Ports 20 and 21 - Study guides, Class notes & Summaries
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Sybex CYSA+ assessment test Questions and Answers with complete solution
- Exam (elaborations) • 12 pages • 2023
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After running an nmap scab of a system, you receive scan data that indicates the following ports are 
open: 
22/tcp 
443/tcp 
1521/tcp 
What services commonly run on these ports? 
A. SMTP, NetBIOS, MySQL 
B. SSH, Microsoft DS, WINS 
C.SSH, HTTPS, Oracle 
D.FTP, HTTPS, MS-SQL - C. SSH, HTTPS, Oracle 
These three TCP ports are associated with SSH (22), HTTPS(443), and Orcale data-bases (1521) 
Other ports mentioned in the potential answers are SMTP (25), NetBIOS (137-139), MySQL (3306), WINS 
(151...
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COMPTIA NETWORK+ N10-008 TCP Ports and Protocols Questions and Answers 100% Pass
- Exam (elaborations) • 8 pages • 2024
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COMPTIA NETWORK+ N10-008 TCP 
Ports and Protocols Questions and 
Answers 100% Pass 
FTP (File Transfer Protocol) - Correct Answer ️️ -20, 21 
FTP (File Transfer Protocol) - Correct Answer ️️ -A protocol used to move files and 
folders over a network or the Internet. Unsecured. 
FTP - Correct Answer ️️ -File Transfer Protocol 
What ports are for FTP (File Transfer Protocol - Correct Answer ️️ -20, 21 
SSH (Secure Shell) - Correct Answer ️️ -22 
SSH - Correct Answer ️️ -a c...
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Data Communications and Networking Solution Manual 2024 with Complete Solution.
- Exam (elaborations) • 170 pages • 2024
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Data Communications and Networking Solution Manual 2024 with Complete Solution. 
CHAPTER 1 
Introduction 
Solutions to Review Questions and Exercises 
Review Questions 
1. The five components of a data communication system are the sender, receiver, 
transmission medium, message, and protocol. 
2. The advantages of distributed processing are security, access to distributed databases, collaborative processing, and faster problem solving. 
3. The three criteria are performance, reliability, and sec...
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CompTIA A+ 1001 EXAM QUESTIONS AND ANSWERS
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CompTIA A+ 1001 EXAM QUESTIONS AND ANSWERS 
 
Non-ephemeral ports - Answer-0 through 1023 
 
Ephemeral Ports - Answer-1024 through 65535 
 
Non-Ephemeral - Answer-Permanent 
 
Ephemeral - Answer-Temporary 
 
Web Server Port (HTTP) - Answer-tcp/80 
 
Email Server Port - Answer-tcp/143 
 
FTP Data Port - Answer-tcp/20 
 
FTP Control Port - Answer-tcp/21 
 
SSH Port - Answer-tcp/22 
 
FTP - Answer-File Transfer Protocol 
 
Telnet - Answer-tcp/23 
 
Telnet Security - Answer-Unencrypted 
 
SSH - Answ...
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Data Communications and Networking Solution Manual 2024 with Complete Solution.
- Exam (elaborations) • 170 pages • 2024
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- $20.99
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Data Communications and Networking Solution Manual 2024 with Complete Solution. 
CHAPTER 1 
Introduction 
Solutions to Review Questions and Exercises 
Review Questions 
1. The five components of a data communication system are the sender, receiver, 
transmission medium, message, and protocol. 
2. The advantages of distributed processing are security, access to distributed databases, collaborative processing, and faster problem solving. 
3. The three criteria are performance, reliability, and sec...
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Network + Port Numbers Latest 2023/2024 with Verified Solutions
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FTP File Transfer Protocol: transfers files between clients and servers. Originally used two 
ports: 21 for control messages and 20 for the actual data. Use names and passwords are sent in 
clear text, posing a potentially serious security risk. 
Port: 20 and 21 
Transport Protocol: TCP 
Telnet Telnet enables a user to log in remotely and execute commands on a remote host. 
Often used to log into UNIX/Linux hosts and managed network devices such as routers and 
switches. Sends user names and pas...
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WGU C701 MASTER'S COURSE ETHICAL TEST (QUESTIONS AND ANSWERS) 2023/2024
- Exam (elaborations) • 27 pages • 2023
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WGU C701 MASTER'S COURSE 
ETHICAL TEST (QUESTIONS AND 
ANSWERS) 2023/2024 
Which of the following information security elements guarantees that the sender of a 
message cannot later deny having sent the message and the recipient cannot deny 
having received the message? 
A Confidentiality 
B Non-repudiation 
C Availability 
D Integrity - CORRECT ANSWER-B 
A phase of the cyber kill chain methodology triggers the adversary's malicious code, 
which utilizes a vulnerability in the operating s...
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Data Communications and Networking Solution Manual 2024 with Complete Solution.
- Exam (elaborations) • 170 pages • 2024
-
- $22.99
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Data Communications and Networking Solution Manual 2024 with Complete Solution. 
CHAPTER 1 
Introduction 
Solutions to Review Questions and Exercises 
Review Questions 
1. The five components of a data communication system are the sender, receiver, 
transmission medium, message, and protocol. 
2. The advantages of distributed processing are security, access to distributed databases, collaborative processing, and faster problem solving. 
3. The three criteria are performance, reliability, and sec...
-
COMPTIA NETWORK+ N10-008 TCP Ports and Protocols Questions and Answers 100% Pass
- Exam (elaborations) • 8 pages • 2024
- Available in package deal
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- $12.49
- + learn more
COMPTIA NETWORK+ N10-008 TCP 
Ports and Protocols Questions and 
Answers 100% Pass 
FTP (File Transfer Protocol) - Correct Answer ️️ -20, 21 
FTP (File Transfer Protocol) - Correct Answer ️️ -A protocol used to move files and 
folders over a network or the Internet. Unsecured. 
FTP - Correct Answer ️️ -File Transfer Protocol 
What ports are for FTP (File Transfer Protocol - Correct Answer ️️ -20, 21 
SSH (Secure Shell) - Correct Answer ️️ -22 
SSH - Correct Answer ️️ -a c...
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Port exam questions & answers 2024/2025
- Exam (elaborations) • 4 pages • 2024
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Port exam questions & answers 2024/2025 
 
 
Well Known (Common) Ports - ANSWERS0-1023 
 
FTP - ANSWERSTCP/UDP 20(data) and TCP 21(control) 
File Transfer Protocol 
 
SSH - ANSWERSTCP/UDP 22 
Secure Shell 
 
Telnet - ANSWERSTCP/UDP 23 
 
SMTP - ANSWERSTCP 25 
Simple Mail Transfer Protocol 
 
DNS - ANSWERSTCP/UDP 53 
Domain Name System 
 
DHCP - ANSWERSUDP 67(IPv4 client) and UDP 68(IPv4 server); 
TCP/UDP 546(IPv6 client) and TCP/UDP 547(IPv6 server) 
Dynamic Host Configuration Protocol 
 
TFTP...
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