最新なCompTIA LX0-104問題集（180題）、真実試験の問題を全部にカバー！

質問 1：
What is a purpose of an SSH host key?
A. It is used by system services like cron, syslog or a backup job to automatically connect to remote hosts.
B. It must be sent by any SSH client in addition to a user key in order to identify the client's host.
C. It authenticates any user that logs into a remote machine from the key's host.
D. It is the root key by which all user SSH keys must be signed.
E. It provides the server's identity information to connecting SSH clients.
正解：E
解説: (Pass4Test メンバーにのみ表示されます)

質問 2：
FILL BLANK
Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)
正解：
up
Section: Networking Fundamentals

質問 3：
Which of the following are commonly used Mail Transfer Agent (MTA) applications? (Choose THREE correct answers.)
A. Postfix
B. Procmail
C. SMTPd
D. Exim
E. Sendmail
正解：A,D,E
解説: (Pass4Test メンバーにのみ表示されます)

質問 4：
Which of the following commands are used to manage the environment and shell variables within a shell process? (choose two correct answers.)
A. reset
B. tset
C. init
D. set
E. export
正解：D,E
解説: (Pass4Test メンバーにのみ表示されます)

質問 5：
On a regular users workstation the route command takes a long time before printing out the routing table.
Which of the following errors does that indicate?
A. One of the routers in the routing table is not available which causes the automatic router failure detectionmechanism (ARF-D) to wait for a timeout.
B. The local routing information may be corrupted and must be re-validated using a routing protocol.
C. There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.
D. DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.
正解：D
解説: (Pass4Test メンバーにのみ表示されます)