IT CertificationsAnswer Key

Exam Compass Network Plus

25 community-sourced questions and answers. Free — no login.

Community-sourced. Answers may be wrong or out of date. Always verify with your official training portal before submitting. Not affiliated with any branch, agency, or vendor. Details.
QUESTION 1

Secure Shell (SSH) protocol runs on:

ANSWER

TCP Port 22

QUESTION 2

Which UDP port is assigned to the Domain Name System (DNS)?

ANSWER

53

QUESTION 3

TCP port 25 is used by:

ANSWER

SMTP

QUESTION 4

Secure File Transfer Protocol (SFTP) is an extension to the Secure Shell Protocol (SSH) and runs by default on TCP Port...

ANSWER

22

QUESTION 5

Unblocking TCP port 22 enables what types of traffic?

ANSWER

SSH and SFTP

QUESTION 6

The File Transfer Protocol (FTP) Control Connection for administering a session is established through:

ANSWER

TCP port 21

QUESTION 7

Which port enables the FTP's Data Connection for sending file data?

ANSWER

TCP port 20

QUESTION 8

UDP port 69 is assigned to:

ANSWER

TFTP

QUESTION 9

Which TCP port is used by Telnet?

ANSWER

23

QUESTION 10

Dynamic Host Configuration Protocol (DHCP) runs on:

ANSWER

UDP ports 67 and 68

QUESTION 11

TCP port 80 is assigned to:

ANSWER

Hypertext Transfer Protocol (HTTP)

QUESTION 12

Which port is used by HTTPS?

ANSWER

TCP port 443

QUESTION 13

SNMP runs on UDP port:

ANSWER

161

QUESTION 14

A network technician uses Remote Desktop Protocol (RDP) client on their Windows OS to remotely troubleshoot a problem on another Windows machine. Which port needs to be opened for the built-in Windows RDP server to allow this type of network connection?

ANSWER

TCP port 3389

QUESTION 15

Network Time Protocol (NTP) runs on UDP port:

ANSWER

123

QUESTION 16

Which ports are assigned to the Session Initiation Protocol (SIP)?

ANSWER

TCP Port 5060 and 5061

QUESTION 17

Which protocol runs on TCP port 445?

ANSWER

SMB/CIFS

QUESTION 18

Post Office Protocol v3 (POP3) uses:

ANSWER

TCP port 110

QUESTION 19

Which TCP port number is assigned to the Internet Message Access Protocol (IMAP)?

ANSWER

143

QUESTION 20

TCP port 389 is the default network port for:

ANSWER

LDAP

QUESTION 21

A network administrator wants to secure the existing access to a directory service with SSL/TLS encryption. Which TCP port needs to be opened to implement this change?

ANSWER

636

QUESTION 22

TCP port 1720 is used by:

ANSWER

H.323

QUESTION 23

What resides at the physical layer of the OSI Model?

ANSWER

Bits and Network Cabling

QUESTION 24

The application layer of the OSI Model is also known as:

ANSWER

Layer 7

QUESTION 25

What are the characteristic components of the OSI data link layer?

ANSWER

MAC Address, Switch, and Frame

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