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Ghauss Jacobi Method

August 16, 2020

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CS3542: Information Security

Q1. List down the possible security issues that can occur in an organization. What techniques can be applied to resolve these issues? Q2. Briefly explain the CIA triad. Q3. Distinguish between passive attacks and active attacks. What are the various forms of these two attacks? Q4. Two communicating parties are using public key infrastructure how they would achieve authentication and data integrity of the messages. Justify your answer with a figure. Q5. Convert the given plain text into cypher text by rail fence cypher. Key depth is 3. Plain Text: "Computer science students are very brilliant." Q6. Construct a Playfair matrix using the keyword "intelligent" and encrypt the plain text "security issues" using this matrix. Q7. Using the Vigenere Cipher, encrypt the plain text "cryptography", and the keyword is "House". Write down its ciphertext? Q8. Consider encrypting the plain text " nowadays it does not cost too much to ...

REPORT WRITING FORMAT AND APA GUIDELINES

HEADINGS General APA Guidelines Your essay should be typed, double-spaced on standard-sized paper (8.5" x 11") with 1" margins on all sides. You should use a clear font that is highly readable. APA recommends using 12 pt. Times New Roman Font. Major Paper Sections Your essay should include four major sections: the Title Page, Abstract, Main Body, and References. Title Page Contents of a properly formatted title page: Header - Includes a Running head: SHORTENED TITLE that is left justified. - Also includes a page number that is right justified. Centered Title Page Information - Title of Paper - Your Name - College / University Name - Course Name - Instructor Name - Date of Paper ** The above information should be centered in the middle of the page, usually aligned close to the left 3" ruler. ** Abstract [ delete page if not needed] [According to the Publication Manual of the American Psychological Association (APA), "An abstract is a brief, comprehensive summa...

How to control Elasticsearch memory usage

Firstly, Open /etc/elasticsearch/elasticsearch.yml in your nano editor using the command below: sudo nano /etc/elasticsearch/elasticsearch.yml Your network settings should be: # Set the bind address to a specific IP (IPv4 or IPv6): # network.host: 127.0.0.1 # # Set a custom port for HTTP: # http.port: 9200 In order for Elasticsearch to allow connections from localhost, and to also listen on port 9200 . Next, run the code below to determine the cause of the error: journalctl -xe Error 1 There is insufficient memory for the Java Runtime Environment to continue Solution As a JVM application, the Elasticsearch main server process only utilizes memory devoted to the JVM. The required memory may depend on the JVM used (32- or 64-bit). The memory used by JVM usually consists of: heap space (configured via -Xms and -Xmx ) metaspace (limited by the amount of available native memory) internal JVM (usually tens...

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