Security+ Certification Exam - Port Numbers Quiz

A network administrator has been asked to set up a VPN link on a connecting host with no dedicated VPN client application installed. Which of the following ports should be in use to enable this type of connection? 119 443 23 139 143

443

In order to be able to run a secure web server, the server needs to be configured to accept connections on port: 80 443 23 143

443

Which of the ports listed below are used by client applications designed to retrieve email messages from mail servers? (Select 2 answers) 110 443 3389 143 25

110 25

Which of the following ports are used by NetBIOS? (Select all that apply) 136 137 161 138 162 139

137 138 139

An SNMP management station receives SNMP notifications on UDP port: 161 137 162 138

162

File Transfer Protocol (FTP) runs by default on port(s): (Select all that apply) 25 23 20 21 22

21/21

A network administrator wants to replace service running on port 23 with a more reliable solution. Which of the following ports would be in use after implementing this change? 20 21 22 25

22

Secure Copy (SCP) runs on port: 20 22 21 23

22

A hacker has captured network traffic with cleartext commands sent from the client to the server console. Which of the following ports is being used by the network admin for the client-server communication? 49 23 68 22

23

FTPS is an extension to the Secure Shell protocol (SSH) and runs by default on port number 22. True False

False

The NetBIOS session service runs by default on UDP port 139. True False

False

Which of the following ports is used by DNS? 53 67 23 68 52

53

A network administrator wants to secure the existing access to a directory service with SSL/TLS encryption. Which of the following ports would be in use after implementing this change? 636 139 389 443

636

Which of the answers listed below refers to a port number for a lightweight protocol typically used for transferring boot files and configuration files between hosts in a secure Intranet environment? 20 69 21 22

69

Which of the port numbers listed below is used by the Trivial File Transfer Protocol (TFTP)? 88 139 22 69

69

Running a web server requires a firewall rule that allows network traffic on TCP port: 80 110 88 53

80

3389 is the default port number for: Lightweight Directory Access Protocol over TLS/SSL (LDAPS) Remote Desktop Protocol (RDP) Lightweight Directory Access Protocol (LDAP) Simple Network Management Protocol (SNMP)

Remote Desktop Protocol (RDP)

Secure File Transfer Protocol (SFTP) is an extension to the Secure Shell protocol (SSH) and runs by default on port number 22. True False

True

Unblocking port number 22 enables what type of traffic? (Select all that apply) SSH SFTP FTP SCP FTPS

SSH SFTP SCP

TCP port 443 is used by: Simple Mail Transfer Protocol (SMTP) File Transfer Protocol (FTP) Hypertext Transfer Protocol over TLS/SSL (HTTPS) Internet Message Access Protocol (IMAP)

Hypertext Transfer Protocol over TLS/SSL (HTTPS)

TCP port 143 is used by: Hypertext Transfer Protocol (HTTP) Simple Mail Transfer Protocol (SMTP) Internet Message Access Protocol (IMAP) Remote Desktop Protocol (RDP)

Internet Message Access Protocol (IMAP)

Which of the following is the default port number used by the Kerberos authentication system? 80 3389 88 443

88

A network administrator has been asked to establish secure network link for exchanging files between two remote hosts. Which of the following ports should be in use to enable this type of network connection? 23 21 20 22

22

Which of the following TCP port numbers is used by the Simple Mail Transfer Protocol (SMTP)? 110 25 22 143

25

Which of the following default port numbers is not used by a remote administration tool? 23 22 3389 25

25

A technician uses an RDP client on their Windows OS in order to remotely troubleshoot a problem on another Windows machine. Which of the following ports needs to be opened for the built-in Windows RDP server to allow this type of network connection? 1701 139 3389 110

3389

Network traffic on port 389 indicates existence of an active: VPN connection Message transfer agent Directory service Web server

Directory service

Which of the following statements are true? (Select all that apply) Secure File Transfer Protocol (SFTP) runs by default on port 22 Secure Copy (SCP) runs by default on port 22 Secure Shell (SSH) runs by default on port 22 File Transfer Protocol over SSL (FTPS) runs by default on port 22 Trivial File Transfer Protocol (TFTP) runs by default on port 22

Secure File Transfer Protocol (SFTP) runs by default on port 22 Secure Copy (SCP) runs by default on port 22 Secure Shell (SSH) runs by default on port 22

Which of the ports listed below is used by TACACS+? UDP port 161 TCP port 49 UDP port 1701 TCP port 110 UDP port 49

TCP port 49