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5 A user s credentials are checked against a database of accounts that are allowed to access the network This process is known as _________________________ A Authorization B Authentication C Rights D Permissions
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6 What type of device analyzes packets that attempt to enter the network and then either allows or denies the traf c, based on rules A Encryption B Firewall C Router D None of the above 7 What kind of rewall provides a single computer with two physical network interfaces A A dual-homed host rewall B A screened-host rewall C A screening router D A screened subnet rewall 8 Which component(s) are included in a screened subnet rewall con guration A Single screening router B Host rewall server C Circuit application D Two screening routers 9 Which type of rewall is used to provide security based on rules governing the network or transport layers A Packet level B Application level C Circuit level D None of the above
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10 Which encryption scheme uses the same encryption key to decrypt the data as the one that encrypted the data A Asymmetric B RSA standard C Symmetric D Public-key algorithm 11 Which of the following is classi ed as an encryption method (choose all that apply) A Stream cipher B Data cipher C Byte cipher D Block cipher 12 Which block cipher mode encrypts each block individually during the encryption process A Electronic Codebook (ECB) B Cipher Block Chaining (CBC) C Cipher Feedback Mode (CFB) D None of the above 13 What encryption standard is based on a xed 56-bit symmetric key encryption algorithm A RSA B DES C CPA D DSE 14 What technology uses certi cate authorities to verify that a message has not been tampered with A RSA encryption B Local security authority C Digital signatures D None of the above
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15 Which disaster recovery site provides only the facility, but no equipment or copy of the original data A Hot site B Warm Site C Blue site D Cold site 16 Which disaster recovery site provides the facility and ensures that the site has an up-to-date copy of the data needed to have a fully functional site A Hot site B Warm site C Blue site D Cold site 17 What type of spare component has power supplied to it and is ready to take over if the original component fails A Cold spare B Network spare C Warm spare D Hot spare
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18 Which of the following pieces of software provide a vulnerability scan of the network (select all that apply) A Languard B Norton AntiVirus C Microsoft Baseline Security Analyzer D Microsoft AntiSpyware E Spybot
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19 After installing a network operating system, what should you do before placing the machine on the network to help secure it A Harden the operating system B Install a rewall C Con gure email D Build user accounts 20 After hardening the operating system, what should you do to ensure that your server has all security xes applied to it A Install antivirus software B Install antispyware software C Patch the server D None of the above
LAB QUESTION
Your company wants to have a Windows 2003 network that hosts its own web site and email server The company would also like to allow wireless clients to connect to the network Diagram the network structure indicating which type of traf c will be allowed to pass through the different network sections and indicate reason for your solution You want to ensure that systems on the Internet cannot connect to the private corporate network
Self Test Answers
SELF TEST ANSWERS
Understanding System Security
1 A The Local Security Authority (LSA) handles these functions above the Security Accounts Manager and Security Reference Monitor Those services are used to provide speci c functions for the LSA B, C, and D are incorrect SAM is a local database of users and groups The Security Reference Monitor is used to validate a user right to perform a task and permission to access resources D The Security Accounts Manager (SAM) is the database of users and groups contained on a local Windows 2000 Professional or Windows XP Professional system A, B, and C are incorrect The LSA initiates the authentication process in Windows and validates against the SAM database The Logon Process is applied to allow a user to log on and be veri ed The Security Reference Monitor is used to validate a user right or permission to access resources B The Discretionary Access Control List (DACL) determines which users and groups have permissions to an object A, C, and D are incorrect SACL controls security auditing The owner maintains ownership of the object, and a user is not a valid ACL object type D The modify permission is the permission that allows a user to modify a le A, B, and C are incorrect Read and execute allow a user to read the contents of a le and execute a program from that location Read allows the user only to read the le contents, and List Folder Contents allows a user to see the les that exist in a folder but not read the contents of a le B Authentication is the process of logging onto the network A, C, and D are incorrect Authorization comes after authentication and involves determining whether a user can access a resource after it being authenticated Permissions and rights are methods of authorization
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