Exam 23: Media Topologies

Jack needs a high-speed Internet connection at a reasonable price. A friend tells him that the DSL central office is at least 7 km from his place. Under the circumstances, which of the following Internet connectivity modes could prove to be most effective?

Of the following Ethernet technology types, which will allow for the longest distance between transmitting devices?

Jack walks back to his desk and tries to logon to his computer. He receives a message that states he needs to contact his administrator because his account is locked. What could have been the probable cause?

Tara, a LAN administrator, is tasked with designing a communications datacenter on a very tight budget. What will allow Tara to implement 10 Gigabit speeds, while still maintaining the lowest cost for cabling?

Jack wants to implement a 10 Mbps network that could run through a maximum length of 185 meters. Which connector should he use?

Via what media access method are devices assigned a time slot where they will have exclusive access to transmit data?

Which of the following cabling standards can support a maximum transfer rate of 1 Gbps?

Which of the following specifies an advantage of using a Plenum grade cable?

Jack has accidentally messed up his wireless configuration. He has increased the value of the beacon interval from 10 ms to 20 ms. How could this affect the chances of unknown users connecting to his wireless network?

Nathan has just finished installing a brand new firewall blocking FTP traffic. Almost immediately after the installation, Nathan is receiving calls that everyone in the office is no longer able to access the internet. Which of the following BEST explains the reason for the outage?

Bob, a new network consultant, is helping a business with their website updates. The firewall is in default deny mode, so he opens up port 21 to allow for FTP access to the webserver from the Internet. However, FTP still does not work. He notices that clients can connect, but cannot transfer any data. Why does FTP still not work?

What process prevents the private IP address of network nodes from being readily viewable from the public, while also allowing multiple devices with private IP addresses to access the internet through a single public IP address?

Jack has been monitoring his network using a specialized application. In spite of using a secure SSID password, unauthentic users are gaining access to his WiFi network without his consent. John wants specific users to be able to connect to his wireless network. What should he do?

Jack has not logged in to his e-mail account for a couple of weeks. Now, after entering his name and password, he receives an error message indicating that the username or password is invalid. What can he infer from this error message?

Spanning Tree Protocol is enabled on what kinds of network devices?

Which authentication protocol relies on a Ticket Granting Ticket system for identity verification to network resources?

How would you differentiate an RJ-11 connector from an RJ-45 connector?

Which of the following 802.11/wireless operating modes can operate without an access point?

In a typical scenario where DSL provider XYZ Ltd. is providing a DSL connection to Sam over a telephone line provided by ABC communications, who owns the demarc or the NID?

Which of the following topologies is the most difficult to manage, and is the least easily scalable?