Comp Tia A+ Essentials
What does BIOS stand for?
Basic Input/Output System
What does IP stand for?
Internet Protocol
What port does HTTP use by default?
Port 80
404 Means what?
Page not found
What does POST stand for?
Power-On-Self-Test
What is the purpose for thermal paste?
To transfer heat from the CPU to the heatsink
What does the "ping" command test?
Network connectivity between devices
What port is used by HTTPS
Port 443
"Access is denied" means lack of what?
Permissions
You can access websites by IP but not by name. What's likely the problem?
DNS issue.
What is the function of a CMOS battery?
Maintains BIOS settings and system clock when the PC is off
What is the difference between IPV4 and IPV6?
IPV4 uses 32bit addresses; IPV6 uses 128-bit addresses (more possible IPs)
What port is used for Remote Desktop Protocol
Port 3389
BSOD stand for?
Blue Screen of Death
A user complains their system is slow, what's the one quick software fix you can try first?
Check Task Manager for high CPU/memory processes
What type of memory is non-volatile and retains data without power?
ROM or Flash Memory
What's the IP address for localhost?
127.0.0.1
What are the default ports for SMTP
Port 25
"This device cannot start (Code 10) usually points to?
Driver issue
What is the purpose of a subnet mask?
Defines network and host portions of an IP address?
What wireless standard operates at 5 GHz and supports higher speeds than 802.11n?
802.11ac
What OSI layer is responsible for encryption and data formatting?
Layer 6 - Presentation
What port is used for Secure Shell (SSH) connection?
Port 22
1693252.x.x IP Address
What is a DHCP failure causing the computer to self-assign an APIPA address?
What type of network topology is used in most home and office networks?
Star topology