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Exam Prep Questions

  1. Which OSI layer is responsible for translating logical network address and names, such as computer names, to their MAC addresses and for addressing and routing data packets over the network?

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    A.

    Transport layer

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    B.

    Physical layer

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    C.

    Network layer

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    D.

    Data Link layer

  2. You are the network administrator for Contoso Ltd. There is a single Active Directory domain called contoso.com. All servers in the domain are running Microsoft Windows Server 2003. Client computers are running Microsoft Windows XP Professional.

    The company has a head office and a branch office. The offices are connected via a T1 link. There is a router in each office.

    You need to implement a DHCP solution to provide dynamic IP addressing to DHCP clients in both offices. The solution must minimize network traffic on the WAN connection. There should not be a single point of failure in the DHCP infrastructure. What should you do?

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    A.

    Place two DHCP servers in the head office and place them in a cluster configuration. Configure the router in the branch office as a DHCP Relay Agent.

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    B.

    Place two DHCP servers in each office. Configure each set of DHCP servers in a cluster configuration.

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    C.

    Place two DHCP servers in the head office and place them in a cluster configuration. Configure a computer in the branch office as a DHCP Relay Agent.

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    D.

    Place two DHCP servers in the head office. Distribute the scopes for both offices across both servers using the 80/20 rule. Configure a computer in the branch office as a DHCP Relay Agent.

  3. How is the division point between the network ID and the host ID of an IP address calculated?

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    A.

    The Internet Engineering Task Force (IETF) sets the standard for calculating the division point.

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    B.

    The Least Significant Bit (LSB) is used.

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    C.

    The Most Significant Bit (MSB) is used.

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    D.

    A subnet mask is used.

  4. You are the network administrator for your company. Servers are running Microsoft Windows Server 2003. Client computers have been upgraded to Windows XP Professional.

    You are planning the subnet configuration for the network. The network currently needs to support 12 subnets. This number is expected to reach 16 within the next year. You need to choose a subnet mask that supports this configuration. What should you do?

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    A.

    Use a subnet mask of 255.255.255.192.

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    B.

    Use a subnet mask of 255.255.255.224.

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    C.

    Use a subnet mask of 255.255.255.240.

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    D.

    Use a subnet mask of 255.255.255.248

  5. Which routing protocols support Classless Inter-Domain Routing (CIDR)? (Choose two.)

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    A.

    RIP version 2

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    B.

    Open Shortest Path First (OSPF)

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    C.

    RIP version 1

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    D.

    Exterior Gateway Protocol

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    E.

    Interior Gateway Protocol

  6. You are the network administrator for Contoso Ltd. The network consists of multiple subnets connected by routers.

    You have finished installing a Windows Server 2003 DHCP server. You create the necessary scopes and configure the 003 router option to assign all clients the IP address of their local router. All clients successfully lease an IP address. However, you discover that users on Subnet A are the only ones capable of communicating outside their local subnet. What could be causing the problem?

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    A.

    All the scopes have not yet been activated.

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    B.

    The DHCP option is configured at the server level.

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    C.

    The DHCP server has not yet been authorized.

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    D.

    The 003 router option must first be activated.

  7. Given the Class C IPv4 address range of 192.199.199.0, can you use a subnet mask of 255.255.255.240 and create at least 17 subnetworks with at least 13 hosts per subnet?

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    A.

    Yes, you can use a subnet mask of 255.255.255.240 and create at least 17 subnetworks with at least 13 hosts per subnet.

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    B.

    No, the subnet mask of 255.255.255.240 is invalid for the Class C version 4 IP address ranges.

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    C.

    192.199.199.0 is not a Class C address range.

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    D.

    No, there would be fewer than 13 hosts per subnet.

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    E.

    No, there would be fewer than 17 subnetworks.

  8. You are the network administrator for your company. All servers are running Microsoft Windows Server 2003. Client computers are running Microsoft Windows 95 and Microsoft Windows 2000 Professional.

    To improve accuracy on several WINS servers while conserving available bandwidth, you have decided to replicate WINS servers only at night. Which type of WINS replication can only be configured for an interval?

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    A.

    Push/Pull

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    B.

    Push

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    C.

    Pull

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    D.

    Pull/Push

  9. Maximum Transmission Units (MTUs) are based on the type of network that is installed. What is the MTU of ethernet networks?

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    A.

    1,460 bytes

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    B.

    1,500 bytes

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    C.

    4,464 bytes

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    D.

    17,914 bytes

  10. You are the network administrator for Contoso Ltd. The company has upgraded existing servers to Microsoft Windows Server 2003.

