has responsibility of transferring datagram from one node to physically adjacent node over a link
Anonymous Quiz
1%
Application Layer
9%
Transport Layer
82%
Data Link Layer
8%
Physical Layer
What is the responsibility of the link layer?
Anonymous Quiz
48%
Transferring datagrams between physically adjacent nodes
1%
Routing packets across the network
5%
Establishing a connection between two hosts
45%
All above
Which of the following is NOT considered a node in the context of the link layer?
Anonymous Quiz
7%
Hosts
9%
Routers
8%
Switches
57%
Data centers
19%
All Above
Broadcast channels: connect multiple hosts in and hybrid fiber-coaxial cable (HFC)) access networks.
Anonymous Quiz
70%
T
30%
F
Which service provided by the link-layer protocol involves encapsulating datagrams into frames and adding header fields?
Anonymous Quiz
82%
Framing
7%
Link access
5%
Reliable delivery
5%
Flow control
What identifies the source and destination on a frame header in the link-layer protocol?
Anonymous Quiz
7%
IP
85%
MAC
3%
Port numbers
5%
Transport layer protocols
Which service guarantees the error-free movement of each datagram across the link using acknowledgments and retransmissions?
Anonymous Quiz
4%
Framing
9%
Link access
32%
Reliable delivery
56%
Error detection
What type of links typically provide the reliable delivery service in the link-layer protocol?
Anonymous Quiz
45%
Wired links
32%
Wireless links
17%
Fiber optic links
6%
Coaxial links
Which service in the link-layer protocol involves coordinating frame transmissions on a shared broadcast link?
Anonymous Quiz
26%
Framing
50%
Link access
16%
Reliable delivery
9%
Error correction
What determines exactly where errors have occurred in a frame and corrects those errors in the link layer?
Anonymous Quiz
33%
Error detection
59%
Error correction
6%
Flow control
3%
Reliable delivery
In full-duplex communication, nodes at both ends of the link can transmit simultaneously.
Anonymous Quiz
88%
T
12%
F
Which component is responsible for implementing most of the link layer in hardware?
Anonymous Quiz
57%
Network adapter
17%
CPU
3%
Memory
23%
Host bus
Which side of the communication link performs error detection based on the error checking bits added by the sending side?
Anonymous Quiz
23%
Sending side
59%
Receiving side
18%
Both
What does the controller do on the sending side in the link-layer protocol?
Anonymous Quiz
5%
Extracts the network layer datagram
7%
Performs error detection
43%
Adds error checking bits
10%
Passes the datagram to the upper layer
35%
All Above
What is the role of the receiving controller in the link-layer protocol?
Anonymous Quiz
6%
Encapsulates the datagram in a frame
4%
Transmits the frame into the communication link
67%
Performs error detection based on error checking bits
5%
Coordinates frame transmissions on a shared link
18%
All Above
Which layer is responsible for reliable data transfer and flow control in the link-layer protocol?
Anonymous Quiz
11%
Physical layer
58%
Link layer
9%
Network layer
22%
Transport layer
EDC Refer to
Anonymous Quiz
5%
error detection and collision
94%
error detection and correction
0%
error detection and carlos
1%
None
Which error detection technique can detect and correct single-bit errors?
Anonymous Quiz
8%
Checksumming methods
76%
Parity checks
14%
Cyclic redundancy checks
3%
Hamming codes