Security Foundations - D481 - OA Study Guide Exam Questions And Answers

Security
Foundations
-
D481
-
OA
Study
Guide
File
Transfer
Protocol
(FTP)
20/21
TCP
Secure
Shell
(SSH)
22
TCP
Telnet
23
TCP
SMTP
-
Simple
Mail
Transfer
Protocol
is
used
to
send
email
over
the
internet
25
TCP
DNS
-
Domain
Name
Service
is
used
to
resolve
hostnames
to
IPs
and
IPs
to
hostnames
53
TCP/UDP
DHCP
-
Dynamic
Host
Configuration
Protocol.
Auto
config.
of
IP
address,
subnet
mask
&
other
options.
Requires
a
DHCP
server,
and
appliance
integrated
into
a
SOHO
router.
Server
to
Client
-
Sends
Message
67
UDP
DHCP
-
Dynamic
Host
Configuration
Protocol.
Auto
config.
of
IP
address,
subnet
mask
&
other
options.
Requires
a
DHCP
server,
and
appliance
integrated
into
a
SOHO
router.
Client
to
Server
-
Receives
Message
68
UDP
TFTP
-
Trivial
FTP
is
used
as
a
simplified
version
of
FTP
to
put
a
file
on
a
remote
host,
or
get
a
file
from
a
remote
host
69
UDP Finger
protocol
(user
information)
79
TCP
HyperText
Transfer
Protocol
(HTTP)
(browsing
websites)
80
TCP
Kerberos
88
UDP
POP3
-
Post
Office
Protocol
v3
is
used
to
receive
email
from
a
mail
server
110
TCP
IMAP
-
Internet
Message
Access
Protocol
is
used
to
receive
email
from
a
mail
server
with
more
features
than
POP3
143
TCP
Hypertext
Transfer
Protocol
Secure
(HTTPS)
443
TCP
Lightweight
Directory
Access
Protocol
(LDAP)
389
TCP/UDP
Lightweight
Directory
Access
Protocol
Secure
(LDAPS)
636
TCP/UDP
Remote
Desktop
Protocol
(RDP)
3389
TCP/UDP
How
are
analog
transmissions
waves
measured
which
is
the
number
of
cycles
per
second
that's
measured?
Frequency
(also
called
hertz) A
Physical
Layer
device
that
converts
an
Ethernet
signal
from,
for
example,
fiber
optic
to
copper
transmission
media
Media
converter
1-green/white,
2-green,
3-orange/white,
6-orange
TIA-568A
Wiring
Pin
Colors
1-
orange/white,
2-orange,
3-green/white,
6-green
TIA-568B
Wiring
Pin
Colors
Backbone
that's
more
restrictive
because
they
must
rely
on
physical
device
location
to
isolate
departmental
LANs
from
one
another
Flat
backbone
Minimizes
traffic
flowing
between
departmental
LANs
by
replacing
a
bus
with
one
or
more
central
switches
Collapsed
backbone
When
an
IP
receives
a
packet
from
a
higher
layer
and
adds
additional
data
in
a
new
IP
header
to
the
packet
Encapsulation
What
is
this
drawbacks
of?
Fiber
optic
cabling
is
required
to
connect
each
departmental
LAN
to
the
central
switch
The
central
switch
represents
a
single
point
of
failure.
If
the
switch
fails,
no
traffic
can
travel
between
departmental
LANs
Drawbacks
of
a
Collapsed
backbone