воскресенье, 18 октября 2015 г.

CIS 206 Final Exam


1. (TCO 1) UNIX (the predecessor of Linux) was originally developed by _____. (Points : 6)
2. (TCO 2) The _____ is the core component of the Linux operating system
3. (TCO 2) A Linux _____ Partition is the partition that is used as virtual memory on the hard d
1. (TCO 6) After connecting to an FTP site, the ______ command will toggle off the Interactive messages during file transfer
2. (TCO 6) After connecting to an FTP site, the _____ command will download multiple files.
3. (TCO 6) Name a protocol listed below that is connection-oriented
4. (TCO 5) Select the UNIX command used to generate a private and a public key for encrypting and decrypting files using secure shell (SSH).
5. (TCO 5) What is the name of the stable and reliable firewall daemon that is freely available in every version of Linux
6. (TCO 5) As a security measure, all TCP services are protected by TCP wrappers. What two files make up TCP wrappers
7. (TCO 5) The Linux firewall daemon iptables can enforce rules on all the following chains except _____.
8. (TCO 4) For security reasons, _____ is the name of the file that holds each user’s actual encrypted password
9. (TCO 4) In a file permissions, if a permission is unavailable or not assigned, a(n) _____ character replaces its position in the displayed permissions
10. (TCO 4) When using the chmod command in numeric mode, the permissions rw- can be represented by the number
11. (TCO 4) After the user is created, the content of the _____ directory is copied to the new users’ home directory
1. (TCO 7) In the Linux sudoers configuration file, which of the following lines will give the user student the right to execute the service command
2. (TCO 7) Unix services whose file name end in a d, such as dhcpd, xinetd, smtpd, httpd, etc. indicate that the particular file is a _____.
3. (TCO 7) Which one of the following Linux commands will allow you to view the Windows shares on a computer named winclient10 as the user smbuser
4. (TCO 7) What is the path and name for the directory where you can place scripts that will automatically run every hour
5. (TCO 6) What is the name of the UDP protocol that automatically provides TCP/IP host configuration information to PCs, and what UDP port numbers does it use
6. (TCO 5) What is the command required to create a set of public and private keys that can be used by SSH (secure shell)
7. (TCO 4) What is the name of the path and filename for the file that contains encrypted passwords for Linux users
8. (TCO 3) What is the single command that will display all files in the /bin directory that begin with the letters a, b, or c ) assuming /root is the current directory
9. (TCO 2) What is the core component of the Linux operating system called
10. (TCO 1) What is software called that is distributed free of charge, but without the sourcecode provided

