Microsoft Microsoft Certifications 98-366 Questions & Answers

• Question 31:

  This question requires that you evaluate the underlined text to determine if it is correct.

  An Address Resolution Protocol (ARP) table is used to associate IP addresses with "host names".

  Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed" if the underlined text makes the statement correct.

  A. MAC addresses

  B. HomeGroup membership

  C. Preferred routers

  D. No change is needed

  Correct Answer: A

  Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol address (IP address) to a physical machine address (MAC address) that is recognized in the local network.

• Question 32:

  This question requires that you evaluate the underlined text to determine if it is correct.

  IPSec policies for two machines on a LAN can be modified by using the "IPSec policy snap-in" on Windows 7.

  Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed" if the underlined text makes the statement correct.

  A. Windows Firewall with Advanced Security snap-in

  B. LAN adapter properties

  C. Remote Access snap-in

  D. No change is needed

  Correct Answer: A

  Windows Firewall with Advanced Security is an advanced interface for IT professionals to use to configure both Windows Firewall and Internet Protocol security (IPsec) settings for the computers on their networks. Applies To: Windows 7, Windows Server 2008, Windows Server 2008 R2, Windows Vista Reference: Windows Firewall with Advanced Security and IPsec

• Question 33:

  This question requires that you evaluate the underlined text to determine if it is correct.

  According to the OSI model, encryption takes place on the "transport layer".

  Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed" if the underlined text makes the statement correct.

  A. Presentation

  B. Network

  C. Application

  D. No change is needed

  Correct Answer: A

  SSL or TLS encryption takes place at the presentation layer, Layer 6 of the OSI model.

• Question 34:

  Which protocol is responsible for automatically assigning IP addresses?

  A. HTTP

  B. DHCP

  C. DNS

  D. WINS

  Correct Answer: A

  Dynamic Host Configuration Protocol (DHCP) is a network protocol that enables a server to automatically assign an IP address to a computer from a defined range of numbers (i.e., a scope) configured for a given network.

• Question 35:

  What are two characteristics of a mesh network topology? (Choose two.)

  A. It is fault tolerant because of redundant connections.

  B. Every node connects to every other node on the network.

  C. It works best for networks with a large number of nodes.

  D. It requires less cabling than either a star or ring topology.

  Correct Answer: AB

  In a (full) mesh network topology, each of the network node, computer and other devices, are interconnected with one another. Every node not only sends its own signals but also relays data from other nodes. In fact a true mesh topology is the one where every node is connected to every other node in the network. This type of topology is very expensive as there are many redundant connections, thus it is not mostly used in computer networks. It is commonly used in wireless networks.

  Illustration:

  

• Question 36:

  What are two characteristics of the CSMA/CD access method? (Choose two.)

  A. It checks to see if a collision has been detected.

  B. It does a round robin search for requests to transmit from all nodes on the network.

  C. It signals its intent to transmit on the network.

  D. It waits until the transmission medium is idle.

  Correct Answer: AD

  Main procedure for the CSMA/CD:

  1.

  Is my frame ready for transmission? If yes, it goes on to the next point.

  2.

  Is medium idle? If not, wait until it becomes ready

  3.

  Start transmitting.

  4.

  Did a collision occur? If so, go to collision detected procedure.

  5.

  Reset retransmission counters and end frame transmission.

  Note:

  Carrier Sense Multiple Access With Collision Detection (CSMA/CD) is a media access control method used most notably in local area networking using early Ethernet technology. It uses a carrier sensing scheme in which a transmitting data

  station detects other signals while transmitting a frame, and stops transmitting that frame, transmits a jam signal, and then waits for a random time interval before trying to resend the frame.

• Question 37:

  You are helping a friend set up a public-facing web server for a home office.

  Your friend wants to protect the internal network from intrusion.

  What should you do?

  A. Set the web server in a perimeter network.

  B. Set the web server to block access on ports 80 and 443.

  C. Configure the firewall to block access on ports 80 and 443.

  D. Set the IP address of the web server to be within the LAN.

  Correct Answer: A

  In computer security, a DMZ or demilitarized zone (sometimes referred to as a perimeter network) is a physical or logical subnetwork that contains and exposes an organization's external-facing services to a larger and untrusted network, usually the Internet. The purpose of a DMZ is to add an additional layer of security to an organization's local area network (LAN); an external network node only has direct access to equipment in the DMZ, rather than any other part of the network.

• Question 38:

  This question requires that you evaluate the underlined text to determine if it is correct.

  To set lower security settings in Internet Explorer for an extranet site, add the site's URL to the "Local Intranet "zone.

  Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed" if the underlined text makes the statement correct.

  A. Internet

  B. Trusted Sites

  C. Extranet Sites

  D. No change is needed

  Correct Answer: B

  Trusted sites

  The level of security set for Trusted sites is applied to sites that you have specifically indicated to be ones that you trust not to damage your computer or information.

  Reference: Change Internet Explorer Security settings

• Question 39:

  This question requires that you evaluate the underlined text to determine if it is correct.

  In a wireless network that requires an SSL certificate, "WEP" handles the SSL certificate.

  Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed" if the underlined text makes the statement correct.

  A. 802.1X

  B. WPA2-PSK

  C. WPA-PSK

  D. No change is needed

  Correct Answer: A

  802.1x

  This deployment scenario requires server certificates for each NPS server that performs 802.1X authentication.

• Question 40:

  Which of these is a public address space?

  A. 192.168.0.0/16

  B. 197.16.0.0/12

  C. 10.0.0.0/8

  D. 172.16.0.0/12

  Correct Answer: B

  Incorrect:

  The private address space specified in RFC 1918 is defined by the following three address blocks:

  not A: 192.168.0.0/16

  The 192.168.0.0/16 private network can be interpreted either as a block of 256 class C network IDs or as a 16-bit assignable address space (16 host bits) that can be used for any subnetting scheme within the private organization. The

  192.168.0.0/16 private network allows the following range of valid IP addresses: 192.168.0.1 to 192.168.255.254.

  Not C:

  10.0.0.0/8

  The 10.0.0.0/8 private network is a class A network ID that allows the following range of valid IP addresses: 10.0.0.1 to 10.255.255.254. The 10.0.0.0/8 private network has 24 host bits that can be used for any subnetting scheme within the

  private organization.

  Not D:

  172.16.0.0/12

  The 172.16.0.0/12 private network can be interpreted either as a block of 16 class B network IDs or as a 20-bit assignable address space (20 host bits) that can be used for any subnetting scheme within the private organization. The

  172.16.0.0/12 private network allows the following range of valid IP addresses: 172.16.0.1 to 172.31.255.254.

  Reference: Technet, Public and Private Addresses