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Homework answers / question archive / Knowledge Assessment Lesson 9 Multiple Choice Select one or more correct answers for each of the following questions

Knowledge Assessment Lesson 9 Multiple Choice Select one or more correct answers for each of the following questions

Computer Science

Knowledge Assessment Lesson 9

Multiple Choice

Select one or more correct answers for each of the following questions.

1)       Which of the following is the primary method for transmitting IPv6 traffic over an IPv4 network?

a.                     Subnetting

b.                     Tunneling

c.                     Supernetting

d.                     Contracting

 

2.       Which of the following is the IPv6 equivalent to a private IPv4 address?

a.       Link-local unicast address

b.       Global unique unicast address

c.        Unique local unicast address

d.       Anycast address

 

3.       Which of the following is an automatic tunneling protocol used by Windows operating systems that are located behind NAT routers?

a.       Teredo

b.       6to4

c.        ISATAP

d.       APIPA

 

4.       What kind of IP address must a system have to be visible from the Internet?

a.       Registered

b.       Binary

c.        Class B

d.       Subnetted

 

5.       What subnet mask would you use when configuring a TCP/IP client with an IPv4 address on the 172.16.32.0/19 network?

a.       255.224.0.0

b.       255.240.0.0

c.        255.255.224.0

d.       255.255.240.0

e.        255.255.255.240

6.       Which protocol is responsible for addressing packets at the data-link layer?

a.       Internet Protocol

b.       Transmission Control Protocol

c.        Ethernet

d.       CIDR

7.       Windows 8.1 computers can acquire IP addresses in which of the following ways? Select all that apply.

a.       APIPA

b.       Manual configuration

c.        DHCP

d.       TCP/IP

8.       Which of the following are true statements regarding IPv4 and IPv6 addressing? Select all that apply.

a.       IPv4 addresses are 32 bits in length.

b.       IPv4 addresses are 128 bits in length.

c.        IPv6 addresses are 128 bits in length.

d.       IPv4 and IPv6 support stateful and stateless configuration.

9.       Computers with link-local addresses, that do not have access to a DNS server, use which protocol?

a.       Link Local Name Resolution

b.       Link Local Multicast Name Resolution

c.        Link Local Unicast Name Resolution

d.       Link Local Anycast Name Resolution

10.     In which layer of the OSI model would packet acknowledgment, error correction, and flow control services typically be handled?

a.       Network layer

b.       Physical layer

c.        Transport layer

d.       Data-link layer

Best Answer

Choose the letter that corresponds to the best answer. More than one answer choice may achieve the goal. Select the BEST answer.

1.       A computer is currently experiencing connectivity problems. The network administrator is unsure whether the source of the problem is the local computer, the remote computer, or one of the routers between the two. Which tool would most likely provide the information needed to answer these questions and pinpoint the location of the problem?

a.       nslookup

b.       ping

c.        ipconfig

d.       tracert

2.       Two computers are configured to communicate on a local network segment 192.168.2.0/24. Computer A is currently assigned 192.168.2.17 and Computer B is assigned 192.168.2.22. A new administrator adds a third computer (Computer C) to the network and forgets to configure its IP address. If the DHCP server were temporarily unavailable, which of the following would most likely be the result?

a.       Computer C would be assigned an address automatically.

b.       Computer C would be assigned an APIPA address.

c.        Computer C would be assigned an APIPA address and not be able to communicate with the other two computers.

d.       Computer C would be assigned an APIPA address and not be able to communicate with the other two computers. Once the DHCP server came back online, all computers will be able to communicate.

3.       The network administrator is currently having problems connecting and gathering information from a Windows 8.1 computer using telnet. He wants to use telnet on a very limited basis. Which of the following would represent the best approach to solve this problem?

a.       Turn the Windows Firewall off on the target computer.

b.       Disable the Windows Firewall on the target computer temporarily.

c.        Configure the target computer’s Windows Firewall to allow traffic directed to port 23, 20, and 21.

d.       Configure the target computer’s Windows Firewall to allow traffic directed to port 23; complete the work and then block the port until he needs to connect at a late date/time.

