Related Questions

A sender S sends a message m to receiver R, which is digitally signed by S with its private key. In this scenario. One or more of the following security violations can take place. 1) S can launch a birthday attack to replace m with a fraudulent message. 2) A third-party attacker can launch a birthday attack to replace m with a fraudulent message.  3) R can launch a birthday attack to replace m with a fraudulent message. Which of the following are possible security violations?
How many service types appear as a specific shape in SOMF model?
A standard has 2 sections. The results for 2 exams have been given for each of the sections. What is the number of students in the standard ? Result Number of students per section A B Students passing in Exams A & B 50 36 Students passing in Exam A only 58 39 Students passing in Exam B only 74 45 Students passing in neither exam 80 45
In an exam there are two subjects A and B and passing mark for individual subject and for the exam is 40% of maximum marks. Ronit got 35% more than passing marks in A and 20% less than passing marks in B. If passing marks for both the subjects is same, then what percent of maximum marks he got in the exam?
Match List I with List II. List I List II Elements of Communication Characteristic feature (A) Source (I) Means used to convey the message (B) Receiver (II) Set of verbal and nonverbal cues from a source (C) Message (III) A person who interprets the message (D) Channel (IV) A person or an event which provides verbal / non verbal cues. Choose the correct answer from the options given below:
Aditi wanted to send a secret message to her friend. She gave her friend a letter which did not seems to have anything written on it. She asked her friend to rub the paper with a slice of beet root and the message appeared in dark red colour. Which of the following could she have used to write the message?
A linear Hamming code is used to map 4-bit messages to 7-bit codewords. The encoder mapping is linear. If the message 0001 is mapped to the codeword 0000111, and the message 0011 is mapped to the codeword 1100110, then the message 0010 is mapped to
User level threads are threads that are visible to the programmer and are unknown to the kernel. The operating system kernel supports and manages kernel level threads. Three different types of models relate user and kernel level threads. Which of the following statements is/are true ? (a) (i) The Many - to - one model maps many user threads to one kernel thread (ii) The one - to - one model maps one user thread to one kernel thread (iii) The many - to - many model maps many user threads to smaller or equal kernel threads (b) (i) Many - to - one model maps many kernel threads to one user thread (ii) One - to - one model maps one kernel thread to one user thread (iii) Many - to- many model maps many kernel threads to smaller or equal user threads
In the communication process, a receiver is the person who encodes an idea. message interference. a message pathway. the person who decodes a message.
These friends receive message on their mobile phones at an interval of 20 minutes, 30 minutes and 45 minutes respectively. They start receiving message together at a particular time. After how much time will they receive message again on their mobile phone altogether?