CIS 407 Final Exam


1. (TCO 1) In order to design Web forms in Visual Studio.NET, we use the _______.
2. (TCO 1) Many of the Web server controls have a _______ menu, which allows developers options to perform common tasks and settings
3. (TCO 1) The starting page for the website can be changed by _______.
4. (TCO 2) _______ allow users to select controls by keyboard shortcuts
5. (TCO 2) You can use the ________ to specify the maximum amount of characters that can be entered in a textbox
6. (TCO 2) The CheckedChanged Event for a radio button occurs _________.
7. (TCO 3) You can use ________ to track the state of each user in the application.
8. (TCO 3) The ________ control displays the navigation as menu options
9. (TCO 3) ________ variables are maintained while the browser is opened
10. (TCO 4) To create an SQLDataSource from the Designer, developers can _______.
11. (TCO 5) _______ is the ability for the GridView to display data one page at a time.
12. (TCO 5) The ________ layer is used to contain the data for the application.
13. (TCO 6) Transaction objects in .NET contain methods to
14. (TCO 6) _________ starts the transaction process
15. (TCO 6) _________ reverts the changes in the database
16. (TCO 6) _________, in transaction processing, means that managed resources survive failures
1. (TCO 7) You need _______ in order to add one or more Views to a control
2. (TCO 7) A _________ control can be implemented to allow users to step through a process
3. (TCO 7) The _________ part of ASP.NET Web pages can contain a combination of Web controls, user controls, and HTML syntax
4. (TCO 9) SMTP sends e-mails in _______ format.
5. (TCO 9) A _______ is a web page that can be easily customized by users.
6. (TCO 9) The ________ file controls the configuration of the ASP.Net Web application.
7. (TCO 1) An absolute URL is _______.
8. (TCO 1) When you bind a dropdown list to a data grid, the system will _______.
9. (TCO 1) A _________ is a website that is located on your local computer
10. (TCO 2) You can use the ________ to specify the maximum amount of characters that can be entered in a textbox
11. (TCO 2) The CheckedChanged Event for a radio button occurs _________.
12. (TCO 2) The Rows and SelectionMode properties apply to _______.
13. (TCO 3) You can use ________ to track the state of each user in the application
14. (TCO 3) ________ values are stored in the memory of the ASP.NET process.
15. (TCO 9) In IIS, you can create a _____ directory, which points to a location other then (THAN) the directory you create for the project
1. (TCO 1) Describe three components found in the Application Layer
2. (TCO 2) Describe one item that needs to be kept in mind when designing web forms for the Presentation Layer of an N-Tier Architecture
3. (TCO 3) Describe the ASP.NET session state object and give one example of what it can be used for in a web application
4. (TCO 4) Describe two advantages of using stored procedures instead of inline SQL.
5. (TCO 5) List the seven general steps involved in creating a Web-based data-driven application that uses a bound control to display data from a database

FIN 515 Final Exam (Set 4)


1.Which of the following is not a step in the WACC valuation method?
2. Which of the following statements is correct?
3. Church Inc. is presently enjoying relatively high growth because of a surge in the demand for its new product. Management expects earnings and dividends to grow at a rate of 25% for the next 4 years, after which competition will probably reduce the growth rate in earnings and dividends to zero. The company’s last dividend, D0, was $ 1.25, its beta is 1.20, the market risk premium is 5.50%, and the risk-free rate is 3.00%. Which is the current price of the common stock?
4. (TCO G) The ABC Corporation’s budgeted monthly sales are $4,000. In the first month, 40% of its customers pay and take the 3% discount.
The remaining 60% pay in the month following the sale and don’t receive a discount.
ABC’s bad debts are very small and are excluded from this analysis.
Purchases for next month’s sales are constant each month at $2,000. Other payments for wages, rent, and taxes are constant at $500 per month.
Construct a single month’s cash budget with the information given. What is the average cash gain or (loss) during a typical month for the ABC Corporation?
5. (TCO G)
Consider the information for the following four firms.
Firm
Cash
Debt
Equity
rD
rE
τc
Eenie
0
150
150
5%
10%
40%
Meenie
0
250
750
6%
12%
35%
Minie
25
175
325
6%
11%
35%
Moe
50
350
150
7.50%
15%
30%
Which is the weighted average cost of capital for Meenie closest to?
1. (TCO H) Zervos Inc. had the following data for 2008 (in millions). The new CFO believes (a) that an improved inventory management system could lower the average inventory by $4,000, (b) that improvements in the credit department could reduce receivables by $2,000, and (c) that the purchasing department could negotiate better credit terms and thereby increase accounts payable by $2,000. Furthermore, she thinks that these changes would not affect either sales or the costs of goods sold. If these changes were made, by how many days would the cash conversion cycle be lowered?
2. (TCO C) A firm buys on terms of 2/8, net 45 days, it does not take discounts, and it actually pays after 58 days. What is the effective annual percentage cost of its nonfree trade credit? (Use a 365-day year.)
3. (TCO E) Your firm is planning to invest in a new power generation system. Galt Industries is an all-equity firm that specializes in this business. Suppose Galt’s equity beta is 0.75, the risk-free rate is 3%, and the market risk premium is 6%. If your firm’s project is all equity financed, then which is your estimate of your cost of capital closest to?
4. (TCO B)
You expect CCM Corporation to generate the following free cash flows over the next 5 years.
Year
1
2
3
4
5
FCF ($ millions)
25
28
32
37
40
Following Year 5, you estimate that CCM’s free cash flows will grow at 5% per year and that CCM’s weighted average cost of capital is 13%.
Which is the enterprise value of CCM Corporation closest to?
4. (TCO B)
You expect CCM Corporation to generate the following free cash flows over the next 5 years.
Year 1 2 3 4 5
FCF ($ millions) 25 28 32 37 40
If CCM has $200 million of debt and 8 million shares of stock outstanding, then which is the share price for CCM closest to?
5. (TCO D)
Which is the standard deviation of the returns on Stock A from 2000 to 2009 closest to?
Year End
Stock A Realized Return
(R – R)
(R – R)2
2000
46.3%
29.85%
0.0891023
2001
26.7%
10.25%
0.0105063
2002
86.9%
70.45%
0.4963203
2003
23.1%
6.65%
0.0044223
2004
0.2%
-16.25%
0.0264063
2005
-3.2%
-19.65%
0.0386123
2006
-27.0%
-43.45%
0.1887903
2007
27.9%
11.45%
0.0131103
2008
-5.1%
-21.55%
0.0464403
2009
-11.3%
-27.75%
0.0770063

