5.2.7
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Rasmussen College, Florida *
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CIS 2647C
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Information Systems
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Feb 20, 2024
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10
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218124, 4:23 PM g’f] @ i ; Individual Response Question 1. v Correct Drag the DNS term on the left to the appropriate definition on the right. (Each term may be used once, more than once, or not at all.) Uses the IP address to find the host name (or FQDN). { \ « Reverse lookup | z Client computers submit a DNS request to the DNS server and wait for a complete response. k[ v Recursion i The process by which a DNS server of host uses root name servers and subsequent servers to perform name resolution. v Recursion Uses the hostname (or the FQDN) to find the IP address. % \ v/ Forward lookup Keyboard Instructions Explanation https://Iabsimapp.testout.com/v6_0_585/index.htmt/productvi ewer/1197/5.2.7/6141617d-fe07-4ba1-9d4e-0489e6a07 bf2/outline?nonce=P5KCmai4XYXPjcO0UcCuou01J1xK1 WAuIUdMI4CIG4Y 2
2/8/24, 4:23 PM Individual Response Question 2. v Correct You manage the DNS servers for the eastsim.com domain. You have a domain controller named DC1 that holds an Active Directory-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. How can you configure the server to use the internet root name servers for name resolution? Create a stub zone for the root zone that points to the root servers. Configure a conditional forwarder to forward requests to the root servers. Change the eastsim.com domain to a primary standard zone. - () Delete the zone named . (dot) on DC1. Explanation In this scenario, DC1 has been configured with a root zone. The root zone is named . (dot). When the server has a root zone, it will not (and cannot) use root hints because it thinks that it is a root server. Deleting the root zone allows you to configure the root hints option. You will not be able to configure a stub zone or conditional forwarders for the root zone because the server has a primary copy of the root zone. https:/labsima pp.testout.com/v6_0_585/index. htmifproductviewer/1197/5.2.7/614617d-fe07-4ba’ _9d4e-0489e6a07bf2/outline ?nonce=P54Cmagi4XYXPjcOUcCuouO 1J1xK1 WauUdMI4CIG4AY
2/8/24, 4:23 PM Individual Response { { Question 3. v Correct Your company's internet namespace is westsim.com, and your company’s internal namespace is internal.westsim.com. Your network has two DNS servers, DNS1 and DNS2. DN51 is configured with a root zone and is authoritative for the internal.westsim.com domain. DNS2 is authoritative for the westsim.com domain. All client computers are members of the internal.westsim.com domain and are configured to use DNS1 as the primary DNS server. Client computers on your internal network cannot resolve internet DNS names. You verify that client computers can resolve internal DNS names successfully. You also verify that the internal DNS server is configured to forward all unresolvable DNS names to the company's internet DNS server. You must keep your internal network as secure as possible while making sure that all client computers can resolve internet DNS names successfully. | What should you do? S On DNS1, copy the Cache.dns file from the C DNS\Backup folder to the DNS folder. On an Active Directory domain controller, perform an authoritative restore of the root hints data. Then trigger the Update Server Data Files action on DN51. o -> () On DNS1, delete the . zone. On DNS2, copy the Cache.dns file from the DNS\Backup folder to the DNS folder. On DNS1, add root hints to internet root DNS servers. Explanation https:/Nlabsima pp.testout.Com/v6_0_585lindex.htmllproductviewer/ 1197/5.2.7/6141617d-fe07-4bal ~9d4e-0489e6a07bf2/outline?nonce=P5I4Cmqi4XYXchOUcCuouO1 JIxK1WAuiUdM4CiG4Y
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218124, 4:23 PM Individual Response | | Question 4. v Correct Your Active Directory network uses the internal DNS namespace private.westsim.com. Several other Active Directory domains also exist, which are children of the private.westsim.com domain. On the internet, your company uses westsim.com for its public domain name. Your company manages its own DN5 servers that are authoritative for the westsim.com zone. The private.westsim.com zone has been delegated to your company's Active Directory 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, DN5 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? (Select two. Each correct choice is part of the solution.) Delete root hints to internet DNS servers on all >[7] DNS servers that are authoritative for the private.westsim.com zone or any child zone. Create a forwarders list on all DNS servers that are authoritative for the westsim.com zone or L any child zone. Forward to DNS servers that are authoritative for the child zone. Configure root hints to internet DNS servers 0 on all DNS servers that are authoritative for the private.westsim.com zone or any child zone. hitps:/labsima pp.testout.comlv6_0*585lindex.htmllproductviewerl 1197/5.2.7/6141617d-fe07-4bal _9d4e-0489e6a07bf2/outline?nonce=P514CmgidXYXPjc0UcCuoul141xK1 WAUUdMI4CIG4AY 11
