CH 7 Review
You have connected an ADSL Internet connection as shown in the exhibit. The ports at the phone jack are connected to the same single-number POTS line. At what location should you place the DSL filter?
"B" only
What is a static IP address?
A permanent IP address
True or False? VPN connections CANNOT be established by anyone other than the person that configured it.
False
What connector is shown in the exhibit?
RJ-45
The VPN was configured inside the Windows 7 Network and ____ Center.
Sharing
You run the ipconfig command on your computer, and it reports an IP address of 169.254.75.10 on the Ethernet interface. Which device assigned this IP address to the interface?
The local computer
What is authentication in the information security context?
The process of validating a user
Which of the following is a wireless Internet connectivity method that utilizes cellular technology?
3G
How many antennas can the 802.11ac standard support?
8
A client is requesting an Internet connection type that is not affected by atmospheric conditions and is always on. Which of the following will meet these requirements?
Cable
A group of wireless devices are using each other as relays to share a network connection across a large area.Which of the following network categories is being used?
WMN
Match the protocol or encryption name with the feature. A. WEP B. AES C. TKIP D. WPA2 E. WPA
- AES - Current encryption algorithm used today. - TKIP - Generates a different key for every transmission; however, the encryption algorithm used for its calculations is no longer considered secure. - WEP - No longer considered secure because the key used for encryption doesn't change. - WPA - Typically uses TKIP for encryption. - WPA2 - Typically uses AES for encryption.
Which of the following ports does the RADIUS protocol use?
1812
An 802.11g wireless connection operates in the frequency range of ____ Ghz.
2.4
Which of the following wireless network standards include MIMO?
802.11n
What is a MAC address?
A unique hardware ID
Your company is implementing a wireless network and is concerned that someone from a competing company could stand outside the building and collect wireless data. You have assured the company that WPA2 is secure. What makes WPA2 more secure than WPA?
AES
A technician wants to configure a DHCP server to guarantee that certain printers always receive the same address. Which of the following should the technician configure?
Address reservation
You have been approached by the network administrator of the company whose office is adjacent to yours. He has advised you to move your wireless router. What would be the reason for such a request? -Your signal is stronger than this -There is interference -His power is insufficient -All of these choices are reasonable
All of these choices are reasonable
What function does the TACACS protocol perform?
Authentication
Which of the following devices are most commonly used to connect a LAN to an ISP for broadband services? (Select TWO.)
Cable Modem and DSL Modem
The company where Derek works has tasked him with setting up and securing a SOHO router. He wants to make sure the wireless network is secure and that no unauthorized person can gain access to the network. What is the first step Derek should perform to secure the wireless router?
Change default user name and password.
A technician is configuring a new SOHO multifunction wireless router at a customer's location to provide network access to several wireless devices. The technician is required to protect the customer's private network from unauthorized access while performing the initial router setup as well as during normal operation after the configuration is completed. Which of the following is the best step for the technician to take in securing the router to meet this requirement?
Change the router's default administrative password.
What Option Would You Use To Set Up A VPN Connection?
Connect to a Workplace
The Network and Sharing Center is accessed through the
Control Panel
A client contacted you to request your help in researching and supplying the hardware necessary to implement a SOHO solution at his new home-based business. Which of the following SOHO router features will simplify IP address configuration on the private network for both wired and wireless clients?
DHCP server
You are setting up your Windows computer to connect to the Internet and notice that when you type www.microsoft.com, the browser does not go to the site. Instead, you receive an error message saying that the address cannot be resolved.What network setting should you check to see the address of the server being used to resolve this address?
DNS
Which of the following will use an RJ-11 connector for connectivity?
DSL
You have been tasked with configuring a SOHO network in which all ports on the public untrusted network will be forwarded to one workstation connected to the LAN. Which of the following features will you configure on the SOHO router to accomplish this task?
Demilitarized zone
Mary, a remote user, connects her Windows 10 laptop to the corporate network by way of the Internet using a VPN tunnel. Which of the following is often configured as a required step for a user each time she attempts to use the VPN connection?
Enter the same user name and password used on the corporate network.
Which of the following wireless networking protocols uses LTE technology with a maximum speed of up to 1 Gbps?
Fourth-generation cellular
A manager in a small office is asking if it is possible to limit network access to a particular website during business hours. Apparently, several users are spending an excessive amount of time on the site preventing them from completing their work-related tasks. Which of the following is the best solution to accomplish the request from the manager while not limiting access to other websites?
Implement a blacklist on the firewall and add the site the users are visiting.
As an IT technician, you arrive at a customer's home office to troubleshoot problems he's experiencing with his printer. While questioning the customer to get an understanding of his network, you find that he has a new Wi-Fi router that connects wirelessly to a new desktop and two new laptops, in addition to multiple smartphones, tablets, and the network printer. He also has several smart home devices, including security cameras, light switches, door locks, and a thermostat supported by an IoT controller hub. To work on the printer, which type of network will you be interacting with?
