CompTIA Security+ Certification Exam - Port Numbers

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

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

69

TCP port 143 is used by:

IMAP

Which of the ports listed below are used by client applications designed to retrieve email messages from mail servers?

110 143

Which of the following ports are used by NetBIOS?

137 138 139

An SNMP Agent receives requests on UDP port:

161

Secure Copy (SCP) runs on port:

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?

23

The NetBIOS session service runs by default on UDP port 139

False Port 137

TCP port 443 is used by:

HTTPS

Unblocking port number 22 enables what type of traffic?

SSH SFTP SCP

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

True

Which of the ports listed below is used by TACACS+?

UDP 49

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

Port 25

3389 is the default port number for:

RDP

Which of the following statements are true? A. Secure File Transfer Protocol (SFTP) runs by default on port 22 B. Secure Copy (SCP) runs by default on port 22 C. Secure Shell (SSH) runs by default on port 22 D. File Transfer Protocol over SSL (FTPS) runs by default on port 22 E. Trivial File Transfer Protocol (TFTP) runs by default on port 22

STFP port 22 SCP port 22 SSH port 22

An SNMP management station receives SNMP notifications on UDP port:

162

File Transfer Protocol (FTP) runs by default on port(s):

20 21

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?

22

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?

22

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

443

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

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?

3389

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?

443

Which of the following ports is used by DNS?

53

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?

69

Running a web server requires a firewall rule that allows network traffic on TCP port:

80

Which of the following is the default port number used by the Kerberos authentication system?

88

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

False Port 21

Network traffic on port 389 indicates existence of an active

Directory service