bit binary string
What is the grouping of four hexadecimal characters referred to in an IPv6 address?
Hextet
What is shown in the Interface List?
All potential interfaces and MAC addressing
What type of route is automatically added by the router?
Directly Connected route
What is a characteristic of static routing?
It is adjusted manually by the administrator when there is a change in the topology
What does dynamic routing do?
It discovers remote networks and maintains up-to-date information
What is often used in conjunction with a dynamic routing protocol?
A static default route
What is a function of dynamic routing?
Sharing static default routes with the other routers
What is the purpose of the FIN flag in the TCP protocol?
To signal the end of data transmission
What is the primary function of the ACK flag in the TCP protocol?
To acknowledge the receipt of data
What is the purpose of the three-way handshake in the TCP protocol?
To establish a connection
What is the result of the server sending a FIN flag to the client in the TCP protocol?
The client sends an ACK to the server
What is a key feature of TCP reliability?
Guaranteed and ordered delivery of packets
What is the purpose of the SYN flag in the TCP protocol?
To synchronize sequence numbers
This quiz covers the responsibilities and functions of the Data Link Layer, including communication between end-device network interface cards, error detection, and flow control. Learn about the Data Link Layer's role in accessing physical layer media and encapsulating Layer 3 packets into Layer 2 Frames. Test your knowledge of the Data Link Layer's responsibilities, including error notifications and logical connections between nodes.
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