CompTIA A+ Core 1 (220-1101)

What is the port associated with HTTP

The port associated with HTTP is port 80.

What is the port associated with HTTPS

The port associated with HTTPS is port 443.

What is the port associated with SMTP

The port associated with SMTP (Simple Mail Transfer Protocol) is port 25.

What is the port associated with POP3

The port associated with POP3 is port 110.

What is the port associated with IMAP

The port associated with IMAP (Internet Message Access Protocol) is port 143.

What is the port associated with encrypted SMTP

The port associated with encrypted SMTP is port 465.

What is the port associated with encrypted POP3

The port associated with encrypted POP3 is port 995

What is the port associated with encrypted IMAP

The port associated with encrypted IMAP is port 993.

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What is the port associated with SSH

The port associated with SSH (Secure Shell) is port 22.

What is the port associated with TLS

The port associated with TLS (Transport Layer Security) is port 443.

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What are the ports associated with FTP

The ports associated with FTP (File Transfer Protocol) are ports 20 and 21.

What is the port associated with SFTP

The port associated with SFTP (Secure File Transfer Protocol) is port 22

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What is the port associated with DNS

The port associated with DNS (Domain Name System) is port 53.

What is the port associated with DHCP

The port associated with DHCP is UDP port 67 for the DHCP server and UDP port 68 for the DHCP client.

What is the port associated with RDP

The port associated with RDP (Remote Desktop Protocol) is TCP port 3389.

What are the ports associated with NetBIOS

The ports associated with NetBIOS are ports 137 and 139

What is the port associated with LDAP

The port associated with LDAP (Lightweight Directory Access Protocol) is port number 389.

What is the port associated with IMAP4

The port associated with IMAP4 is port number 143

What are the ports associated with SNMP

The ports associated with SNMP (Simple Network Management Protocol) are UDP ports 161 and 162

What is the port associated with LDAPS (LDAP over TLS/SSL)

The port associated with LDAPS is port number 636

What is the port associated with TELNET

The port associated with TELNET is port 23

What is the port associated with SMB

The port associated with SMB (Server Message Block) is port 445

What is the port associated with TFTP?

The port associated with TFTP (Trivial File Transfer Protocol) is port 69

What is USB 1.0 known as and at what speed can it run?

Known as low speed and it can run at 1.5 megabits per second

What is USB 1.1 known as and at what speed can it run?

Known as full speed and it can run at 12 megabits per second

What is USB 2.0 known as and at what speed can it run?

Known as hi-speed and it can run at 480 megabits per second

What is USB 3.0 known as and at what speed can it run?

Known as super speed and is at least 5 gigabits per second

What is USB 3.1 known as and at what speed can it run?

Known as Gen 1 superspeed and it can run at 5 gigabits per second or 500MB/s

At what speed does USB 3.1 Gen 2 run at?

USB 3.1 Gen Two runs at 10 gigabits per second

At what speed does USB 3.2 Gen 2x2 run at?

USB 3.2 Gen 2x2 runs at 20 gigabits per second

At what speed does USB 4 run at?

USB 4 runs at 40 gigabits per second

Which two USB’s need to have a shorter cable to give the best performance?

USB 4 and a USB 3.2 Gen 2x2

What cable is most commonly used for desktops and laptops?

Type A Cable

What cable came with USB 3 and beyond, can insert in either direction, is a modern connector, and is most commonly used for more modern laptops, tablets or smartphones?

Type C Cable

What cable is most commonly used for printers?

Type B Cable

What cable is most commonly used for early tablets and smartphones and have switched to Type C in the recent years?

Type B Mini (AKA USB Mini)

What cable is most commonly used for small devices like wearables, smart glasses, music players and other similar devices?

Type B Micro (AKA USB Micro)

What cable is most commonly used for hard drives and external storage devices?

Type B Micro SuperSpeed (AKA USB Micro 3)

Which video cable is known as a high-definition multimedia interface and is the most widely used video interface in the world?

HDMI

What is the standard HDMI category that is used for video content and can only support up to 1080p and 60 Hz?

Category 1

What HDMI category uses higher resolutions and can support up to 4k and 60,120, or 144hz and includes premium highspeed of 18gbps and ultra highspeed of 48gbps?

Category 2

What does DVI stand for and what is it used for?

Digital Visual Interface / used to support both analog and digital outputs

What type of outputs/signals does DVI A support?

DVI A only supports analog signals

What type of cable uses a 15-pin standard analog video interface port that would connect to the computer

VGA

What does VGA stand for?

Video Graphics Array

Which storage cable supports speeds up to 40 gigabits per second for data transfer?

Thunderbolt

What connector does Thunderbolt 1 and 2 use?

DisplayPort

Which storage cable has a specific proprietary connector that was created by apple?

Lightning Cable

What is the standard cable that is the main method of connecting a storage device to a motherboard inside of a desktop computer?

SATA Cable

What does SATA stand for?

