Chapter 5 Questions

You're the network manager for the westsim.private domain. The SRV1 server runs all file and print services for the network. In the DNS database, it has an A record that maps srv1.westsim.private to the IP address of 192.168.16.10 You want to create a PTR record that maps the IP address to the hostname. What zone would you make the new record?

A.) 16.168.192.in-addr.arpa

You administer a branch office connected to the main headquarters with WAN link. Servers in the branch office provide DNS and DHCP services. The company network has multiple domains, with a single domain representing the branch office. A DNS server called DC1 at the branch office holds the primary zone for the branch domain but holds no other zone files. DNS servers at headquarters provide name resolution for hosts in other domains One day, you come to work to find a number of customer service complaints. They all report something similar. Clients can resolve local host names but cannot resolve host names for other domains on the network You contact the enterprise admin and are told the IP address for the DNS server was being used previously as a forwarder for the branch office has been changed to 10.155.11.15 What should you do to fix the problem?

A.) Configure DC1 to forward name resolution requests to 10.155.11.15

You are the systems admin for WestSim Corporation. You have been assigned to set up a new branch office in Tulsa. The branch will be represented by a single domain. You install a single DNS server called TulsaDNS and configure a primary zone for the branch office domain. You test name resolution and find that hosts can only resolve names for hosts within the domain. You need to enable clients in the Tulsa location to resolve names for hosts in other domains within your private network. You would like to minimize traffic across the WAN link between the sites. What should you do?

A.) Configure TulsaDNS to use forwarders

You are a network engineer working for WestSim Corporation. The company has an Internet domain named westsim.com. The private network uses the namespace of private.westsim.com. Your company manages its own DNS servers that are authoritative for both company's namespaces Your network consists of several subnets at multiple locations. Sites are connected with WAN links. www.private.westsim.com is an intranet Web server that is commonly used throughout the company. You want to ensure that users can always access this server by name, even if an authoritative DNS server isn't available. What should you do?

A.) Configure each client computer's HOSTS file with a entry for www.private.westsim.com

Mary is in charge of DNS administration for her network. The private network consists of a single AD domain called private.westsim.com. DNS data is stored in a AD-integrated zone. The Sales department has just installed a Web Server called SalesWeb. This server will host an intranet site for use by the Sales team. They want this server to be accessible by using the URL sales.westsim.com What should Mary do?

B) In the westsim.com domain, create a CNAME record called sales. Identify SalesWeb.private.westsim.com as the target

You manage a single private domain called westsim.private. All DNS servers run Windows Server 2012 R2. Client computers run Windows 8 and are members of the westsim.private domain. Client computers have NetBT disabled and use only DNS for name resolution. You have a group of computers that use only NetBIOS names and don't use DNS. Your network doesn't have a WINS server. You need to enable all Vista client computers to resolve host names for the NetBIOS computers. What should you do?

B.) Configure a GlobalNames zone. Create records in the zone for all NetBIOS computers

You're the network admin for a company that has just implemented Server 2012 R2. To provide Internet access for your corporate office, you have decided to use a firewall that provides NAT. On the private network, you install and configure DNS on a Windows Server 2012 R2 server to provide name resolution. After you finish the configuration, you realize that no one is able to access the Internet, but they are able to contact internal servers by their FQDN. A ping test using the IP address of Internet hosts is successful. You decide to check the forwarders setting on the DNS server, but the option to configure forwarders is grayed out. What should you do?

B.) Delete the root forward lookup zone on the internal DNS server

You manage a company network with a single AD domain running on two domain controllers. The two domain controllers are also DNS servers, and hold an AD integrated copy of the zone used on the private network. The network has five subnets, with DHCP servers delivering IP address and other configuration to host computers. All host computers run Windows 7. You want to ensure that all client computers use the DNS server for DNS hostname resolution. Hosts should not be able to automatically discover DNS hostnames, even for computers on their own subnet What should you do?

B.) Edit the default domain group policy object (GPO). Enable the Turn Off Multicast Name Resolution policy

You manage the branch office for your company network. The branch office has a single AD domain, branch1.westsim.private. All computers in the branch office are members of the domain. All client computers run Windows 7, and run only IPv6 The branch office consists of two subnets and 50 host computers. Each subnet has its own DHCP server, with a single server on Subnet is both the domain controller and DNS server. Dynanmic updates are enabled on the DNS zone. On Subnet1, you have a shared printer attached to Wrk5. Only computers on Subnet1 use this shared printer. You want to make sure that all hosts on Subnet1 can continue to connect to the shared printer by name, even if the DNS server is unavailable. What should you do?