4.       When troubleshooting computers and networks, it’s wise to use the OSI model as a guide. If a user is experiencing problems with resolving host names to IP addresses, which layer of the OSI model would you focus on to quickly resolve the problem?

a.       Data-link layer

b.       Physical layer

c.        Network layer

d.       Application layer

5.       A network administrator is trying to locate where packets are being delayed in transit. She uses the tracert command and receives the following information. Which of these hops would be the source of the delay?

a.       <100 ms      103 ms   <130 ms

b.       <210 ms      200 ms   <205 ms

c.        <250 ms      210 ms   <240 ms

d.       <375 ms      300 ms   <360 ms

Matching and Identification

1.       Complete the following exercise by matching the terms with their corresponding definitions.

           a.       ipconfig

           b.       IPv6

           c.        media access control address

           d.       network address translation

           e.        connectionless protocol

           f.        connection-oriented protocol

           g.        Transmission Control Protocol

           h.       Internet Protocol

           i.         packet switching network

           j.        Automatic Private IP Addressing (APIPA)

 

1.       Used to view the settings assigned to a DHCP-enabled client.

2.       Allows computers on networks without DHCP to communicate with each other when not assigned manual IP addresses.

3.       A protocol that does not perform error detection or correction.

4.       Uses 128-bit addresses.

5.       Protocol in which two system establish a connection before they transmit any data.

6.       A hardware address used at the data-link layer.

7.       Also referred to as a local area network.

8.       Feature built into routers; substitutes a registered address for the computer’s private address and then forwards to destination.

9.       A connectionless protocol found at the Network layer.

10.     A connection-oriented protocol found at the Transport layer.

Build a List

1.       In order of first to last, specify the correct order of steps to view connection status.

____ Open the Network and Sharing Center.

____ Click Close to close the Network Connection Details dialog box.

____ Click Close to close the Local Area Connection Status dialog box

____ Click Details. The Network Connection Details dialog box appears.

____ In the View your active networks section, click Ethernet or the name of the connection whose status you want to view.

2.       Specify the correct order of steps to configure IPv4 settings.

____ Click Change adapter settings.

____ Select Internet Protocol Version 4 (TCP/IPv4) and then click Properties.

____ Select the Use The Following DNS Server Addresses option and then enter appropriate values for the following parameters (preferred DNS Server, alternate DNS server.

____ Right-click the connection you want to manage and, from the context menu, select Properties.

____ Open the Network and Sharing Center.

____ Click OK to close the Internet Protocol Version 4 (TCP/IPv4) Properties sheet.

____ Select the Use The Following IP Address option and then enter appropriate values for IP address, subnet mask, and default gateway).

____ Click OK to close the connection’s Properties sheet.

3.       Specify the correct order of steps to configure Advanced Sharing settings.

____ Open the Network and Sharing Center.

____ Configure the following settings by selecting from the options provided (Network Discovery, Turn on automatic setup of network connected device, file/printer sharing, public folder sharing, media streaming, file sharing connections, password protected sharing, and HomeGroup connections).

____ Click Save Changes.

____ Click the down arrow for the network location whose settings you want to modify.

____ In the left pane, click Change advanced sharing settings. The Change sharing options for different network profiles dialog box appears.

Business Case Scenarios

Scenario 9-1: Using Port Numbers

           While you are installing an Internet web server on your company network, the owner of the company tells you that he also wants to build a web server for internal use by the company’s employees. This intranet web server will not contain confidential information, but it should not be accessible from the company’s Internet website. To do this, you create a second site on the web server. The Internet site uses the well-known port number for web servers, which is 80. For the intranet site, you select the port number 283. Assuming that the web server’s IP address on the internal network is 10.54.3.145, what should the users on the company network do to access the intranet website with Microsoft Internet Explorer?

       

Scenario 9-2: Configuring TCP/IP Clients

           Mark is setting up a small Ethernet network in his home by installing network adapters in three computers running Windows 8.1 and connecting them to a switch. Mark only uses one of the computers to access the Internet with a dial-up modem, but he wants to be able to access files and his printer from any one of the three systems. After he installs the network interface adapters, he notes that the default networking components have been installed on all three systems, and he sets about configuring their TCP/IP configuration parameters manually. Of the settings on the Internet Protocol Version 4 (TCP/IPv4) Properties sheet, which must Mark configure to provide the network connectivity he desires, and which can he leave blank?

       

 

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