Practice IT Operating System Questions and Answers

• Linux uses a time-sharing algorithm ___________
• If a series is already sorted, which sorting technique will finish in the least time?
• What is the best case time complexity of merge sort?
• Which is not an IoT OS?
• Fill the blank In K-Means algorithm, we calculate the distance between each point of the dataset to every ________ initialized. 
• Which is relational Database
• In datawarehouse , a fact table consist of
• State True or False Kernel level thread cannot share the code segment.
• State True or False Semi-structured data  is data that does not conform to a data model but has some structure. It lacks a fixed or rigid schema. It is...
• The latency of a network is 
• Which is computer object code?
• Predict the output list1 = ['physics', 'chemistry', 1997, 2000] list2 = [1, 2, 3, 4, 5, 6, 7 ] print "list1[0]: ", list1[0]          ...
• Which algorithm approach focus on Local Optimum solution?
• There is a BST and below is the Pre order of the BST, What will be it’s In order 150 70 60 80 250 200 350
• Which is correct version of delete query in SQL
• Fill in the blanks R _________are the same as the arrays in C language which are used to hold ____________data values of the same type
• What is the output for the below code MyList = ["New York", "London", "Paris", "New Delhi"] MyFile=open('output.txt','w')   for element in MyList:     ...
• Which involve two factor authentication
• State true or false MD5 Hashing Algorithm was invented by RSA Labs (Ronald Rivest) in 1991. MD5 was invented to replace its previous version, MD4. When Da...
• Bourne-style shells uses which below symbol
• Predict the output list1 = ['physics', 'chemistry', 1997, 2000] list2 = [1, 2, 3, 4, 5, 6, 7 ] print "list1[0]: ", list1[0]         ...
• Which is not  the property of Data warehouse
• OLAP and OLTP differs in
• Data warehouse has historical data
• fill the blank for space 14.
• Which layer is not in OSI but in TCP/IP
• Which is best fit for blank space 16?
• Router is responsible for packet forwarding, including routing. Router works at which layer?
• The _____________ deals with the coordination of the data transfer between end systems and hosts.
• fill the blank for 19.
• Which is not a access modifier in java?
• Which is correct way to write methods in java?
• Which is used for C shell?
• A single-line comment starts with 
• To exit from a loop in shell we can use?
• Fill in the correct option for 26 blank space.
• In public key cryptography ___   key is used for encryption and ____ key is used for decryption. ...
• Which refers to the creation of Internet Protocol (IP) packets with a false source  IP address  to i mpersonate another computer system.  ...
• cyber attack in which a malicious actor aims to render a computer or other device unavailable to its intended users by interrupting the device's normal fun...
• State true or false A ping of death attack involves sending a malformed packet to a targeted machine, resulting in deleterious behavior such as system c...