COMPTIA A+ 1101 Cards Actual Exam Questions and Verified Answers.
What does SATA stand for? - (ANSWER)Serial advanced technology connection
What does PCI stand for? - (ANSWER)Peripheral component interconnect, legacy
Type of communication of PCI? - (ANSWER)32bit and 64bit parallel communication
Voltage of PCI? - (ANSWER)3.3V and 5V
What is the NFC range? - (ANSWER)4cm
What does LCD stand for and how does it work? - (ANSWER)Liquid crystal display, light shines through
liquid filters
What are the types of LCD and what do they stand for? - (ANSWER)TN = twisted nemantic
IPS = in plane switching
VA = vertical alignment
Difference between different LCD types? - (ANSWER)TN = better response time, bad wide angles, low
power
IPS = better colors, more expensive, good angles
VA = best contrast, bad angles
Different types of LCD backlights? - (ANSWER)CCFL = cold cathode fluorescent lamp
LED
What is special about CCFL? - (ANSWER)Uses AC power when the computer requires DC, so need an
inverter
,COMPTIA A+ 1101 Cards Actual Exam Questions and Verified Answers.
How many pins is USB-C? What makes it special? - (ANSWER)24pins, can be used to transmit other
signals (HDMI, DisplayPort)
What was used before USB connectivity and with what kind of signal? How many pins? - (ANSWER)DB-9
cable with RS232 signal, 9pin
What kind of stylus' are there? - (ANSWER)Capacitive stylus = touch pen
Active stylus = apple pencil, can communicate independently of the screen
What is the older type of headset connection? With what type of signal? - (ANSWER)3.5mm TRRS (tip
ring ring sleeve) with an analog signal
What were the 2G networks? What did they stand for? - (ANSWER)GSM = global system for mobile
communication
CDMA = code division multiple access
What companies used GSM and how did it work? - (ANSWER)AT+T and T-Mobile, has multiplexing
What does multiplexing mean? - (ANSWER)Multiple data signals use the same channel without
interference
What companies used CDMA? How did it work? - (ANSWER)Verizon and Sprint, each person used a
different code
What was the purpose of 4G? What did it stand for? - (ANSWER)To combine GSM and CDMA, LTE = long
term evolution
What does EDGE stand for? - (ANSWER)Enhanced data rates for GSM evolution
,COMPTIA A+ 1101 Cards Actual Exam Questions and Verified Answers.
What is PRL? How does it update? - (ANSWER)Preferred roaming list, so your cell phone can connect to
the right tower, updates OTA (over the air)
How does GPS work? - (ANSWER)30 satellites in the air, your device needs to see 4 for accurate location
What does MDM stand for? And do? - (ANSWER)Mobile device management, companies can manage
user devices through one console
What is meant by a partition? - (ANSWER)Keeping company data and private data separate
What are the two types of IP payloads? What do they stand for? - (ANSWER)TCP = transmission control
protocol
UDP = user datagram protocol
What does in the clear mean? - (ANSWER)Not encrypted
Why not just have the IP payload? - (ANSWER)TCP and UDP allow for multiplexing with different
applications and ports
How does TCP work? - (ANSWER)Requires formal setup/teardown process to establish protocol, called a
reliable system because will make sure data reaches server, also has flow control to make sure one side
is not getting data too quickly
Examples of TCP? - (ANSWER)HTTPS = hypertext transfer protocol secure
SSH = secure shell
How does UDP work? - (ANSWER)No formal setup process, no confirmation of data sent, for real time
communication
Examples of UDP? - (ANSWER)DHCP = dynamic host config protocol
, COMPTIA A+ 1101 Cards Actual Exam Questions and Verified Answers.
TFTP = trivial file transfer protocol
What are the different kinds of ports? - (ANSWER)Non-ephemeral (permanent port) = same port for the
same service
Ephemeral = client side port that changes
What is a key fact about ports? About TCP and UDP using ports? - (ANSWER)For communication, not
security
TCP and UDP can use the same port numbers at the same time
FTP? - (ANSWER)File transfer protocol tcp/20 tcp/21 file transfer between systems
Telnet? - (ANSWER)tcp/23 in the clear remote command console access
SSH? - (ANSWER)Secure shell tcp/22 encrypted communication for command console
SMTP? - (ANSWER)Simple mail transfer protocol tcp/25 only sending mail not receiving
DNS? - (ANSWER)Domain name system udp/53 converts web addresses to IPs and vice versa
DHCP? - (ANSWER)Dynamic host configuration protocol udp/67/68 assigns IP address settings to local
machines
HTTP/HTTPS? - (ANSWER)Hypertext transfer protocol (secured) tcp/80 tcp/443
POP3? - (ANSWER)Post office protocol v3 tcp/110 mail just on one device
IMAP? - (ANSWER)Internet message access protocol v4 tcp/143 manage email from multiple clients
What does SATA stand for? - (ANSWER)Serial advanced technology connection
What does PCI stand for? - (ANSWER)Peripheral component interconnect, legacy
Type of communication of PCI? - (ANSWER)32bit and 64bit parallel communication
Voltage of PCI? - (ANSWER)3.3V and 5V
What is the NFC range? - (ANSWER)4cm
What does LCD stand for and how does it work? - (ANSWER)Liquid crystal display, light shines through
liquid filters
What are the types of LCD and what do they stand for? - (ANSWER)TN = twisted nemantic
IPS = in plane switching
VA = vertical alignment
Difference between different LCD types? - (ANSWER)TN = better response time, bad wide angles, low
power
IPS = better colors, more expensive, good angles
VA = best contrast, bad angles
Different types of LCD backlights? - (ANSWER)CCFL = cold cathode fluorescent lamp
LED
What is special about CCFL? - (ANSWER)Uses AC power when the computer requires DC, so need an
inverter
,COMPTIA A+ 1101 Cards Actual Exam Questions and Verified Answers.
