GFACT Exam Review Book 1 Latest Update

GFACT Exam Review Book 1 Latest Update

• Actual Exam 200 Questions and 100%

Verified Correct Answers Guaranteed A+

-rwxr-x-w- 1 user www-data 20 Sep 26 09:58 permissions_example - CORRECT

ANSWER: This file now has the following permissions:

The user owner, 'user' can: Read, Write and Execute this file (because the permissions are rwx).

The group owner, 'www-data' can: Read and Execute, but NOT Write (because the

permissions are r-x).

Anyone else can: Write, but not Read or Execute (because the permissions are -w-).

::1 - CORRECT ANSWER: IPV6 loopback address

(user)@SANS:~$ - CORRECT ANSWER: the user account in ()

$template statement - CORRECT ANSWER: for log servers it is the legacy way to

declare a template

1024 Byte - CORRECT ANSWER: 1 byte is 8 bits.

• kibibyte (KiB) is 1024 bytes.
• mebibyte (MiB) is 1024 kibibytes.
• gibibyte (GiB) is 1024 mebibytes.
• tebibyte (TiB) is 1024 gibibytes.

127.0.0.1 - CORRECT ANSWER: IPv4 Loopback Address

A Record - CORRECT ANSWER: is the 'Address Mapping' record. This is the key

record that maps a domain name to an IPv4 address

AAAA Record - CORRECT ANSWER: is the 'IPv6 Address Mapping' record. The

equivalent of an A record, but for IPv6 addresses

APFS (Apple File System) - CORRECT ANSWER: In macOS, the default file system for SSDs; it can also be used for magnetic hard drives. APFS uses the GUID partitioning system.

*supports permissions and encryption, *duplicate files can be stored without using additional space, with changes to one copy of a file being saved as a delta (the difference between the old file and the new file) to lower space requirements 1 / 3

API (Application Programming Interface) - CORRECT ANSWER: allows the

programmers to write a few lines of code in their software that will call another application with a query and receive a response

Application Layer - CORRECT ANSWER: The seventh layer of the OSI model;

protocols that enable software programs to negotiate formatting, procedural, security, synchronization, and other requirements with the network.

apropos - CORRECT ANSWER: used to search man pages for keywords, usually to

find the 'appropriate' tool to use in a particular situation

apt-get - CORRECT ANSWER: Search for and install software packages

(Debian/Ubuntu)

ARP (Address Resolution Protocol) - CORRECT ANSWER: A communications protocol

that resolves IP addresses to MAC addresses.

ATX (Advanced Technology Extended) cable - CORRECT ANSWER: runs to the

motherboard

Authoritative nameserver - CORRECT ANSWER: retrieve the specific IP address of the origin server for the provided web domain name, which the resolver will pass back to the client.

bash (Bourne again shell) - CORRECT ANSWER: Default for most Linux systems, it is an enhanced version of the original SHELL program.

The default path for bash is /bin/bash. The first '/' means the root of the file system, from the root of the file system, in the 'bin' folder is the 'bash' program

bg (background) - CORRECT ANSWER: allow process to keep running, except it will

run in the background

Bios (Basic Input Output Services) - CORRECT ANSWER: software that helps initialize the hardware in our computer and gets our operating system up and running

Bits - CORRECT ANSWER: the smallest unit of data in a computer

All data in a computer system is made up of bits:

• byte is 8 bits.
• kilobyte (kB) is 1000 bytes.
• megabyte (MB) is 1000 kilobytes.
• gigabyte (GB) is 1000 megabytes.
• terabyte (TB) is 1000 gigabytes. 2 / 3

Oh, and 4 bits (half a byte) is called a nibble...

Bootloader - CORRECT ANSWER: program that is loaded by the BIOS when a

computer is first turned on; responsible for loading the operating system

bottom level domain server / bottom level server - CORRECT ANSWER: will know what the exact address is for the resource requested, and it will send it to the recursive resolver, which gives the IP address back to the user

Bus Topology - CORRECT ANSWER: A LAN configuration in which all nodes are

connected by the same Ethernet cable

Buses - CORRECT ANSWER: responsible for moving data btw components

Caching - CORRECT ANSWER: If a name server makes a query and discovers the IP

address a domain points to, it can cache the result for a time; provides a measure of efficiency so that not every request to a domain has to be sent to the authoritative name server each and every time.

cat - CORRECT ANSWER: joining the contents of several files together and then

printing the result to the terminal

cd - CORRECT ANSWER: changes directories

shorthands:

cd ~ > turn to current user's home folder cd .. > directory one level above the current directory, aka parent directory

chrp - CORRECT ANSWER: change group owner of a file permission

CIDR (Classless Inter Domain Routing) - CORRECT ANSWER: A notation in which the

subnet mask is identified following the IP address; noted as '/'

clear - CORRECT ANSWER: clear text on the terminal; Ctrl + L has same capabilities

Client-side - CORRECT ANSWER: the device that is being used to connect to the web site

Clock Speed - CORRECT ANSWER: dictates how many instructions the CPU can

process each second

• processor that can execute one instruction per second has a clock speed of 1 Hz

(hertz)

Cluster - CORRECT ANSWER: smallest section of the disk that can be used to store a file

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