MGMT 303 Final Exam (Set 2)


(TCO 1) Which of the following is an example of an organization?
(TCO 2) The process of actively monitoring the environment through activities such as reading and observation is called
(TCO 3) The Sarbanes-Oxley Act requires the _____ to vouch for the truthfulness and fairness of the firm’s financial disclosures
(TCO 4) Which of the following economies is NOT considered a mature market economy?
(TCO 5) Starbucks’ middle managers who are responsible for joint venture agreements with bookstores, hotels, and airports work from a(n) _____ plan
(TCO 6) The overall purpose of a business plan is to
(TCO 7) _____ is defined as systematically moving employees from one job to another.
(TCO 8) OSHA safety standards are intended to
(TCO 9) The communication process is
(TCO 10) Income statements, balance sheets, and audits are examples of the control of
(TCO 2) How is environment scanning helpful to a manager and the organization?
(TCO 3) How can the government influence social responsibility in organizations?
(TCO 8) Briefly explain one performance appraisal method. Explain an error that can occur in the performance appraisal process and one way to effectively deal with such an error
(TCO 9) Briefly explain two ways in which communication effectiveness can be improved
(TCO 10) Describe how a budget is created in most organizations. How does a budget help a manager regarding financial control?
(TCO10) In your opinion, which two characteristics of effective controls are the most important? Why?
(TCO9) List the individual barriers to communication. Discuss how can you overcome these barriers?
(TCO6) What are the major funding options for small businesses? Which of these options is most likely to be used by the majority of start-ups? Why?
(TCO 2) Organizations have both an internal and an external environment. Describe the general environment and give at least one specific example of each dimension, other than the examples given in the text and in the lectures
(TCO 8) You are a manager of a Consulting firm with 25 employees under your supervision. Employee Motivation appears to be slipping, as well as employee performance. Employees seem to have a negative attitude about their work, which has led to some turnover of employees and an increase in absenteeism. You have been asked to provide upper management with recommendations of how to improve motivation of the employees. Please create a motivation plan and list the main motivational theories you are applying in this plan. You should come up with a minimum of three ideas on how to improve motivation
(TCO 9) You are the plant manager at Acme Plastics. You are running two shifts, a day shift and an evening shift. Before the day shift leaves each day, the workers must get an adequate supply of raw materials from the warehouse for the evening shift to use. On several occasions, they have failed to do so. By the time the evening shift gets to work, the warehouse is locked up, and it takes about 3 hours to get someone out to unlock it and get the production line rolling again. The two shift supervisors are at each other’s throats, and you have to do something to correct the situation. What is the basic problem causing this conflict? What could you do to solve it?
(TCO 10) Our text defines the four functions of a management as planning, organizing, leading and controlling. Briefly put, the plan states the desired outcome or goal and the process for achieving it. Control is the regulation of organizational activities and processes in such a way as to facilitate goal attainment. Assume that you are a manager of a business. State the type of business you are managing (it can be any business you choose). Give two examples of controls that you would implement in the business and how they could facilitate goal attainment

