CompTIA A+ and Network+ Basics

What port does HTTPS use?

• 22
• 80
• 443
• 53

The ____ executes instructions and is called the computer's brain.

• RAM
• CPU
• PSU
• SSD

RAM keeps its data even when power is lost.

• True
• False

When was the A+ certification first introduced?

• 1999
• 1985
• 2001
• 1993

Which port does DNS use?

• 80
• 67
• 53
• 25

____ drives use flash memory and have no moving parts.

• PSUs
• HDDs
• SSDs
• CPUs

The Network+ certification was launched in 1999.

• True
• False

How many layers does the OSI model have?

• Five
• Seven
• Six
• Four

Which OSI layer manages IP addresses and routing?

• Transport
• Physical
• Data Link
• Network

TCP is connectionless while UDP is reliable.

• True
• False

Which port does SSH use?

• 25
• 22
• 21
• 23

The PSU converts AC from an outlet into ____ for components.

• MAC
• TCP
• RAM
• DC

What is the range of well-known ports?

• 1024 to 65535
• 0 to 1023
• 0 to 65535
• 0 to 443

CompTIA A+ and Network+ are vendor-neutral certifications.

• True
• False

How many steps are in CompTIA's troubleshooting method?

• Six
• Seven
• Four
• Five