CNAB CORRECT EXAMS QUESTIONS AND ANSWERS SURE A.pdf

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.