Data Link Layer Functions

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What is the primary function of the Data Link Layer in a network?

To establish a physical connection between devices

To allow upper layer protocols to access the physical layer media (correct)

To perform routing decisions

To translate IP addresses to MAC addresses

What is the purpose of the Checksum in the Data Link Layer?

To encapsulate packets

To perform routing decisions

To notify of errors (correct)

To control the flow of data

What is the function of the Logical Link Control (LLC) sublayer?

To route frames

To control access to the media

To encapsulate packets

To interface with the network layer (correct)

What type of communication allows both devices to simultaneously transmit and receive?

Full-duplex Signup and view all the answers

What is the primary function of the Media Access Control (MAC) sublayer?

To control access to the media Signup and view all the answers

What are the four basic Layer 2 functions performed by a router?

Accepting, de-encapsulating, re-encapsulating, and forwarding Signup and view all the answers

Which access method is used on legacy bus-topology Ethernet?

Contention-based access with collision detection Signup and view all the answers

What happens when devices transmitting simultaneously in CSMA/CD?

Signal collision Signup and view all the answers

What is the definition of topology in a network?

The arrangement and relationship of the network devices and the interconnections between them Signup and view all the answers

What is the purpose of the Collision Detection Process in CSMA/CD?

To detect and control collisions Signup and view all the answers

What information do devices include when transmitting in CSMA/CA?

The time duration needed for the transmission Signup and view all the answers

What is the purpose of the data link layer in the frame transmission process?

To encapsulate the frame data with a header and trailer Signup and view all the answers

How many hexadecimal digits are in an IPv6 address?

32 Signup and view all the answers

What is the first step in converting a decimal number to hexadecimal?

Convert the decimal number to an 8-bit binary string Signup and view all the answers

What is the purpose of having unique IP addresses?

To prevent issues and ensure proper communication Signup and view all the answers

What is the result of converting 168 to hexadecimal using the three-step process?

A8 Signup and view all the answers

What is the first step in converting a hexadecimal number to decimal?

Convert the hexadecimal number to a 4-bit binary string Signup and view all the answers

What is the grouping of four hexadecimal characters referred to in an IPv6 address?

Hextet Signup and view all the answers

What is shown in the Interface List?

All potential interfaces and MAC addressing Signup and view all the answers

What type of route is automatically added by the router?

Directly Connected route Signup and view all the answers

What is a characteristic of static routing?

It is adjusted manually by the administrator when there is a change in the topology Signup and view all the answers

What does dynamic routing do?

It discovers remote networks and maintains up-to-date information Signup and view all the answers

What is often used in conjunction with a dynamic routing protocol?

A static default route Signup and view all the answers

What is a function of dynamic routing?

Sharing static default routes with the other routers Signup and view all the answers

What is the purpose of the FIN flag in the TCP protocol?

To signal the end of data transmission Signup and view all the answers

What is the primary function of the ACK flag in the TCP protocol?

To acknowledge the receipt of data Signup and view all the answers

What is the purpose of the three-way handshake in the TCP protocol?

To establish a connection Signup and view all the answers

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 Signup and view all the answers

What is a key feature of TCP reliability?

Guaranteed and ordered delivery of packets Signup and view all the answers

What is the purpose of the SYN flag in the TCP protocol?

To synchronize sequence numbers Signup and view all the answers