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202-450 Exam with Guarantee Updated 120 Questions
NEW QUESTION # 49
A company is transitioning to a new DNS domain name and wants to accept e-mail for both domains for all of its users on a Postfix server.
Which configuration option should be updated to accomplish this?
- A. mylocations
- B. mydomain
- C. myhosts
- D. mydomains
- E. mydestination
Answer: E
NEW QUESTION # 50
What is DNSSEC used for?
- A. Encrypting DNS queries and answers
- B. Cryptographic authentication of DNS zones
- C. Encrypted DNS queries between nameservers
- D. Authentication of the user that initiated the DNS query
- E. Secondary DNS queries for local zones
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION # 51
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 IPv6 prefixes that can be used for routing or further assignments.
- D. Assignments of blacklisted IPv6 addresses that should no longer be used.
- E. Assignments of anonymous IPv6 addresses whose assignment is not logged by the DHCPv6 server.
Answer: A,B,C
NEW QUESTION # 52
In order to join a file server to the Active Directory domain intra.example.com, the following smb.confhas been created:
The command net ads joinraises an error and the server is not joined to the domain. What should be done to successfully join the domain?
- A. Remove the winbind enum usersand winbind enum groupssince winbind is incompatible with Active Directory domains.
- B. Remove all idmapconfiguration stanzas since the id mapping is defined globally in an Active Directory domain and cannot be changed on a member server.
- C. Change server roleto ad member serverto join an Active Directory domain instead of an NT4 domain.
- D. Manually create a machine account in the Active Directory domain and specify the machine account's name with -Uwhen starting net ads join.
- E. Add realm = intra.example.comto the smb.confand change workgroupto the domain's netbios workgroup name.
Answer: B
NEW QUESTION # 53
Which of these tools provides DNS information in the following format?
- A. named-checkconf
- B. nslookup
- C. dig
- D. host
- E. named-checkzone
Answer: B
NEW QUESTION # 54
It has been discovered that the company mail server is configured as an open relay. Which of the following actions would help prevent the mail server from being used as an open relay while maintaining the possibility to receive company mails? (Choose two.)
- A. Configure Dovecot to support IMAP connectivity
- B. Upgrade the mailbox format from mbox to maildir
- C. Configure netfilter to not permit port 25 traffic on the public network
- D. Restrict Postfix to only relay outbound SMTP from the internal network
- E. Restrict Postfix to only accept e-mail for domains hosted on this server
Answer: C,D
Explanation:
Explanation/Reference:
NEW QUESTION # 55
In which CIFS share must printer drivers be placed to allow Point'n'Print driver deployment on Windows?
- A. conf pnpdrivers$
- B. winx64drv$
- C. The name of the share is specified in the option print driver share within each printable share in smb.
- D. print$
- E. NETLOGON
Answer: D
NEW QUESTION # 56
Using its standard configuration, how does fail2ban block offending SSH clients?
- A. By modifying and adjusting the SSHD configuration.
- B. By modifying and adjusting the TCP Wrapper configuration for SSHD.
- C. By creating and maintaining netfilter rules.
- D. By creating null routes that drop any answer packets sent to the client.
- E. By rejecting connections due to its role as a proxy in front of SSHD.
Answer: A
Explanation:
Explanation/Reference:
Reference: https://www.digitalocean.com/community/tutorials/how-to-protect-ssh-with-fail2ban-on-centos-7
NEW QUESTION # 57
Which of the following actions synchronizes UNIX passwords with the Samba passwords when the encrypted Samba password is changed using smbpasswd?
- A. Run netvamp regularly, to convert the passwords.
- B. Add smb unix password = sync to smb.conf
- C. There are no actions to accomplish this since is not possible.
- D. Add unix password sync = yes to smb.conf
- E. Run winbind -sync, to synchronize the passwords.
Answer: D
NEW QUESTION # 58
Which option within the ISC DHCPD configuration file defines the IPv4 DNS server address(es) to be sent to the DHCP clients?
- A. domain-name-servers
- B. domain-server
- C. name-server
- D. servers
Answer: A
NEW QUESTION # 59
A BIND server should be upgraded to use TSIG. Which configuration parameters should be added if the server should use the algorithm hmac-md5and the key skrKc4DoTzi/takIlPi7JZA==?
- A.
- B.
- C.
- D.
- E.
Answer: A
NEW QUESTION # 60
The following Apache HTTPD configuration has been set up to create a virtual host available at www.example.com and www2.example.com:
Even though Apache HTTPD correctly processed the configuration file, requests to both names are not handled correctly. What should be changed in order to ensure correct operations?
- A. The port mentioned in opening VirtualHosttag has to be appended to the ServerNamedeclaration's values.