MIS 589 Final Exam



(TCO A) Organization XYZ has just been granted access to the LAN of the ABC organization to access Web-based applications over the Internet. Organization ABC has established what type of access?
(TCO B) The ________________ is a WAN network that includes hundreds of thousands to millions of machines and users worldwide
(TCO B) Which of the following is considered a component of a network
(TCO C) Which is true about a network hub?
(TCO C) Hubs and switches also act as __________ to help prevent attenuation
(TCO D) A ___________ connect(s) two similar networks having the same network protocol and chooses the best route between two networks when there are multiple paths
(TCO D) In the case of Internet operation, a network access point is ______.
(TCO E) Your organization has been the victim of a recent DoS on one of your public websites. Your CIO wants this problem to have minimal impact on your organization in the future. What is the best technology to deploy to quickly detect and take action on a DoS attack once it starts
(TCO E) Your organization has decided to host a web server that will be accessible by the public. Organizational leadership is concerned about the web server being compromised and thus allowing the remaining network to be compromised. You want to come up with a solution to host and secure the Web server internally but still protect your network. What should you do
(TCO F) The building block design approach is sometimes called ______.
(TCO F) Your company is new and finally has acquired an operating facility. You are in change of designing the network. Organizational leadership has explained to you that they want a network that is simplistic, standardized, and that can be implemented in less than one year. What design option would best suit the needs of the organization
(TCO G) __________ policies attempt to allocate costs associated with a WAN or a mainframe to specific users
(TCO A) Discuss and describe three trends in communications and networking
(TCO B) Discuss and support your opinions of why combining voice and data is a major organizational challenge. Include your thoughts on its possible impacts on the organization in terms of competitive advantage, internal organization, and so forth
(TCO C) Switched Ethernet networks dominate the landscape of computer networks today. What improvements do Switched Ethernet networks have over its predecessor Shared Ethernet networks? Be specific and answer in details
(TCO C) What are the preferred technologies used in the three technology layers in backbone design? Describe each of the technologies in detail
(TCO D) What are the principal organizations responsible for Internet governance, and what do they do
(TCO E) Viruses and worms are issues that any networking professional must face. Compare and contrast viruses and worms. Be n
(TCO F) What are some major problems that can cause network designs to fail? Provide the problems in detail
(TCO G) The total cost of ownership (TCO) is a measure of how much it costs per year to keep one computer operating. TCO includes the cost of support staff to attach it to the network, install software, administer the network (e.g., create user ids, backup user data), provide training and technical support, and upgrade hardware and software. It also includes the cost of time “wasted” by the user when problems occur or when the user is attempting to learn new software.
Discuss in detail at least three approaches that can be used to reduce network costs

