Main practice Flashcards
1
Q
FTP
A
20 and 21
1
Q
TFTP Port
A
69
2
Q
SFTP
A
23
3
Q
802.3AF
A
15.4 W at distance of up to 100 m
4
Q
802.3AT
A
25 W at distance of up to 100 m
5
Q
IMAP Port
A
143
6
Q
crimper
A
connects RJ45 connector to a patch cable
7
Q
https port
A
443
8
Q
RJ45 connector
A
used to terminate copper twisted-pair ethernet cable
9
Q
SMB port
A
139
10
Q
NetBIOS port
A
137
11
Q
LCD
A
fluorescent lamp backlight
12
Q
IPS
A
wide viewing angle
13
Q
Double image printer
A
dirty drum
14
Q
SMTP port
A
port 25
15
Q
signal that can get through walls easier
A
2.4 Ghz, which has longer wavelength
16
Q
SSH
A
port 22
17
Q
multimeter
A
measures voltage, amps, and resistance of a circuit
- determine if properly grounded or there is an open circuit
18
Q
loopback plug
A
tests a port
19
Q
DHCP reservation
A
matches a MAC address to an IP address within the DHCP scope
20
Q
punchdown tool
A
used to connect a network cable (such as Cat 5e) to a patch panel, 110-block, or the inside portion of a wall jack
21
Q
wire stripper
A
used to remove the outer plastic shielding from the Cat 5e cable so that you can reach the inner wiring pairs
22
Q
cable tester
A
used to verify the electrical connections in a twisted pair or coaxial cable
23
Q
EPS 12V
A
- 8 pins
- yellow and black wires
24
SATA
- attaches internal drives to motherboard
- 4 or 5 wires, all watts
25
Molex KK
- connect fan to motherboard
- 3 circular pins (B, Y, R)
26
Molex
- older cable that supplies power to peripheral devices
- 4 pins
27
2.4 Ghz
- longer wavelength = longer range
- better at getting through surfaces
- lower data rates
- higher levels of congestion/interference
28
5 Ghz
- shorter wavelength
- higher data rates
- more individual channels
29
IPS
- great color accuracy
- great viewing angle
- lower refresh rates
30
TN
high refresh rates
- strong viewing angle dependence
- can be in budget display
31
VA
middle ground between IPS and TN
32
jitter
occurs when a time delay in the sending of data packets over a network connection occurs
33
latency
measure of time it takes for data to get to its destination
34
ST connector
quick-release bayonet-style connector that has a long cylindrical connector
- terminate fiber optic cables
35
F connector
used with coaxial
36
Cat 5e
1 Gbps, 100m
37
Cat 3
10 Mbps, 100m
38
ethernet coax
10 Mbps
39
fiber optic cable
10 Gbps, greater distances
40
Cat 6a
10 Gbps, 100 m
41
mini ITX
6.7 x 6.7
- used in smaller computer systems
- smallest form factor
42
Telnet port
23
- unsecure
43
SATA connectors
15 pins, 7 pin varieties
44
Thunderbolt
20 and 24 pin varieties
45
SCSI
50 and 36 pin varieties
46
DVI-I
technology that is capable of connecting a digital source to an analog display or an analog source to a digital display
47
chip creep``
an adapter works loose from its socket over time. This may happen perhaps because of temperature changes causing the plastic to flex over time.
- can also happen because dirt and dust
48
type 1 hypervisor
installed directly on the computer
- bare metal
49
extended read and write time reasons
bad sectors, bad blocks
50
least to most volatile storage
mSATA, HDD, USB, RAM, CPU cache
51
how many disk drives raid 0
2 or more
52
802.3af
up to about 13 W
53
802.3at
up to about 25 W
54
802.3bt
up to about 51 W
55
network access point
access appliance, such as a switch, access point, firewall, or VPN gateway. It is the device that a system makes a connection to in order to access a network.
56
gigabit ethernet
1000BASE-T
57
3.2 Gen 2x1
up to 10 Gbps
58
USB 3.2 Gen 1
up to 5 gbps
59
USB 3.2 Gen 2x2 Superspeed USB
2 x 10 gbps
60
three long beeps
keyboard issue
61
continuous beep
memory issue
62
two short beeps
POST error
63
motherboard issue beep code
- no beeps
- repeating short beeps
64
no LED on HDD?
no system power, or faulty disk
65
HDD mechanical issue signs
grinding disk platters, clicking noises
66
constant LED activity on HDD
-disk thrashing = disk is constantly read, may be due to malware
-low system memory = not enough RAM so virtual memory constantly using
67
benefits to SMART feature
check for physical damage and performance issues
68
crimpers
attach jacks to RJ45 cables after removing the outer jacket
69
cable stripper
removes a section of the cable sheath without damaging the insulation on the inner wire pairs to score the outer jacket just enough to remove it
70
loopback plug
can test NICs or switch ports
71
punchdown tools
press individual RJ45 wires into insulation displacement connectors
- terminates wall ports and patch panels using IDCs
72
wifi analyzers
measure wireless signal strength to determine best wireless channel layout, collect network statistics, troubleshoot network performance, and detect other access points
73
network tap
intercept ethernet signals passing over a cable and send/save them
74
punchdown block
also known as insulation displacement connectors (IDCs), which terminate the permanent cable to wall ports and patch panels.
75
cable tester
use a pair of devices attached to each end of a cable, testing a patch cord or those connected via patch cords to a wall port and patch panel testing permanent links
76
Cat 5
100 Mbps Fast Ethernet standard
77
VGA
15 pin connector, analog video interface
78
SATA connector pins
15
79
ST connector
bayonet-style connector that uses a push-and-twist locking mechanism. It's commonly used in multi-mode networks, but can also be used with single-mode fibers.
80
FC connector
used for single-mode fibers in high-speed network environments, such as data centers or telecom applications
81
F type connector
- used with coaxial cables
- used for CATV and broadband cable modem installations.
