Lpi 202-450 Online Practice Questions and Exam Preparation

Lpi 202-450 Online Questions & Answers

• Question 21:

  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
  C. qshape

• Question 22:

  Which Apache HTTPD configuration directive is used to specify the method of authentication, e.g. None or Basic?

  A. AuthUser
  B. AllowedAuthUser
  C. AuthType
  D. AllowAuth
  C. AuthType

• Question 23:

  What is a significant difference between host and zone keys generated by dnssec-keygen?

  A. There is no difference.
  B. Both zone key files ( .key/.private ) contain a public and private key.
  C. Both host keys files ( .key/. private) contain a public and private key.
  D. Host Keys must always be generated if DNSSEC is used; zone keys are optional
  E. Zone Keys must always be generated if is used; host keys are optional
  B. Both zone key files ( .key/.private ) contain a public and private key.

• Question 24:

  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.
  E. Provide a way to verify the association of X 509 certificates to DNS host names.

• Question 25:

  Which of the following statements are true regarding Server Name Indication (SNI)? (Choose two.)

  A. It supports transparent failover of TLS sessions from one web server to another.
  B. It allows multiple SSL/TLS secured virtual HTTP hosts to coexist on the same IP address.
  C. It enables HTTP servers to update the DNS of their virtual hosts' names using the X 509 certificates of the virtual hosts.
  D. It provides a list of available virtual hosts to the client during the TLS handshake.
  E. It submits the host name of the requested URL during the TLS handshake.
  B. It allows multiple SSL/TLS secured virtual HTTP hosts to coexist on the same IP address.
  E. It submits the host name of the requested URL during the TLS handshake.

• Question 26:

  Considering the following kernel IP routing table now, which of the following commands must be remove the route to the network 10.10.1.0/24?

  

  Kernel IP routing table

  A. routedel 10.10.1.0
  B. routedel 10.10.1.0/24
  C. routedel -net 10.10.1.0/24
  D. routedel 10.10.1.0/24 gw 192.168.246.11
  E. routedel -net 10.10.1.0
  C. routedel -net 10.10.1.0/24

• Question 27:

  When the default policy for the netfilter INPUT chain is set to DROP, why should a rule allowing traffic to localhost exist?

  A. All traffic to localhost must always be allowed.
  B. It doesn't matter; netfilter never affects packets addressed to localhost.
  C. Some applications use the localhost interface to communicate with other applications.
  D. syslogd receives messages on localhost.
  C. Some applications use the localhost interface to communicate with other applications.

• Question 28:

  Which of the following lines in the Apache configuration file would allow only clients with a valid certificate to access the website?

  A. SSLCA conf/ca.crt
  B. AuthType ssl
  C. IfModule libexec/ssl.c
  D. SSLRequire
  E. SSLVerifyClient require
  E. SSLVerifyClient require

• Question 29:

  In a PAM configuration file, a sufficient control allows access:

  A. Immediately on success, if no previous required or requisite control failed
  B. Immediately on success, regardless of other controls
  C. After waiting if all other controls return success
  D. Immediately, but only if the user is root
  A. Immediately on success, if no previous required or requisite control failed

• Question 30:

  Which command line create an SSH tunnel for POP and SMTP protocols?

  A. ssh- L :110 -L :25 -1 user -N mailhost
  B. ssh -L 25:110 -1 user -N mailhost
  C. ssh -L mailhost:110 -L mailhost:25 -1 user -N mailhost
  D. ssh -L mailhost:25:110 -1 user
  E. ssh -L 110:mailhost:110 -L 25:mailhost:25 -1 user -N mailhost
  E. ssh -L 110:mailhost:110 -L 25:mailhost:25 -1 user -N mailhost