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Networking Fundamentals > Lesson 13 > Flashcards

Lesson 13 Flashcards

1
Q

Broadband cable

A

A method of connecting to the Internet. It uses the same cable used by cable TV and splits the TV and Internet signals. The computer is connected to a cable modem to provide Internet access.

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2
Q

Dial-up

A

A method of connecting to the Internet. Dial-up uses regular phone lines and an analog modem. The modem modulates and demodulates the signals. Dial-up is also a method used for remote access servers where the user dials the remote access server instead of using a VPN.

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3
Q

Digital subscriber line (DSL)

A

A method of connecting to the Internet in urban areas using digital signals over standard telephone lines. Users must be relatively close to the telephone company’s central office. The central office can be as far away as 2 miles, but some equipment requires users to be closer.

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4
Q

Ethernet

A

A group of technologies used to connect networks using media such as twisted-pair and fiber-optic connections. Ethernet is defined by IEEE 802.3.

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5
Q

Integrated Services Digital Network (ISDN)

A

A group of standards used for transmission of voice, data, and video and can be used as a WAN link. ISDN is commonly bundled as a BRI with two B channels and one D channel or as a PRI with 23 B channels and one D channel.

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6
Q

Leased line

A

A WAN link circuited contracted through a communications provider for an organization’s use. The organization pays to lease the line instead of running an independent cable between two offices.

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7
Q

Remote access

A

A technology used to allow remote users to access private networks using either dial-up or VPN remote access servers.

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8
Q

T1

A

A data transmission line used for WAN links in the United States. A T1 includes 24 DS0 channels for a total of 1.544 Mbps. It is connected with Channel Service Unit/Data Service Unit (CSU/DSU) at each end. E1 lines are used in Europe, and they are 2.048 Mbps.

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9
Q

T3

A

A data transmission line used for WAN links similar to a T3. A T3 includes 28 DS1 channels for a total of 44.736 Mbps. E3 lines are used in Europe, and they are 34.368 Mbps.

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10
Q

Which of the following are valid tunneling protocols?

A

PPTP
SSTP
L2TP

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11
Q

What is the primary purpose of RADIUS?

A

Central authentication

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12
Q

What connection speed can be reached by using a T3 line?

A

44.74 Mbps

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13
Q

What is the basic unit of the T-carrier system?

A

DSO

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14
Q

Which of the following forms of DSL theoretically provides the fastest service?

A

VDSL

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15
Q

PRI, a form of ISDN, can provide transmission rates of up to ____.

A

1.544 Mbps

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16
Q

Which of the following methods can be used by small offices and home offices (SOHOs) for Internet access? (Choose all that apply.)

A

DSL
Dial-up
Broadband cable

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17
Q

How many B channels does an ISDN BRI use?

A

Two

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18
Q

What is the speed of a T1 link?

A

1.544 Mbps

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19
Q

Which of the following networks creates a private network and provides a secure tunnel across the Internet?

A

VPN

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20
Q

Which of the following T-carrier lines supports transmission speeds of up to 274.176 Mbps?

A

T4

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21
Q

Which of the following protocols uses an HTTP-over-SSL session between VPN clients and servers for exchanging encapsulated IPv4 or IPv6 packets?

A

SSTP

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22
Q

True or false. T1 and T3 lines are used in Europe.

A

False

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23
Q

What would you add to a Windows Server 2008 server to use it as a VPN server?

A

Routing and Remote Access Services

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24
Q

Which of the following connection methods requires the client to be close to the central office of a telephone company?

A

DSL

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25
Q

Which of the following systems provides a mechanism to load multiple voice and data channels into the digital line while connecting a T1 line to a LAN?

A

Multiplexer

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26
Q

Which of the following is a service contract between a provider and a customer, whereby the provider agrees to deliver a symmetric telecommunications line connecting two or more locations in exchange for a monthly rent?

A

Leased line

27
Q

What is the maximum upstream throughput speed supported by VDSL?

A

16 Mbps

28
Q

Sandra is setting up a home wireless network for a writer. She wants to choose a DSL connection. As she frequently uploads manuscripts to her publisher, she wants the fastest upload rate possible. Which DSLs would work?

A

HDSL

SDSL

29
Q

Which of the following networks allows users to use the Internet as a secure pipeline to their corporate local area networks (LANs)?

A

VPN

30
Q

Which of the following will you use for home-based telecommuters requiring intermittent connections over the Internet to the company’s internal network?

A

VPN

31
Q

Which of the following is defined as a telecommunication service used to transform an ordinary phone line into a high-speed medium for data, voice, and video transmission?

A

DSL

32
Q

Select the correct configuration of the two base types of ISDN service in the following figure.

A

64 kBPS
16 kBPS
2364 kBPS
64 kBPS

33
Q

What is the speed (data rate) of a dial-up connection over a standard dial-up analog line in the United States?

A

56 Kbps

34
Q

Which of the following technologies is used to permit a client computer to securely connect to a remote private network across the Internet?