- B. The configuration must be split into two VirtualHostsections since each virtual host may only have one name.
- C. Both virtual host names have to be placed as comma separated values in one ServerNamedeclaration.
- D. Only one Server name declaration may exist, but additional names can be declared in ServerAlias options.
- E. Both virtual host names have to be mentioned in the opening VirtualHosttag.
Answer: C
NEW QUESTION # 61
Which Apache HTTPD configuration directive is used to specify the method of authentication, e.g. Noneor Basic?
- A. AllowedAuthUser
- B. AuthType
- C. AuthUser
- D. AllowAuth
Answer: B
Explanation:
Explanation
Explanation/Reference: https://httpd.apache.org/docs/2.4/howto/auth.html
NEW QUESTION # 62
When using mod_authz_core, which of the following strings can be used as an argument to Require in an Apache HTTPD configuration file to specify the authentication provider?
(Choose three.)
- A. all
- B. method
- C. regex
- D. header
- E. expr
Answer: A,B,E
NEW QUESTION # 63
Given the following Squid configuration excerpt:
cache_dir ufs /var/spool/squid3/ 1024 16 256
Which of the following directories will exist directly within the directory /var/spool/squid3/? (Choose two.)
- A. FF
- B. A0
- C. 00
- D. 0F
- E. 0b
Answer: D,E
NEW QUESTION # 64
There is a restricted area in a site hosted by Apache HTTPD, which requires users to authenticate against the file /srv/www/security/site*passwd.
Which command is used to CHANGE the password of existing users, without losing data, when Basic authentication is being used?
- A. htpasswd -n /srv/www/security/site*passwd user
- B. htpasswd -D /srv/www/security/site*passwd user
- C. htpasswd /srv/www/security/site*passwd user
- D. htpasswd -c /srv/www/security/site*passwd user
Answer: D
NEW QUESTION # 65
Which of the following DNS record types is used for reverse DNS queries?
- A. REV
- B. CNAME
- C. RIN
- D. PTR
- E. IN
Answer: D
Explanation:
Explanation/Reference:
Reference: http://help.dnsmadeeasy.com/managed-dns/dns-record-types/ptr-record/
NEW QUESTION # 66
Which keyword is used in the Squid configuration to define networks and times used to limit access to the service?
- A. permit
- B. http_allow
- C. acl
- D. allow
Answer: C
Explanation:
Explanation
Explanation/Reference: https://www.tecmint.com/configure-squid-server-in-linux/
NEW QUESTION # 67
FILL BLANK
What configuration directive of the Apache HTTPD server defines where log files are stored? (Specify ONE of the directives without any other options.)
Answer:
Explanation:
ErrorLog
NEW QUESTION # 68
Which Linux user is used by vsftpd to perform file system operations for anonymous FTP users?
- A. The Linux user with the same user name that was used to anonymously log into the FTP server
- B. The Linux user specified in the configuration option ftp_username
- C. The Linux user that owns the root FTP directory served by vsftpd
- D. The Linux user which runs the vsftpd process
- E. The Linux user root, but vsftpd grants access to anonymous users only to globally read-
/writeable files
Answer: B
NEW QUESTION # 69
Which FTP names are recognized as anonymous users in vsftp when the option anonymous_enableis set to yes in the configuration files? (Choose two.)
- A. In the described configuration, any username which neither belongs to an existing user nor has another special meaning is treated as anonymous user.
- B. nobody
- C. anonymous
- D. ftp
- E. guest
Answer: C,D
Explanation:
Explanation/Reference:
Reference: http://vsftpd.beasts.org/vsftpd_conf.html#lbAE
NEW QUESTION # 70
What is the purpose of DANE?
- A. Allow secure dynamic DNS updates.
- B. Verify the integrity of name information retrieved via DNS.
- C. Provide a way to verify the association of X 509 certificates to DNS host names.
- D. Invalidate name information stored on caching name servers to speed up DNS updates.
- E. Discover which servers within a DNS domain offer a specific service.
Answer: C
Explanation:
Explanation/Reference: https://wiki.archlinux.org/index.php/DANE
NEW QUESTION # 71
When trying to reverse proxy a web server through Nginx, what keyword is missing from the following configuration sample?
- A. remote_proxy
- B. proxy_reverse
- C. proxy_pass
- D. forward_to
- E. reverse_proxy
Answer: C
NEW QUESTION # 72
When trying to reverse proxy a web server through Nginx, what keyword is missing from the following configuration sample?
- A. remote_proxy
- B. proxy_reverse
- C. proxy_pass
- D. forward_to
- E. reverse_proxy
Answer: C
NEW QUESTION # 73
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