B.) On each client on Subnet1, make sure that LLMNR is enabled.

You're the admin for corp.westsim.com domain. The network has two child domains, acct.corp.westsim.com and sales.corp.westsim.com. You need to configure DNS name resolution properties in the Srv2.sales.corp.westsim.com server. When an unqualified name is submitted for name resolution, you want the server to search using the following suffixes: -sales.corp.westsim.com -corp.westsim.com -westsim.com You want to configure the solution with the least amount of effort possible. What should you do?

B.) On the DNS tab, select Append parent suffixes of the primary DNS suffix

You manage the branch office for your company network. The branch office has a single AD domain, branch1.westsim.private. All computers in the branch office are members of the domain. All client computers run Windows 7. This branch office consists of two subnets and 50 host computers. Each subnet has its own DHCP server, while a single server on Subnet2 is both the domain controller and DNS server. Dynamic updates are enable on the DNS zone. On Subnet1, you have a shared printer attached to Wrk5. Computers on both Subnet1 and Subnet2 use this shared printer. You want to make sure that all hosts on Subnet1 can continue to connect to the shared printer by name, even if the DNS server is unavailable. You need to accomplish this with the least amount of effort possible. What should you do?

B.) Use LLMNR for clients on Subnet1, and a static HOSTS file entry for clients on Subnet2

You're a systems admin for WestSim corporation. As part of a new security initiative, the IT department has developed a custom application that reports the host name of all clients that try to access three sensitive servers in the Accounting department. The application has been working fine for the last 3 months The company expands and adds a new building with a LAN connection to the rest of the network. This building has its own subnet, 192.168.5.0. You create a scope on an existing DHCP server for this subnet. During a random check of the reporting software, you discover that the application reports only the IP address but not the host name for clients on the new subnet. What should you do?

C.) Create a primary reverse lookup zone for subnet 192.168.5.0

You manage the branch office for your company network. The branch office consists of two subnets and 10 host computers. You use static addressing for all hosts on both subnets. To provide name resolution between subnets, you configure static entries on each computer As the network grows, you decide to implement dynamic services. You configure a Windows Server 2012 R2 server as DHCP and DNS server. You configure a DNS zone and two DHCP scopes. You configure DHCP options on the DHCP server to deliver the IP address of the DNS server to all hosts. You configure each client to get IP address and DNS server info from the DHCP server. You need to configure each client so that it no longer uses static entries for name resolution. What should you do?

C.) Delete the HOSTS file on each client

You manage the DNS servers for the eastsim.com domain. You have a domain controller named DC! that holds an AD-integrated zone for the eastsim.com zone. You would like to configure DC1 to use forwarders and root name servers to resolve all DNS name requests for unknown zones. You edit the DNS server properties for DC1. On the forwarders tab, you find that the Use Root Hints If No Forwarders Are Available option is disabled. You also find that the entire root hints tab is disabled, and you are unable to add any root hint servers. You need to configure the server to use Internet root name servers for name resolution. What should you do?

C.) Delete the zone named . on DC1

You're setting up a new network in a single domain named eastsim.com. All servers run Windows Server 2012 R2, and all clients run Windows 8. You install a DHCP server and configure it with a scope for the single subnet. You install a DNS server with a primary zone for the domain. You want to use dynamic updates to update DNS records in the zone automatically. What should you do?

C.) Enable dynamic updates on the eastsim.com zone

The serial number contained within the Start of Authority (SOA) record for a DNS zone on the primary server has been incremented What condition does this indicate?

C.) Information within the DNS zone has been changed and secondary servers should initiate a zone transfer.

Emma is a systems admin for WestSim Corporation. The network has multiple domains with DNS and DHCP services configured in each domain. All servers are running Server 2012 R2 and all clients are running Windows 8. All hosts are members of the acct.westsim.com domain, the records of which are stored in a primary zone. As part of a new security initiative, the IT department has developed a custom application that reports the host name of each client that tries to access three sensitive servers in the Accounting department. Emma has been asked to test the new application During a test, Emma finds that the program isn't reporting the host names for some clients, even though it properly records their IP addresses. Emma realizes that the custom application submits reverse lookup requests to the DNS server to discover the host name for the specified IP address. She also realizes that the clients whose host names could not be notified have manually configured static IP addresses on subnet 192.168.3.0, using a default subnet mask What should Emma do?

