Software Engineering Mcqs

In which tcp_wrappers file can you specify to allow all connections from all hosts ?

• (A)  /etc/hosts.allow
• (B)  /etc/hosts.deny
• (C)  /etc/hosts
• (D)  /etc/tcp.conf

Answer

Submitted By :Ali Uppal

What command is used to display the characteristics of a process ?

• (A)  au
• (B)  ps
• (C)  du
• (D)  pid

Answer

Submitted By :Ali Uppal

The command used to remove the directory is_______________?

• (A)  rmdir
• (B)  rd
• (C)  remove
• (D)  rdir

Answer

Submitted By :Ali Uppal

What command is used to count just the number of lines contained in a file ?

• (A)  wc – r
• (B)  wc – w
• (C)  wc – c
• (D)  wc – l

Answer

Submitted By :Ali Uppal

Which of the following commands is used to assign executable permission to the owner of the file named “note” ?

• (A)  chmod g+x note
• (B)  chmod u+w note
• (C)  chmod u+x note
• (D)  chmod ugo+x note

Answer

Submitted By :Ali Uppal

What command is used with vi editor to append text at end of line ?

• (A)  I
• (B)  i
• (C)  a
• (D)  A

Answer

Submitted By :Ali Uppal

In OSI network architecture, the routing is performed by_______________?

• (A)  session layer
• (B)  transport layer
• (C)  data link layer
• (D)  network layer

Answer

Submitted By :Ali Uppal

Which command will be used with vi editor to replace text from cursor to right ?

• (A)  r
• (B)  R
• (C)  s
• (D)  S

Answer

Submitted By :Ali Uppal

What sign is used to erase or kill an entire line you have typed and start you are on a new line (but not display a new prompt) ?

• (A)  !
• (B)  $
• (C)  #
• (D)  @

Answer

Submitted By :Ali Uppal

What port does squid listen, by default ?

• (A)  4322
• (B)  2314
• (C)  7334
• (D)  3128

Answer

Submitted By :Ali Uppal