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 s...

Which of the following services belongs to NFSv4 and does not exist in NFSv3? A. rpc.idmapd B. rpc.statd C. nfsd D. rpc.mountd

In a BIND zone file, what does the @ character indicate? A. It's the fully qualified host name of the DNS server B. It's an alias for the e-mail address of the zone master C. It's the name of the...

Which FTP names are recognized as anonymous users in vsftp when the option anonymous_enable is set to yes in the configuration files? (Choose two.) A. anonymous B. ftp C. In the described configu...

In order to prevent all anonymous FTP users from listing uploaded file names, what security precaution can be taken when creating an upload directory? A. The directory must not have the execute per...

Which command is used to administer IPv6 netfilter rules? A. iptables B. iptablesv6 C. iptables6 D. ip6tables E. ipv6tables

Which command is used to configure which file systems a NFS server makes available to clients? A. exportfs B. mkfs.nfs C. mount D. nfsservctl E. telinit

「中文數字」是中文的數字表示方式，例如「123」，可以表示為「一百二十三」。中文數字如同英文字母一樣有區分大小寫，例如「123」的中文數字小寫為「一百二十三」，大寫則為「壹佰貳拾參」。至於單位則有個、十、百、千、萬、億、兆、京等等，相同單位的數量級也並非只有一種，而是分為下數、萬進、中數和上數這主要四種系統。中文數字是老祖宗的智慧，但對於現在的數位系統來說並不怎麼合適，還是得經過轉換才行。那麼要如...

Which of the following lines is valid in a configuration file in /etc/pam.d/? A. auth required pam_unix.so try_first_pass nullok B. auth try_first_pass nullok, require pam_unix.so C. auth require...

What command displays NFS kernel statistics? (Specify ONLY the command without any path or parameters.)