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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?
What are the Antagonists of the kidney vasopressin V2 receptors called?
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?
The network uses TCP/IP as the only network protocol. You configure the remote access server on the network. Some users report that when they connect to the server they receive the following message |" IPX SPX compatible computer deported error 733" The EPP control network protocol for the network is not available. If the users allow the connection to continue they are able to connect to the services that use TCP/IP. You want to prevent this message from being displayed. What should you do?
The figure shows the circuit of a rectifier type voltmeter. The diode D2 1. Does not allow any current to flow through the meter durign negative half cycle. 2. Does not allow reverse leakage current to flow through the meter during negative half cycle. 3. Short circuits the meter during negative half cycle. Which of these statements are correct?
In the communication process, a receiver is the person who encodes an idea. message interference. a message pathway. the person who decodes a message.
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:
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?
The message bit sequence to a DPSK modulator is 1, 1, 0, 0, 1, 1. The carrier phase during the reception of the first two message bits is π, π. The carrier phase for the remaining four message bits is
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