COMP TIA 220-1002 AND PORTS

A technician arrives on site to find that two users who have the same model on Android smartphone are having the same issue with a specific application. Whenever they attempt to launch the application, it fails and gives an error message. Which of the following should the technician do FIRST?

• Reinstall the application

• Roll back the application to the earlier version

• Clear the application cache

• Update the OS of the smartphones

A technician is working on a Windows 10 PC that is running slowly. Which of the following commands should the technician use to correct the issue? (Select two.)

• dir

• chdsk

• dism

• ipconfig

• diskpart

An administrator is setting up a Windows terminal server. Which of the following settings should the administrator modify to increase server security? (Select two.)

• Change the default access port

• Enforce password complexity

• Put the terminal server into the router's DMZ

• Disable logon time restrictions

• Block all unused ports on the LAN smart switch

What seven-layer model is often used to describe networking technologies and services?

• OSI

• TCP/IP

• IPX/SPX

• DIX

On which OSI layer do routers function?

• 1

• 2

• 3

• 4

On which OSI layer do TCP and UDP function?

• 1

• 2

• 3

• 4

What port number is FTP (File Transfer Protocol)?

• tcp 22

• tcp 20 or 21

• tcp 23

• tcp 161

What port does SMTP use?

• 21

• 23

• 25

• 443

What port does LDAP use?

• 25

• 443

• 389

• 3389

What port number is SSH (Secure Shell)?

• tcp 53

• tcp 21

• tcp 20

• tcp 22