WAN encapsulation of frames at the Data Link layer involves one or more services. Briefly discuss four of these services.
What will be an ideal response?
Addressing: For WAN links in which more than two nodes are involved in possible connections, a unique destination address is required.
Bit-level integrity check:With a bit-level integrity check, checksums calculated before and after transmission, when compared, indicate if the message changed between when it was sent and when it was received.
Delimitation: Data link frames require specific end-of-frame markers, and each frame's header and trailer must be distinct from its payload.
Protocol identification (PID): When WAN links support multiple protocols, some method to identify individual protocols in the payload is required. A protocol identification (PID) in the header supplies this information.
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Describe the concepts of slow start and congestion avoidance in TCP.
What will be an ideal response?
The symbol used to create a line that fills the space preceding a tab stop is called a(n) ________
A) drop cap B) anchor C) separator character D) leader character
The Color blending mode does not in any way affect the hue value of base pixels.
Answer the following statement true (T) or false (F)
What are layers? How are they useful?
What will be an ideal response?