NETW 250 Final Exam


TCO1) The Central Office is the place
(TCO2) Like many softPBX systems, Asterisk refers to each leg of a voice call as a ____.
(TCO3) Known as ‘connectionless networking’, this protocol employs a method where IP datagram are sent over a network using a ‘best-effort’ approach. The recipient would not know if the packets sent were received by the intended recipient
(TCO4) These are facility connections from the phone company switch to the residential analog telephones; or the term used for delivering dial-tone to a group of phones
(TCO5) Used by hackers to see vulnerabilities and gain access, it is a systematic process that attempts to identify all of the open and available services on a TCP/IP host
(TCO6) This is a call accounting software that is retrieved from a PBX, where the incoming and outgoing call information are logged. The logged information can contain data as date, time, extension, trunk, caller ID, and duration of call
(TCO7) Along with CTI and ACD, this is a PBX supported application where multiple phones, telephony processes, phone operators, IVR, complex dial-plan, and hunt groups, run in a confined space and take information from customers, then, facilitate a response over the phone
(TCO10) This was the first VoIP standard, ratified by ITU-T in 1996, that addressed having real time communications for video and voice in an unreliable packet network, and applied for PBX-styled signaling that supports packet-based networks
(TCO11) This layer organizes and synchronizes dialogues between presentation entities in the OSI 7-Layer Communications Model
(TCO12) In Ethernet transmission, this is the result when two nodes transmit at the same time, which leads to data loss, re-transmission, delay, or latency
(TCO3) Name and explain the three most important factors that you must protect when Securing a VoIP Network
(TCO4) What makes coaxial cable popular among broadband applications to customer premises? Discuss its advantages
(TCO7) Out of CLECs, ILECs, and TSPs, which of these companies would use VoIP to offer voice services? Explain why
(TCO10) Briefly explain the importance of a Gateway in the VoIP infrastructure
(TCO5) How can it be determined if an ACD has been effective? What information would be provided from the ACD that would be viewed as valuable? List and define three reasons
(TCO6) What is a TMN? Discuss at least two Management Layers of TMN
(TCO8) What are the advantages and disadvantages of replacing a traditional PBX-type phone system with a Wireless IP phone?
(TCO9) What role, if any does, VoIP play in terms of the call center space
(TCO11) Describe what a converged network is and what benefits are derived from that
(TCO12) When deploying a VoIP system, what are some of the critical components that should be looked at in terms of assessing the environment for the readiness of a VoIP deployment