A

VPN

35
Q

What are the advantages of an ISDN connection over a PSTN connection?

A

Provides end-to-end digital communications
Offers more bandwidth
Provides a faster connection

36
Q

You work as a Network Administrator for McNeil Inc. The company has a TCP/IP-based network. The company’s office has an ISDN connection. This connection is used to connect the network to the Internet. How many channels does an ISDN BRI connection use to send data?

A

2

37
Q

Drag and drop the appropriate E-Carrier systems in front of their respective data transfer rates.

A
  1. 048 Mbps: E1
  2. 448 Mbps: E2
  3. 368 Mbps: E3
  4. 264 Mbps: E4
  5. 148 Mbps: E5
38
Q

Your company decides to implement T1 on the network. The company’s network is configured as shown below. Mark the area where T1 will be implemented in the network map.

A

Mark to the left of the lightning bolt

39
Q

Which of the following connection mediums operates at a maximum speed of 128 Kbps?

A

ISDN

40
Q

Match the authentication methods used by Microsoft RAS servers with their usages.

A

Challenge Handshake Authentication Protocol: rovides encrypted authentication
The Challenge Handshake Authentication Protocol version 2: Provides mutual authentication
Extensible Authentication Protocol: Supports additional methods including Protected EAP (PEAP) and smart cards
Password Authentication Protocol: Passes the password across the wire in clear text

41
Q

Which of the following is a standardized multiplexing technology used for connecting fiber-optic transmission systems?

A

SONET

42
Q

Select the VPN tunneling protocols according to their attributes.

A

Can traverse NAT: PPTP
Cannot traverse NAT: L2TP
Can traverse NAT: SSTP

43
Q

Your client wants to choose a DSL connection with the fastest download rate possible. Which DSL would you recommend?

A

ADSL

44
Q

Andrew works as a Network Administrator for NetTech Inc. He wants to install an Internet connection having a data transmission rate of at least 10 Mbps at the headquarters facility. Which of the following types of connections will be most suitable?

A

T3

45
Q

Which of the following is a WAN carrier that uses 23 B channels and one D channel?

A

ISDN-PRI

46
Q

Which of the following is a type of Digital Subscriber Line (DSL) that provides 1.544 Mbps full-duplex transmission on a single twisted pair line?

A

SDSL

47
Q

Which of the following is a function of Windows Routing and Remote Access (RRAS) services?

A

To configure a VPN site-to-site connection

48
Q

How many channels does a T3 connection use?

A

672

49
Q

You work as a Network Administrator for On Dot Inc. The company has a Windows 2000-based network. You are asked to install Internet Security and Acceleration (ISA) Server 2000 on the network. This server will connect to the Internet through a T1 line. Which of the following components needs to be installed on the server to accomplish this?

A

External network adapter

50
Q

Which of the following technologies is not used to access the Internet through a broadband connection?

A

ISDN

POTS

51
Q

Which of the following is a function of ADSL?

A

To allocate more bandwidth for download traffic than for upload traffic

52
Q

You work as a Network Administrator for McRoberts Inc. The company has a TCP/IP-based network. The company has two offices within the city limits of Chicago. Both office networks are directly connected to the Internet. You are required to accomplish the following tasks:
•Users at either office location should be able to access the resources on both networks.
•Data traveling across the network should be secured.
You decide to establish a virtual private network (VPN) between the offices. Which of the assigned tasks will you be able to accomplish?

A

Both tasks will be accomplished.

53
Q

Which of the following are service levels for ISDN?

A

BRI (Basic Rate Interface)

PRI (Primary Rate Interface)

54
Q

Which network service below is used to provide authentication and authorization?

A

RADIUS

55
Q

What is the data transmission rate of a T3 line?

A

44.736 Mbps

56
Q

Drag and drop the appropriate VPN types in their respective placeholders.

A

Extranet: It connects computers at two sites of different organizations or corporate intranets.
Access VPN: It enables users to access corporate network resources from home or other location whenever required.
Intranet VPN: It connects computers at two sites of the same organization.

57
Q

Identifying DSL (Digital Subscriber Line) variations

A 
Asymmetric DSL
Symmetric DSL
ISDN DSL
Rate-Adaptive DSL
Very High-bit-rate DSL
High Bit Rate DSL
58
Q

Test remote access client connectivity.

A

Explanation: Here’s how to test remote access client connectivity:

  1. On the taskbar, in the notification area, click the Network icon, and click Open Network and Sharing Center.
  2. In the left pane, click Change Adapter Settings; a list of network connections appears.
  3. Right click Demo VPN and select Properties to open its properties.
  4. Click on the Networking tab, select Internet Protocol Version 4 (TCP/IPv4), and select Properties.
  5. Click Advanced to open Advanced TCP/IP Settings.
  6. Clear the Use default gateway on remote network option, and click OK; click OK to close the IPv4 properties window.
  7. Click OK to close the Demo VPN Properties window.
  8. Right-click Demo VPN and select Connect to establish the VPN connection.
  9. Type ucertifylabs as the user name, P@$$w0rd as the password, and click Connect; Demo VPN is connected.
  10. Close the window.
59
Q

