Describe what is required to merge more than two files.
What will be an ideal response?
You can merge any number of files. To merge more than two files, the logic is only slightly more complicated; you must compare the key fields from all the files before deciding which file is the next candidate for output.
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Answer the following statements true (T) or false (F)
1) C# is like C++ in that programmers must manage memory explicitly. 2) A destructor has the same name as the class and its constructor. 3) You cannot determine when the garbage collector will execute. 4) The garbage collector looks for objects with no values. 5) Each object of a class has its own copy of all the instance variables of the class.
Which statement about hashing is false?
a. Hashing facilitates high-speed storing and retrieval of data. b. Two different data items can hash to the same cell; this is called a collision. c. A load factor of 0.5 usually results in good hashing performance, but less efficient utilization of memory. d. A load factor of 1.0 usually results in good hashing performance, but less efficient utilization of memory.
The _________ is the transport level port number which defines applications such as SNMP or TELNET. ?
A. ?Source IP address B. ?IP protocol field C. ?Source and destination transport level address D. ?Interface
What is sum after the following loop terminates?
int sum = 0; int item = 0; do { item++; if (sum >= 4) continue; sum += item; } while (item < 5); a. 6 b. 7 c. 8 d. 9 e. 10