Practice IT Networking Questions and Answers

• What happens to the memory allocated to a local variable when the function exits?
• In object-oriented programming, what is the scope of an instance variable?
• What is the scope of a variable declared as "static" inside a function?
• What is the scope of a variable declared inside a block of code (e.g., within curly braces)?
• In which type of scope do variables declared in a function have priority over variables declared in the surrounding program?
• Which programming concept allows a variable name to refer to different entities based on its location in code?
• What is the scope of a parameter in a function?
• What will be the output of the following code snippet? int num = 10; int *ptr = # printf("%d", *ptr);
• In SQL, which keyword is used to retrieve data from a database?
• Which clause is used to filter rows in the result set based on a specific condition in SQL?
• What is the purpose of the "ORDER BY" clause in an SQL query?
• Which SQL keyword is used to add new rows to a table?
• What is the purpose of the "GROUP BY" clause in an SQL query?
• Which SQL clause is used to specify conditions for multiple tables when joining them together?
• Which SQL keyword is used to modify existing rows in a table?
• What is the purpose of the "HAVING" clause in an SQL query?
• Which SQL keyword is used to remove rows from a table?
• What is the purpose of the "JOIN" clause in an SQL query?
• What does HTML stand for in web technology?
• Which programming language is used to add interactivity and dynamic content to websites?
• What is the purpose of CSS in web development?
• Which web technology is used to style and format the layout of a web page?
• What is the function of a web server in web technology?
• Which protocol is used for secure data transmission over the internet?
• What is the purpose of a domain name in web technology?
• Which web technology allows web pages to adapt to different screen sizes and devices?
• Which markup language is used to define the structure and layout of content on a web page?
• What is the purpose of AJAX (Asynchronous JavaScript and XML) in web technology?
• In the context of computer networks, what is routing?
• Which device is responsible for making routing decisions in a network?
• What is the primary function of a router in a network?
• What is the routing table in a router used for?
• Which type of routing algorithm considers factors such as link cost and bandwidth to find the best path for data packets?
• In dynamic routing, how do routers exchange information about network topology?
• Which routing protocol is commonly used within an autonomous system (AS) to determine the best path for data packets?
• What is a default route in routing?
• Which type of routing is manually configured by a network administrator and does not change auAtomatically?
• Consider the following three functions. f1 = 100n f2 = nlogn f3 = n√n Which one of the following options arranges the functions in the increasing order o...
• Consider the following statements. S1:  The sequence of procedure calls corresponds to a postorder traversal of the activation tree. S2:  The sequenc...
• Consider the following two statements. S1:  Destination MAC address of an ARP request is a broadcast address. S2:  Destination MAC address of an ARP ...