Identifying WAN technology

A

DSL: A family of technologies that provides data transmissions over local telephone networks
T-carrier: A cabling and interface system designed to carry data at high speeds
ATM: A cell-based switching technology
FDDI: A standard for transmitting data on optical fiber cables
ISDN: A digital technology developed to combat the limitations of PSTN

60
Q

Configure RRAS as a NAT server

A
  1. Click Start > Administrative Tools to open the Administrative Tools window.
  2. In the list of tools, double-click Routing and Remote Access to open the Routing and Remote Access console.
  3. In the left pane, expand Routing and Remote Access, right-click WIN-UCSRV-01 and select Configure and Enable Routing and Remote Access to run the RRAS server setup wizard.
  4. Read the information and click Next to advance to the Configuration step.
  5. Select Network address translation to allow internal clients to connect to the Internet using one public IP address, and click Next to advance to the NAT Internet Connection step.
  6. Select Create a new demand-dial interface to the Internet to create a new demand-dial interface for client computers to connect to the Internet, and click Next to advance to the Network Selection step.
  7. Click Next to advance to the Read to Apply Selections step.
  8. Click Next to start the Routing and Remote Access service and then start the Demand-Dial Interface wizard.
  9. This wizard helps to create a demand-dial connection to connect this router to other routers; click Next to advance to the Interface Name step.
  10. Verify that “Remote Router” is given as the interface name, and click Next to advance to the Connection Type step.
  11. Verify that “Connect using virtual private networking” is selected, and click Next to advance to the VPN Type step.
  12. Verify that “Automatic selection” is selected, and click Next to advance to the Destination Address step.
  13. Type 192.168.1.100 as the IP address, and click Next to advance to the Protocols and Security step.
  14. Verify that “Route IP packets on this interface” is selected, and click Next to advance to the Dial-Out Credentials step.
  15. Type administrator as the user name, and click Next to complete the Demand-Dial Interface Wizard.
  16. Click Finish to create the interface and enable it on the router.
  17. Click Finish to close the wizard.
  18. Close all the windows.
61
Q

Configure the VPN server

A
  1. Click Start > Administrative Tools to open the Administrative Tools window.
  2. In the list of tools, double-click Routing and Remote Access to open the Routing and Remote Access console.
  3. In the left pane, expand Routing and Remote Access, right-click the WIN-UCSRV-01 (local) server and select Configure and Enable Routing and Remote Access to start the wizard.
  4. Click Next to advance to the Configuration step; select Virtual Private Network (VPN) access and NAT, and click Next to advance to the Custom Configuration step.
  5. Check the VPN access service to enable it on the server, and click Next to complete the Routing and Remote Access Server (RRAS) setup wizard.
  6. Click Finish; the RRAS service is ready to use; click Start Service to start the service.
  7. Close all the windows.
62
Q

Identifying T-carrier line transmission speeds

A

T1: 1.544 Mbps.
T2: 6.312 Mbps.
T3: Up to 44.736 Mbps.
T4: Up to 274.176 Mbps.

63
Q

Enabling routing and remote access services

A
  1. Click Start > Administrative Tools to open the Administrative Tools window.
  2. In the list of tools, double-click Routing and Remote Access to open the Routing and Remote Access console.
  3. In the left pane, expand Routing and Remote Access, right-click WIN-UCSRV-01 (local) and select Configure and Enable Routing and Remote Access to start its server setup wizard.
  4. The RRAS setup wizard appears; click Next to advance to the Configuration step.
  5. Select Custom Configuration to select any combination of the features available in Routing and Remote Access, and click Next to advance to the Custom Configuration step.
  6. Check the LAN routing service to enable it on the server and click Next to complete the RRAS setup wizard.
  7. Click Finish; the RRAS service is ready to use, click Start service to start the service.
  8. Close all the windows.
64
Q

Configuring NPS to provide RADIUS authentication

A
  1. Click Start > Administrative Tools, and then double-click Network Policy Server.
  2. From the Standard Configuration list, select RADIUS Server for Dial-Up or VPN Connections.
  3. Click Configure VPN or Dial-Up.
  4. Select Virtual Private Network (VPN) Connections, and click Next.
  5. Click Add to add remote VPN servers as RADIUS clients.
  6. In the Friendly name box, type ##secplusRAS.
  7. In the Address box, type 172.20.35.1 and click OK.
  8. Note that the ##secplusRAS RADIUS client is now displayed in the list; click Next.
  9. Check Extensible Authentication Protocol; “Microsoft: Protected EAP (PEAP)” appears in the Type list.
  10. Click Next four times to advance through the settings and display the Specify a Realm Name screen.
  11. In the Realm name box, type Outlander; click Next, and click Finish.
  12. In the console tree (in the left pane), expand RADIUS Clients and Servers.
  13. Select RADIUS Clients. Notice that your new RADIUS client is displayed in the main pane.
  14. Close all the windows.

Networking Fundamentals (21 decks)

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