Chapter 2 Recording Business Transactions √ Quick Check Answers: 1. a 3. b 5. d 7. d 9. c 2. c 4. c 6. a 8. a 10. b Explanations: 3. b. Owner’s equity is $130‚000 ($50‚000 + $60‚000 + $200‚000 – $80‚000 – $100‚000). 7. d. Supplies balance is $1‚200 ($500 + $700). The payment of accounts payable does not affect supplies. 9. c. Ending equity is $70‚000‚ computed as follows: Beginning owner’s equity…….. $ 50‚000 Add: Net income: Revenues……………….. $110‚000
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Computer security and cryptography A computer program system that is supposed to be used only by those authorized must attempt to detect and exclude the unauthorized. Access to it is therefore usually controlled by insisting on an authentication procedure to establish with some degree of confidence the identity of the user‚ thence granting those privileges as may be authorized to that identity. Common examples of access control involving authentication include: * A captcha is a means of asserting
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match the cable type of the network. Most common hubs interconnect Category 3 or 5 twisted-pair cable with RJ-45 ends‚ although Coax BNC and Fiber Optic BNC hubs also exist. Ethernet Hubs An Ethernet hub is also called a multiport repeater. A repeater is a device that amplifies a signal as it passes through it‚ to counteract the effects of attenuation. Multistation Access Unit A Multistation Access Unit (MAU) is a special type of hub used for token ring networks. Switches Switches are
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CRYPTOGRAPHY- ENCRYPTION AND DECRYPTION Cryptography is the practice and study of techniques for secure communication in the presence of third parties (called adversaries). More generally‚ it is about constructing and analyzing protocols that overcome the influence of adversaries and which are related to various aspects in information security such as data confidentiality‚ integrity‚ authentication‚ and non-repudiation. Modern cryptography intersects the disciplines of mathematics‚ computer science
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Special Publication 800-48 Wireless Network Security Tom Karygiannis Les Owens 802.11‚ Bluetooth and Handheld Devices NIST Special Publication 800-48 Wireless Network Security 802.11‚ Bluetooth and Handheld Devices Recommendations of the National Institute of Standards and Technology Tom Karygiannis and Les Owens C O M P U T E R S E C U R I T Y Computer Security Division Information Technology Laboratory National Institute of Standards and Technology Gaithersburg‚ MD 20899-8930
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Analysis and Countermeasures of Network Security LiuBingyao Abstract This article is concerned about network security. It mentions about the present situation of network security and an analysis of the reason that lead to unsafe network environment. Then the article introduces two frequently used protocols in network security: HTTP (Hypertext Transport Protocol) and HTTPS (Hypertext Transfer Protocol over Secure Socket Layer)‚ then compare them and give a brief conclusion. On the other side
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Network Security Concepts Name NTC 410 Instructor ’s Name November 1‚ 2005 File security falls into two categories‚ encryption and access. Access to files can mean physical access to a computer with unsecured files or access via user permissions or privileges in the form of access control lists (ACLs) (Strengthen Your Users ’ File Security‚ 2003). The files kept on a server with NTFS storage can be locked to prevent anyone who does not have the correct permissions from opening them. This is
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Network Security Applications and Countermeasures |Domains |CIA Functions | | |Ethical Hacker |User domain |Confidentiality | |Intrusion Detection system / intrusion |WAN Domain |Integrity | |prevention system | | | |Access controls
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Part B END-OF-CHAPTER SOLUTIONS Fundamentals of Investments‚ 5th edition Jordan and Miller Chapter 1 A Brief History of Risk and Return Concept Questions 1. For both risk and return‚ increasing order is b‚ c‚ a‚ d. On average‚ the higher the risk of an investment‚ the higher is its expected return. 2. Since the price didn’t change‚ the capital gains yield was zero. If the total return was four percent‚ then the dividend yield must be four percent. 3. It is impossible
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CRYPTOGRAPHY Implementing a Secure Electronic Transaction Platform with Data Encryption and Decryption Processes. (A Case Study of an E-commerce web portal with an integrated payment system) ABSTRACT With the increasing popularity of internet‚ the e-commerce market where goods/products are being paid via an online medium has grown rapidly in recent past years‚ there is a glaring need for its payment information not to scrambled away or identified by unauthorised
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