Podcast
Questions and Answers
What is the primary responsibility of the data link layer?
What is the primary responsibility of the data link layer?
- Assembling and disassembling frames
- Converting data into electrical signals
- Transferring datagrams from one node to the physically adjacent node over a link (correct)
- Routing datagrams between different networks
Which hardware devices can implement the data link layer?
Which hardware devices can implement the data link layer?
- Ethernet card and 802.11 card (correct)
- Servers and workstations
- Modems and gateways
- Routers and switches
What does the data link layer do with the packets received from the network layer?
What does the data link layer do with the packets received from the network layer?
- Transmits them wirelessly
- Encapsulates them into frames (correct)
- Routes them to the correct destination
- Converts them into electrical signals
Where is the data link layer deployed?
Where is the data link layer deployed?
What is the main role of the data link layer protocol?
What is the main role of the data link layer protocol?
How does the data link layer transfer frames on the hardware?
How does the data link layer transfer frames on the hardware?
What is the responsibility of the Logical Link Control (LLC) sublayer in the data link layer?
What is the responsibility of the Logical Link Control (LLC) sublayer in the data link layer?
Which error detection mechanism is the least expensive and appends a redundant parity bit to every data unit?
Which error detection mechanism is the least expensive and appends a redundant parity bit to every data unit?
What type of error means that two or more bits in the data unit have changed from 0 to 1 or vice-versa?
What type of error means that two or more bits in the data unit have changed from 0 to 1 or vice-versa?
Which sublayer of the data link layer is responsible for hardware addressing mechanisms and controls physical media access?
Which sublayer of the data link layer is responsible for hardware addressing mechanisms and controls physical media access?
In the context of error detection, what is one-dimension parity check meant to achieve?
In the context of error detection, what is one-dimension parity check meant to achieve?
What protocol is used for wireless links at the data link layer?
What protocol is used for wireless links at the data link layer?
What are the two types of errors discussed in the text related to data units?
What are the two types of errors discussed in the text related to data units?
What is the main function of the Media Access Control (MAC) sublayer in the data link layer?
What is the main function of the Media Access Control (MAC) sublayer in the data link layer?
'Parity check bits are calculated for each row, which is equivalent to a simple parity check bit.' - This statement is related to which error detection mechanism?
'Parity check bits are calculated for each row, which is equivalent to a simple parity check bit.' - This statement is related to which error detection mechanism?
What does the Cyclic Redundancy Check (CRC) provide in addition to error detection?
What does the Cyclic Redundancy Check (CRC) provide in addition to error detection?
