List of top Computer Science Questions

A data structure in which elements can be inserted or deleted at / from both ends but not in the middle is
In simple chaining, what data structure is appropriate ?
Which of the following example expresses the commutative law of multiplication ?
Which of the following example expresses the commutative law of multiplication ?
Which of the following is most suitable for a menu-driven program ?
If all devices are connected to a central hub then this topology is called
Simplify: \( y = AB' + (A' + B)C \)
How are the constant declared ?
Which one of the following is used with cout as an operator ?
Boolean algebra is basically based on
The output of OR gate is 1 when
Which of the following will not return a value ?
Terabyte (TB) is the unit of measurement for
Match List-I with List-II:
List-IList-II
(A) f.seek(-10,1)(I) From beginning of file, move 10 bytes forward
(B) f.seek(10,1)(II) From current position, move 10 bytes backward
(C) f.seek(10)(III) From current position, move 10 bytes forward
(D) f.seek(-10,2)(IV) From end of the file, move 10 bytes backward
SQL applies conditions on the groups through ________ clause after groups have been formed?
What will be the result after pass 2 using Bubble Sort, if we are sorting elements in ascending order?
Initial List: 7 19 18 9 23 51 12 54 73
Amit wants to be familiar with SQL. One of his friends Anand suggests him to execute the following SQL commands:
(A) Create Table Student
(B) Use Database DB
(C) Select * from Student
(D) Insert into Student
In which order Amit needs to run the above commands?
In a ________ topology, if there are n devices in a network, each device has n-1 ports for cables.
140.168.220.200 is a 32-bit binary number represented as four decimal values, each 8 bits, in the range 0 to 255 separated by decimal points. What is this number called?
What is the purpose of a Domain Name System (DNS) Server in networking?
Match List-I with List-II:
List-I (Device)List-II (Use)
(A) RJ45 Connector(I) relay frames between two originally separate segments that follow same protocols.
(B) Bridge(II) amplifies a signal that is transmitted across the network so that the signal is received same as it is sent.
(C) Gateway(III) establishes an intelligent connection between a local area network and external networks with completely different structures.
(D) Repeater(IV) plug-in device primarily used for connecting LANs particularly Ethernet.
Which of the following statement(s) is/are TRUE in respect of Media Access Control (MAC) Address?
Options:
(A) It can be changed if a node is removed from one network and connected to another network.
(B) Each MAC address is a 12-digit hexadecimal number.
(C) It is a unique value associated with a network adapter called NIC.
(D) It is provided by the Internet Service Provider to locate computers connected to the internet.
Choose the correct answer from the options given below:
Which SQL expression calculates the square root of 16?
What is the result of the following arithmetic operation in SQL: SELECT 5 + NULL AS RESULT?
Which of the following is correct syntax for inserting foreign key constraint in a relation?