______ is an 'umbrellaâ€ activity that is applied throughout the software engineering process.
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Suppose that someone starts with a chain letter. Each person who receives the letter is asked to send it on to 4 other people. Some people do this, while some do not send any letter. How many people have seen the letter, including the first person, if no one receives more than one letter and if the chain letter ends after there have been 100 people who read it but did not send it out ? Also find how many people sent out the letter ?
- [A] 122 & 22
- [B] 111 & 11
- [C] 133 & 33
- [D] 144 & 44
AES is a round cipher based on the Rijndal Algorithm that uses a 128-bit block of data. AES has three different configurations. ______ rounds with a key size of 128 bits, ______ rounds with a key size of 192 bits and ______ rounds with a key size of 256 bits.
- [A] 5, 7, 15
- [B] 10, 12, 14
- [C] 5, 6, 7
- [D] 20, 12, 14
In which tree, for every node the height of its left subtree and right subtree differ almost by one ?
- [A] Binary search tree
- [B] AVL tree
- [C] Threaded Binary Tree
- [D] Complete Binary Tree