14 08 2018

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QUESTION 371
What is the purpose of DANE?

A. Verify the integrity of name information retrieved via DNS.
B. Allow secure dynamic DNS updates.
C. Invalidate name information stored on caching name servers to speed up DNS updates.
D. Discover which servers within a DNS domain offer a specific service.
E. Provide a way to verify the association of X 509 certificates to DNS host names.

Answer: E

QUESTION 372
A BIND server should be upgraded to use TSIG. Which configuration parameters should be added if the server should use the algorithm hmac-md5 and the key skrKc4DoTzi/takIlPi7JZA==?

A. Option A
B. Option B
C. Option C
D. Option D
E. Option E

Answer: C

QUESTION 373
Which option in named.conf specifies which host are permitted to ask for domain name information from the server?

A. allowed-hosts
B. accept-query
C. permit-query
D. allow-query
E. query-group

Answer: D

QUESTION 374
Which of the following actions are available in Sieve core filters? (Choose three.)

A. drop
B. discard
C. fileinto
D. relay
E. reject

Answer: CDE

QUESTION 375
Which of the following statements allow the logical combinations of conditions in Sieve filters? (Choose two.)

A. allof
B. anyof
C. noneof
D. and
E. or

Answer: AE

QUESTION 376
Which configuration parameter on a Postfix server modifies only the sender address and not the recipient address?

A. alias_maps
B. alias_rewrite_maps
C. sender_canonical_maps
D. sender_rewrite_maps

Answer: C

QUESTION 377
What is the name of the Dovecot configuration variable that specifies the location of user mail?

A. mbox
B. mail_location
C. user_dir
D. maildir
E. user_mail_dir

Answer: B

QUESTION 378
In the main Postfix configuration file, how are service definitions continued on the next line?

A. It isn’t possible. The service definition must fit on one line.
B. The initial line must end with a backslash character (\).
C. The following line must begin with a plus character (+).
D. The following line must begin with white space indentation.
E. The service definition continues on the following lines until all of the required fields are specified.

Answer: D

QUESTION 379
Which of the following commands displays an overview of the Postfix queue content to help identify remote sites that are causing excessive mail traffic?

A. mailtraf
B. queuequery
C. qshape
D. postmap
E. poststats

Answer: C

QUESTION 380
Which of these sets of entries does the following command return?

A. Entries that don’t have a cn of marie or don’t have a telephoneNumber that begins with 9.
B. Entries that have a cn of marie or don’t have a telephoneNumber beginning with 9.
C. Entries that have a cn of marie and a telephoneNumber that ending with 9.
D. Entries that don’t have a cn of marie and don’t have a telephoneNumber beginning with 9.
E. Entries that have a cn of marie or have a telephoneNumber beginning with 9.

Answer: C

QUESTION 381
Which of the following types of IPv6 address assignments does DHCPv6 support? (Choose three.)

A. Assignments of normal IPv6 addresses that can be renewed.
B. Assignments of temporary IPv6 addresses that cannot be renewed.
C. Assignments of blacklisted IPv6 addresses that should no longer be used.
D. Assignments of IPv6 prefixes that can be used for routing or further assignments.
E. Assignments of anonymous IPv6 addresses whose assignment is not logged by the DHCPv6 server.

Answer: ABD

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