SEC 280 Final Exam


SEC 280 Final Exam
    1.Which of the following is true about the server virtualization (Hypervisor)?
    a.Virtualization can only exist in one location
    b.Virtualization can only access local disk storage
    c.Virtualization cluster can use different type and brand of processors
    d.Virtualization is useful for the software testing purposes, e.g., snapshotting.
    2.Which of the following is true about Cloud Computing?
    a.It is best for a small startup company
    b.It is best for security sensitive information, e.g., top secret documents
    c.It is best for a company cannot afford to lose the information, e.g., bank transactions
    d.It is best for a company is in a remote area and it cannot obtain a reliable Internet connection
    3.Which of the following is NOT an example of the business continuity?
    a.Power outage for 3 hours
    b.Chief Financial Officer involves an auto accident and cannot come to work for 3 days
    c.A terrorist attack
    d.An employee’s own laptop has been affected by virus
    4.Which of the following is NOT a consideration of a backup strategy?
    a.How much time do you have?
    b.What is your network backbone speed?
    c.How many monitor do you have?
    d.What time to start the backup?
    5.Comparing the difference between backup to disk and tape. What is one reason the tape is preferred?
    a.Tape is much faster
    b.Tape is much more expensive
    c.Tape is water proof
    d.Tape can be transport out of site for DR purpose
    6.Which of the following is true about the SAN Snapshot?
    a.It is taking a picture of the raw image of the disk
    b.It makes a backup copy of the operating system
    c.It makes a backup copy of the VMDK files
    d.None of the above
    7.Which of the following backup method requires the most of tape to restore?
    a.Incremental
    b.Differential
    c.Full
    d.Delta (application)
    8.What is NOT the purpose of colocation?
    a.To prevent power outage
    b.To prevent data loss
    c.To prevent nature disaster, e.g., flood
    d.To prevent denial of services attack (DoS)
    9.Which of the following is the most common and least expensive backup method?
    a.File level (e.g., Windows file system)
    b.Operating System level (e.g., VMware datastore)
    c.Image level (e.g., SAN snapshot, Ghost)
    d.All of the above
    10.What is FALSE about data retention?
    a.How much data I can write on the tape?
    b.When I can re-write the tape?
    c.When I must send my tapes to offsite vault such as Iron Mountain for monthly or weekly end backup
    d.When I can erase the tape?
    11.Which of the following about a wireless access point (in 802.11g standard) is true?
    a.It operates like a hub and in half-duplex mode
    b.It operates like a hub and in full-duplex mode
    c.It operates like a switch and in half-duplex mode
    d.It operates like a switch and in full-duplex mode
    12.Which of the following 802.1x protocol (in a wireless setting) uses mutual authentication?
    a.EAP-TLS
    b.LEAP
    c.PEAP
    d.EAP-FAST
    13.Per class lecture, which of the following technology is for Power Over Ethernet?
    a.802.11n
    b.802.3af
    c.802.1x
    d.802.11g
    14.A bank has a Class-C IP address 192.168.10.0 and is to be subdivided into 2 branches. How many bit(s) need to be borrowed to accommodate 3 branches? (We are using the zero subnet 2s formula)
    a.1
    b.2
    c.3
    d.4
    15.Which of the following is true regarding to the RADIUS?
    a.It forwards the username and password to an Active Directory for validation
    b.The overall function of a RADIUS is similar to a Cisco Wireless LAN controller
    c.RADIUS uses Mandatory Access Control
    d.RADIUS is a client / server protocol. An RADIUS uses UDP port 1812 for authentication and UDP 1813 for accounting
    16.Which of the following is true when your boss asks you to make sure the company’s website is available 24x7x365?
    a.Integrity
    b.Authentication
    c.Confidentiality
    d.Assurance
    17.Updating Windows patch on a server is best described as?
    a.Network Security
    b.Host Security
    c.Physical Security
    d.Social Engineering Security
    18.Which of the following would be best described as Network Security?
    a.Implementing Intrusion Detection System (IDS) on the network
    b.Run Windows Update on a user’s workstation
    c.Make sure a server cannot use USB drive
    d.Having a wireless access point deploy on every departments
    19.Most of today’s firewalls are executing rules base on which of the following:
    a.Implicit deny
    b.Implicit allow
    c.Explicit deny
    d.Explicit allow
    20.To provide an evidence to prove one is indeed sign the document electronically:
    a.Authentication
    b.Integrity
    c.Assurance
    d.Nonrepudiation
    21.A target received a spoof email (such as BankofAmerica) and calls back to the sender. The target will not question the authenticity of the tech support. This is an example of:
    a.Social Engineering
    b.Reverse social engineering
    c.Forward social engineering
    d.Hoaxes
    22.The simple tactic of following closely behind a person who has just used their own access card to gain physical access to a building is called?
    a.Shoulder surfing
    b.Piggybacking
    c.Access drafting
    d.Man trap
    23.A sender uses his private key to encrypt the message then the receiver uses sender’s public key to decrypt the message.
    a.Message digest
    b.Simple digital signature
