Practice IT Networking Questions and Answers

• Which field in the IP header is used for fragmentation and reassembly of packets?
• What is a transaction in a database management system?
• Which property of a transaction is known as atomicity?
• What does ACID stand for in the context of database transactions?
• Which concurrency control technique allows multiple transactions to access the database simultaneously?
• Which concurrency control technique uses read and write locks to ensure consistency?
• What is the purpose of a lock in concurrency control?
• Which concurrency control technique allows a transaction to read uncommitted data?
• Which isolation level ensures that a transaction can read data that is consistent with the start of the transaction?
• What is a serializable schedule in concurrency control?
• Which of the following is NOT a potential concurrency control issue?
• B-trees and B+ trees are primarily used for efficient storage and retrieval of data in:
• What is the main advantage of using a B-tree or B+ tree over a binary search tree?
• In a B-tree, the minimum number of children a non-root internal node can have is:
• Which property distinguishes a B+ tree from a B-tree?
• B-trees and B+ trees are commonly used for indexing in databases to improve the efficiency of:
• Which type of tree structure is optimized for sequential access and range queries?
• In a B+ tree, the leaf nodes are typically connected in a linked list to facilitate:
• Which type of tree provides better performance for read-intensive workloads?
• B-trees and B+ trees are designed to maintain balance by adjusting the:
• Which tree structure is commonly used in file systems to organize and manage disk blocks efficiently?
• Python is an example of which type of programming language?
• Which statement is true about Python indentation?
• What is the purpose of the "self" parameter in a Python class method?
• What is the output of the following Python code snippet?    x = [1, 2, 3]    y = x    x.append(4)    print(y)
• What is the purpose of the "if __name__ == '__main__':" statement in a Python script?
• What does an op-amp stand for?
• Which of the following is a passive electronic component used in analog circuits?
• In a voltage divider circuit, if the resistors are of equal value, what is the output voltage?
• What is the purpose of a capacitor in an AC circuit?
• Which type of diode allows current to flow in only one direction?
• Which of the following is an essential property of an inductor?
• What is the typical output voltage range of an operational amplifier (op-amp) powered by ±15V supply rails?
• Which of the following configurations provides a higher voltage gain in an op-amp?
• What is the purpose of a comparator in analog circuits?
• Which of the following is a measure of a diode's ability to conduct current in the forward direction?
• Which computer architecture allows multiple processors to work together on a single task?
• Which bus is responsible for transferring data between the CPU and memory?
• Which type of instruction pipeline allows multiple instructions to be processed simultaneously at different stages?
• Which of the following is a characteristic of a RISC (Reduced Instruction Set Computer) architecture?