| 2551 |
Which topology uses a single backbone cable with terminators at both ends? |
Computer Science/Informatics Practices
Network topologies |
Easy |
| 2552 |
How many links are needed to connect 6 computers in a fully connected mesh topology? |
Computer Science/Informatics Practices
Network topologies |
Medium |
| 2553 |
In a star network, the cable connecting one computer to the switch breaks. What is the effect? |
Computer Science/Informatics Practices
Network topologies |
Medium |
| 2554 |
A bank needs a network in which data can still reach its destination even if several links fail, and cost is … |
Computer Science/Informatics Practices
Network topologies |
Hard |
| 2555 |
How many bits are there in an IPv4 address? |
Computer Science/Informatics Practices
Addressing and the web |
Easy |
| 2556 |
Which system translates a domain name such as www.example.org into an IP address? |
Computer Science/Informatics Practices
Addressing and the web |
Easy |
| 2557 |
Which of the following is a valid IPv4 address? |
Computer Science/Informatics Practices
Addressing and the web |
Medium |
| 2558 |
Which statement best describes the difference between the Internet and the World Wide Web? |
Computer Science/Informatics Practices
Addressing and the web |
Medium |
| 2559 |
A laptop moves from the school Wi-Fi to a home Wi-Fi network. Which statement is most likely true? |
Computer Science/Informatics Practices
Addressing and the web |
Hard |
| 2560 |
In the URL https://www.school.edu.in/admission/form.html, what is "www.school.edu.in"? |
Computer Science/Informatics Practices
Internet applications and websites |
Easy |
| 2561 |
Which Internet application carries voice calls as data packets over the Internet? |
Computer Science/Informatics Practices
Internet applications and websites |
Easy |
| 2562 |
A results website shows each student only their own marks after they enter their roll number. What type of we… |
Computer Science/Informatics Practices
Internet applications and websites |
Medium |
| 2563 |
What is web hosting? |
Computer Science/Informatics Practices
Internet applications and websites |
Medium |
| 2564 |
Riya sends an email to Arun with Meena in BCC. Which statement is true? |
Computer Science/Informatics Practices
Internet applications and websites |
Hard |
| 2565 |
Which of the following is a web browser? |
Computer Science/Informatics Practices
Web browsers |
Easy |
| 2566 |
A small text file stored by a website on a user's computer to remember preferences is called a |
Computer Science/Informatics Practices
Web browsers |
Easy |
| 2567 |
A user installs a small program in the browser that blocks advertisements on all websites. This program is be… |
Computer Science/Informatics Practices
Web browsers |
Medium |
| 2568 |
Which statement about incognito (private) browsing is correct? |
Computer Science/Informatics Practices
Web browsers |
Medium |
| 2569 |
Why are third-party cookies considered a privacy risk? |
Computer Science/Informatics Practices
Web browsers |
Hard |
| 2570 |
Which exception is raised by int('abc')? |
Computer Science/Informatics Practices
Exceptions |
Easy |
| 2571 |
When does Python report a syntax error such as a missing colon after an if condition? |
Computer Science/Informatics Practices
Exceptions |
Easy |
| 2572 |
Which exception occurs when the code x = [1, 2, 3] is followed by print(x[5])? |
Computer Science/Informatics Practices
Exceptions |
Medium |
| 2573 |
What happens when the statement assert 2 > 3, "check failed" is executed? |
Computer Science/Informatics Practices
Exceptions |
Medium |
| 2574 |
Which is the correct way to define and raise a user-defined exception in Python? |
Computer Science/Informatics Practices
Exceptions |
Hard |
| 2575 |
Which block runs whether or not an exception occurs in the try block? |
Computer Science/Informatics Practices
try, except, else and finally |
Easy |
| 2576 |
When is the else block of a try statement executed? |
Computer Science/Informatics Practices
try, except, else and finally |
Easy |
| 2577 |
A try block contains print(5/0); it is followed by except ZeroDivisionError: print("Z"), else: print("E") and… |
Computer Science/Informatics Practices
try, except, else and finally |
Medium |
| 2578 |
A try block contains x = int("12"); it is followed by except ValueError: print("V"), else: print("E", x) and … |
Computer Science/Informatics Practices
try, except, else and finally |
Medium |
| 2579 |
A function has try: return "T" followed by finally: print("F"). What is printed when print(f()) is executed? |
Computer Science/Informatics Practices
try, except, else and finally |
Hard |
| 2580 |
Which mode opens a text file for adding data at the end without erasing existing content? |
Computer Science/Informatics Practices
Text files |
Easy |
| 2581 |
What does the readlines() method return? |
Computer Science/Informatics Practices
Text files |
Easy |
| 2582 |
A file contains the text PYTHON PROGRAM. After f = open(...) in read mode, s = f.read(6) is executed. What is… |
Computer Science/Informatics Practices
Text files |
Medium |
| 2583 |
For the same file containing PYTHON PROGRAM, f.seek(7) is followed by print(f.read(3)). What is printed? |
Computer Science/Informatics Practices
Text files |
Medium |
| 2584 |
A file has lines one, two and three. It is opened with 'w' mode, f.write("x") is executed and the file is clo… |
Computer Science/Informatics Practices
Text files |
Hard |
| 2585 |
Which module is used in Python to store objects such as lists in a binary file? |
Computer Science/Informatics Practices
Binary files |
Easy |
| 2586 |
Which file mode should be used to write pickled data to a new binary file? |
Computer Science/Informatics Practices
Binary files |
Easy |
| 2587 |
What is the correct form of the statement to write a dictionary d into the binary file object f? |
Computer Science/Informatics Practices
Binary files |
Medium |
| 2588 |
The process of converting a Python object into a byte stream is called |
Computer Science/Informatics Practices
Binary files |
Medium |
| 2589 |
A program writes a list and then a dictionary with two pickle.dump() calls, then reads the file with pickle.l… |
Computer Science/Informatics Practices
Binary files |
Hard |
| 2590 |
Which principle does a stack follow? |
Computer Science/Informatics Practices
Stack |
Easy |
| 2591 |
Removing an element from an empty stack is called |
Computer Science/Informatics Practices
Stack |
Easy |
| 2592 |
Starting with an empty Python list s, the operations s.append(10), s.append(20), s.pop(), s.append(30), s.app… |
Computer Science/Informatics Practices
Stack |
Medium |
| 2593 |
Which feature of a web browser is a typical application of a stack? |
Computer Science/Informatics Practices
Stack |
Medium |
| 2594 |
The characters of "CAT" are pushed one by one onto a stack and then all popped and joined in the order popped… |
Computer Science/Informatics Practices
Stack |
Hard |
| 2595 |
What is the postfix form of the infix expression A + B * C? |
Computer Science/Informatics Practices
Expression notation |
Easy |
| 2596 |
Which data structure is used to evaluate a postfix expression? |
Computer Science/Informatics Practices
Expression notation |
Easy |
| 2597 |
What is the value of the postfix expression 4 5 + 3 2 − *? |
Computer Science/Informatics Practices
Expression notation |
Medium |
| 2598 |
What is the postfix form of (A + B) * (C − D)? |
Computer Science/Informatics Practices
Expression notation |
Medium |
| 2599 |
What is the value of the postfix expression 8 2 3 * − 4 +? |
Computer Science/Informatics Practices
Expression notation |
Hard |
| 2600 |
Which principle does a queue follow? |
Computer Science/Informatics Practices
Queue |
Easy |