How many pins is USB-C? What makes it special? - (ANSWER)24pins, can be used to transmit other
signals (HDMI, DisplayPort)
What was used before USB connectivity and with what kind of signal? How many pins? - (ANSWER)DB-9
cable with RS232 signal, 9pin
What kind of stylus' are there? - (ANSWER)Capacitive stylus = touch pen
Active stylus = apple pencil, can communicate independently of the screen
What is the older type of headset connection? With what type of signal? - (ANSWER)3.5mm TRRS (tip
ring ring sleeve) with an analog signal
What were the 2G networks? What did they stand for? - (ANSWER)GSM = global system for mobile
communication
CDMA = code division multiple access
What companies used GSM and how did it work? - (ANSWER)AT+T and T-Mobile, has multiplexing
What does multiplexing mean? - (ANSWER)Multiple data signals use the same channel without
interference
What companies used CDMA? How did it work? - (ANSWER)Verizon and Sprint, each person used a
different code
What was the purpose of 4G? What did it stand for? - (ANSWER)To combine GSM and CDMA, LTE = long
term evolution
What does EDGE stand for? - (ANSWER)Enhanced data rates for GSM evolution
,COMPTIA A+ 1101 Cards Actual Exam Questions and Verified Answers.
What is PRL? How does it update? - (ANSWER)Preferred roaming list, so your cell phone can connect to
the right tower, updates OTA (over the air)
How does GPS work? - (ANSWER)30 satellites in the air, your device needs to see 4 for accurate location
What does MDM stand for? And do? - (ANSWER)Mobile device management, companies can manage
user devices through one console
What is meant by a partition? - (ANSWER)Keeping company data and private data separate
What are the two types of IP payloads? What do they stand for? - (ANSWER)TCP = transmission control
protocol
UDP = user datagram protocol
What does in the clear mean? - (ANSWER)Not encrypted
Why not just have the IP payload? - (ANSWER)TCP and UDP allow for multiplexing with different
applications and ports
How does TCP work? - (ANSWER)Requires formal setup/teardown process to establish protocol, called a
reliable system because will make sure data reaches server, also has flow control to make sure one side
is not getting data too quickly
Examples of TCP? - (ANSWER)HTTPS = hypertext transfer protocol secure
SSH = secure shell
How does UDP work? - (ANSWER)No formal setup process, no confirmation of data sent, for real time
communication
Examples of UDP? - (ANSWER)DHCP = dynamic host config protocol
, COMPTIA A+ 1101 Cards Actual Exam Questions and Verified Answers.
TFTP = trivial file transfer protocol
What are the different kinds of ports? - (ANSWER)Non-ephemeral (permanent port) = same port for the
same service
Ephemeral = client side port that changes
What is a key fact about ports? About TCP and UDP using ports? - (ANSWER)For communication, not
security
TCP and UDP can use the same port numbers at the same time
FTP? - (ANSWER)File transfer protocol tcp/20 tcp/21 file transfer between systems
Telnet? - (ANSWER)tcp/23 in the clear remote command console access
SSH? - (ANSWER)Secure shell tcp/22 encrypted communication for command console
SMTP? - (ANSWER)Simple mail transfer protocol tcp/25 only sending mail not receiving
DNS? - (ANSWER)Domain name system udp/53 converts web addresses to IPs and vice versa
DHCP? - (ANSWER)Dynamic host configuration protocol udp/67/68 assigns IP address settings to local
machines
HTTP/HTTPS? - (ANSWER)Hypertext transfer protocol (secured) tcp/80 tcp/443
POP3? - (ANSWER)Post office protocol v3 tcp/110 mail just on one device
IMAP? - (ANSWER)Internet message access protocol v4 tcp/143 manage email from multiple clients