Serial Advanced Technology Attachment

What type of cables does SATA have and how many in a single cable?

There are 2 cables in a single SATA cable. A 7-pin data cable and a 15-pin power cable

What version of SATA can support speeds of up to 1.5 gigabits per second?

SATA Version 1

How fast can SATA version 1 transfer data?

1\.5 gigabits per second

What version of SATA can support speeds of up 3 gigabits per second?

SATA Version 2

How fast can SATA version 2 transfer data?

3 gigabits per second

What version of SATA an support speeds of up to 6 gigabits per second

SATA Version 3

How fast can SATA version 3 transfer data?

6 gigabits per second

How many pins did a PATA data cable have?

40 pins

What type of connector was used as a power connector for PATA?

A Molex cable

What does PATA stand for?

Parallel Advanced Technology Attachment

What is a Molex Power Connector?

A 4-pin connector that would attach from the power supply directly to a device

What is a legacy parallel bus connector that allowed multiple devices to be daisy chained together?

SCIS

What does SCIS stand for?

Small Computer Systems Interface

How many cables were used in a single SCIS cable and what type of cables were they?

There were 2 cables in a single SCIS cable. A high density cable that had 68-pins for data transfer and a Molex (4-pin) cable for power

What was an alternative for SCIS that had one single cable providing both power and data instead of 2 cables separating power and data?

SCA (Single Connector Attachment) which had 80 pins

How many devices were able to be daisy chained using a narrow SCIS?

7 devices

How many devices were able to be daisy chained using a wide SCIS?

15 devices

What is the maximum length/recommended length for USB 1.0 before the signal begins to deteriorate?

3 meters or 9 ft

What is the maximum length/recommended length for USB 1.1 before the signal begins to deteriorate?

5 meters or 15 ft

What is the maximum length/recommended length for USB 2.0 before the signal begins to deteriorate?

5 meters or 15 ft

What is the maximum length/recommended length for USB 3.0 before the signal begins to deteriorate?

3 meters or 9 ft

What is the maximum length/recommended length for USB 4 before the signal begins to deteriorate?

3 meters or 9 ft

What are the 6 steps to troubleshooting according to CompTIA?

1. Identify the problem
2. Establish a theory
3. Test the theory
4. Establish a plan of action
5. Verify system functionality
6. Documentation

How many HDMI connectors are there and what type of connectors are they?

3 types:

Full size (Type A connector)

Mini connector (Type C)

Micro connector (Type D)

What does DVI stand for and what type of connectors are there?

Digital Visual Interface

DVI A

DVI D

DVI I

What type of outputs/signals does DVI A support?

DVI A only supports analog signals

What type of outputs/signals does DVI D support?

DVI D only supports digital signals

What type of outputs/signals does DVI I support?

DVI I support both digital and analog signals

What does VGA stand for and what is it?

Video Graphics Array

Is the graphic standard that uses a 15-pin standard analog video interface port that would connect to the computer

What connector does Thunderbolt 1 and 2 use?

DisplayPort

What connector does Thunderbolt 3 use?

USB-C

What is the first step in the troubleshooting steps?

Identify the problem

What is the second step in the troubleshooting steps?

Establish a theory

What is the third step in the troubleshooting steps?

Test the theory

What is the fourth step in the troubleshooting steps?

Establish a plan of action

What is the fifth step in the troubleshooting steps?

Verify system functionality

What is the final step in the troubleshooting steps?

Documentation

What are the 2 types of digital storages?

Temporary (Non-persistent) and Permanent (Persistent)

What type of storage measures the speed of data in MHz or GHz?

Volatile (fast speed) and Non-volatile (slow speed)

What is volatile compared to non-volatile?

Volatile requires power to retain information and as long as that power is on, then the information is kept but as soon as power is gone (computer shut down) then the information is lost. Non-volatile is kept even when power is lost (HDDs and SSDs when the computer is shut down it keeps the storage)

What type of form factors are there for motherboards?

ATX (full-size)

Mini-ATX

Micro-ATX

ITX

Mini-ITX (technically ITX is the same as Mini-ITX since ITX is just the standard)

What does ATX stand for?

Advanced Technology eXtended

What does ITX stand for?

Information Technology eXtended

What is ATX and all its sub factors mainly used for?

Personal computers and laptops

What is ITX and all its sub factors mainly used for?

TVs, smart speakers, smartphones and other handheld objects

What are the 3 types of processors?

x86 (32-bit processor)

x64 (64-bit processor)

ARM (Advanced RISC (Reduced Instruction Set Computing) Machine)

What is an ARM processor?

A RISC processor with reduced set of instructions compared to x64 that rely on code instead of instructions to process tasks. Mainly used by Apple as their M1 series chips.

What are the 2 types of CPU sockets?

LGA (Land Grid Array)

PGA (Pin Grid Array)

What does ZIF stand for?

Zero Insertion Force

What is ZIF?

The ability to insert the CPU without having to press down or apply pressure to it