LAN
A friend of yours is having trouble getting good Internet service. He says his house is too remote for cable TV—he doesn't even have a telephone line to his house. He's also really frustrated with satellite service because cloudy skies or storms often disrupt the signal. You ask him what provider he uses for his cell phone. He says he has Verizon for his cell, which gets a good signal at his house. What Internet service will you recommend he look into getting for his home network?
LTE installed Internet
Jacob wants to set up extra security on his wireless network; he currently uses WPA2. He wants to allow only his devices to connect to the network and reject devices that he does not own. What extra wireless security should Jacob employ in on his wireless router?
MAC filtering
in 802.11n multiple antennas can be configured in a process called _______________.
MIMO
A small group of travelers is meeting inside an ancient building, and the travelers need access to the Internet using their mobile devices. However, the group is in an area where Wi-Fi Internet is not available and cellular coverage is intermittent. One of the travelers has an unlimited cellular data plan and a strong consistent signal. Which of the following methods would most likely be implemented to provide Internet service to the group?
Mobile hotspot
Cathy wants to connect to her wireless LAN at home but is not sure where to change the setting so that she can connect. Where in the Windows Control Panel will Cathy find her computer's network connection settings?
Network and Sharing Center
You need a VPN to connect to a private, remote network in order to access some files. You click the network icon in your taskbar to establish the connection, and realize there is no VPN option available on the menu. What tool do you need to use to fix this problem?
Network and Sharing Center
You have connected a cable Internet connection as shown in the exhibit. At what location should you place a filter?
No filters are required
George is concerned that his children might somehow be exposed to things on the Internet that they are not mature enough to handle. He wants a way to limit their ability to view content on the Internet. What will you recommend to George?
Use Parental Controls
A remote worker wants to connect his computer to his corporation's private trusted network over the Internet. Which of the following will need to be configured?
VPN Tunnel
You've just received a call from Human Resources asking for assistance with a problem. One of your company's employees, Renee, has recently undergone extensive surgery and will be homebound for 3-5 months. She plans on working from home and needs a solution to enable frequent and extended access to the company network's resources. Which WAN technology will you need to configure for Renee and which tool will you use to configure it?
VPN using the Network and Sharing Center
What is the correct order of network types when categorized by their size or the physical area they cover, from largest to smallest?
WAN, MAN, LAN, PAN
You are tasked with configuring a wireless SOHO router for a customer.Which of the following settings will be the most secure with the least effort and cost to the customer?
WPA2-PSK, AES
A corporate user is attempting to connect to the company's Windows domain server on the local network with her new laptop through a wired connection. Which of the following is required for the user to successfully sign in to the Windows domain?
Windows domain user name and password
Your company shares a building with a competitor's branch office. Recently, you noticed that some computers other than your company computers have tried to connect to the wireless network unsuccessfully. When you are in the parking lot, you also notice that the company's wireless network SSID can be seen on your smartphone.What can you do to make sure no one outside your company can gain access to its wireless network?
a. Disable SSID broadcasting. b. Lower radio power levels. d. Enable MAC filtering.
You have just installed a SOHO router in a customer's home and the owner has called to say his son is complaining that Internet gaming is too slow. His son is using a wireless laptop. Which possibilities should you consider to speed up the son's gaming experience? Select all that apply.
a. Verify that the wireless connection is using the fastest wireless standard the router supports. c. Suggest the son use a wired Gigabit Ethernet connection to the network. d. Enable QoS for the gaming applications on the router and on the son's computer.
Which of the following 802.11 wireless networking standards support transfer rates of over 54 Mbps? (Select TWO.)
b. 802.11ac e. 802.11n
Which of the following is a scenario in which an IT support technician would most likely be required to implement the alternate IP configuration method on a network host?
b. In the event a DHCP server is unavailable, the workstation will have a valid IP address on the subnet.
You have just finished installing a network adapter and booted up the system, installing the drivers. You open File Explorer on a remote computer and don't see the computer on which you installed the new NIC. What is the first thing you check? The second thing?
b. Is the computer using dynamic or static IP addressing? c. Do the lights on the adapter indicate it's functioning correctly?
SSIDs that are visible to wireless clients before configuration are _____.
broadcast
Your customer then asks you if it would be worth the investment for him to have Ethernet cabling installed to reach each of his workstations, instead of connecting them by Wi-Fi to his network. Specifically, he wants to know if that would speed up communications for the workstations. You examine his router and find that it's using 802.11ac Wi-Fi. Would you advise him to upgrade to Ethernet? Why or why not?
d. No, because 802.11ac speeds are faster than Ethernet.
Henry is troubleshooting a network connection and wants to see if he can connect to the server on his network.Which Microsoft command-line command should Henry use to check whether he can connect to the server?
ping
