Practice IT Networking Questions and Answers

• Which field in the IP header indicates the maximum number of hops a packet can take before being discarded?
• Which network layer protocol is used to report errors and diagnose network problems?
• Which of the following is not a network layer addressing scheme?
• Which network layer protocol is responsible for multicasting, where a packet is sent to multiple destinations simultaneously?
• Which network layer protocol provides a reliable, connection-oriented delivery of packets?
• What is the primary goal of cybersecurity?
• Which of the following is an example of a strong password?
• Which of the following is NOT an example of a common cybersecurity threat?
• What is the purpose of encryption in cybersecurity?
• What does the term "phishing" refer to in the context of cybersecurity?
• Which of the following is an example of two-factor authentication?
• What is the purpose of a firewall in cybersecurity?
• What is the term for malicious software designed to damage or disrupt computer systems?
• What is the term for a cybersecurity attack that floods a network or website with excessive traffic, causing it to become unavailable?
• What is the best practice to protect sensitive data when using public Wi-Fi networks?
• The SI unit for measuring electric current is:
• The SI unit for measuring temperature is:
• The SI unit for measuring length is:
• The SI unit for measuring time is:
• The SI unit for measuring mass is:
• The SI unit for measuring electric potential is:
• The SI unit for measuring frequency is:
• The SI unit for measuring pressure is:
• The SI unit for measuring energy is:
• The SI unit for measuring electric resistance is:
• What is an algorithm?
• Which of the following is NOT a characteristic of a good algorithm?
• What is the purpose of analyzing the complexity of an algorithm?
• Which algorithmic design technique involves breaking down a problem into smaller subproblems and solving them recursively?
• Which of the following sorting algorithms has a worst-case time complexity of O(n^2)?
• Which searching algorithm requires the data to be sorted beforehand?
• What is exception handling in programming?
• Which keyword is used to throw an exception explicitly?
• Which block of code is used to handle exceptions?
• What is the purpose of the finally block in exception handling?
• What is the role of the catch block in exception handling?
• Which of the following statements is true about checked exceptions?
• What happens if an exception is thrown but not caught?
• Which of the following is NOT a common exception class in Java?
• What is the purpose of the try-catch-finally construct?