CNAB CORRECT EXAMS QUESTIONS AND
ANSWERS SURE A+
✔✔NETBIOS (session service) - ✔✔UDP 139
✔✔RPC - ✔✔TCP 135
✔✔SMB - ✔✔TCP 445
✔✔RDP - ✔✔TCP & UDP 3389
✔✔WinRM - ✔✔TCP 5985/5986
✔✔runlevel 0 - ✔✔Halt mode All processes terminated
✔✔runlevel 1 - ✔✔Single-user mode Used to perform administrative tasks to this
system.
✔✔runlevel 2 - ✔✔Multi-user mode Allows users to access the system
✔✔runlevel 3 - ✔✔Full multi-use mode Same as multi-user, but includes network
services.
✔✔runlevel 4 - ✔✔User-defined mode Not specified by system. Universally defined and
customizable.
✔✔runlevel 5 - ✔✔X11 Default; multi-user, network services and X-windows display
manager (X11).
✔✔runlevel 6 - ✔✔Reboot mode All processes terminated; system is gracefully
rebooted.
, ✔✔ASCII null - ✔✔0
✔✔ASCII space - ✔✔32
✔✔ASCII 0-9 - ✔✔48-57
✔✔ASCII A-Z - ✔✔65-90
✔✔ASCII a-z - ✔✔97-122
✔✔ASCII del - ✔✔127
✔✔compiled language - ✔✔converts permanently into machine code
✔✔scripting languages - ✔✔convert source code into machine code on the fly
✔✔symbolic link - ✔✔file containing the pathname of another file
✔✔inode - ✔✔contains the metadata for each file and directory
✔✔DNS resolver file Windows - ✔✔C:\WINDOWS\system32\DNS
✔✔DNS resolver file Unix - ✔✔/etc/resolv.conf
✔✔layer 7 - ✔✔application
✔✔layer 6 - ✔✔presentation
✔✔layer 5 - ✔✔session
✔✔layer 4 - ✔✔transport (TCP, UDP)
✔✔layer 3 - ✔✔network, router (IP)
✔✔layer 2 - ✔✔data link, (switch, network adapter, bridges, (ethernet, 802.11))
✔✔layer 1 - ✔✔physical (repeater, hubs)
✔✔Network Adapter (NIC) - ✔✔Layer 2: Provides interface between computer and
network medium
✔✔Repeaters - ✔✔Layer 1: Receive and regenerate signal.
ANSWERS SURE A+
✔✔NETBIOS (session service) - ✔✔UDP 139
✔✔RPC - ✔✔TCP 135
✔✔SMB - ✔✔TCP 445
✔✔RDP - ✔✔TCP & UDP 3389
✔✔WinRM - ✔✔TCP 5985/5986
✔✔runlevel 0 - ✔✔Halt mode All processes terminated
✔✔runlevel 1 - ✔✔Single-user mode Used to perform administrative tasks to this
system.
✔✔runlevel 2 - ✔✔Multi-user mode Allows users to access the system
✔✔runlevel 3 - ✔✔Full multi-use mode Same as multi-user, but includes network
services.
✔✔runlevel 4 - ✔✔User-defined mode Not specified by system. Universally defined and
customizable.
✔✔runlevel 5 - ✔✔X11 Default; multi-user, network services and X-windows display
manager (X11).
✔✔runlevel 6 - ✔✔Reboot mode All processes terminated; system is gracefully
rebooted.
, ✔✔ASCII null - ✔✔0
✔✔ASCII space - ✔✔32
✔✔ASCII 0-9 - ✔✔48-57
✔✔ASCII A-Z - ✔✔65-90
✔✔ASCII a-z - ✔✔97-122
✔✔ASCII del - ✔✔127
✔✔compiled language - ✔✔converts permanently into machine code
✔✔scripting languages - ✔✔convert source code into machine code on the fly
✔✔symbolic link - ✔✔file containing the pathname of another file
✔✔inode - ✔✔contains the metadata for each file and directory
✔✔DNS resolver file Windows - ✔✔C:\WINDOWS\system32\DNS
✔✔DNS resolver file Unix - ✔✔/etc/resolv.conf
✔✔layer 7 - ✔✔application
✔✔layer 6 - ✔✔presentation
✔✔layer 5 - ✔✔session
✔✔layer 4 - ✔✔transport (TCP, UDP)
✔✔layer 3 - ✔✔network, router (IP)
✔✔layer 2 - ✔✔data link, (switch, network adapter, bridges, (ethernet, 802.11))
✔✔layer 1 - ✔✔physical (repeater, hubs)
✔✔Network Adapter (NIC) - ✔✔Layer 2: Provides interface between computer and
network medium
✔✔Repeaters - ✔✔Layer 1: Receive and regenerate signal.