C.) Manually create a PTR record in the 3.168.192.in-addr.arpa zone for each host

Directory domains also exist, which are children to the private.westsim.com domain. On the Internet, your company uses westsim.com for its public domain name. Your company manages its own DNS servers that are authoritative for the westsim.com zone. The private.westsim.com zone has been delegated to your company's AD domain controllers, which are also DNS servers. Computers that are members of the private.westsim.com domain and all child domains must be able to resolve DNS names of Internet resources. However, to help secure your network, DNS queries for resources in the private.westsim.com domain and all child domains must never be sent to Internet DNS servers. Queries for Internet names must go first to your public DNS server that is authoritative for the westsim.com domain. You need to configure your company's DNS servers to meet these requirements. What should you do? (Pick 2)

C.) On all DNS servers that authoritative for the private.westsim.com zone or any child zone, create a forwarders list. Forward to DNS servers that are authoritative for the parent zone AND D.) Delete root hints to Internet DNS servers on all DNS servers that are authoritative for the private.westsim.com zone or any child zone

Your network has a single domain named southsim.com. All clients computers run Windows 7 or Windows 8 DNS data for the domain is stored on the following servers: -DNS1 holds the primary zone for southsim.com -DNS2 and DNS3 hold secondary zones for southsim.com All three DNS servers are located on domain controllers. The DNS zone for the domain is configured to allow dynamic updates. You want to allow client computers to send DNS updates to any of the three servers, and allow any of the three servers to update DNS records in the zone What should you do?

C.) On all three servers, change the zone type of the DNS zone to AD integrated

You manage the intranet servers for EastSim Corporation. The company network has three domains: eastsim.com, asiapac.eastsim.com and emea.eastsim.com The main company Web site runs on the web1.eastsim.com server with a public IP address of 101.12.155.99. A host record for the server already exists in the eastsim.com zone You want Internet users to be able to use the URL http://www.eastsim.com to reach the web site What type of DNS record should you create?

CNAME

You're the network admin for your company's network. Your network consists of 8 Windows Server 2012 R2 computers, 500 Windows 7 client computers, and 5 UNIX servers. One of your Windows Server 2012 R2 computers is your DNS server. The DNS zone is configured as an AD-integrated zone. The DNS zone is also configured to allow dynamic updates Users report that they can access the Windows 7 computers by host name, they can't access the UNIX servers by host name What should you do?

D.) Manually enter A (host) records for the UNIX servers in the zone database

You manage a small network with Windows 8 clients, multiple subnets, and servers. You want your computer to be able to resolve a host name for a server on your network to its IPv4 address. What should you do? (Pick 2)

D.) Add an A record on the DNS server. AND E.) Edit the Hosts file on the computer

You're the admin for corp.westsim.com domain. The network has two child domains, acct.corp.westsim.com and sales.corp.westsim.com. You need to configure DNS name resolution properties in the Srv2.sales.corp.westsim.com server. When an unqualified name is submitted for name resolution, you want the server to search using the following suffixes: -sales.corp.westsim.com -acct.corp.westsim.com -corp.westsim.com -westsim.com What should you do?

D.) On the DNS tab, configure search suffixes of sales.corp.westsim.com, acct.corp.westsim.com, corp.westsim.com, and westsim.com

Your company has an Internet domain of westsim.com. Your internal network has three AD domains named westsim.local, support.westsim.local, and research.westsim.local You install a server named SL-SRV1 as a member of the westsim.local domain. You configure SL-SRV1 with a static IP address of 192.168.0.23. You configure the server to dynamically register its DNS name Clients in the support.westsim.local domain need to access the SL-SRV1 server. Some users in the support.westsim.local domain are accustomed to using the support.westsim.local suffix when accessing network resources. To accommodate these users, you want to dynamically register the name SL-SRV1.support.westsim.local name in addition to the SL-SRV1.westsim.local name in DNS. What should you do?

E.) On the SL-SRV1 server, edit the advanced TCP/IP properties of the server's local area connection. Add a connection-specific suffix of support.westsim.local. Apply the changes, then run Ipconfig /registerdns

You're the network engineer for your company. Your private network uses namespace private.westsim.com. All servers run Server 2012 R2. All client computers run Windows 8.1

On your computer, run ipconfig /flushdns

You have a computer that runs Windows 7 connected to a domain network. After configuring the static address of an internal web server named WEB3, your computer can no longer connect to WEB3, However, other users are still able to connect to the same Web server. You need to be able to connect to the website on the WEB3 server.

Run ipconfig /flushdns