A+ Answers

1. (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? (Points : 5)

        Extranet

        Internet

        Remote Protocol Exchange

        Intranet

Question 2. 2. (TCO B) The ________________ is a WAN network that includes hundreds of thousands to millions of machines and users worldwide. (Points : 5)

        Intranet

        Metropolitan Area Network (MAN)

        Internet

        Ethernet

Question 3. 3. (TCO B) Which of the following is considered a component of a network? (Points : 5)

        Server

        Client

        Circuit

        All of the above

Question 4. 4. (TCO C) Which is true about a network hub? (Points : 5)

        When a frame is sent from one computer to another, the hub retransmits it to all computers attached.

        it keeps a table of addresses and ports.

        Each circuit connected to it is not shared.

        Internally, the logical topology is a set of point-to-point circuits.

Question 5. 5. (TCO C) Hubs and switches also act as __________ to help prevent attenuation. (Points : 5)

        repeaters

        firewalls

        junction points

        layer 2 devices

Question 6. 6. (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. (Points : 5)

        router

        modem

        router and modem

        None of the above

Question 7. 7. (TCO D) In the case of Internet operation, a network access point is ______. (Points : 5)

        the point that links regional ISPs

        used by National ISPs to exchange data

        used to exchange data between local servers and local ISPs

        used as a redundant path between local ISPs

Question 8. 8. (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? (Points : 5)

        Firewall

        Intrusion detection system

        Traffic filters and traffic limiting

        Honeypot

Question 9. 9. (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? (Points : 5)

        Use a firewall

        Put the web server on the DMZ

        Put the web server in front of the firewall.

        Chassis based switch

Question 10. 10. (TCO F) The building block design approach is sometimes called ______. (Points : 5)

        wide and shallow

        narrow and deep

        wide and deep

        narrow and shallow

Question 11. 11. (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? (Points : 5)

        Needs analysis

        Traditional network design

        Building-block network design

        Lateral network design

Question 12. 12. (TCO G) __________ policies attempt to allocate costs associated with a WAN or a mainframe to specific users. (Points : 5)

        Charge-back

        Web spinning

        Internet access fees

        Support staff billing

Question 1. 1. (TCO A) Discuss and describe three trends in communications and networking. (Points : 25)

Question 2. 2. (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. (Points : 25)

Question 3. 3. (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. (Points : 25)

Question 4. 4. (TCO C) What are the preferred technologies used in the three technology layers in backbone design? Describe each of the technologies in detail.

(Points : 25)

Question 5. 5. (TCO D) What are the principal organizations responsible for Internet governance, and what do they do? (Points : 25)

Question 6. 6. (TCO E) Viruses and worms are issues that any networking professional must face. Compare and contrast viruses and worms. Be n. (Points : 25)

Question 7. 7. (TCO F) What are some major problems that can cause network designs to fail? Provide the problems in detail. (Points : 25)

Question 8. 8. (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.