Quiz

Answer the following questions to test your knowledge of this chapter:

1. Which encoding algorithm outputs a variable number of bytes depending on the value encoded?
   1. ZigZag
   2. Varint
   3. Length-delimited
2. Which encoding algorithm turns negative numbers into positive ones?
   1. Length-delimited
   2. varint
   3. ZigZag
3. What might be a problem with using varint?
   1. It can use more bytes than the original 32- and 64-bit integers
   2. It will encode negative numbers into 10 bytes
   3. All the above
4. What might be a problem with using ZigZag?
   1. It is less efficient at encoding positive numbers than varint
   2. It will encode negative numbers into 10 bytes
   3. It can use more bytes than the original 32- and 64-bit integers
5. When should you consider using fixed-sized integers?
   1. Never, always prefer using varints
   2. When dealing with larger numbers which will be encoded a more than 4 or 8 bytes
   3. When dealing with negative numbers
6. What is the difference between unpacked and packed repeated fields?
   1. Unpacked has overhead in terms of...