218124, 4:23 PM Individual Response Delete root hints to internet DNS servers on all (] DNS servers that are authoritative for the westsim.com zone. Create a forwarders list on all DNS servers that are authoritative for the private.westsim.com zone or any child zone. Forward to DNS servers that are authoritative for the parent zone. =[] Explanation ' To prevent private.westsim.com DNS servers from contacting internet DNS servers directly, delete root hints to internet servers on all DNS servers that are authoritative for the private.westsim.com zone or any child zone. Instead, forward all unresolved DNS requests to parent zone DNS servers. Requests that get forwarded to westsim.com DNS servers will not be related to the private namespace. Therefore, it is safe to configure root hints to internet DNS servers on these DNS servers. References 5.1.1 DNS - Record Types [) 5.1.2DNS Facts 5.1.10 DNS Server Properties Facts | 5.2.1 Conditional Forwarders and Stub Zones | @ 5.2.4 Name Resolution Facts 6 5.2.5 Configure Forwarders 5.3.1 Forward and Reverse Lookup Zones q__name__resolution_forward_()1__shc5.question.fex S— e S B — hitps:/labsima pp.testout.com/vé_0_585/index.htm Iproductviewer/1197/5.2.7/614{617d-fe07-4ba’ _0d4e-0489e6a07bf2/outline?nonce=P54CMgi4XYXPjc0UcCuouO1J1xK1 WauilUdMi4CiG4yY 12
218124, 4:23 PM Individual Response ( Question 5. v Correct " You are the systems administrator 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? - () Configure TulsaDNS to use forwarders. | o Configure network clients to use a DNS server located on the rest of the network. () Configure TulsaDNS with root hints. () Configure TulsaDNS as a caching-only server. Explanation https:/flabsima pp.testout.com/ve_0_585/index.htm Ifproductviewer/1197/5.2.7/6141617d-fe07-4ba’ -9d4e-0489e6a07bf2/outline?nonce=P5KCmai4XYXPjcOUcCuouO1d IxK1W4uiUdMi4 CiG4Y
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218124, 4:23 PM Individual Response Question 6. v Correct | Your company has an internet domain of westsim.com. Your internal network has three Active Directory 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 in addition to the SL-SRV1 westsim.local . name in DNS. % What should you do? ; On the SL-SRV1 server, edit the advanced TCP/IP properties of the server's local area . = (O connection. Add a connection-specific suffix of i support.westsim.local. Apply the changes and | then run ipconfig /registerdns. On the SL-SRV1 server, edit the TCP/IP properties of the server's local area () connection. Define an alternate configuration. Apply the changes and then run ipconfig /registerdns. Configure the SL-SRV1 server to use DHCP. Then configure the network's DHCP server(s) always to update A and PTR records of DHCP clients. https:/llabsimapp.testout.comlv6_0_585/index.htmllproductviewer/ 1197/5.2.7/6141617d-fe07-4bal -0d4e-0489e6a07bf2/outline?nonce=P514Cmai4X Y XPjc0UcCuouO141xK1 WauiUdMt4CiG4Y 15
218124, 4:23 PM Individual Response Question 7. v Correct Your company's internal namespace is westsim.local. This domain has two additional child domains named support.westsim.local and research.westsim.local. Due to security concerns, your company's internal network is not connected to the internet. Following are the DNS servers that you manage for your company: o Dns1, authoritative for . and westsim.local, IP address = 192.168.1.1 o Dns2, authoritative for support.westsim.local, IP address = 192.168.2.1 o Dns3, authoritative for research.westsim.local, IP address = 192.168.3.1 All internal DNS domains are Active Directory-integrated domains. You have configured Dns1 with appropriate delegation records for the child zones. How should you configure root hints for Dns2 and Dns3? Edit the Cache.dns file on Dns1. Delete all entries in the file. O _ Copy the Cache.dns file from Dns1 to Dns2 and © Dns3. In DNS Manager, edit the properties for Dns2 and Dns3. On the Root Hints tab, select the Copy from server option and specify 192.168.1.1 as the server to copy from. O In DNS Manager, edit the properties for Dns2 and Dns3. On the Root Hints tab, remove all default root hints entries and then add an entry for Dns1. - O https:/flabsima pp.testout.com/ve_0_585/index.htmi/productviewer/11 97/5.2.7/6141617d-fe07-4ba1-9d4e-0489e6a07bf2/outline?nonce=P514Cmgi4X Y XPjc0UcCuou01J1xK1 W4uUdM4CIG4Y 18
218124, 423 PM Individual Response { i Question 8. v Correct You are the administrator for the 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 on 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: o sales.corp.westsim.com . o corp.westsim.com o westsim.com You want to configure the solution with the least effort possible. What should you do? On the DNS tab, configure custom search ; () suffixes of sales.corp.westsim.com, ’\ corp.westsim.com, and westsim.com. On the DNS tab, configure custom DNS () suffixes for corp.westsim.com and westsim.com. On the DNS tab, configure a connection- specific DNS suffix of sales.corp.westsim.com. Select Append parent suffixes of the primary and connection-specific DNS suffixes. 50 On the DNS tab, select Append parent suffixes of the primary DNS suffix. Explanation https://labsima pp.testout.com/ve_0_585/index.htmi/productviewe 111197/5.2.7/6141617d-fe07-4ba1-9d4e-0489e6a07bf2/cutline?nonce= P5I4CMai4XYXPjcOUcCuouC1J1xK1W4uiUdMt4CiGAY 20
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218124, 4:23 PM Individual Response Question 9. v Correct You are the administrator for the 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 on the Srv2.sales.corp.westsim.com server. When a single label name is submitted for name resolution, you want the server to search using the following suffixes: o sales.corp.westsim.com o acct.corp.westsim.com o corp.westsim.com o westsim.com What should you do? On the DNS tab, enable Append parent suffixes of the primary DNS suffix. Configure < an additional custom suffix of acct.corp.westsim.com. Edit the DNS suffix search list policy to configure the custom search suffixes of - () sales.corp.westsim.com, acct.corp.westsim.com, corp.westsim.com, and westsim.com. Edit the DNS suffix search list policy to configure the custom search suffixes of acct.corp.westsim.com, corp.westsim.com, and westsim.com. hitps:/Nabsimapp.testout.com/vé_0_585/index.htm Ifproductviewer/1197/5.2.7/6141617d-fe07-4bal -9d4e-0489e6a07bf2loutine?nonce=P514Cmai4XYXPjcOUcCuouO1d XK 1WAuiUdM4CIG4Y