Time Left - 15:00 mins

Mission ISRO Subjects Revision Test-3 (CN & TOC )

Attempt now to get your rank among 678 students!

Question 1

Suppose you are browsing the world wide web using a web browser and trying to access the web servers. What is the underlying protocol and port number that are being used?

Question 2

A mechanism or technology used in Ethernet by which two connected devices choose common transmission parameters such as speed, duplex mode and flow control is called

Question 3

The protocol data unit (PDU) for the application layer in the Internet stack is:

Question 4

Phase transition for each bit are used in

Question 5

An Ethernet hub

Question 6

The process of modifying IP address information in IP packet headers while in transit across a traffic routing device is called

Question 7

SHA—1 is a

Question 8

Dynamic routing protocol enables routers to:

Question 9

How many characters per sec (7 bits +1 parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 start and 1 stop bit)?

Question 10

What is the number of steps required to derive the string ((() ()) ()) for the following grammar.
SDescription: E:\Gate\isro-cs\ISRO-CS-2014_files\image001.pngSS
S Description: E:\Gate\isro-cs\ISRO-CS-2014_files\image001.png(S)
S Description: E:\Gate\isro-cs\ISRO-CS-2014_files\image001.pngDescription: E:\Gate\isro-cs\ISRO-CS-2014_files\image002.png

Question 11

Consider the following grammar.
S Description: E:\Gate\isro-cs\ISRO-CS-2014_files\image001.pngAB
A Description: E:\Gate\isro-cs\ISRO-CS-2014_files\image001.pnga
A Description: E:\Gate\isro-cs\ISRO-CS-2014_files\image001.pngBaB
BDescription: E:\Gate\isro-cs\ISRO-CS-2014_files\image001.pngbbA
Which of the following statements is false?

Question 12

Let L={w  (0 + 1)*|w has even number of 1s}, i.e. L is the set of all bit strings with even number of 1s. Which one of the regular expression below represents L?

Question 13

Which of the following is FALSE with respect to possible outcomes of executing a Turing Machine over a given input?

Question 14

If L and L’ are recursively enumerable, then L is
  • 678 attempts
  • 3 upvotes
  • 7 comments
Apr 6GATE & PSU CS