2013 Latest MCTS 70-642 Exam Questions 111-115

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QUESTION 16
Your company has a main office and a branch office.
The network contains two DNS servers named DNS1 and DNS2.
DNS1 is located in the main office. DNS1 hosts a primary standard zone named contoso.com. The contoso.com zone is configured to use DNSSEC.
DNS2 is located in the branch office. DNS2 is a caching-only DNS server.
You need to ensure that client computers in the branch office can receive authoritative responses to queries for contoso.com if a WAN link fails. DNSSEC security must be maintained.
What should you configure on DNS2 for contoso.com? A. a conditional forwarder
B. a secondary zone
C. a zone delegation
D. an Active Directory-integrated stub zone
Correct Answer: B
Explanation/Reference:
Correct answer(s): B

QUESTION 17
Your network contains an Active Directory domain named contoso.com. The domain contains two sites named Site1 and Site2. The servers for the sites are configured as shown in the following table.
Server1 hosts a standard primary zone for contoso.com. Server2 hosts a secondary zone for contoso.com. You need to ensure that all DNS replication traffic between Server1 and Server2 is encrypted.
What should you do?
A. On Server1, configure DNSSEC for the contoso.com zone.
B. On Server1, convert the contoso.com zone to an Active Directory-integrated zone. C. On each server, create connection security rules.
D. On each server, enable Encrypting File System (EFS) encryption for the contoso.com.dns file.
Correct Answer: C
Explanation/Reference:
Correct answer(s): C

QUESTION 18
Your network contains a single Active Directory domain named contoso.com. The domain contains a DNS
server named Server1 that hosts the contoso.com zone.
The network is connected to the network of a partner company. The partner company’s network contains a
DNS server that hosts a zone named nwtraders.com.
You need to ensure that computers in contoso.com can resolve the names of computers in nwtraders.com. The solution must not require any changes to the zone configuration of nwtraders.com.
What should you configure on Server1? A. a conditional forwarder
B. a GlobalNames zone
C. a secondary zone
D. a zone delegation
Correct Answer: A
Explanation/Reference:
Correct answer(s): A

QUESTION 19
Your network contains an Active Directory forest. The forest contains three domain trees. Each domain tree contains multiple domains.
You have an Active Directory-integrated DNS zone.
You install a Web server named Web1. All of the users in the company will use Web1. You need to ensure that the users can access Web1 by using the URL http://web1. You want to achieve this goal by using the minimum amount of administrative effort.
What should you do?
A. Configure a GlobalNames zone and add a Host (A) resource record for Web1.
B. Create an Alias (CNAME) resource record for Web1 in the forest root domain zone. C. Create a reverse lookup zone and add an Alias (CNAME) resource record for Web1.
D. Create a Host Information (HINFO) resource record for Web1 in the forest root domain zone.
Correct Answer: B
Explanation/Reference: Correct answer(s): B Explanation:
Create an Alias (CNAME) resource record for Web1 in the forest root domain zone. Because the root zone is already AD-integrated
In GLOBALNAMES zone you only add alias (cname) records not host (A) records.

QUESTION 20
Your network contains an Active Directory forest. The forest contains two domains named contoso.com and nwtraders.com.
You have a DNS server named DNS1. DNS1 hosts Active Directory-integrated zones for contoso.com and nwtraders.com.
You discover that client computers in contoso.com cannot use single-label names to access servers in nwtraders.com.
You need to ensure that contoso.com computers can access nwtraders.com servers by using singlelabel names.
What should you modify?
A. the DNS suffix search order on DNS1
B. the DNS suffix search order on the client computers
C. the root hints servers on DNS1
D. the security settings of the nwtraders.com zone
Correct Answer: B
Explanation/Reference:
Correct answer(s): B

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