Practice IT Operating System Questions and Answers

• Which of the following statements about a router is correct?
• Which of the following statements about the #include directive in C/C++ is correct?
• Which of the following conditions is not necessary for a deadlock to occur
• Which of the following statements about a Mutex (Mutual Exclusion) lock is correct?
• In a database system, a dense index is one in which:
• Which normal form does not allow multiple data to be stored in a single cell of a table a?
• Which of the following operators is the assignment operator?
• float i=10; int f=i; What kind of typecasting is happening in the above scenario a ?
• Which of the following statements about HTTP cookies is correct?
• In cryptography, a trapdoor function is defined as:
• Which of the following database is based on the concept where data is stored in different tables a?
• In C the array index starts from :
• Address is which type of attribute?
• Which of the following statements about a MAC (Media Access Control) address is correct?
• What does Section 66A of IT Act define?
• Length of IPv6 address is _____ bits.
• CPU generated memory request always refer the :
• A cache miss occurs :
• A Main Memory hit occurs :
• Locality of Reference are of the following two types: 
• For Dynamic Memory Allocation which of the following data structures is used?
• The time at which the process arrive at the system is called as :
• Which of the following conditions is essential for applying dynamic programming to a problem?
• EPN stands for :
• ______ creates a safe and encrypted connection over less secured network such as internet.
• In which of these very few non-zero values are present ?
• World wide web is based on :
• Which of the following best describes Cyclomatic Complexity of a program?
• Which of the following statements about private members in Java is correct?
• Cocomo (Constructive Cost Model) is a regression model based on LOC where LOC is :
• Which of the following best describes the Spiral Model in software development?
• Which of the following is a key practice of Extreme Programming (XP)?
•  Which of the following best describes unit testing?
• Which of the following statements about a primary key is correct?
• A relation is in Third Normal Form (3NF) if which of the following conditions is satisfied?
• Which of the following best describes soft computing?
• Which of the following best characterizes hard computing?
• Attributes of a file can be :
• Which of the following statements about the Test-and-Set Lock (TSL) instruction is CORRECT?
• When an object that has an incoming reference is deleted or deallocated, without modifying the value of the  pointer , so that the  pointer  still point...