COBS Quiz

The purpose of COBS algorithm is to encode data bytes for efficient, reliable, unambiguous packet framing.

COBS algorithm uses a particular byte value (typically zero) as a packet delimiter and replaces each zero data byte with a non-zero value to avoid misinterpretation of packet boundaries.

Byte stuffing is the process of transforming a sequence of data bytes, which may contain 'illegal' or 'reserved' values, into a longer sequence that contains no occurrences of those values.

<p>The overhead of the COBS algorithm refers to the extra length of the transformed sequence compared to the original sequence of data bytes.</p> Signup and view all the answers

<p>PPP (Point-to-Point Protocol) is an example of a well-known protocol that uses HDLC framing.</p> Signup and view all the answers

<p>Logical and arithmetic shifts are used for bit manipulation operations (bitwise operations).</p> Signup and view all the answers

<p>The result of a left shift operation is a multiplication by $2^n$, where $n$ is the number of shifted bit positions.</p> Signup and view all the answers

<p>Left shifting the binary number 0010 by one position results in the binary number 0100, which is 4 in decimal representation.</p> Signup and view all the answers

<p>When the first '1' is shifted out of the left edge in an unsigned representation, the operation has overflowed and the result of the multiplication is larger than the largest possible.</p> Signup and view all the answers

<p>Yes, left shift operation can be applied to signed values.</p> Signup and view all the answers