    c.Complex digital signature
    d.Cryptography
    24.Which of the following is special mathematical function to perform one-way encryption?
    a.Hashing
    b.Algorithm
    c.Symmetric
    d.Asymmetric
    25.Which of the following makes an encryption algorithm more robust (harder to crack)?
    a.Keyspace
    b.Message Digest
    c.Algorithm
    d.Hashing
    26.An ________ can be viewed as an extension of a company's intranet that is extended to users outside the company, usually partners, vendors, and suppliers.
    a.Extranet
    b.Internet
    c.Intranet
    d.DMZ
    27.Which of the following OSI layers uses logical addressing?
    a.Datalink
    b.Network
    c.Transport
    d.Physical
    28.Which of the following OSI layers formats and encrypts data to be sent across a network?
    a.Presentation
    b.Session
    c.Application
    d.Transport
    29.Which of the following is the best reason uses UDP?
    a.Broadcasting message
    b.Email
    c.Telnet to a router
    d.Web surfing
    30.In an IP address network 192.168.1.0/24, what is 192.168.1.255 means?
    a.Broadcast
    b.Unicast
    c.This network
    d.This node
    31.Which of the following PKI component is responsible for checking the identity of a company during the certificate application process?
    a.Registration Authority
    b.Department of Licensing
    c.Certificate Authority
    d.Digital Signature
    32.Which of the following is not a part of digital certificate?
    a.Validity period
    b.Issuer’s unique name
    c.Digital signature of the CA
    d.A private key
    33.What is the best method to exchange the shared secret when establishing a site-to-site VPN?
    a.Email
    b.Instant messaging
    c.Facebook
    d.US Postal Service
    34.What is the best method to obtain a party’s public key?
    a.Digital Certificate
    b.Email
    c.Facebook
    d.Cell Phone
    35.Which PKI components issue the digital certificate?
    a.Registration Authority
    b.Certificate Authority
    c.Licensing Authority
    d.Digital Signature
    36.Which of the following method is one of the ways for customers to find out the digital certificate has expired and/or revoked?
    a.Certificate Revocation List (CRL)
    b.Notification from CA
    c.Email from the vendor
    d.CA’s public key cannot open the certificate’s digital signature
    37.Which of the following is true regarding to the certificate validation procedure?
    a.We need to use the public key of the CA to decrypt the CA’s digital signature
    b.We need to use the private key of the CA to encrypt the CA’s digital signature
    c.We need to use the public key of the Vendor to encrypt the Vendor’s digital signature
    d.We need to use the private key of the Vendor to decrypt the Vendor’s digital signature
    38.Which of the following is the best method to obtain FREE digital certificates (Assuming you are in a Windows Domain environment)?
    a.Microsoft Certificate Authority
    b.Verisign Certificate Authority
    c.Third party certificate authority
    d.All of the above
    39.What is used to increase the complexity of an encryption algorithm?
    a.Message Digest
    b.Digital Signature
    c.Symmetric Algorithms
    d.Keyspace
    40.Which of the following is a mathematical function that performs one-way encryption? The main purpose is to verify the integrity of a plaintext.
    a.Hashing
    b.Symmetric Algorithms
    c.Asymmetric Algorithms
    d.Digital Signature
    41.Which of the following cryptography provides the fastest encrypt and decrypt process?
    a.Symmetric
    b.Asymmetric
    c.PKI
    d.Digital Signature
    42.What is a digital signature?
    a.You will sign a message with your private key
    b.You will sign a message with your public key
    c.You will sign a message with the recipient’s private key
    d.You will sign a message with the recipient’s public key
    43.How to verify the integrity of a downloaded file?
    a.Comparing the message digests
    b.Comparing the encryption algorithm
    c.Comparing the hashing algorithm
    d.Comparing the public keys
    44.Which of the following is an example of asymmetric algorithm?
    a.Both encryption and decryption keys are the same
    b.Both encryption and decryption keys are different
    c.Both message digests are the same
    d.Both message digests are different
    45.Which of the following best describe ONE private IP address (internal workstations) is translated into ONE public IP address to access the Internet?
    a.Static NAT
    b.Dynamic NAT
    c.PAT
    d.All of the above
    46.Which protocol is “to request the MAC address for a given IP address”?
    a.ARP
    b.DHCP
    c.OSPF
    d.ICMP
    47.What service is use to resolve a fully qualified domain name (FQDN) into an IP address?
    a.ARP
    b.DNS
    c.DHCP
    d.ICMP
    48.Which of the following is not an example of a routing protocol?
    a.PPTP
    b.RIP
    c.EIGRP
    d.OSPF
    49.Which of the following about this “192.168.5.55/24” is true?
    a.The subnet mask is 255.255.0.0
    b.The host ID is 55
    c.The network ID is 55
    d.The 192.168.5.0 is an IP address of a Windows server
    50.What is the purpose of DMZ?
    a.So if the corporate web server is hacked the Internal network is not compromised
    b.So if the corporate web server is hacked the Internet network is compromised
    c.So you can place all the internal servers (such as a domain controller) in the DMZ network
    d.So you can place all the remote workers in DMZ network