COMPTIA A+ 220-1101 CORE 1 STUDY FLASHCARDS QUESTIONS AND
ANSWERS
Local Area Network (LAN) - CORRECT ANSWER✅✅A network that covers a relatively small area such as
a building or group of buildings
(1.1 & 2.7)
Personal Area Network (PAN) - CORRECT ANSWER✅✅- Provides communication for devices owned by a
single user that work over a short distance
- Bluetooth, IR, NFC, etc.
(1.1 & 2.7)
LCD (Liquid Crystal Display) - CORRECT ANSWER✅✅Lightweight & Inexpensive - Poor black levels due to
Separate Backlight
(1.2)
TN (twisted nematic) - CORRECT ANSWER✅✅Fast response Times - Low cost - Low Power Use - Limited
Viewing Angles
(1.2)
IPS (In Plane Switching) - CORRECT ANSWER✅✅Better Colors - Better Viewing Angles - More Expensive
(1.2)
OLED (organic light-emitting diode) - CORRECT ANSWER✅✅Thinner & Brighter - No Need for Backlight
(1.2)
MDM (mobile device management) - CORRECT ANSWER✅✅- Manage company & user devices
- Centralized management system
- Ensures device security
(1.4)
,MAM (mobile application management) - CORRECT ANSWER✅✅- Set policies & restrictions on apps
- Control Company software (Update, Remove, Etc.)
(1.4)
PRL (Preferred Roaming List) - CORRECT ANSWER✅✅- Allows phone to connect to the right tower
(1.4)
Port 20/21 - CORRECT ANSWER✅✅FTP (File Transfer Protocol)
- 20(TCP) for Data Transfers
- 21(TCP) to Control Data Transfers
(2.1)
Port 22 - CORRECT ANSWER✅✅SSH (Secure Shell) - TCP
- Encrypted Communication
- Looks/Acts the same as Telnet
(2.1)
Port 23 - CORRECT ANSWER✅✅Telnet (Telecommunications Network) - TCP
- Non-encrypted Communication
- Log into devices remotely
(2.1)
Port 25 - CORRECT ANSWER✅✅SMTP (Simple Mail Transfer Protocol) - TCP
- Used to send mail from device to mail server
(2.1)
Port 53 - CORRECT ANSWER✅✅DNS (Domain Name System) - UDP
, - Converts names to IP addresses
- CRITICAL Resource
(2.1)
Port 67/68 - CORRECT ANSWER✅✅DHCP (Dynamic Host Configuration Protocol) - UDP
- Automated configuration of IP addresses
- IPs can be reserved for certain devices
- IP Range: 10.1.10.10 through 10.1.10.199
(2.1)
Port 80 - CORRECT ANSWER✅✅HTTP (Hypertext Transfer Protocol) - TCP
- Non-encrypted communication in the browser
(2.1)
Port 110 - CORRECT ANSWER✅✅POP3 (Post Office Protocol 3) - TCP
- Receive emails from an email server
- Basic mail transfer functionality
(2.1)
Port 143 - CORRECT ANSWER✅✅IMAP (Internet Mail Access Protocol) - TCP
- Includes management of email inboxes from multiple clients. (Sync email across multiple devices)
(2.1)
Port 161/162 - CORRECT ANSWER✅✅SNMP (Simple Network Management Protocol) - UDP
- Port 161 queries devices for performance statistics.
- Port 162 monitors when metrics exceed a certain threshold.
(2.1)
ANSWERS
Local Area Network (LAN) - CORRECT ANSWER✅✅A network that covers a relatively small area such as
a building or group of buildings
(1.1 & 2.7)
Personal Area Network (PAN) - CORRECT ANSWER✅✅- Provides communication for devices owned by a
single user that work over a short distance
- Bluetooth, IR, NFC, etc.
(1.1 & 2.7)
LCD (Liquid Crystal Display) - CORRECT ANSWER✅✅Lightweight & Inexpensive - Poor black levels due to
Separate Backlight
(1.2)
TN (twisted nematic) - CORRECT ANSWER✅✅Fast response Times - Low cost - Low Power Use - Limited
Viewing Angles
(1.2)
IPS (In Plane Switching) - CORRECT ANSWER✅✅Better Colors - Better Viewing Angles - More Expensive
(1.2)
OLED (organic light-emitting diode) - CORRECT ANSWER✅✅Thinner & Brighter - No Need for Backlight
(1.2)
MDM (mobile device management) - CORRECT ANSWER✅✅- Manage company & user devices
- Centralized management system
- Ensures device security
(1.4)
,MAM (mobile application management) - CORRECT ANSWER✅✅- Set policies & restrictions on apps
- Control Company software (Update, Remove, Etc.)
(1.4)
PRL (Preferred Roaming List) - CORRECT ANSWER✅✅- Allows phone to connect to the right tower
(1.4)
Port 20/21 - CORRECT ANSWER✅✅FTP (File Transfer Protocol)
- 20(TCP) for Data Transfers
- 21(TCP) to Control Data Transfers
(2.1)
Port 22 - CORRECT ANSWER✅✅SSH (Secure Shell) - TCP
- Encrypted Communication
- Looks/Acts the same as Telnet
(2.1)
Port 23 - CORRECT ANSWER✅✅Telnet (Telecommunications Network) - TCP
- Non-encrypted Communication
- Log into devices remotely
(2.1)
Port 25 - CORRECT ANSWER✅✅SMTP (Simple Mail Transfer Protocol) - TCP
- Used to send mail from device to mail server
(2.1)
Port 53 - CORRECT ANSWER✅✅DNS (Domain Name System) - UDP
, - Converts names to IP addresses
- CRITICAL Resource
(2.1)
Port 67/68 - CORRECT ANSWER✅✅DHCP (Dynamic Host Configuration Protocol) - UDP
- Automated configuration of IP addresses
- IPs can be reserved for certain devices
- IP Range: 10.1.10.10 through 10.1.10.199
(2.1)
Port 80 - CORRECT ANSWER✅✅HTTP (Hypertext Transfer Protocol) - TCP
- Non-encrypted communication in the browser
(2.1)
Port 110 - CORRECT ANSWER✅✅POP3 (Post Office Protocol 3) - TCP
- Receive emails from an email server
- Basic mail transfer functionality
(2.1)
Port 143 - CORRECT ANSWER✅✅IMAP (Internet Mail Access Protocol) - TCP
- Includes management of email inboxes from multiple clients. (Sync email across multiple devices)
(2.1)
Port 161/162 - CORRECT ANSWER✅✅SNMP (Simple Network Management Protocol) - UDP
- Port 161 queries devices for performance statistics.
- Port 162 monitors when metrics exceed a certain threshold.
(2.1)