    Contoso.com is now considering a name for their DNS structure on the inside of their firewall. The main goal is maximum security, even if new training for users is required. Which of these names should you use?

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    A.

    contoso.com

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    B.

    contoso.com.ad

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    C.

    ad.contoso.com

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    D.

    newname.ad

  11. How do you configure clients to use APIPA addressing?

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    A.

    APIPA addressing needs to be set manually in the Registry.

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    B.

    The client needs to be configured to obtain an IP address automatically.

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    C.

    The client needs to have the APIPA option selected in the IP Properties dialog box.

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    D.

    The DHCP server needs to have an APIPA scope configured and authorized.

  12. You are the network administrator of a Windows Server 2003 network. You have decided to implement a DNS solution for your network, including a small remote office.

    The remote office does not have its own domain controller. Your main goal is to minimize all replication and zone transfer traffic on the slow link between your home office and the remote office. Which type of DNS server should you use in the remote office?

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    A.

    Active Directory Integrated

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    B.

    Secondary

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    C.

    Primary

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    D.

    Caching-Only

  13. You are the network administrator for your company. All servers are running Microsoft Windows Server 2003. The network consists of multiple subnets. Routers cannot forward the DHCPDISCOVER broadcast messages. You install the DHCP service on a single server. You are testing the configuration from a Windows XP computer on a different subnet.

    The computer fails to obtain an IP address from the DHCP server. The client computer configures itself with an APIPA address. What can be done to correct this problem? (Choose three.)

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    A.

    Install an RFC 1452–compliant router

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    B.

    Install an RFC 1542–compliant router

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    C.

    Install DHCP Relay Agent on the client subnet

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    D.

    Install a local DHCP server

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    E.

    Install a DHCP Relay Agent on the DHCP server

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    F.

    Install a DHCP Relay Agent on the DHCP server subnet

  14. You are the network administrator for the Contoso Ltd. All servers are running Microsoft Windows Server 2003. Contoso has seven offices located in different parts of the United States. The central office hosts the primary DNS server. All branch office locations have their own DNS servers configured as secondary servers.

    The offices are currently connected by slow WAN links, with no plans to upgrade them. The annual budget allows for the addition of a second DNS server at each of the locations. However, you do not want any more traffic generated from zone transfers on the WAN or the local networks. What should you do?

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    A.

    Configure the new servers as Standard primary DNS servers

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    B.

    Configure the new servers as Standard secondary DNS servers

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    C.

    Configure the new servers as Master name servers

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    D.

    Configure the new servers as Caching-only servers

  15. What type of DNS resolution involves a query made from a client to a DNS server, and the server returns the best answer it can provide based on its local cache or stored zone data?

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    A.

    Recursive query

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    B.

    Iterative query

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    C.

    Forward query

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    D.

    Cache query

  16. You are a network administrator for your company. Servers are running Microsoft Windows Server 2003 and UNIX. Client computers are running Microsoft Windows XP Professional. The Domain Name System (DNS) server for the network is running UNIX and the most recent version of BIND. The BIND server called DNS01 is a primary server for the internal DNS domain named contoso.com.

    You run the Active Directory Installation Wizard (dcpromo.exe) on a server named SRV01 to create an Active Directory domain named ad.contoso.com for the network. You allow the wizard to install and configure DNS on the server with default settings.

    On DNS01, you delegate the subdomain ad.contoso.com to SRV01. You plan to configure DNS01 as a secondary server for ad.contoso.com. You need to ensure that SRV01 can communicate with DNS01. Your solution must ensure that the servers communicate as efficiently as possible. What should you do?

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    A.

    Disable the BIND secondaries option on SRV01

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    B.

    Configure ad.contoso.com to use dynamic updates instead of secure dynamic updates

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    C.

    Convert the new DNS zone from Active-Directory Integrated to a primary zone

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    D.

    Create a stub zone for contoso.com on SRV01

  17. What are some of the benefits of caching-only DNS servers? (Choose three.)

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    A.

    Local sites that use them do not use WAN bandwidth for DNS resolutions.

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    B.

    They hold a read/write copy of the DNS database on the local site.

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    C.

    Replication is configurable for off hours, thus limiting the impact of zone transfer traffic.

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    D.

    They do not produce any zone transfer traffic.

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    E.

    They reduce traffic across a WAN because they attempt to locate information in their cache to resolve local client requests.

  18. When clients dynamically update their own DNS records, what type of host record registration failures can occur?

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    A.

    Incorrect parent DNS suffix listed

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    B.

    Incorrect DNS suffix list entry appended

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    C.

    Incorrect secondary DNS suffix listed

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    D.

    Incorrect primary DNS suffix listed

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